Aortic valve. Medical search

The valve between the left ventricle and the ascending aorta which prevents backflow into the left ventricle.

A pathological constriction that can occur above (supravalvular stenosis), below (subvalvular stenosis), or at the AORTIC VALVE. It is characterized by restricted outflow from the LEFT VENTRICLE into the AORTA.

Pathological condition characterized by the backflow of blood from the ASCENDING AORTA back into the LEFT VENTRICLE, leading to regurgitation. It is caused by diseases of the AORTIC VALVE or its surrounding tissue (aortic root).

Pathological conditions involving any of the various HEART VALVES and the associated structures (PAPILLARY MUSCLES and CHORDAE TENDINEAE).

The valve between the left atrium and left ventricle of the heart.

Surgical insertion of synthetic material to repair injured or diseased heart valves.

A device that substitutes for a heart valve. It may be composed of biological material (BIOPROSTHESIS) and/or synthetic material.

Prosthesis, usually heart valve, composed of biological material and whose durability depends upon the stability of the material after pretreatment, rather than regeneration by host cell ingrowth. Durability is achieved 1, mechanically by the interposition of a cloth, usually polytetrafluoroethylene, between the host and the graft, and 2, chemically by stabilization of the tissue by intermolecular linking, usually with glutaraldehyde, after removal of antigenic components, or the use of reconstituted and restructured biopolymers.

A valve situated at the entrance to the pulmonary trunk from the right ventricle.

The valve consisting of three cusps situated between the right atrium and right ventricle of the heart.

Procedures in which placement of CARDIAC CATHETERS is performed for therapeutic or diagnostic procedures.

Backflow of blood from the LEFT VENTRICLE into the LEFT ATRIUM due to imperfect closure of the MITRAL VALVE. This can lead to mitral valve regurgitation.

The downward displacement of the cuspal or pointed end of the trileaflet AORTIC VALVE causing misalignment of the cusps. Severe valve distortion can cause leakage and allow the backflow of blood from the ASCENDING AORTA back into the LEFT VENTRICLE, leading to aortic regurgitation.

Pathologic deposition of calcium salts in tissues.

Inflammation of the ENDOCARDIUM caused by BACTERIA that entered the bloodstream. The strains of bacteria vary with predisposing factors, such as CONGENITAL HEART DEFECTS; HEART VALVE DISEASES; HEART VALVE PROSTHESIS IMPLANTATION; or intravenous drug use.

Abnormal protrusion or billowing of one or both of the leaflets of MITRAL VALVE into the LEFT ATRIUM during SYSTOLE. This allows the backflow of blood into left atrium leading to MITRAL VALVE INSUFFICIENCY; SYSTOLIC MURMURS; or CARDIAC ARRHYTHMIA.

The plan and delineation of prostheses in general or a specific prosthesis.

Narrowing of the passage through the MITRAL VALVE due to FIBROSIS, and CALCINOSIS in the leaflets and chordal areas. This elevates the left atrial pressure which, in turn, raises pulmonary venous and capillary pressure leading to bouts of DYSPNEA and TACHYCARDIA during physical exertion. RHEUMATIC FEVER is its primary cause.

Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues using a transducer placed in the esophagus.

Flaps within the VEINS that allow the blood to flow only in one direction. They are usually in the medium size veins that carry blood to the heart against gravity.

Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic.

A type of heart valve surgery that involves the repair, replacement, or reconstruction of the annuli of HEART VALVES. It includes shortening the circumference of the annulus to improve valve closing capacity and reinforcing the annulus as a step in more complex valve repairs.

Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.

Inflammation of the inner lining of the heart (ENDOCARDIUM), the continuous membrane lining the four chambers and HEART VALVES. It is often caused by microorganisms including bacteria, viruses, fungi, and rickettsiae. Left untreated, endocarditis can damage heart valves and become life-threatening.

An abnormal balloon- or sac-like dilatation in the wall of AORTA.

Backflow of blood from the RIGHT VENTRICLE into the RIGHT ATRIUM due to imperfect closure of the TRICUSPID VALVE.

Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from INTUBATION in that the tube here is used to restore or maintain patency in obstructions.

A type of heart valve surgery that involves the repair, replacement, or reconstruction of the annulus of the MITRAL VALVE. It includes shortening the circumference of the annulus to improve valve closing capacity and reinforcing the annulus as a step in more complex valve repairs.

Measurement of intracardiac blood flow using an M-mode and/or two-dimensional (2-D) echocardiogram while simultaneously recording the spectrum of the audible Doppler signal (e.g., velocity, direction, amplitude, intensity, timing) reflected from the moving column of red blood cells.

A repeat operation for the same condition in the same patient due to disease progression or recurrence, or as followup to failed previous surgery.

Developmental abnormalities involving structures of the heart. These defects are present at birth but may be discovered later in life.

Malfunction of implantation shunts, valves, etc., and prosthesis loosening, migration, and breaking.

The condition of an anatomical structure's being dilated beyond normal dimensions.

Echocardiography applying the Doppler effect, with the superposition of flow information as colors on a gray scale in a real-time image.

Surgery performed on the heart.

Levels within a diagnostic group which are established by various measurement criteria applied to the seriousness of a patient's disorder.

Widening of a stenosed HEART VALVE by the insertion of a balloon CATHETER into the valve and inflation of the balloon.

Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.

The dilatation of the aortic wall behind each of the cusps of the aortic valve.

Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.

Elements of limited time intervals, contributing to particular results or situations.

Types of spiral computed tomography technology in which multiple slices of data are acquired simultaneously improving the resolution over single slice acquisition technology.

The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.

The fitting and adjusting of artificial parts of the body. (From Stedman's, 26th ed)

Techniques for securing together the edges of a wound, with loops of thread or similar materials (SUTURES).

The pathologic narrowing of the orifice of the PULMONARY VALVE. This lesion restricts blood outflow from the RIGHT VENTRICLE to the PULMONARY ARTERY. When the trileaflet valve is fused into an imperforate membrane, the blockage is complete.

Graphic registration of the heart sounds picked up as vibrations and transformed by a piezoelectric crystal microphone into a varying electrical output according to the stresses imposed by the sound waves. The electrical output is amplified by a stethograph amplifier and recorded by a device incorporated into the electrocardiograph or by a multichannel recording machine.

Echocardiography amplified by the addition of depth to the conventional two-dimensional ECHOCARDIOGRAPHY visualizing only the length and width of the heart. Three-dimensional ultrasound imaging was first described in 1961 but its application to echocardiography did not take place until 1974. (Mayo Clin Proc 1993;68:221-40)

Restoration of an organ or other structure to its original site.

Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.

The tendinous cords that connect each cusp of the two atrioventricular HEART VALVES to appropriate PAPILLARY MUSCLES in the HEART VENTRICLES, preventing the valves from reversing themselves when the ventricles contract.

The main trunk of the systemic arteries.

A benign tumor of fibrous or fully developed connective tissue.

A long, narrow, and flat bone commonly known as BREASTBONE occurring in the midsection of the anterior thoracic segment or chest region, which stabilizes the rib cage and serves as the point of origin for several muscles that move the arms, head, and neck.

A pathological process consisting of hardening or fibrosis of an anatomical structure, often a vessel or a nerve.

Flaps of tissue that prevent regurgitation of BLOOD from the HEART VENTRICLES to the HEART ATRIA or from the PULMONARY ARTERIES or AORTA to the ventricles.

Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.

Pathological processes involving any part of the AORTA.

A surgical specialty concerned with diagnosis and treatment of disorders of the heart, lungs, and esophagus. Two major types of thoracic surgery are classified as pulmonary and cardiovascular.

An aspect of personal behavior or lifestyle, environmental exposure, or inborn or inherited characteristic, which, on the basis of epidemiologic evidence, is known to be associated with a health-related condition considered important to prevent.

A conical fibro-serous sac surrounding the HEART and the roots of the great vessels (AORTA; VENAE CAVAE; PULMONARY ARTERY). Pericardium consists of two sacs: the outer fibrous pericardium and the inner serous pericardium. The latter consists of an outer parietal layer facing the fibrous pericardium, and an inner visceral layer (epicardium) resting next to the heart, and a pericardial cavity between these two layers.

Diversion of the flow of blood from the entrance of the right atrium directly to the aorta (or femoral artery) via an oxygenator thus bypassing both the heart and lungs.

The qualitative or quantitative estimation of the likelihood of adverse effects that may result from exposure to specified health hazards or from the absence of beneficial influences. (Last, Dictionary of Epidemiology, 1988)

Surgery performed on the heart or blood vessels.

The lower right and left chambers of the heart. The right ventricle pumps venous BLOOD into the LUNGS and the left ventricle pumps oxygenated blood into the systemic arterial circulation.

Surgical incision into the chest wall.

Making an incision in the STERNUM.

The amount of BLOOD pumped out of the HEART per beat, not to be confused with cardiac output (volume/time). It is calculated as the difference between the end-diastolic volume and the end-systolic volume.

A condition characterized by the thickening of ENDOCARDIUM due to proliferation of fibrous and elastic tissue, usually in the left ventricle leading to impaired cardiac function (CARDIOMYOPATHY, RESTRICTIVE). It is most commonly seen in young children and rarely in adults. It is often associated with congenital heart anomalies (HEART DEFECTS CONGENITAL;) INFECTION; or gene mutation. Defects in the tafazzin protein, encoded by TAZ gene, result in a form of autosomal dominant familial endocardial fibroelastosis.

Theoretical representations that simulate the behavior or activity of the cardiovascular system, processes, or phenomena; includes the use of mathematical equations, computers and other electronic equipment.

The hemodynamic and electrophysiological action of the left HEART VENTRICLE. Its measurement is an important aspect of the clinical evaluation of patients with heart disease to determine the effects of the disease on cardiac performance.

Studies to determine the advantages or disadvantages, practicability, or capability of accomplishing a projected plan, study, or project.

The protrusion of an organ or part of an organ into a natural or artificial orifice.

A distribution in which a variable is distributed like the sum of the squares of any given independent random variable, each of which has a normal distribution with mean of zero and variance of one. The chi-square test is a statistical test based on comparison of a test statistic to a chi-square distribution. The oldest of these tests are used to detect whether two or more population distributions differ from one another.

Impaired impulse conduction from HEART ATRIA to HEART VENTRICLES. AV block can mean delayed or completely blocked impulse conduction.

A birth defect characterized by the narrowing of the AORTA that can be of varying degree and at any point from the transverse arch to the iliac bifurcation. Aortic coarctation causes arterial HYPERTENSION before the point of narrowing and arterial HYPOTENSION beyond the narrowed portion.

A pathological constriction occurring in the region below the AORTIC VALVE. It is characterized by restricted outflow from the LEFT VENTRICLE into the AORTA.

Cardiac manifestation of systemic rheumatological conditions, such as RHEUMATIC FEVER. Rheumatic heart disease can involve any part the heart, most often the HEART VALVES and the ENDOCARDIUM.

Polyester polymers formed from terephthalic acid or its esters and ethylene glycol. They can be formed into tapes, films or pulled into fibers that are pressed into meshes or woven into fabrics.

A procedure to stop the contraction of MYOCARDIUM during HEART SURGERY. It is usually achieved with the use of chemicals (CARDIOPLEGIC SOLUTIONS) or cold temperature (such as chilled perfusate).

Tumors in any part of the heart. They include primary cardiac tumors and metastatic tumors to the heart. Their interference with normal cardiac functions can cause a wide variety of symptoms including HEART FAILURE; CARDIAC ARRHYTHMIAS; or EMBOLISM.

Developmental abnormalities in any portion of the VENTRICULAR SEPTUM resulting in abnormal communications between the two lower chambers of the heart. Classification of ventricular septal defects is based on location of the communication, such as perimembranous, inlet, outlet (infundibular), central muscular, marginal muscular, or apical muscular defect.

Criteria and standards used for the determination of the appropriateness of the inclusion of patients with specific conditions in proposed treatment plans and the criteria used for the inclusion of subjects in various clinical trials and other research protocols.

Surgical therapy of ischemic coronary artery disease achieved by grafting a section of saphenous vein, internal mammary artery, or other substitute between the aorta and the obstructed coronary artery distal to the obstructive lesion.

Tomography using x-ray transmission and a computer algorithm to reconstruct the image.

Procedures that avoid use of open, invasive surgery in favor of closed or local surgery. These generally involve use of laparoscopic devices and remote-control manipulation of instruments with indirect observation of the surgical field through an endoscope or similar device.

Blocking of a blood vessel by an embolus which can be a blood clot or other undissolved material in the blood stream.

An autosomal dominant disorder of CONNECTIVE TISSUE with abnormal features in the heart, the eye, and the skeleton. Cardiovascular manifestations include MITRAL VALVE PROLAPSE, dilation of the AORTA, and aortic dissection. Other features include lens displacement (ectopia lentis), disproportioned long limbs and enlarged DURA MATER (dural ectasia). Marfan syndrome is associated with mutations in the gene encoding fibrillin, a major element of extracellular microfibrils of connective tissue.

In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test.

Removal of an implanted therapeutic or prosthetic device.

The valve, at the junction of the CECUM with the COLON, that guards the opening where the ILEUM enters the LARGE INTESTINE.

Radiographic visualization of the aorta and its branches by injection of contrast media, using percutaneous puncture or catheterization procedures.

The sounds heard over the cardiac region produced by the functioning of the heart. There are four distinct sounds: the first occurs at the beginning of SYSTOLE and is heard as a "lubb" sound; the second is produced by the closing of the AORTIC VALVE and PULMONARY VALVE and is heard as a "dupp" sound; the third is produced by vibrations of the ventricular walls when suddenly distended by the rush of blood from the HEART ATRIA; and the fourth is produced by atrial contraction and ventricular filling.

Heart sounds caused by vibrations resulting from the flow of blood through the heart. Heart murmurs can be examined by HEART AUSCULTATION, and analyzed by their intensity (6 grades), duration, timing (systolic, diastolic, or continuous), location, transmission, and quality (musical, vibratory, blowing, etc).

Methods of creating machines and devices.

A nonparametric method of compiling LIFE TABLES or survival tables. It combines calculated probabilities of survival and estimates to allow for observations occurring beyond a measurement threshold, which are assumed to occur randomly. Time intervals are defined as ending each time an event occurs and are therefore unequal. (From Last, A Dictionary of Epidemiology, 1995)

A vital statistic measuring or recording the rate of death from any cause in hospitalized populations.

The main artery of the thigh, a continuation of the external iliac artery.

A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.

The period following a surgical operation.

Inflammation of the wall of the AORTA.

A device designed to stimulate, by electric impulses, contraction of the heart muscles. It may be temporary (external) or permanent (internal or internal-external).

Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).

Catheters inserted into various locations within the heart for diagnostic or therapeutic purposes.

One of the protein CROSS-LINKING REAGENTS that is used as a disinfectant for sterilization of heat-sensitive equipment and as a laboratory reagent, especially as a fixative.

Act of listening for sounds within the heart.

Obstruction of a blood vessel (embolism) by a blood clot (THROMBUS) in the blood stream.

Aneurysm caused by a tear in the TUNICA INTIMA of a blood vessel leading to interstitial HEMORRHAGE, and splitting (dissecting) of the vessel wall, often involving the AORTA. Dissection between the intima and media causes luminal occlusion. Dissection at the media, or between the media and the outer adventitia causes aneurismal dilation.

Enlargement of the LEFT VENTRICLE of the heart. This increase in ventricular mass is attributed to sustained abnormal pressure or volume loads and is a contributor to cardiovascular morbidity and mortality.

A condition in which the LEFT VENTRICLE of the heart was functionally impaired. This condition usually leads to HEART FAILURE; MYOCARDIAL INFARCTION; and other cardiovascular complications. Diagnosis is made by measuring the diminished ejection fraction and a depressed level of motility of the left ventricular wall.

Infections resulting from the implantation of prosthetic devices. The infections may be acquired from intraoperative contamination (early) or hematogenously acquired from other sites (late).

The two dimensional measure of the outer layer of the body.

Motion pictures of the passage of contrast medium through blood vessels.

Occlusion of the outflow tract in either the LEFT VENTRICLE or the RIGHT VENTRICLE of the heart. This may result from CONGENITAL HEART DEFECTS, predisposing heart diseases, complications of surgery, or HEART NEOPLASMS.

Investigation of the theory and mechanism of the origin of the second heart sound. (1/2271)

To investigate further the origin of the second heart sound we studied human subjects, dogs, and a model in vitro of the cardiovascular system. Intra-arterial sound, pressure, and, where possible, flow and high speed cine (2,000 frames/sec) were utilized. The closure sound of the semilunar valves was of higher amplitude in be ventricles than in their respective arterial cavities. The direction of inscription of the main components of intra-arterial sound were opposite in direction to the components of intraventricular sound. Notches, representative of pressure increments, were noted on the ventricular pressure tracings and were coincident with the components of sound. The amplitude of the closure sound varied with diastolic pressure, but remained unchanged with augmentation of forward and retrograde aortic flow. Cines showed second sound to begin after complete valvular closure, and average leaflet closure rate was constant regardless of pressure. Hence, the semilunar valves, when closed, act as an elastic membrane and, when set into motion, generate compression and expansion of the blood, producing transient pressure changes indicative of sound. The magnitude of the initial stretch is related to the differential pressure between the arterial and ventricular chambers. Sound transients which follow the major components of the second sound appear to be caused by the continuing stretch and recoil of the leaflets. Clinically unexplained findings such as the reduced or absent second sound in calcific aortic stenosis and its paradoxical presence in congenital aortic stenosis may be explained by those observations. (+info)

Acetylcholine-induced membrane potential changes in endothelial cells of rabbit aortic valve. (2/2271)

1. Using a microelectrode technique, acetylcholine (ACh)-induced membrane potential changes were characterized using various types of inhibitors of K+ and Cl- channels in rabbit aortic valve endothelial cells (RAVEC). 2. ACh produced transient then sustained membrane hyperpolarizations. Withdrawal of ACh evoked a transient depolarization. 3. High K+ blocked and low K+ potentiated the two ACh-induced hyperpolarizations. Charybdotoxin (ChTX) attenuated the ACh-induced transient and sustained hyperpolarizations; apamin inhibited only the sustained hyperpolarization. In the combined presence of ChTX and apamin, ACh produced a depolarization. 4. In Ca2+-free solution or in the presence of Co2+ or Ni2+, ACh produced a transient hyperpolarization followed by a depolarization. In BAPTA-AM-treated cells, ACh produced only a depolarization. 5. A low concentration of A23187 attenuated the ACh-induced transient, but not the sustained, hyperpolarization. In the presence of cyclopiazonic acid, the hyperpolarization induced by ACh was maintained after ACh removal; this maintained hyperpolarization was blocked by Co2+. 6. Both NPPB and hypertonic solution inhibited the membrane depolarization seen after ACh washout. Bumetanide also attenuated this depolarization. 7. It is concluded that in RAVEC, ACh produces a two-component hyperpolarization followed by a depolarization. It is suggested that ACh-induced Ca2+ release from the storage sites causes a transient hyperpolarization due to activation of ChTX-sensitive K+ channels and that ACh-activated Ca2+ influx causes a sustained hyperpolarization by activating both ChTX- and apamin-sensitive K+ channels. Both volume-sensitive Cl- channels and the Na+-K+-Cl- cotransporter probably contribute to the ACh-induced depolarization. (+info)

Extent and severity of atherosclerotic involvement of the aortic valve and root in familial hypercholesterolaemia. (3/2271)

OBJECTIVE: To compare the frequency of valvar and supravalvar aortic stenosis in homozygous and heterozygous familial hypercholesterolaemia (FH). DESIGN: Analysis of life time cholesterol exposure and prevalence of aortic atherosclerosis in 84 consecutive cases attending a lipid clinic. SETTING: A tertiary referral centre in London. PATIENTS: Outpatients with FH (six homozygous, 78 heterozygous). INTERVENTIONS: Maintenance of lipid lowering treatment. MAIN OUTCOME MEASURES: Calculated cholesterol x years score (CYS) and echocardiographic measurement of aortic root diameter, aortic valve thickness, and transaortic gradient. RESULTS: Four homozygotes with a mean (SD) CYS of 387 (124) mmol/1 x years had severe aortic stenosis (treatment started after seven years of age), whereas the other two had echocardiographic evidence of supravalvar thickening but no aortic valve stenosis (treatment started before three years of age). On multivariate analysis, mean transaortic gradient correlated significantly with CYS (mean = 523 (175) mmol/1 x years) in heterozygotes (p = 0.0001), but only two had severe aortic valve and root involvement. CONCLUSIONS: In patients with familial hypercholesterolaemia, aortic stenosis is common in homozygotes, and aortic root involvement is always present despite the lower CYS than in heterozygotes. It appears to be determined by short term exposure to high cholesterol concentrations in early life. Conversely, aortic root and valve involvement are rare in heterozygotes and occur only with severe, prolonged hypercholesterolaemia, possibly accelerating age related degenerative effects. (+info)

Bileaflet mechanical prostheses for aortic valve replacement in patients younger than 65 years and 65 years of age or older: major thromboembolic and hemorrhagic complications. (4/2271)

OBJECTIVE: To determine major thromboembolic and hemorrhagic complications and predictive risk factors associated with aortic valve replacement (AVR), using bileaflet mechanical prostheses (CarboMedics and St. Jude Medical). DESIGN: A case series. SETTING: Cardiac surgical services at the teaching institutions of the University of British Columbia. PATIENTS AND METHODS: Patients 2 age groups who had undergone AVR between 1989 and 1994 were studied. Group 1 comprised 384 patients younger than 65 years. Group 2 comprised 215 patients 65 years of age and older. RESULTS: The linearized rates of major thromboembolism (TE) occurring after AVR were 1.54%/patient-year for group 1 and 3.32%/patient-year for group 2; the rates for major TE occurring more than 30 days after AVR were 1.13%/patient-year for group 1 and 1.55%/patient-year for group 2. The crude rates for major TE occurring within 30 days of AVR were 1.04% for group 1 and 3.72% for group 2. The death rate from major TE in group 1 was 0.31%/patient-year and in group 2 was 0.88%/patient-year. Of the major TE events occurring within 30 days, 100% of patients in both age groups were inadequately anticoagulated at the time of the event, and for events occurring more than 30 days after AVR, 45% in group 1 and 57% in group 2 were inadequately anticoagulated (INR less than 2.0). The overall linearized rates of major hemorrhage were 1.54%/patient-year for group 1 and 2.21%/patient-year for group 2. There were no cases of prosthesis thrombosis in either group. The mean (and standard error) overall freedom from major TE for group 1 patients at 5 years was 95.6% (1.4%) and with exclusion of early events was 96.7% (1.3%); for group 2 patients the rates were 90.0% (3.2%) and 93.7% (3.0%), respectively. The mean (and SE) overall freedom from major and fatal TE and hemorrhage for group 1 patients was 90.1% (2.3%) and with exclusion of early events was 91.2% (2.3%); for group 2 patients the rates were 87.9% (3.1%) and 92.5% (2.9%), respectively. The 5-year rate for freedom from valve-related death for group 1 patients was 96.3% (2.1%) and for group 2 patients was 97.2% (1.2%). CONCLUSION: The thromboembolic and hemorrhagic complications after AVR with bileaflet mechanical prostheses occur more frequently and result in more deaths in patients 65 years of age and older than in patients years younger than 65 years. (+info)

Minimally invasive aortic valve replacement through a transverse sternotomy: a word of caution. (5/2271)

OBJECTIVES: To compare aortic valve replacement (AVR) using a minimally invasive approach through a transverse sternotomy with the established approach of median sternotomy. DESIGN: Retrospective, case-control study. PATIENTS: Fourteen high risk patients (median age 78, Parsonnet score of 18%) who underwent AVR performed through a minimally invasive transverse sternotomy were compared with a historical group of patients matched for age, sex, and Parsonnet score who underwent AVR performed through a median sternotomy by the same surgeon. OUTCOME MEASURES: Cross clamp time, total bypass time, intensive care stay, postoperative in-hospital stay, morbidity, and mortality. RESULTS: There were two deaths in the minimally invasive group and none in the control group (NS). The cross clamp and total bypass times were longer in the minimally invasive group (67 and 92 minutes v 46 and 66 minutes, p < 0.001). There was a higher incidence of re-exploration for bleeding (14% v 0%) and paravalvar leaks (21% v 0%) in the minimally invasive group but these differences were not significant. The minimally invasive group had a longer postoperative in-hospital stay (p = 0.025). The incidence of mortality or major morbidity was 43% (six of 14) in the minimally invasive group and 7% (one of 14) in the matched pairs (p = 0.013). CONCLUSIONS: AVR can be performed through a transverse sternotomy but the operation takes longer and there is an unacceptably high incidence of morbidity and mortality. (+info)

Role of glutaraldehyde in calcification of porcine aortic valve fibroblasts. (6/2271)

Glutaraldehyde-treated porcine aortic valve xenografts frequently fail due to calcification. Calcification in the prostheses begins intracellularly. In a previous study, various types of cell injury to canine valvular fibroblasts, including glutaraldehyde treatment, led to calcification. An influx of extracellular Ca2+ into the phosphate-rich cytosol was theorized to be the mechanism of calcification. To test the Ca2+ influx theory, cytosolic Ca2+ and Pi concentrations were assessed in glutaraldehyde-treated porcine aortic valve fibroblasts, and their relationship to a subsequent calcification was studied. Glutaraldehyde caused an immediate and sustained massive cytosolic Ca2+ increase that was dose dependent and a several-fold increase in Pi. Calcification of cells followed within a week. The earliest calcification was observed in blebs formed on glutaraldehyde-treated cells. Live control cells or cells fixed with glutaraldehyde in Ca2+-free solution did not calcify under the same conditions. Concomitant increases in Ca2+ and Pi in glutaraldehyde-treated cells appear to underlie the mechanism of calcification, and the presence of extracellular Ca2+ during glutaraldehyde fixation promotes calcification. (+info)

Perivalvular abscesses associated with endocarditis; clinical features and prognostic factors of overall survival in a series of 233 cases. Perivalvular Abscesses French Multicentre Study. (7/2271)

AIMS: The purposes of this study were to determine the clinical features and to identify prognostic factors of abscesses associated with infective endocarditis. METHODS AND RESULTS: During a 5-year period from January 1989, 233 patients with perivalvular abscesses associated with infective endocarditis were enrolled in a retrospective multicentre study. Of the patients, 213 received medical surgical therapy and 20 medical therapy alone. No causative microorganism could be identified in 31% of cases. Sensitivity for the detection of abscesses was 36 and 80%, respectively using transthoracic and transoesophageal echocardiography. Surgical treatment consisted of primary suture of the abscess (38%), insertion of a felt aortic or mitral ring using Teflon or pericardium (42%), or debridment of the abscess cavity (20%). The 1 month operative mortality was 16%. Actuarial rates for overall survival at 3 and 27 months in operated patients were 75 +/- 10% and 59 +/- 11%, respectively. Increasing patient age, staphylococcal infection, and fistulization of the abscess were found to be independent risk factors in both 1 month and overall operative mortality. Renal failure was a risk factor predictive of operative mortality at 1 month, whereas uncontrolled infection and circumferential abscess were regarded as risk factors predictive of overall operative mortality. CONCLUSION: The data determined prognostic factors of abscesses associated with infective endocarditis. (+info)

Syphilitic aortic regurgitation. An appraisal of surgical treatment. (8/2271)

During the 10 years from 1964 to 1973, fifteen patients with severe syphilitic aortic regurgitation were treated surgically at the National Heart Hospital. In thirteen the valve was replaced and in two it was repaired. In addition four had replacement of an aneurysmal ascending aorta with a Dacron graft and seven some form of plastic repair to the coronary ostia. Three patients died within 1 month of surgery and a further six during the follow-up period which varied from 1 to 55 months (mean 25-5). The six survivors have been followed-up for an average of 33 months. Factors contributing to this high mortality were analysed and it was found that the mean duration of effort dyspnoea was 22 months in the survivors compared with 48 months in those who had died. Similarly the average duration of nocturnal dyspnoea was 4 months in the survivors compared with a mean of 8 months in those who had died. Only six out of the fifteen patients had angina; this was present in two of the survivors and in four of the fatalities. The pulse pressure, heart size, and haemodynamic findings were similar in the two groups. The prognostic value of an elevated erythocyte sedimentation rate was also examined. It was concluded that preoperative investigations should include aortography, coronary arteriography, an assessment of left ventricular function, and whenever possible myocardial biopsy. These data were interpreted as suggesting that patients should be referred for surgery at an earlier stage in the disease--certainly before the onset of cardiac failure and--and that if this more aggresive attitude was adopted, as it has been in non-syphilitic cases of aortic valve disease, the present high mortality in this group would be reduced. (+info)

... mitral valve > aortic valve > tricuspid valve > pulmonary valve Grossly, vegetations form along lines of valve closure and are ... is a form of endocarditis in which small sterile vegetations are deposited on the valve leaflets. Formerly known as marantic ... The disease affects the valves with following predilection: ...

https://en.wikipedia.org/wiki/Nonbacterial_thrombotic_endocarditis

He carried out a number of Ross procedures, where the diseased aortic valve is replaced with the person's own pulmonary valve, ... ISBN 978-0-07-181158-3. Acton, Q. Ashton (2012). "1. Aortic Valve". Heart Valves-Advances in Research and Application: 2012 ... Three had severe aortic valve disease and one had rheumatic heart disease with multiple affected valves. All four had a poor ... where the diseased aortic valve is replaced with the person's own pulmonary valve, devising the arterial switch operation (ASO ...

https://en.wikipedia.org/wiki/Magdi_Yacoub

In an indication of his surgical skill, a 1968 case series of his aortic valve replacements demonstrated an exceptionally low ... Later, he performed the same operation on future LDS Church president Spencer W. Kimball, replacing his damaged aortic valve. ... Nelson, RM; Jenson, CB; Jones, KW (October 1968). "Aortic valve replacement". The Annals of Thoracic Surgery. 6 (4): 343-50. ... In 1960, he performed one of the first-ever repairs of tricuspid valve regurgitation. His patient was a Latter-day Saint stake ...

https://en.wikipedia.org/wiki/Russell_M._Nelson

... aortic valve stenosis; rhinosinusitis; and dozens of others. In 2014, Stefansson is reported to have astonished David Altshuler ... "Genome-wide analysis yields new loci associating with aortic valve stenosis," Nature Communications, Volume 9, Article number ... and aortic and intracranial aneurysm. Among their noteworthy recent discoveries is a rare variant in the ASGR1 gene that ... abdominal aortic aneurysm and intracranial aneurysm," Nature Genetics (subscription required), Volume 40, pp 217-224, 6 January ...

https://en.wikipedia.org/wiki/Kári_Stefánsson

It damaged his heart, in particular the valves, for which he has thus far had two aortic valve replacement surgeries, but this ... In 1993, Rudd underwent a cardiac valve transplant operation (Ross procedure), receiving a cadaveric aortic valve replacement ... Rudd, Kevin (20 July 2011). "Aortic valve replacement". Australian Minister for Foreign Affairs. Packham, Ben; Kelly, Joe (20 ... In 2011, Rudd underwent a second cardiac valve transplant operation, making a full recovery from the surgery. Rudd, Kevin (2017 ...

https://en.wikipedia.org/wiki/Kevin_Rudd

SLC6A4 Aortic aneurysm, familial thoracic 4; 132900; MYH11 Aortic aneurysm, familial thoracic 6; 611788; ACTA2 Aortic valve ... MAPT Supravalvar aortic stenosis; 185500; ELN Surfactant metabolism dysfunction, pulmonary, 1; 265120; SFTPB Surfactant ...

https://en.wikipedia.org/wiki/List_of_OMIM_disorder_codes

She worked on the development of a replacement aortic valve which was used in humans during her time at Medtronic. In 2004, ... "Transcatheter Aortic Heart Valve". www.medtronic.com. Retrieved 15 February 2020. "Blending medicine and mechanical engineering ... "Engineers design bionic "heart" for testing prosthetic valves, other cardiac devices". MIT News. Retrieved 15 February 2020. ...

https://en.wikipedia.org/wiki/Ellen_Roche

Skeletal deformities and aortic valve disease may occur. These patients may live into adulthood. MPS I is inherited in an ... Aortic valve disease may occur. Upper and lower respiratory-tract infections can be frequent. Most children develop limited ...

https://en.wikipedia.org/wiki/Mucopolysaccharidosis_type_I

... especially in the aortic valve. Lambl's excrescences: Small fibrin deposits on the aortic valve. Lambl's excrescences: Foot of ...

https://en.wikipedia.org/wiki/Vilém_Dušan_Lambl

... and aortic valve stenosis (AS)." Reyes's physician, Dr. Francisco Lukban, however, later declared him stable. Associate Justice ...

https://en.wikipedia.org/wiki/GSIS–Meralco_bribery_case

"Transcatheter Aortic Valve Replacement (TAVR)." Mayo Clinic. 2020. "What Is A Migraine." EveryDay Health. 2020. "Medical ...

https://en.wikipedia.org/wiki/Medical_animation

Jordin's aortic valve is failing. He is having surgery June 28 to replace..., by Mary Kay Kare, on Twitter; published June 21, ... In June 2017, Kare's wife Mary Kay announced via Twitter that his aortic valve was failing and needed to be replaced. On July ...

https://en.wikipedia.org/wiki/Jordin_Kare

Aortic valve disease may occur. Airway obstruction is frequent, usually secondary to abnormal cervical vertebrae. Upper and ...

https://en.wikipedia.org/wiki/Hurler_syndrome

"Simulation of Aortic Valve Tech Brief". ADINA R & D, Official Webpage. "ADINA Multiphysics, Official Webpage". "ADINA CAD/CAE ...

https://en.wikipedia.org/wiki/ADINA

Garcia, D (2000). "Assessment of Aortic Valve Stenosis Severity". Circulation. 101 (7): 765-771. doi:10.1161/01.cir.101.7.765. ...

https://en.wikipedia.org/wiki/Donald_S._Miller

He has said that his interest had lain "particularly with the valves-especially the aortic valve-but, in general, anything that ... it involves replacing a patient's damaged aortic valve with his or her own pulmonary valve. Ross believed that, "with care, the ... Archived 15 April 2012 at the Wayback Machine Ross D.N. (1967). "Replacement of aortic and mitral valves with a pulmonary ... In 1962 Ross introduced the use of homografts to replace diseased aortic valves. He used a technique of subcoronary ...

https://en.wikipedia.org/wiki/Donald_Ross_(surgeon)

Endocarditis typically involves the aortic valve. The native aortic valve is the most frequent site of vegetation for ... The patient was treated with Cenftriaxone which caused the aortic valve to swell up so Vancomycin and Carbapenam was used next ... X-Ray Imaging of the chest is performed to determine lung inflammation and aortic regurgitation. Electrocardiogram is used to ... Also, for endocarditis, a valve replacement would be performed to avoid cardiogenic shock. For meningitis, intravenous ...

https://en.wikipedia.org/wiki/Austrian_syndrome

April 2009). "Winged scapula after aortic valve replacement". The Annals of Thoracic Surgery. 87 (4): 1277-9. doi:10.1016/j. ...

https://en.wikipedia.org/wiki/Winged_scapula

Coronary artery bypass Mitral valve repair Mitral valve replacement Aortic valve replacement Atrial septal defects Hybrid ... Patients referred for this procedure may have Coronary Artery Disease (CAD); aortic, mitral or tricuspid valve diseases; or ... 92% of patients were free from angina and none of the participants experienced any aortic complications, repeat ... including single or multiple heart valve procedures, bypass surgery, and congenital heart repairs. Eliminating the need for ...

https://en.wikipedia.org/wiki/Minimally_invasive_cardiac_surgery

Marwan, Mohamed; Achenbach, Stephan (February 2016). "Role of Cardiac CT Before Transcatheter Aortic Valve Implantation (TAVI ... "Complementary role of cardiac CT in the assessment of aortic valve replacement dysfunction". Open Heart. 3 (2): e000494. doi: ... "Innovative Mitral Valve Treatment with 3D Visualization at Henry Ford". Materialise. Archived from the original on 2017-12-01. ... For more complex anatomies and procedures, such as heart valve interventions, a true 3D reconstruction or a 3D print is created ...

https://en.wikipedia.org/wiki/CAT_scan

Tinderholt has a titanium aortic heart valve. In 2020, he was hospitalized for COVID-19. Biography portal Iowa portal Virginia ...

https://en.wikipedia.org/wiki/Tony_Tinderholt

Liu suffered from a narrowed aortic valve. Her husband told the media that she had learnt about her condition purely by chance ... Liu could have opted for an aortic valve replacement, but it would have required long-term medication after the surgery to ... On 7 February 2020, while undergoing a heart valve repair surgery at Taipei Veterans General Hospital, Liu had an unexpected ...

https://en.wikipedia.org/wiki/Serena_Liu

In the case of aortic valve involvement, excision of the tumor is often valve-sparing, meaning that replacement of the valve ... Takada A, Saito K, Ro A, Tokudome S, Murai T (2000). "Papillary fibroelastoma of the aortic valve: a sudden death case of ... Westhof FB, Chryssagis K, Liangos A, Batz G, Diegeler A (2007). "Aortic valve leaflet reconstruction after excision of a ... Kumbala D, Sharp T, Kamalesh M (2008). ""Perilous pearl"--papillary fibroelastoma of aortic valve: a case report and literature ...

https://en.wikipedia.org/wiki/Papillary_fibroelastoma

It's an unusual physical finding typically seen in patients with aortic valve diseases if the aortic valve does not normally ... It is seen in aortic valve stenosis. Pulsus paradoxus: a condition in which some heartbeats cannot be detected at the radial ... It is caused by a stiffened aortic valve that makes it progressively harder to open, thus requiring increased generation of ... such as aortic outflow tract obstruction, mitral stenosis, aortic arch syndrome) etc. A bounding pulse signifies high pulse ...

https://en.wikipedia.org/wiki/Pulse

Rashid, R. M.; Salah, W.; Parada, J. P. (1 February 2007). "'Streptococcus milleri' aortic valve endocarditis and hepatic ...

https://en.wikipedia.org/wiki/Streptococcus_anginosus_group

2010 May;89(5):1443-7. Transcatheter aortic-valve implantation for aortic stenosis in patients who cannot undergo surgery;N ... "SOURCE" of enthusiasm for transcatheter aortic valve implantation; Circulation. 2010 Jul 6;122(1):8-10. Epub 2010 Jun 21. " ... for performing keyhole valve and aortic surgery; and has been involved from the beginning on the research of percutaneous ... simplified a method for preserving a patient's aortic valve and reimplanting it at the time of surgery so that patients ( ...

https://en.wikipedia.org/wiki/Lars_Georg_Svensson

Fox then underwent successful aortic valve replacement surgery. In the 2013 NFL season, quarterback Peyton Manning threw for ... Fox was replaced by Broncos defensive coordinator Jack Del Rio as Fox underwent an aortic valve replacement. Fox, while playing ... where doctors told him not to put off valve replacement surgery any longer; he had done so earlier in the year to continue ...

https://en.wikipedia.org/wiki/John_Fox_(American_football)

First, an aortic valve replacement would be required. Second, an important coronary artery with a blockage should be treated ... Medical examinations discovered serious aortic calcification and some coronary artery disease. Meanwhile, Kimball had ... theorized to have been caused by small nylon fibers shed by his artificial heart valve, which briefly incapacitated him but had ...

https://en.wikipedia.org/wiki/Spencer_W._Kimball

The study she led discovered that lipoproteina levels and common genetic variants in LPA lead to aortic valve calcification and ... "Genetic Variation Doubles Risk of Aortic Valve Calcification". hopkinsmedicine.org. February 7, 2013. Retrieved November 23, ... of Full professor and she co-led the first large-scale genome-wide association study to uncover a genetic link to aortic valve ... aortic stenosis. The following year, she studied the presence and extent of plaque in the arteries of over 1,000 males to show ...

https://en.wikipedia.org/wiki/Wendy_S._Post

Akiyama, Kazuya; Taniyasu, Naohito; Hirota, Jun; Iba, Yutaka; Maisawa, Kazuma (2001). "Recurrent Aortic Valve Endocarditis ... Zakir, R. M.; Al-Dehneh, A.; Dabu, L.; Kapila, R.; Saric, M. (7 October 2004). "Mitral Bioprosthetic Valve Endocarditis Caused ...

https://en.wikipedia.org/wiki/Gemella_morbillorum

"Detection of Borrelia bissettii in cardiac valve tissue of a patient with endocarditis and aortic valve stenosis in the Czech ...

https://en.wikipedia.org/wiki/Lyme_disease

Talk:Aortic arch. *Talk:Aortic body. *Talk:Aortic valve. *Talk:Aorticopulmonary septum ...

https://en.wikipedia.org/wiki/Category:Mid-importance_Anatomy_articles

... aortic valve does not fully open during development. The aortic valve is a one way valve that is located between the left ... resulting in systemic circulation failure in babies born with aortic valve stenosis. Fetal aortic valve stenosis can be ... Then a 0.014 inch guide wire is passed across the stenosis aortic valve, where a balloon is inflated to stretch the aortic ... Since the valve does not open properly in aortic stenosis, there is a decrease in the forward movement of blood into the aorta ...

https://en.wikipedia.org/wiki/Fetal_aortic_stenosis

... the atrioventricular valve, the cavum venosum, cavum arteriosum, the cavum pulmonale, the muscular ridge, the ventricular ridge ... pulmonary veins, and paired aortic arches.[69]. Some squamate species (e.g., pythons and monitor lizards) have three-chambered ...

https://en.m.wikipedia.org/wiki/Reptile

Aortic insufficiency is a chronic heart condition that occurs when the aortic valve's initial large stroke volume is released ... The capillaries of the human circulatory system, where it indicates aortic regurgitation ...

https://en.wikipedia.org/wiki/Venturi_effect

pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus) → (aorta and ... valve of coronary sinus) → tricuspid valve → right ventricle (infundibulum, moderator band/septomarginal trabecula, crista ... venae cavae, coronary sinus) → right atrium (atrial appendage, fossa ovalis, limbus of fossa ovalis, crista terminalis, valve ...

https://en.wikipedia.org/wiki/Interatrial_sulcus

"Increased dietary intake of vitamin A promotes aortic valve calcification in vivo". Arteriosclerosis, Thrombosis, and Vascular ...

https://en.m.wikipedia.org/wiki/Hypervitaminosis_A

The epicardial pacemaker leads were placed after the patient collapsed during aortic valve surgery. In the first half of the ... These studies demonstrated the restoration of heart rate, cardiac output and mean aortic pressures in animal subjects with ... through the valve of the heart, until positioned in the chamber. The procedure is facilitated by fluoroscopy which enables the ... not recommended as it provides additional obstruction to blood flow and heart valve function) or remove the current leads and ...

https://en.m.wikipedia.org/wiki/Artificial_cardiac_pacemaker

valves. Endocarditis. *infective endocarditis *Subacute bacterial endocarditis. *non-infective endocarditis *Libman-Sacks ...

https://en.wikipedia.org/wiki/Reflex_tachycardia

... is also used as an adjunctive procedure during vascular bypass to visualize valves within venous conduits. The ... Aortic aneurysm / dissection:. *Endovascular aneurysm repair. *Open aortic surgery. Other. *Cardiopulmonary bypass ...

https://en.wikipedia.org/wiki/Angioscopy

"Papillary Fibroelastoma of the Aortic Valve as a Cause of Transient Ischemic Attack". Department of Cardiovascular Surgery, ... ekstrakranial seperti vertebral artery origin stenosis atau proksimal seperti thick plaques in the aortic arch yang selama ini ...

https://id.wikipedia.org/wiki/Stroke

The coronary arteries start in the right and left aortic sinus and provide blood to the heart muscle in a similar fashion to ... To compensate for the large "dead" space, the common ostrich trachea lacks valves to allow faster inspiratory air flow.[65] In ... It is located in the endocardium of the atrial surface of the right atrioventricular valve. It is not covered by connective ... The right atrioventricular valve is fixed to the interventricular septum, by a thick muscular stock, which prevents back-flow ...

https://en.m.wikipedia.org/wiki/Common_ostrich

The development of prosthetic mitral and aortic valves, which have prolonged and enhanced the lives of millions of people with ...

https://en.wikipedia.org/wiki/Lasker_Foundation

... and aortic valve replacement, usually with a synthetic valve.[8] Incidence[edit]. Quadricuspid aortic valves are very rare ... Quadricuspid aortic valve. A quadricuspid aortic valve (QAV) is a rare congenital heart defect characterized by the presence of ... A short-axis ultrasound of the aortic valve allows for the best view of the aortic valve, and gives a clear indication of the ... a b Tutarel, O. (2004). The quadricuspid aortic valve: a comprehensive review. The Journal of Heart Valve Disease, 13(4), 534- ...

https://en.wikipedia.org/wiki/Quadricuspid_aortic_valve

Semilunar valves[edit]. Main articles: Aortic valve and Pulmonary valve. The aortic and pulmonary valves are located at the ... The mitral valve and the aortic valve are in the left heart; the tricuspid valve and the pulmonary valve are in the right heart ... Equations for the aortic valve in this case: ρ. (. ∂. u. ∂. t. +. u. ∂. u. ∂. x. ). +. ∂. p. ∂. x. =. 0. {\displaystyle {\rho ... tricuspid valve stenosis, pulmonary valve stenosis and aortic valve stenosis. Stenosis of the mitral valve is a common ...

https://en.wikipedia.org/wiki/Heart_valve

Valve replacement. *Aortic valve replacement *Ross procedure. *Percutaneous aortic valve replacement. *Mitral valve replacement ...

https://ml.wikipedia.org/wiki/ഫലകം:Cardiac_procedures

In birds, the main arteries taking blood away from the heart originate from the right aortic arch (or pharyngeal arch), unlike ... The atrium and ventricles of each side are separated by atrioventricular valves which prevent back flow from one chamber to the ... in the mammals where the left aortic arch forms this part of the aorta.[62] The postcava receives blood from the limbs via the ...

https://en.m.wikipedia.org/wiki/Bird

by controlling heaters, pumps and valves.[74]. *The centrifugal governor of a steam engine, as designed by James Watt in 1788, ... High pressure receptors called baroreceptors in the walls of the aortic arch and carotid sinus (at the beginning of the ... reduces the throttle valve in response to increases in the engine speed, or opens the valve if the speed falls below the pre- ... in the carotid artery and aortic arch. A change in the partial pressure of carbon dioxide is detected as altered pH in the ...

https://en.wikipedia.org/wiki/Human_homeostasis

... mainly calcification and regurgitation of the aortic and mitral valves, may occur, and in severe and progressive cases valve ... The accumulating homogentisic acid causes damage to cartilage (ochronosis, leading to osteoarthritis) and heart valves as well ...

https://en.wikipedia.org/wiki/Alkaptonuria

valves. Endocarditis. *infective endocarditis *Subacute bacterial endocarditis. *non-infective endocarditis *Libman-Sacks ...

https://si.wikipedia.org/wiki/හෘද_රෝග

Nonvalvular AF (NVAF) - the absence of rheumatic mitral valve disease, a prosthetic heart valve, or mitral valve repair ... mitral valve stenosis (e.g., due to rheumatic heart disease or mitral valve prolapse), mitral regurgitation, left atrial ... atrial fibrillation in the presence of a mechanical heart valve and/or moderate-severe mitral valve stenosis).[69] The ... There are also SNPs associated with loss of function of the Pitx2c gene (involved in cellular development of pulmonary valves ...

https://en.wikipedia.org/wiki/Atrial_fibrillation

In humans, hypoxia is detected by the peripheral chemoreceptors in the carotid body and aortic body, with the carotid body ... Diving cylinder valve. *Diving helmet. *Diving regulator *Single-hose regulator. *Twin-hose regulator ...

https://en.wikipedia.org/wiki/Hypoxia_

Detection of Borrelia bissettii in cardiac valve tissue of a patient with endocarditis and aortic valve stenosis in the Czech ...

https://hy.wikipedia.org/wiki/Լայմի_հիվանդություն

... the lumen has three small pockets between the cusps of the aortic valve and the wall of the aorta, which are called the aortic ... Aortic archEdit. Main article: Aortic arch. The aortic arch loops over the left pulmonary artery and the bifurcation of the ... The ascending aorta begins at the opening of the aortic valve in the left ventricle of the heart. It runs through a common ... Between the aortic arch and the pulmonary trunk is a network of autonomic nerve fibers, the cardiac plexus or aortic plexus. ...

https://en.m.wikipedia.org/wiki/Aorta

Where it is crossed on the front by the aortic arch in the superior mediastinum ...

https://en.wikipedia.org/wiki/Upper_esophageal_sphincter

pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus) → (aorta and ... The mitral valve (/ˈmaɪtrəl/), also known as the bicuspid valve or left atrioventricular valve, is a valve with two flaps in ... The mitral valve and the tricuspid valve are known collectively as the atrioventricular valves because they lie between the ... or the mitral valve may be narrowed (mitral stenosis). Rheumatic heart disease often affects the mitral valve; the valve may ...

https://en.wikipedia.org/wiki/Mitral

https://en.m.wikipedia.org/wiki/X-ray_computed_tomography

The notch in the curve is associated with closing of the aortic valve. ... The most important arterial baroreceptors are located in the left and right carotid sinuses and in the aortic arch.[70] ... For those with heart valve regurgitation, a change in its severity may be associated with a change in diastolic pressure. In a ... Gravity affects blood pressure via hydrostatic forces (e.g., during standing), and valves in veins, breathing, and pumping from ...

https://en.wikipedia.org/wiki/Arterial_blood_pressure

Between each commissure of the aortic valve and opposite the cusps of the aortic valve, three small dilatations called the ... they arise near the commencement of the aorta from the aortic sinuses which are opposite the aortic valve. ... The aortic root is the portion of the aorta beginning at the aortic annulus and extending to the sinotubular junction. It is ... Van Mieghem, Nicolas M.; Van Der Boon, Robert M.A. (2013). "Porcelain Aorta and Severe Aortic Stenosis: Is Transcatheter Aortic ...

https://en.m.wikipedia.org/wiki/Ascending_aorta

pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus) → (aorta and ... receives oxygenated blood from the left atrium via the mitral valve and pumps it through the aorta via the aortic valve, into ... An elevated pressure difference between the aortic pressure and the left ventricular pressure may be indicative of aortic ... the aortic valve opens, and blood is pumped to the body. Elevated left ventricular end-diastolic pressure has been described as ...

https://en.wikipedia.org/wiki/Ventricle_(heart)

Aortic valve repair[edit]. Main article: Aortic valve repair. Aortic valve repair or aortic valve reconstruction describes the ... Aortic valve replacement[edit]. Main article: Aortic valve replacement. Aortic valve replacement is a surgical procedure in ... The aortic valve can be affected by a range of diseases and require aortic valve replacement. The valve can become either leaky ... The aortic valve is a valve in the human heart between the left ventricle and the aorta. It is one of the two semilunar valves ...

https://en.wikipedia.org/wiki/Aortic_valve

https://en.wikipedia.org/wiki/Quadricuspid_aortic_valve

aortic valve valve in the human heart between the left ventricle and the aorta. ... Media in category "Aortic valve". The following 13 files are in this category, out of 13 total. ... C.J.B. Williams, 1840; aortic valves Wellcome L0006914.jpg 1,666 × 1,070; 734 KB. ... C.J.B. Williams; aortic valves Wellcome L0006912.jpg 1,274 × 1,552; 348 KB. ...

https://commons.wikimedia.org/wiki/Category:Aortic_valve

... the aortic valve works like a one - way gate. When the heart pumps, the aortic valve opens to let oxygen - rich blood flow from ... Blood then flows through the aorta to the rest of the body.Aortic valve stenosis ... What is aortic valve stenosis?The heart has four chambers. In the lower left chamber (left ventricle), ... Aortic Valve Stenosis - Topic Overview. Articles OnAortic Valve Stenosis. Aortic Valve Stenosis Aortic Valve Stenosis * Topic ...

https://www.webmd.com/heart-disease/tc/aortic-valve-stenosis-overview

... dissects down the aorta to the aortic valve and removes the aneurysmal aortic wall; he then re-suspends the native valve within ... "If you had surgery for transposition as a baby and now youre a 22-year-old with an aortic root aneurysm with aortic valve ... in which he replaces the aortic root and then reimplants the patients existing valve, reducing the need for valve replacement ... In valve sparing aortic root replacement, Vricella excises the aorta at the sinotubular junction, ...

https://www.hopkinsmedicine.org/news/articles/sparing-the-aortic-valve

Leonardo da Vinci recognized the superior engineering advantages of the normal trileaflet valve. ... Sir William Osler was one of the first to recognize the bicuspid aortic valve as a common congenital anomaly of the heart. ... The aortic root and valve: Anatomy and congenital anomalies. Emery RW, Arom KV. The Aortic Valve. Philadelphia: Hanley & Belfus ... The significance of aortic valve calcification in patients with bicuspid aortic valve disease. Int J Cardiovasc Imaging. 2015 ...

https://emedicine.medscape.com/article/893523-medication

... the aortic valve, one of the four valves in the heart. Description The most common valvular problem in old age is aortic valve ... Definition Aortic Valve Disease entails damage to, and dysfunction of, ... Aortic Valve Disease entails damage to, and dysfunction of, the aortic valve, one of the four valves in the heart. ... The aortic valve is one of four valves that control the flow of blood into and out of the heart. In particular, the aortic ...

https://www.healthcentral.com/encyclopedia/aortic-valve-disease

Aortic valve stenosis is a common and serious heart problem when the valve doesnt open fully. Learn about what causes it and ... Your aortic valve plays a key role in getting oxygen-rich blood to your body. ... "Aortic valve stenosis: Causes," "Aortic valve stenosis: Symptoms," "Aortic valve stenosis: Complications," "Aortic valve ... Causes of Aortic Valve Stenosis. Several conditions can cause your aortic valve to thicken. Among them are:. Calcium buildup: ...

https://www.webmd.com/heart-disease/aortic-valve-stenosis

The first-in-human transcatheter aortic valve implantation (TAVI) was successfully performed in 2002. In excess of 50,000 TAVI ... Transcatheter aortic valve implantation for severe aortic regurgitation in a stentless bioprosthetic valve with the core valve ... Conradi L, Seiffert M, Treede H et al (2011) Transcatheter aortic valve implantation versus surgical aortic valve replacement: ... Litzler PY, Cribier A, Zajarias A et al (2008) Surgical aortic valve replacement after percutaneous aortic valve implantation: ...

https://link.springer.com/chapter/10.1007/978-1-4614-6144-9_10

What is the aortic valve?. The aortic valve is a one-way valve comprised of three leaflets that conducts blood flow from the ... What is aortic stenosis?. Aortic stenosis is a condition whereby the leaflets of the aortic valve become abnormally rigid such ... Diseases of the aortic valve are functionally classified into those that cause the valve to leak, known as aortic regurgitation ... How is the aortic valve replaced?. Aortic valve replacements require the use of cardiopulmonary bypass, otherwise known as ?the ...

https://www.hopkinsmedicine.org/heart_vascular_institute/conditions_treatments/treatments/minimally_invasive_aortic_valve_replacement.html

The valve replacement system includes up to five components: (1) a prosthetic valve device, (2) a valve introducer device, (3) ... The system provides for endovascular removal of a malfunctioning valve and subsequent replacement with a permanent prosthetic ... are provided for endovascular replacement of a heart valve in a host. ... The subject invention relates to a valve replacement system together with methods of preparation and use, ...

http://www.google.co.uk/patents/US20040236418

The aortic valve separates the heart and aorta. The aortic valve opens so blood can flow out. It then closes to keep blood ... You may need aortic valve surgery to replace the aortic valve in your heart if: *Your aortic valve does not close all the way, ... When the aortic valve is too damaged for repair, a new valve is put in place. Your surgeon will remove your aortic valve and ... The aortic valve separates the heart and aorta. The aortic valve opens so blood can flow out. It then closes to keep blood from ...

https://medlineplus.gov/ency/article/007407.htm

Hello I have a son who was born with a bicuspid aortic valve with moderate aortic stenosis which he got from his father. I have ... Hello I have a son who was born with a bicuspid aortic valve with moderate aortic stenosis which he got from his father. I have ... BAV can be associated with aortic valve stenosis, insufficiency, and prolapse, as well as aortic root dilation. In regards to ... Aortic valve stenosis intervention, which can accompany BAV, is a different story. As you may be aware, there are some centers ...

http://www.medhelp.org/posts/Pediatric-Heart/Bicuspid-aortic-valve/show/969796

Different valves last different periods of time. Mechanical valves last much longer than tissue valves, but require one to be ... I had aortic valve replacement on 5 Feb 99, with a 5.2 cm aneurysm removed as well. All went very well, thank god, you will be ... I had an aortic valve replacement last August a successful cardioversion in December and was taken off coumadin (its a tissue ... My daughter is just recently married and is 28 years old with the conjenital heart defect of an aortic tricusp heart valve. At ...

http://www.medhelp.org/posts/Heart-Disease/AORTIC-VALVE-REPLACEMENT/show/870600

The role of transcatheter aortic valve implantation (TAVI; also known as transcatheter aortic valve replacement or TAVR) as an ... has been the mainstay of treatment of symptomatic severe aortic stenosis (AS). ... Indications for aortic valve replacement, surgical aortic valve replacement, estimating the risk of aortic valve surgery, ... The role of transcatheter aortic valve implantation (TAVI; also known as transcatheter aortic valve replacement or TAVR) as an ...

https://www.uptodate.com/contents/transcatheter-aortic-valve-implantation-periprocedural-management

... the valve area is 3.0 to 4.0 cm2. As aortic stenosis develops, minimal valve gradient is present until the orifice area becomes ... The pressure gradient across a stenotic valve is direc ... Gorlin equation for aortic valve area. *Aortic valve resistance ... In individuals with normal aortic valves, the valve area is 3.0 to 4.0 cm2. As aortic stenosis develops, minimal valve gradient ... Doppler derived aortic valve resistance in aortic stenosis: its hemodynamic validation. J Heart Valve Dis 1994; 3:283. ...

http://www.uptodate.com/contents/aortic-valve-area-in-aortic-stenosis

... The aortic valve controls blood flow from the heart to the rest of the body. In aortic ... such as bicuspid aortic valves (a valve with two "flaps" instead of three) and rheumatic valvular disease, aortic stenosis or ... In aortic regurgitation, the valve opening does not close completely, causing blood to leak backward into the heart. As a ... Aortic stenosis and regurgitation may occur with age, often in those older than 70. However, in patients with other heart ...

https://www.emoryhealthcare.org/heart-vascular/aortic-valve-stenosis.html

Aortic valve brought two famous people have been in the news recently. One just had aortic valve surgery and the other who will ... There are two types of replacement valves for the aortic valve - mechanical or biological. The advantage of a mechanical valve ... The most common cause of aortic valve disease requiring surgery is called "senile aortic calcification." The valve has worn out ... The aortic valve is a tricuspid valve. It helps control the outflow of blood from the left ventricle to the body. It opens to ...

https://www.emaxhealth.com/1024/80/29680/aortic-valve-surgery.html

... aortic valve area ≤1.0 cm2 or aortic valve area index ≤0.6cm2/m2, a mean aortic valve gradient of ≥40 mm Hg, or a peak aortic- ... mixed aortic valve disease (aortic stenosis and aortic regurgitation with predominant aortic regurgitation [3-4+]) ... Heart Valves - Transcatheter Transcatheter Aortic Valve Replacement (TAVR) Platform Indications, Safety, and Warnings ... DO NOT implant in the aortic or mitral position. Preclinical bench testing of the Melody valve suggests that valve function and ...

https://www.medtronic.com/se-sv/healthcare-professionals/products/cardiovascular/heart-valves-transcatheter/transcatheter-aortic-valve-replacement-platform/indications-safety-warnings.html

Aortic regurgitation describes the leakage of the aortic valve each time the left ventricle relaxes. Learn about ongoing care ... What is aortic valve regurgitation?. Aortic regurgitation is leakage of the aortic valve each time the left ventricle relaxes. ... What causes aortic regurgitation?. Common causes of severe aortic regurgitation are weakening of the valve tissue due to aging ... A leaking (or regurgitant) aortic valve allows blood to flow in two directions. Oxygen-rich blood either flows out through the ...

https://www.heart.org/HEARTORG/Conditions/More/HeartValveProblemsandDisease/Problem-Aortic-Valve-Regurgitation_UCM_450611_Article.jsp

... valve) stenosis symptoms, diagnosis, treatment and adult management, provided by Cincinnati Childrens. ... A more traditional aortic valve replacement procedure involves the implantation of a mechanical prosthesis in the aortic valve ... The enlarged valve annulus can then accept a more normal size prosthetic aortic valve or pulmonary valve autotransplant. ... In the Ross Procedure, the patients own pulmonary valve is transplanted to the aortic valve position and the pulmonary valve ...

https://www.cincinnatichildrens.org/health/a/avs

A device for replacement of a bioprosthetic valve having an annulus (,b,104,/b,) and one or more leaflets (,b,105,/b,), the ... 1, a sagittal section of the aortic root, a valve delivery instrument 100 may deliver a valve 101 having a valve frame 102 ... Many patients who suffer from severe aortic valve disease have undergone surgery to replace their original aortic valve in ... of a bioprosthetic aortic valve to the annulus of a previously installed bioprosthetic aortic valve may comprise a valve ...

https://www.freepatentsonline.com/y2010/0049312.html

Aortic valve insufficiency results from leakage and backflow of blood that is ejected from the left ventricle (LV) into the ... Anatomy of the aortic valve. The aortic valve is composed of 3 thin leaflets (ie, cusps) that project from the wall of the ... Other than aortic valve insufficiency associated with congenital heart disease, the incidence of aortic valve insufficiency is ... encoded search term (Pediatric Aortic Valve Insufficiency) and Pediatric Aortic Valve Insufficiency What to Read Next on ...

https://emedicine.medscape.com/article/893646-overview

This minimally invasive procedure to replace a narrowed aortic valve may be an option for those who cant have open-heart ... Transcatheter aortic valve replacement (TAVR). Transcatheter aortic valve replacement (TAVR). Transcatheter aortic valve ... Aortic valve stenosis - or aortic stenosis - occurs when the hearts aortic valve thickens and calcifies, preventing the valve ... aortic valve stenosis). Transcatheter aortic valve replacement is sometimes called transcatheter aortic valve implantation ( ...

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... bicuspid and tricuspid aortic valves by decade in adults having aortic valve replacement for isolated aortic stenosis. ... Changes in size of ascending aorta and aortic valve function with time in patients with congenitally bicuspid aortic valves. Am ... The association of bicuspid aortic valve with aortic aneurysm and dissection suggests the possibility that a bicuspid valve, at ... Clearly, an effective therapy to prevent calcific aortic valve stenosis-focusing on patients with a bicuspid aortic valve-would ...

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Valve-Sparing Root Replacement in Patients With Bicuspid Versus Tricuspid Aortic Valves ... Systematic Echocardiographic Assessment of Aortic Regurgitation-What Should the Surgeon Know for Aortic Valve Repair? ... Aortic valve repair is complex, and techniques must be tailored to the pathology. With this in mind, the author summarizes his ... Biological or Mechanical Prostheses for Isolated Aortic Valve Replacement in Patients Aged 50-65 Years: The ANDALVALVE Study ...

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Your aortic valve. What is the aortic valve?. There are four valves in your heart including the mitral, tricuspid, aortic and ... Aortic valve disease occurs when the aortic valve does not work correctly. This can be caused by:. *Aortic valve stenosis: ... What causes aortic valve disease?. The aortic valve may be abnormal at birth (typically a bicuspid congenital aortic valve) or ... other congenital aortic valve diseases, aortic valve stenosis, and aortic valve regurgitation. ...

https://my.clevelandclinic.org/health/treatments/16745-aortic-valve-surgery

... trans-catheter aortic valve implantation or replacement (TAVI or TAVR) was performed for the first time in human by Alain ... Transcatheter aortic valve implantation vs. surgical aortic valve replacement for treatment of severe aortic stenosis: a meta- ... A new transcatheter aortic valve replacement system for predominant aortic regurgitation implantation of the j-valve and early ... Transcatheter versus surgical aortic valve replacement in patients with severe aortic valve stenosis: 1-year results from the ...

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Mitral valve disease, Aortic ulcer, Thoracic aortic aneurysm, Aortic dissection, Aortic valve disease, Coronary artery disease ... Transcatheter aortic valve replacement, ECMO, Aortic aneurysm, Aortic valve disease, Mitral valve disease, Coronary artery ... Aortic valve stenosis, Aortic aneurysm, Coronary artery disease, Heart disease, Mitral valve disease, Mitral valve prolapse, ... Minimally invasive procedures to treat aortic valve disease, including transcatheter aortic valve replacement (TAVR) and other ...

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Aortic insufficiency , also called aortic regurgitation , is when the valve is unable to close properly. (wikipedia.org)
Common causes of aortic regurgitation include vasodilation of the aorta, previous rheumatic fever , infection such as infective endocarditis , degeneration of the aortic valve, and Marfan's syndrome . (wikipedia.org)
Most frequently it is applied for the treatment of aortic regurgitation. (wikipedia.org)
A transthoracic echocardiogram (TTE) indicates if there is an aortic regurgitation, but a 3-D transesophageal echocardiogram can give a better view of the aortic valve. (wikipedia.org)
Congenital quadricuspid aortic valve associated with aortic insufficiency and mitral regurgitation. (wikipedia.org)
Quadricuspid aortic valve: a rare etiology of aortic regurgitation. (wikipedia.org)
If you had surgery for transposition as a baby and now you're a 22-year-old with an aortic root aneurysm with aortic valve regurgitation, you need someone who understands congenital heart disease, not an adult surgeon who just performs aortic surgery in a normally connected heart," says Vricella. (hopkinsmedicine.org)
Aortic valve regurgitation and the congenitally bicuspid aortic valve: a clinico-pathological correlation. (medscape.com)
On the other hand, if the valve does not close properly, it may cause aortic regurgitation because some of the blood being pumped out into the aorta regurgitates, or leaks backward, into the left ventricle with each beat. (healthcentral.com)
Aortic regurgitation is usually asymptomatic until middle age. (healthcentral.com)
Some causes of aortic regurgitation include congenitally bicuspid (only two cusps instead of three) valves, infective endocarditis, and high blood pressure. (healthcentral.com)
If symptoms are present or there is severe ventricular dysfunction with either stenosis or regurgitation, surgery to repair, or more likely replace, the defective valve often will be recommended. (healthcentral.com)
If there is also a leak, it is called aortic regurgitation. (medlineplus.gov)
Matsubara T, Yamazoe M, Tamura Y et al (1992) Balloon catheter with check valves for experimental relief of acute aortic regurgitation. (springer.com)
Diseases of the aortic valve are functionally classified into those that cause the valve to leak, known as aortic regurgitation or insufficiency, and those that narrow its opening, known as aortic stenosis. (hopkinsmedicine.org)
What is aortic regurgitation or insufficiency? (hopkinsmedicine.org)
Aortic regurgitation or insufficiency is a condition whereby the aortic valve permits blood ejected from the left ventricle to leak back into the left ventricle. (hopkinsmedicine.org)
Aortic regurgitation is most often caused by damage to the aortic valve from a recent infection (e.g., dental abscess), dilation of the aorta, and rheumatic heart disease. (hopkinsmedicine.org)
How are aortic stenosis and regurgitation treated? (hopkinsmedicine.org)
This is called aortic regurgitation. (medlineplus.gov)
It can also lead to leaking of blood back from the aorta into the left ventricle (aortic valve regurgitation), increasing the volume of blood that the heart has to pump with each beat. (mayoclinic.org)
In some cases, the aortic valve doesn't close tightly, causing blood to leak backward into the left ventricle (aortic valve regurgitation). (mayoclinic.org)
You may eventually need treatment for valve problems such as aortic valve stenosis, aortic valve regurgitation or an enlarged aorta. (mayoclinic.org)
Valve function: Stenosis and regurgitation. (uptodate.com)
In aortic regurgitation, the valve opening does not close completely, causing blood to leak backward into the heart. (emoryhealthcare.org)
Aortic stenosis and regurgitation may occur with age, often in those older than 70. (emoryhealthcare.org)
However, in patients with other heart conditions, such as bicuspid aortic valves (a valve with two "flaps" instead of three) and rheumatic valvular disease, aortic stenosis or regurgitation can occur much earlier. (emoryhealthcare.org)
Common symptoms of aortic stenosis and regurgitation may include fainting or feeling lightheaded, weakness or chest pain (often increasing with activity), palpitations (rapid, noticeable heartbeats), shortness of breath, and/or swelling of your lower legs. (emoryhealthcare.org)
The restricted motion may prevent the valve from opening (causing stenosis) or closing (causing leakage or regurgitation). (emaxhealth.com)
What is aortic valve regurgitation? (heart.org)
Aortic regurgitation is leakage of the aortic valve each time the left ventricle relaxes. (heart.org)
What happens during aortic regurgitation? (heart.org)
What are the symptoms of aortic valve regurgitation? (heart.org)
Mild aortic regurgitation may produce few symptoms. (heart.org)
People with more severe aortic regurgitation may notice heart palpitations, chest pain, fatigue, or shortness of breath. (heart.org)
What causes aortic regurgitation? (heart.org)
Common causes of severe aortic regurgitation are weakening of the valve tissue due to aging processes, high blood pressure , bacterial infection of the heart tissue , untreated syphilis or injury. (heart.org)
How is aortic regurgitation treated? (heart.org)
Mild aortic regurgitation may be treatable with medications to reduce blood clotting and reduce the risk of stroke, but surgical repairs or replacement are often needed. (heart.org)
In fact, more than half of patients who present with pure aortic regurgitation (AR) without any associated cardiac anomalies have aortic valve insufficiency caused by aortic root disease. (medscape.com)
Aortic regurgitation. (medscape.com)
In long-standing aortic regurgitation, this compensatory mechanism begins to deteriorate. (medscape.com)
When LV function cannot continue to compensate for volume overload, the LV dilates, and LV end-diastolic volume increases, even without further increase in aortic regurgitation volume. (medscape.com)
The clinical outcomes in patients with a bicuspid valve include significant valve regurgitation, endocarditis, aortic aneurysm and dissection, and in the majority of these patients, severe stenosis resulting from superimposed calcific changes. (ahajournals.org)
Later in childhood and into adolescence, identification of aortic regurgitation is more frequent, often slowly evolving in the patient who previously received intervention in the cardiac catheterization laboratory. (ahajournals.org)
Systematic Echocardiographic Assessment of Aortic Regurgitation-What Should the Surgeon Know for Aortic Valve Repair? (ctsnet.org)
Aortic valve surgery is performed by heart surgeons to treat most commonly bicuspid valves, other congenital aortic valve diseases, aortic valve stenosis, and aortic valve regurgitation. (clevelandclinic.org)
Aortic valve regurgitation (also called valvular insufficiency, incompetence or 'leaky valve'): These valve leaflets do not close completely. (clevelandclinic.org)
Regurgitation may occur because of floppy leaflets (prolapse), abnormal congenitally deformed valves (bicuspid or unicuspid), infection of the valve (endocarditis), the inability of the leaflets to close tightly due to dilatation of the aorta (aneurysm), holes in the leaflets, or rheumatic valve disease. (clevelandclinic.org)
This most frequently causes aortic stenosis, but may also cause aortic regurgitation. (clevelandclinic.org)
Aortic valve regurgitation is a problem with the aortic valve. (rexhealth.com)
When you have aortic valve regurgitation, the aortic valve doesn't close as it should. (rexhealth.com)
See a picture of aortic valve regurgitation . (rexhealth.com)
This is called chronic aortic valve regurgitation. (rexhealth.com)
Any condition that damages the aortic valve can cause aortic valve regurgitation. (rexhealth.com)
If your aortic valve regurgitation starts suddenly and is acute, you'll need valve replacement surgery right away. (rexhealth.com)
But in most people, aortic valve regurgitation starts slowly. (rexhealth.com)
If regurgitation is severe, if symptoms appear, or if your heart does not pump as well, you will probably need valve replacement surgery. (rexhealth.com)
Different factors cause sudden (acute) and long-standing (chronic) aortic valve regurgitation. (rexhealth.com)
A new transcatheter aortic valve replacement system for predominant aortic regurgitation implantation of the j-valve and early outcome. (springer.com)
Transcatheter aortic valve implantation for pure severe native aortic valve regurgitation. (springer.com)
Aortic insufficiency , or aortic valve regurgitation, in which your aortic valve doesn't close tightly enough. (bidmc.org)
BAV and UAV share valve pathology such as the presence of a raphe, leaflet fusion, aortic stenosis, aortic regurgitation, and/or ascending aortic dilatation, but a comprehensive echocardiographic comparison of patients with UAV and BAV has not been previously performed. (rti.org)
Each presented typical clinical features of acute bacterial endocarditis followed by the sudden development of severe and ultimately fatal aortic regurgitation. (ahajournals.org)
Aortic valve disease occurs when stenosis , regurgitation or, in really unlucky people, both cause the aortic valve not to work properly. (howstuffworks.com)
Your aortic valve isn't the only one that can be diagnosed with stenosis or regurgitation, but it's the one that matters in aortic valve disease. (howstuffworks.com)
Be aware that this study indicates that in patients with asymptomatic severe aortic regurgitation and normal left ventricular function, the use of vasodilators does not appear to delay the need for aortic valve replacement, does not decrease left ventricle size, and does not improve left ventricular function. (medpagetoday.com)
BARCELONA, Sept. 28-Long-term therapy with a vasodilator does nothing to forestall the inevitable need for aortic valve replacement or improve heart function in patients with asymptomatic severe aortic regurgitation. (medpagetoday.com)
That's the long and short of it, according to researchers here, who followed a group of patients with asymptomatic severe aortic valve regurgitation and normal left ventricular function for a mean of seven years, and found that the rate of valve replacement was similar among patients who took either nifedipine, Vasotec (enalapril maleate), or no vasodilator. (medpagetoday.com)
In addition, drug therapy did not reduce the volume of aortic regurgitation, decrease the size of the left ventricle, or improve left ventricular function, Artur Evangelista, M.D., and colleagues at the Hospital Universitari Vall d'Hebron here reported. (medpagetoday.com)
The findings reported by Evangelista and colleagues certainly diminish enthusiasm for the use of vasodilator therapy in patients with severe asymptomatic aortic regurgitation and normal left ventricular function," Dr. Carabello wrote. (medpagetoday.com)
To determine whether vasodilators really could make a difference in this population, the Spanish investigators enrolled 95 patients with asymptomatic, chronic severe aortic regurgitation and normal left ventricular function. (medpagetoday.com)
Designed to treat aortic regurgitation, the new valve stabilizes while reshaping the aortic annulus, allowing the valve leaflets to properly close, stopping the regurgitation. (prnewswire.com)
the valve can either become leaky ( aortic insufficiency / regurgitation) or partially blocked (aortic stenosis). (bionity.com)
This is called aortic regurgitation and over time weakens the heart muscle. (sutterhealth.org)
Aortic stenosis and aortic regurgitation are two of the more common conditions associated with a malfunctioning aortic valve, notes Healthline. (reference.com)
Aortic regurgitation occurs when the valve does not close properly, and some of the oxygenated blood flows back into the left ventricle. (reference.com)
Study exclusion criteria include isolated aortic valve regurgitation or other significant valve disease, coronary artery disease requiring revascularisation at the time of referral, previous open heart surgery, a myocardial infarction or percutaneous coronary intervention within the last year, a cerebral infarction within the previous 30 days, severe renal -, pulmonary -, or infectious disease, and unstable preoperative condition. (clinicaltrials.gov)
What is moderate aortic regurgitation? (reference.com)
When the aortic valve does not close completely between heartbeats and allows blood to flow back into the left ventricle, aortic valve regurgitation occurs. (reference.com)
The major decision in treating aortic valve regurgitation is whether to have aortic valve replacement surgery and, if so, when to do it. (cigna.com)
Valve surgery is usually only done if regurgitation is severe and in danger of doing irreparable damage to your heart. (cigna.com)
The severity of aortic valve regurgitation. (cigna.com)
The faster the regurgitation progresses, the sooner you will need a valve replacement. (cigna.com)
The severity of regurgitation and the likelihood it will get worse need to be balanced against the risks involved with having a valve replacement surgery. (cigna.com)
In aortic regurgitation, the valve is leaky. (rochester.edu)
New technology advances promise to simplify TAVI and to improve outcome by reducing the rate of TAVI-specific complications such as peri-prosthetic aortic regurgitation, acute kidney injury, vascular complications, and conduction disturbances. (escardio.org)
In a multivariate analysis, this registry showed that patients with a more-than-mild peri-prosthetic aortic regurgitation following TAVI had a 2.5-times increased 1-year mortality risk. (escardio.org)
For more than 50 years, surgical aortic valve replacement (SAVR) has been the standard treatment for severe symptomatic aortic stenosis and for aortic regurgitation. (mainlinehealth.org)
This difference can bring about stenosis because the valve may be smaller to compensate for the missing leaflet, or it can cause regurgitation because the two leaflets don't seal perfectly. (howstuffworks.com)
There are two protypical processes that can affect the aortic valve - aortic stenosis in which the valve fails to open fully, thereby obstructing blood flow out from the heart, and aortic insufficiency , also called aortic regurgitation , in which the aortic valve is incompetent and blood flows passively back to the heart in the wrong direction. (wikidoc.org)
Common causes of aortic regurgitation include dilation of the aorta, previous rheumatic fever , infection, i.e. infective endocarditis , myxomatous degeneration of the aortic valve, Marfan's syndrome and rupture of a congenitally fenestrated aortic cusp. (wikidoc.org)
Aortic Valve Regurgitation is an abnormality of the aortic valve that allows blood to flow backwards through the valve. (medmovie.com)
In aortic valve regurgitation, blood that is supposed to flow up through the aorta flows backward through the valve into the left ventricle of the heart. (medmovie.com)
In a study of 5.4 million adults in the UK, published in the European Heart Journal [1] today (Thursday), researchers found that above a systolic blood pressure [2] of 115 mmHg, every additional 20 mmHg was associated with a 41% higher risk of aortic stenosis (AS) and a 38% higher risk of aortic regurgitation (AR) later in life. (eurekalert.org)
Long-term exposure to higher blood pressure is a strong and potentially modifiable risk factor for aortic stenosis and regurgitation at every level of typical blood pressure, not only in those who are classified as having hypertension. (eurekalert.org)
Regurgitation happens when the valve has become damaged or worn out and blood is able to leak backwards. (apollohospitals.com)
Other problems included aortic regurgitation and stenosis. (si.edu)
Valve replacement surgery can fix aortic valve regurgitation. (lmh.org)
If you have severe aortic valve regurgitation or stenosis, the risks of not replacing the valve may be greater than the risks of surgery, unless you have other health problems that make surgery too dangerous. (lmh.org)
It is essential for the anesthesiologist to know whether the patient is scheduled for aortic valve replacement (AVR) due to underlying aortic stenosis (AS) or aortic regurgitation (AR), as the hemodynamic goals for management of AS and AR are very different. (oncologynurseadvisor.com)
The regurgitation of aortic blood into the left ventricle during diastole leads to chronic volume overload. (oncologynurseadvisor.com)

A new alternative is transcatheter aortic valve replacement (TAVR), which delivers a mechanical valve to the site of the diseased valve through a catheter . (wikipedia.org)
Another option for aortic valve replacement is transcatheter aortic valve replacement (TAVR). (wikipedia.org)
Transcatheter aortic valve replacement (TAVR) is a procedure used to replace the aortic valve without opening the chest. (medlineplus.gov)
The first-in-human transcatheter aortic valve implantation (TAVI) was successfully performed in 2002. (springer.com)
Another technique is transcatheter aortic valve replacement (TAVR) . (medlineplus.gov)
also known as transcatheter aortic valve replacement or TAVR) as an alternative to surgical aortic valve replacement (SAVR) is evolving. (uptodate.com)
Candidates for transcatheter aortic valve implantation (TAVI) should be fully evaluated for symptoms, severity of their aortic stenosis and comorbid pathologies. (uptodate.com)
See 'Imaging for transcatheter aortic valve implantation', section on 'Preprocedural assessment' and 'Clinical manifestations and diagnosis of low gradient severe aortic stenosis', section on 'Diagnosis and evaluation' . (uptodate.com)
General management and monitoring - Routine antibiotic prophylaxis is recommended for all patients undergoing transcatheter aortic valve implantation (TAVI) prior to surgical incision or vascular access to reduce the risk of wound infection and endocarditis [ 2 ]. (uptodate.com)
Transcatheter aortic valve replacement (TAVR) is a minimally invasive procedure to replace a narrowed aortic valve that fails to open properly (aortic valve stenosis). (mayoclinic.org)
Transcatheter aortic valve replacement is sometimes called transcatheter aortic valve implantation (TAVI). (mayoclinic.org)
Transcatheter aortic valve replacement (TAVR) is a minimally invasive procedure to replace the aortic valve in people with aortic valve stenosis. (mayoclinic.org)
Your treatment team will give you instructions on how to prepare for your transcatheter aortic valve replacement (TAVR) procedure. (mayoclinic.org)
Transcatheter aortic valve replacement (TAVR) involves replacing your damaged aortic valve with one made from cow or pig heart tissue, also called a biological tissue valve. (mayoclinic.org)
Walther T, Möllmann H, van Linden A, Kempfert J. Transcatheter aortic valve implantation transapical: step by step. (springer.com)
Albacker T, Ramankutty R, Roselli E. Transapical transcatheter aortic valve implantation [Internet]. (springer.com)
Successful fast track protocol implementation for patients undergoing transapical transcatheter aortic valve implantation. (springer.com)
Predicting risk in transcatheter aortic valve implantation: comparative analysis of EuroSCORE II and established risk stratification tools. (springer.com)
SAN DIEGO - A self-expanding valve was equivalent to a balloon-expandable valve for 30-day outcomes in patients with symptomatic aortic stenosis who underwent transfemoral transcatheter aortic valve replacement, according to data from the SOLVE-TAVI trial presented at TCT 2018. (healio.com)
The evidence base for transcatheter aortic valve replacement in the United States is now extensive. (healio.com)
Transcatheter aortic valve replacement (TAVR) is a procedure to treat aortic stenosis, a type of heart valve disease. (nih.gov)
A-TAVI, apical transcatheter aortic valve implantation. (clinicaltrials.gov)
In fact, we were one of the first medical centers to perform transcatheter aortic valve replacement (TAVR) - a minimally invasive treatment for severe aortic stenosis. (upmc.com)
Investigation of Computed-Tomography Based Predictors of Acute Stroke Related to Transcatheter Aortic Valve Replacement: Aortic Wall Plaque Thickness Might be a Predictive Parameter of Stroke. (medindia.net)
Abstract: Transcatheter aortic valve replacement (TAVR) is indicated in some patients with severe aortic stenosis for whom surgical intervention is not deemed appropriate. (nursingcenter.com)
TRANSCATHETER AORTIC valve replacement (TAVR), also known as transcatheter aortic valve implantation, is a minimally invasive procedure that positions a new bioprosthetic valve over the damaged native aortic valve. (nursingcenter.com)
Transcatheter aortic valve replacement (TAVR) is an innovative, minimally invasive treatment for patients with severe aortic stenosis who are at intermediate or high risk for open heart surgery. (memorialhermann.org)
More recently, heart specialists have begun using minimally invasive techniques such as video-assisted or robotic-assisted surgery and transcatheter aortic valve replacement (TAVR) . (sutterhealth.org)
If you or someone you know has severe aortic stenosis, transcatheter aortic valve replacement (TAVR) can offer new hope and healing. (orlandohealth.com)
You may qualify for transcatheter aortic valve replacement if your heart valve has narrowed severely and if other medical conditions prevent you from having traditional valve replacement surgery. (orlandohealth.com)
Transcatheter aortic valve replacement (TAVR) is a treatment option for some patients with severe aortic stenosis (narrowing of the aortic valve opening). (clevelandclinic.org)
Transcatheter Aortic Valve Replacement (TAVR), also known as Transcatheter Aortic Valve Implantation (TAVI), is an innovative approach to replacing the aortic valve without open-heart surgery. (ohsu.edu)
Following your transcatheter aortic valve replacement surgery, you will remain in OHSU's care for follow up examinations, x-rays, blood tests, and heart monitoring. (ohsu.edu)
This book provides comprehensive information on transcatheter aortic valve implantation (TAVI), which was introduced for the treatment of aortic valve disease less than two decades ago. (springer.com)
Starting with the history of TAVI, addressing the interventional anatomy of aortic valve disease, and reporting on the expert authors' day-to-day experiences, this highly informative book offers an essential update for all cardiologists and surgeons interested in transcatheter aortic valve implantation, as well as any clinician, decision-maker and stakeholder involved in patient selection, procedural management, and follow-up. (springer.com)
He is an internationally recognized expert in structural heart disease, leading one of the busiest structural heart disease centers in Europe, and also masters many techniques for transcatheter management of cardiac valvular disease, with an expertise ranging from new-generation devices for transcatheter aortic valve implantation to endovascular procedures and mitral valve repair. (springer.com)
He has published several important articles on transcatheter aortic valve implantation, with a key focus on new devices, techniques, and methods to increase the biocompatibility of endoprostheses. (springer.com)
For them, we turn to minimally invasive procedures, including the transcatheter aortic valve implant (TAVI). (thestar.com)
Transcatheter aortic valve-in-valve implantation is a less invasive approach, however a comprehensive evaluation of survival after the procedure has not previously been performed, according to background information in the article. (medindia.net)
However, doctors throughout the Sutter Health network perform an innovative and less invasive procedure called Transcatheter Aortic Valve Replacement (TAVR). (sutterhealth.org)
Traditional open-heart surgery has long been the gold standard treatment for this disease but, today, patients deemed inoperable or high risk for surgery may be candidates for a procedure called transcatheter aortic valve replacement (TAVR), as our graphic shows. (columnfivemedia.com)
A randomized clinical trial of transcatheter aortic valve implantation (TAVI) versus conventional surgical aortic valve replacement (SAVR) in patients older than 70 years of age suffering from severe aortic valve stenosis. (clinicaltrials.gov)
BACKGROUND: Transcatheter aortic valve implantation (TAVI) is a new and rapidly evolving treatment option for patients with severe degenerative aortic valve stenosis. (clinicaltrials.gov)
Traditionally, this has been a surgical procedure (surgical AVR or SAVR) but a non-surgical option called transcatheter aortic valve replacement (TAVR) or TAVI transcatheter aortic valve implantation delivers a prosthetic valve through a catheter. (wikipedia.org)
Transcatheter aortic valve replacement (TAVR) at Bronson could help you get back to a higher quality of life. (bronsonhealth.com)
Transcatheter aortic valve replacement (TAVI) is the standard-of-care for inoperable patients with symptomatic aortic stenosis. (escardio.org)
5 ) Since 2002, ( 6 , 7 ) transcatheter aortic valve implantation (TAVI) has been established as an emerging therapeutic approach for patients with unacceptable surgical risk and a less invasive alternate treatment option for patients at high risk for open-heart surgery. (escardio.org)
Minimally invasive approaches, including mini aortic valve replacement (mini AVR) and more recently, transcatheter aortic valve replacement (TAVR) are now available, reducing recovery time and more quickly improving quality of life for patients. (mainlinehealth.org)
TAVR - Transcatheter aortic valve replacement may be for someone who is not a candidate for surgery, or is considered high risk or intermediate risk for open-chest surgery. (mainlinehealth.org)
The University of Rochester Medical Center has been designated as the only site in the region to participate in clinical trials to study treatment of aortic stenosis through transcatheter aortic valve replacement (TAVR) for patients with low-risk or intermediate risk for surgical aortic valve replacement. (rochester.edu)
Attendees who interpret a minimum of 40 TAVR cases will be awarded a Certificate of Completion in Transcatheter Aortic Valve Replacement. (acr.org)
Do frailty measures improve prediction of mortality and morbidity following transcatheter aortic valve implantation? (bmj.com)
Use of transcatheter aortic valve replacement (TAVR) for severe aortic stenosis (AS) has grown rapidly over the last decade and the technology has correspondingly matured. (bmj.com)
Transcatheter aortic valve replacement (TAVR) is superior to medical therapy in inoperable patients with severe, symptomatic aortic stenosis (AS), and may be the preferred option in high-risk surgical patients. (bmj.com)
Van Belle and colleagues hypothesized that transcatheter aortic valve replacement (TAVR) would correct this process, but that significant residual paravalvular leak (PVL) following TAVR would abrogate this corrective effect. (bmj.com)
Transcatheter aortic valve implantation (TAVI) has had a major impact on both morbidity and mortality in high-risk and inoperable patients with severe aortic stenosis. (bmj.com)
The advent of transcatheter aortic valve replacement (TAVR) has afforded an alternative to surgical aortic valve replacement (SAVR) for high-risk or non-operative candidates for aortic valve surgery. (bmj.com)
Transcatheter aortic valve replacement is a procedure that delivers a replacement valve in much the same way that a cardiac stent is implanted. (apollohospitals.com)
Medtronic has received CE Mark approval in Europe to introduce its CoreValve Evolut 23mm transcatheter aortic valve implantation (TAVI) system. (medgadget.com)
Transcatheter aortic valve implantation (TAVI) is the effective alternative for very elderly patients, says a study in the January 2014 issue of The Annals of Thoracic Surgery . (seniorjournal.com)
Transcatheter Aortic Valve Replacement (TAVR) is an innovative approach to aortic valve replacement. (maimonidesmed.org)
Per the instructions for use (ifu), valve embolization is a known potential complication associated with the transcatheter aortic valve replacement (tavr) procedure. (fda.gov)

The aortic valve is a valve in the human heart between the left ventricle and the aorta . (wikipedia.org)
When the pressure in the left ventricle rises above the pressure in the aorta, the aortic valve opens, allowing blood to exit the left ventricle into the aorta. (wikipedia.org)
The aortic valve allows blood to flow from the heart 's lower left chamber (ventricle) into the aorta and to the body. (webmd.com)
For patients with Marfan or Loeys-Dietz syndrome who are at risk of rupture of the aorta, the standard of care has been surgery to replace both the root and the valve of the aorta with a mechanical or biological prosthesis. (hopkinsmedicine.org)
Histologic abnormalities of the ascending aorta and pulmonary trunk in patients with bicuspid aortic valve disease: clinical relevance to the ross procedure. (medscape.com)
Matsuyama S, Nishida T, Ushijima T, Tominaga R. Long-term results after treatment of the ascending aorta for bicuspid aortic valve patients. (medscape.com)
Relation of coarctation of the aorta to the occurrence of ascending aortic dilation in children and young adults with bicuspid aortic valves. (medscape.com)
In particular, the aortic valve controls the flow of oxygenated blood pumped out of the heart from the left ventricle into the aorta, the main artery leading to the rest of the body. (healthcentral.com)
Blood flows out of your heart and into the aorta through a valve. (medlineplus.gov)
Most aortic valves are replaced because they restrict flow forward through the aorta to the brain and body. (medlineplus.gov)
The job of the aortic valve is to pump that oxygen-rich blood into the aorta, the largest blood vessel in your body. (webmd.com)
The aortic valve is a one-way valve comprised of three leaflets that conducts blood flow from the main pumping chamber of your heart, the left ventricle, into the largest artery in your body, the aorta, which conducts blood throughout the rest of your body. (hopkinsmedicine.org)
When the left ventricle squeezes blood into the aorta, the aortic valve normally closes to prevent blood from flowing back into the left ventricle. (hopkinsmedicine.org)
This permits the surgeon to safely open the aorta and access the aortic valve in a bloodless field. (hopkinsmedicine.org)
The operation involves opening of the aorta and removal of the diseased aortic valve leaflets. (hopkinsmedicine.org)
The aortic valve separates the heart and aorta. (medlineplus.gov)
It may lead to a narrowed or obstructed aortic valve opening (aortic valve stenosis), making it difficult for the heart to pump blood into the aorta. (mayoclinic.org)
Some people are born with a bicuspid aortic valve, in which the aortic valve - located between the lower left heart chamber (left ventricle) and the main artery that leads to the body (aorta) - has only two (bicuspid) cusps instead of three. (mayoclinic.org)
Some people with a bicuspid aortic valve may have an enlarged aorta - the main blood vessel leading from the heart. (mayoclinic.org)
Doctors may use this test to evaluate the aortic valve, the aorta, the heart chambers and the blood flow through your heart. (mayoclinic.org)
Children and adults with a bicuspid aortic valve will require regular monitoring for any changes in their condition, such as valve problems or an enlarged aorta, by doctors trained in congenital heart disease (congenital cardiologists). (mayoclinic.org)
Aortic stenosis refers to a condition that causes obstruction to blood flow between the left ventricle and the aorta. (cincinnatichildrens.org)
When the left ventricle ejects blood into the aorta, normal aortic valve leaflets spread apart easily and cause no obstruction to outflow of the blood from the heart. (cincinnatichildrens.org)
Aortic stenosis occurs when abnormalities of the aortic valve lead to narrowing and obstruction between the left ventricle and the aorta. (cincinnatichildrens.org)
When the aortic valve does not open freely, the left ventricle must work harder to eject blood into the aorta. (cincinnatichildrens.org)
The echocardiogram is also important in excluding other problems which may be associated with aortic stenosis, such as left ventricular failure, coarctation of the aorta , ventricular septal defect or mitral valve stenosis. (cincinnatichildrens.org)
Aortic valve insufficiency results from leakage and backflow of blood that is ejected from the left ventricle (LV) into the ascending aorta back into the left ventricle. (medscape.com)
The aortic valve is composed of 3 thin leaflets (ie, cusps) that project from the wall of the proximal ascending aorta. (medscape.com)
In the embryonic stage, the truncus arteriosus connects to the dorsal aspect of the aorta via 6 pairs of aortic arches. (medscape.com)
Regardless of etiology, aortic valve insufficiency results in volume overload on the LV because the LV is forced to pump the entire diastolic volume received from the left atrium and the regurgitant volume from the aorta through an incompetent aortic valve. (medscape.com)
4,5 Epidemiological data from the Baltimore-Washington Infant Study demonstrated the familial clustering of left heart obstructive lesions (including coarctation of the aorta, aortic valve stenosis, and hypoplastic left heart syndrome). (ahajournals.org)
The aortic valve is located between the left ventricle (lower heart pumping chamber) and the aorta, which is the largest artery in the body. (clevelandclinic.org)
About 25 percent of patients with bicuspid aortic valves may have some enlargement of the aorta above the valve. (clevelandclinic.org)
Aortic dissection , which means that the inner layer of the aorta separates from the middle layer. (rexhealth.com)
Trauma to the heart valve or aorta. (rexhealth.com)
05). There were no significant differences in aortic dimensions, with a similar pattern of enlargement of the ascending aorta. (rti.org)
The aortic valve specifically controls the blood that runs from the heart through your aorta and to the rest of the body. (nih.gov)
The doctor guides the tube with the replacement valve first through the vein and then through the aorta to the heart. (nih.gov)
Aortic stenosis means your aortic valve does not open widely enough to allow adequate blood flow from your heart to your aorta. (upmc.com)
Your aortic valve is located where your heart's lower left chamber - the left ventricle - meets your body's largest artery, the aorta. (upmc.com)
In aortic stenosis, because the valve does not open widely enough, not enough blood flows from the heart into the aorta. (upmc.com)
Aortic valve governs the orifice from the lower left chamber of the heart to the aorta. (medindia.net)
An intact aortic valve is a must so as to ensure a smooth flow of blood pumped by the left ventricular chamber into the major vessel called aorta. (medindia.net)
One of these valves, the aortic valve , guards the passageway between the left ventricle and the aorta , your primary supply artery for oxygen-rich blood. (howstuffworks.com)
The TAVR procedure involves replacing the heart valve with a new one by using a catheter to thread it through vessels in the leg into the aorta and then the heart. (ohsu.edu)
Once the valve is in place and the aorta has been closed, the patient is taken off the heart-lung machine. (bionity.com)
The aortic valve is the gatekeeper between the left ventricle and the aorta, allowing oxygenated blood to flow out of the heart and stopping the backflow of blood into the heart. (sutterhealth.org)
The trileaflet aortic valve is at the center of the heart between the left ventricle and the aorta, and it serves to prevent blood from moving into the left ventricle from the aorta. (reference.com)
The aortic valve is located between the left ventricle (pumping chamber) of the heart and the aorta, the large blood vessel that exits the heart. (medmovie.com)
The aortic valve lies between the left ventricle (the left pumping chamber of the heart) and the aorta (the blood vessel that carries blood away from the heart to the rest of the body. (rochester.edu)
The aortic valve allows oxygen-rich blood to flow out of the heart to the aorta, which is a large blood vessel that branches out to send blood throughout the body. (empowher.com)
Charles Hufnagel, of the Georgetown Medical Center in Washington, DC, took a step toward addressing this challenge in 1952 by implanting an artificial valve in a patient's aorta, a site that normally does not contain a valve. (laskerfoundation.org)
The aortic valve helps move blood from your heart to your aorta, the large artery that carries oxygen-rich blood to your body. (uwhealth.org)
TAVR is a minimally invasive option that enables our physicians to replace a diseased aortic valve by entering a catheter through the leg, ribs or aorta. (mainlinehealth.org)
Every time your heart pumps, blood rushes through the aortic valve up into the aorta and then to the rest of the body. (everydayhealth.com)
As the heart relaxes before the next beat, the blood in the aorta tries to fall back but the valve leaflets immediately open, meet in the center and catch any blood before it can leak back down into the left ventricle. (everydayhealth.com)
Aorta and Aortic Valve Surgery - Keyhole Approaches. (howstuffworks.com)
Dilatation of the wall of the aorta behind these cusps is called aortic sinus. (wikidoc.org)
The aortic valve normally allows blood to pass from the left ventricle into the aorta. (medmovie.com)
Here the native valve is retained and the aorta is replaced with a synthetic tube into which the native valve is resuspended. (bestcardiachospitals.com)
People who have long-term raised blood pressure have an increased risk of aortic valve disease (AVD) - problems with the valve that controls how blood is pumped from the left ventricle of the heart out into the main artery, the aorta. (eurekalert.org)
Previous research has suggested that the mechanism involved in the link between blood pressure and AVD could be that higher blood pressure can cause cell damage leading to a loss of elasticity in the aorta and stiffening of the aortic valve. (eurekalert.org)
The base of the valve was designed to fit the shape of the aorta when implanted. (si.edu)
The valve expands and is anchored inside the aorta, restoring blood flow. (maimonidesmed.org)
The aortic valve is located between the pumping chamber on the left side of the heart and the aorta, which is a major artery. (epnet.com)
When the heart chamber squeezes to push blood into the aorta, the valve should open fully to allow blood flow. (epnet.com)

A biological valve is used for TAVR. (medlineplus.gov)
TAVR is used for people with severe aortic stenosis who aren't healthy enough to have open chest surgery to replace a valve . (medlineplus.gov)
TAVR aortic valve surgery can be done through a small incision made in the groin or the left chest. (medlineplus.gov)
Percutaneous valvuloplasty and catheter-based valve replacement such as TAVR are done only in people who are too sick or at very high risk for major heart surgery. (medlineplus.gov)
Some TAVR valves are self-expanding. (mayoclinic.org)
TAVR may be an option for people who are at intermediate or high risk of complications from surgical aortic valve replacement (open-heart surgery). (mayoclinic.org)
The decision to treat aortic stenosis with TAVR is made after you consult with a team of heart and heart surgery specialists, who work together to determine the best treatment option for you. (mayoclinic.org)
TAVR can relieve the signs and symptoms of aortic valve stenosis and may improve survival in people who have severe symptoms. (mayoclinic.org)
In some cases, a TAVR biological tissue valve may be placed into an existing biological tissue valve that is no longer working. (mayoclinic.org)
TAVR replaces a faulty aortic valve with an aortic valve made from animal tissue. (nih.gov)
You may need TAVR to replace a diseased aortic valve or to repair a replacement aortic valve that no longer works. (nih.gov)
Your doctor may recommend TAVR if you have a medical condition that makes it too risky to replace the valve during open-heart surgery , which is more invasive. (nih.gov)
Before TAVR, your medical team will measure the valve opening, then give you medicines that relax you or put you to sleep, as well as medicines that prevent abnormal blood clots. (nih.gov)
This article explores when TAVR may be the preferred treatment option over surgical aortic valve replacement and discusses various prosthetic valve devices. (nursingcenter.com)
1 TAVR is currently indicated for patients with severe aortic stenosis and high surgical risk. (nursingcenter.com)
Recommended interventions for aortic stenosis include TAVR, surgical aortic valve replacement (SAVR), percutaneous balloon valvuloplasty, and medical management. (nursingcenter.com)
TAVR is a minimally invasive procedure that uses catheters in blood vessels to replace the aortic valve with a specially designed artificial valve. (memorialhermann.org)
TAVR is FDA approved for patients who are ineligible for surgical aortic valve replacement, high-risk patients and intermediate-risk patients. (memorialhermann.org)
For patients who are not TAVR candidates, minimally invasive aortic valve replacement using a small 5cm incision in the upper chest is another option. (memorialhermann.org)
Your doctor is the best person to help you make the decision as to whether TAVR is a good option for you, whether it be TAVR, minimally invasive valve surgery, or conventional open heart surgery. (memorialhermann.org)
Minimally invasive aortic valve replacement such as TAVR is an alternative for people at moderate to high risk of complications from open-heart surgery - those who are older, frail or who have a history of history of health problems such as stroke, heart attack, atrial fibrillation, COPD, peripheral artery disease, diabetes and high blood pressure. (sutterhealth.org)
TAVR is a minimally invasive procedure that replaces your damaged aortic valve with a collapsible replacement valve made from medical-grade plastics and bovine heart tissue. (orlandohealth.com)
TAVR is an ideal option for a broad range of patients with aortic stenosis. (orlandohealth.com)
It is important to determine if medical management, TAVR or surgical aortic valve replacement (SAVR) is the best option for you. (clevelandclinic.org)
Cleveland Clinic began the TAVR program in 2006 as one of three early pioneering centers in the USA and one of 21 centers involved in the randomized PARTNER I trials (Placement of Aortic Transcatheter Valve) to evaluate TAVR. (clevelandclinic.org)
Patients with severe aortic stenosis who are considered inoperable by a heart surgeon, might be candidates for TAVR. (ohsu.edu)
TAVR is a minimally invasive way to replace diseased aortic valves and failed artificial aortic tissue valves. (sutterhealth.org)
TAVR is performed to treat severe aortic valve stenosis, a condition associated with heart valve disease when the opening of the valve is narrowed. (bronsonhealth.com)
Bronson uses 2 types of valves for the TAVR procedure. (bronsonhealth.com)
You may be a candidate for TAVR if you have moderate or severe aortic stenosis. (bronsonhealth.com)
Our TAVR team consists of interventional cardiologists, cardiothoracic surgeons, cardiac anesthesiologists, echo technicians, cath lab staff, cardiac surgery staff and valve program coordinator. (bronsonhealth.com)
One of these is TAVR - transcatheter aortic heart valve replacement - a minimally invasive treatment that we helped pioneer. (uwhealth.org)
TAVR is a treatment for aortic valve stenosis. (uwhealth.org)
TAVR allows us to correct these problems by placing a new valve directly into your diseased valve. (uwhealth.org)
We use TAVR to treat adults with severe aortic stenosis who would not tolerate open-heart surgery well. (uwhealth.org)
The UR Medicine Advanced Heart Valve Center was the first in the region to perform TAVR. (rochester.edu)
TAVR works by replacing the diseased heart valve with either the Edwards Sapien Transcatheter Heart Valve (THV) or the Medtronic Corevalve Heart Valve. (rochester.edu)
The comparative efficacy of TAVR and surgical aortic valve replacement (SAVR) in intermediate risk AS patients has been less well studied. (bmj.com)
The doctors and staff at Apollo hospitals are pleased that you are considering us for your Trans Catheter Aortic Valve Replacement (TAVR). (apollohospitals.com)
We would like to take the time to briefly discuss the process of undergoing Trans Catheter Aortic Valve Replacement (TAVR). (apollohospitals.com)
Your physician has discussed the indications for surgery and the criteria that must be met prior to your Trans Catheter Aortic Valve Replacement (TAVR). (apollohospitals.com)
TAVR is a minimally invasive procedure that repairs the narrowed aortic valve without a major surgery. (apollohospitals.com)
TAVR can relieve the signs and symptoms of aortic valve stenosis and may improve survival in people who can't undergo surgery or have a high risk of surgical complications. (apollohospitals.com)
TAVR may be an option if you are at intermediate or high risk of complications from surgical aortic valve replacement for symptomatic severe Aortic Stenosis. (apollohospitals.com)
Similar to a technique used to implant cardiac stents into clogged arteries, the TAVR procedure involves a physician guiding a catheter through an artery to the heart with an artificial valve attached. (maimonidesmed.org)
As a minimally invasive aortic valve replacement surgery method, TAVR has been shown to significantly improve survival and quality of life when compared to medical management and is increasingly being performed as a successful alternative to traditional cardiac surgery. (maimonidesmed.org)
TAVR heart surgery has recently been approved for both high risk and intermediate risk patients with symptomatic severe aortic stenosis. (maimonidesmed.org)
The TAVR Program at Maimonides in Brooklyn, NY is led by an expert team of physicians and surgeons committed to improving outcomes and quality of life for patients with aortic valve stenosis. (maimonidesmed.org)

If you have severe stenosis, you probably need a valve replacement. (webmd.com)
If you have severe stenosis but don't have your valve replaced, you have a high risk of dying suddenly or developing heart failure . (webmd.com)
Berland J, Cribier A, Savin T et al (1989) Percutaneous balloon valvuloplasty in patients with severe aortic stenosis and low ejection fraction. (springer.com)
Charlson E, Legedza AT, Hamel MB (2006) Decision-making and outcomes in severe symptomatic aortic stenosis. (springer.com)
Iung B, Cachier A, Baron G et al (2005) Decision-making in elderly patients with severe aortic stenosis: why are so many denied surgery? (springer.com)
Aortic valve replacement (AVR) has been the mainstay of treatment of symptomatic severe aortic stenosis (AS). (uptodate.com)
See 'Indications for valve replacement in aortic stenosis in adults' and 'Choice of therapy for symptomatic severe aortic stenosis' . (uptodate.com)
As a result, in the presence of a depressed cardiac output, relatively low pressure gradients can be seen in some patients with severe aortic stenosis. (uptodate.com)
See 'Clinical manifestations and diagnosis of low gradient severe aortic stenosis' . (uptodate.com)
If this occurs it is almost always in a newborn infant with very severe valve obstruction. (cincinnatichildrens.org)
Symptoms occur only with severe aortic stenosis. (cincinnatichildrens.org)
In an older child, severe aortic stenosis rarely causes heart failure. (cincinnatichildrens.org)
Severe aortic stenosis is a rare, but well-documented, cause of sudden death during strenuous sports activities. (cincinnatichildrens.org)
With severe aortic stenosis, the electrocardiogram can show enlargement of the left ventricle and may even show evidence of left ventricular strain. (cincinnatichildrens.org)
Dental cleaning or even minor infection, such as a tooth abscess, can cause severe bacterial endocarditis of the aortic valve. (clevelandclinic.org)
Many patients with aortic valve disease are asymptomatic (have no symptoms), even when the stenosis (narrowing) or insufficiency (leak) are severe. (clevelandclinic.org)
If damage to your aortic valve is severe, surgery may be necessary to repair or replace the valve. (bidmc.org)
aortic stenosis was more common and more severe in patients with UAV. (rti.org)
He was admitted to the authors' institution with a diagnosis of bicuspid aortic valve with severe aortic insufficiency and deterioration of the systolic function of the left ventricle. (ctsnet.org)
Bicuspid aortic valve with raphe between the left coronary and right coronary cusps and severe aortic insufficiency were informed. (ctsnet.org)
The increasing prevalence of severe aortic valve defects is a corollary to increases in life expectancy. (clinicaltrials.gov)
For many years, surgical valve replacement with extracorporeal circulation has been the gold standard in the treatment of severe aortic valve diseases. (clinicaltrials.gov)
The effects of aortic valve stenosis range from mild to severe, and symptoms can be difficult to recognize. (upmc.com)
Unfortunately, most patients do not present to healthcare providers with symptoms until aortic stenosis is severe. (nursingcenter.com)
If left untreated, patients with symptomatic severe aortic stenosis have a poor prognosis. (nursingcenter.com)
The timing of intervention varies but typically occurs when patients approach stage C (asymptomatic severe aortic stenosis) or stage D (symptomatic severe aortic stenosis). (nursingcenter.com)
More than one in eight patients aged 75 and older have moderate to severe aortic valve stenosis. (thestar.com)
EH: The normal treatment for severe aortic valve disease is surgery - we take out the old aortic valve and sew in a new one. (thestar.com)
The median predicted risk of mortality was 2.57%, and the predominant aortic valve disease in the sample was aortic stenosis (87.9%), although 14.4% had severe aortic insufficiency. (medpagetoday.com)
But valvuloplasty might be done to relieve severe symptoms if a person has to wait before having the valve replaced. (rexhealth.com)
AIM: To compare TAVI and surgical aortic valve replacement (SAVR) in patients with severe aortic valve stenosis. (clinicaltrials.gov)
POPULATION: All patients with severe degenerative aortic valve stenosis referred for elective or subacute aortic valve intervention will be screened for study eligibility. (clinicaltrials.gov)
It may be used in patients with symptomatic severe aortic stenosis who are not candidates for conventional open heart procedure to replace valve. (patientslikeme.com)
If you suffer from severe aortic stenosis, you don't have to travel far for innovative heart surgery. (bronsonhealth.com)
2 , 3 , 4 ) Nonetheless, more than 30% of patients with symptomatic severe stenosis do not undergo surgical aortic valve replacement (SAVR), mainly due to advanced age and the accumulation of concomitant comorbidities. (escardio.org)
It's a procedure used to treat severe Aortic Stenosis - a condition in which the aortic valve gets narrower and restricts the flow of blood from the heart. (rochester.edu)
For severe aortic stenosis, your doctor may prescribe medicine to make you feel better in the short term, but ultimately you will require intervention and valve replacement. (apollohospitals.com)
however, nearly one-third of patients with severe symptomatic valve disease are not recommended for surgery due to multiple comorbidities or advanced age. (seniorjournal.com)
Narrowing of the aperture to 0.75cm2 or less produces severe obstruction to left ventricular ejection and a pressure gradient across the aortic valve develops which may reach 50 mm to even 200 mmHg. (hubpages.com)
Valve replacement is recommended based on many things including how severe the stenosis is, whether you have symptoms, and how well your heart is pumping blood. (lmh.org)
Valve replacement surgery is an effective treatment for people who have severe aortic valve stenosis. (lmh.org)
Patients with chronic aortic valve disease often have had time to allow for ventricular compensation, whereas the patient with new-onset severe AR may display acute decompensation. (oncologynurseadvisor.com)
The edwards sapien 3 transcatheter heart valve is indicated for relief of aortic stenosis in patients with symptomatic heart disease due to severe native calcific aortic stenosis who are judged by a heart team, including a cardiac surgeon, to be at intermediate or greater risk for open surgical therapy (i. (fda.gov)

Davies H (1965) Catheter-mounted valve for temporary relief of aortic insufficiency. (springer.com)
Phillips SJ, Ciborski M, Freed PS et al (1976) A temporary catheter-tip aortic valve: hemodynamic effects on experimental acute aortic insufficiency. (springer.com)
The severity of aortic insufficiency can sometimes be reduced with medications, but aortic stenosis has no effective medical therapy. (hopkinsmedicine.org)
Iwas born with a bicuspid aortic valve which suffered from insufficiency as well as stenosis. (healingwell.com)
BAV can be associated with aortic valve stenosis, insufficiency, and prolapse, as well as aortic root dilation. (medhelp.org)
Many mechanisms contribute to aortic valve insufficiency. (medscape.com)
This article primarily focuses on aortic valve insufficiency caused by abnormalities in the aortic valve leaflets. (medscape.com)
Aortic valve insufficiency can be due to, or associated with, congenital heart disease. (medscape.com)
Causes of acquired aortic valve insufficiency include endocarditis, trauma, systemic diseases, and connective tissue syndromes. (medscape.com)
Recently, the percentage of individuals with aortic valve insufficiency caused by aortic root disease has been steadily increasing compared with the percentage of those with valvular disease. (medscape.com)
I'm 50 years old, male, have a calcified aortic valve stenosis, bicuspid by birth, LVH, slightly insufficiency and slightly ST segment abnormalities. (healingwell.com)
There was an absence of central coaptation, which is why aortic insufficiency was originated. (ctsnet.org)
The intraoperative transesophageal echocardiogram showed the absence of aortic insufficiency and a successful aortic valve repair. (ctsnet.org)
Abrupt loss of function of the aortic valve results in acute aortic insufficiency and loss in the normal diastolic blood pressure resulting in a wide pulse pressure and bounding pulses. (wikipedia.org)
The endocardium perfuses during diastole and so acute aortic insufficiency can reduce perfusion of the heart. (wikipedia.org)
Slowly worsening aortic insufficiency results in a chronic insufficiency which permits the heart to compensate (unlike acute insufficiency). (wikipedia.org)
Follow-up echocardiography of 76 (60.3%) event-free patients showed valve insufficiency (AI)≤AI I° in 68 (89.5%) and grade II in 7 (9.2%) patients. (nih.gov)

Cribier A, Eltchaninoff H, Bash A et al (2002) Percutaneous transcatheter implantation of an aortic valve prosthesis for calcific aortic stenosis: first human case description. (springer.com)
The Washington University group compared operator radiation exposure during transcatheter valve implantation when performed via a transfemoral versus an alternative access approach, when performed in a catheterization lab versus a hybrid operating room (OR), and investigated the potential benefit of disposable shielding. (ctsnet.org)
Percutaneous transcatheter implantation of an aortic valve prosthesis for calcific aortic stenosis. (springer.com)
Transapical aortic valve implantation: step by step. (springer.com)
Minimally invasive transapical beating heart aortic valve implantation-proof of concept. (springer.com)
Astarci P, El Khoury G, David G, Kefer J, Renkin J, Vanoverschelde J-L. "Ring Pledget": a new concept for secure apex closure during transapical aortic valve implantation. (springer.com)
Optimal pain management after aortic valve implantation: an opportunity to improve outcomes after transapical access in the future? (bmj.com)
The Biomedical Engineering Research Group (BERG) at the University of Stellenbosch, South Africa is involved in research regarding stented aortic valves for percutaneous implantation. (mscsoftware.com)
Valve implantation resulted in significant improvement of patients' symptoms. (nih.gov)
percutaneous aortic valve replacement, which allows the implantation of valves using a catheter without open heart surgery is still being evaluated in clinical trials and is appearing to be promising in patients who are at high risk to undergo open heart surgery. (bionity.com)
A new study has found that in patients with failed bioprosthetic aortic valves who underwent transcatheter valve-in-valve implantation, the survival rate was only 83 percent. (medindia.net)
Owing to a considerable shift toward bioprosthesis implantation, it is expected that there will be an increase in the number of patients with degeneration of these types of valves. (medindia.net)
Danny Dvir, M.D., of St. Paul's Hospital, Vancouver, Canada, and colleagues evaluated survival of 459 patients after transcatheter valve-in-valve implantation inside failed surgical bioprosthetic valves using a multinational registry. (medindia.net)
Thorough assessment of candidates for valve-in-valve implantation is a key step to obtain optimal results. (medindia.net)
INTERVENTIONS: Subjects randomized to TAVI will undergo percutaneous retrograde trans-femoral or trans-subclavian aortic valve implantation with the Medtronic CoreValve(TM) self-expandable bio-prosthesis. (clinicaltrials.gov)
Before implantation a balloon dilatation of the aortic annulus will be performed. (clinicaltrials.gov)
The absence of a rigid sewing ring and struts makes these valves pliable, and distortion at implantation can result in valve dysfunction. (biomedsearch.com)
Because the anatomy and implantation techniques of stentless tissue valves are unlike those of mechanical and stented tissue valves, their echocardiographic appearance is unique on both intraoperative and subsequent transthoracic and transesophageal echocardiography. (biomedsearch.com)

Aortic valve replacement is a surgical procedure in which a patient's aortic valve is replaced by a different valve. (wikipedia.org)
The aortic valve can be affected by a range of diseases and require aortic valve replacement. (wikipedia.org)
Aortic valve replacement traditionally required open heart surgery . (wikipedia.org)
Another procedure for aortic valve replacement is the Ross procedure (after Donald Ross ) or pulmonary autograft . (wikipedia.org)
The typical method of treatment is through surgery such as aortic valve reconstruction surgery (AVRS) and aortic valve replacement , usually with a synthetic valve. (wikipedia.org)
If you have symptoms, your doctor will likely recommend a valve replacement. (webmd.com)
Valve replacement is typically done during open-heart surgery. (webmd.com)
While the root replacement holds up over time, prosthetic valves have substantial implications for the growing child. (hopkinsmedicine.org)
To get around these risks, Vricella offers young patients a valve-sparing approach, in which he replaces the aortic root and then reimplants the patient's existing valve, reducing the need for valve replacement down the road and long-term anticoagulation therapy. (hopkinsmedicine.org)
Cribier A, Savin T, Saoudi N et al (1986) Percutaneous transluminal valvuloplasty of acquired aortic stenosis in elderly patients: an alternative to valve replacement? (springer.com)
For both conditions, the most definitive treatment involves surgical replacement of the valve with a prosthetic valve. (hopkinsmedicine.org)
Experimental and clinical research has shown that repair of the mitral valve is preferable to its replacement largely because native mitral valve is an intimately associated with the structure of the left ventricle. (hopkinsmedicine.org)
In cases when repair of the mitral valve cannot be performed successfully, Mitral valve replacement is another option. (hopkinsmedicine.org)
Mitral valve replacement involves removing much of the native mitral valve tissues and replacing it with an artificial valve consisting of animal and/or manufactured components. (hopkinsmedicine.org)
The subject invention relates to a valve replacement system together with methods of preparation and use, are provided for endovascular replacement of a heart valve in a host. (google.co.uk)
The valve replacement system includes up to five components: (1) a prosthetic valve device, (2) a valve introducer device, (3). (google.co.uk)
The system provides for endovascular removal of a malfunctioning valve and subsequent replacement with a permanent prosthetic heart valve. (google.co.uk)
The replacement valve is passed into the blood vessel or the heart and moved up to the aortic valve. (medlineplus.gov)
I had aortic valve replacement on 5 Feb 99, with a 5.2 cm aneurysm removed as well. (medhelp.org)
If she has a valve replacement at now, she will almost certainly need a repeat surgery at some future date, assuming that she lives a long, healthy life. (medhelp.org)
I had an aortic valve replacement last August a successful cardioversion in December and was taken off coumadin (it's a tissue valve) and all other heart medication (although I take 100mg orudis daily) in February but my heart arrhthmia has recrudesced in the last week or so. (medhelp.org)
Indications for aortic valve replacement, surgical aortic valve replacement, estimating the risk of aortic valve surgery, medical therapy of symptomatic AS, and percutaneous aortic valvuloplasty are discussed separately. (uptodate.com)
See 'Indications for valve replacement in aortic stenosis in adults' and 'Choice of prosthetic heart valve for surgical replacement' and 'Estimating the mortality risk of valvular surgery' and 'Medical management of symptomatic aortic stenosis' and 'Percutaneous balloon aortic valvotomy' . (uptodate.com)
In a biological valve replacement, a biological or tissue valve replaces the damaged valve. (mayoclinic.org)
In aortic valve replacement, your surgeon removes the damaged valve and replaces it with a mechanical valve or a valve made from cow, pig or human heart tissue (biological tissue valve). (mayoclinic.org)
Another type of biological tissue valve replacement that uses your own pulmonary valve is sometimes possible. (mayoclinic.org)
Comedian Robin Williams, 57, needs aortic valve replacement surgery. (emaxhealth.com)
There are two types of replacement valves for the aortic valve - mechanical or biological. (emaxhealth.com)
After successful aortic valve replacement, patients can expect to return to their preoperative condition or better. (emaxhealth.com)
A device for replacement of a bioprosthetic valve having an annulus ( 104 ) and one or more leaflets ( 105 ), the device having an outer housing ( 106 ) and an inner shaft ( 108 ) with a distal end ( 110 ). (freepatentsonline.com)
a bioprosthetic replacement valve having a valve frame and a skirt operatively engaged to said valve frame, said bioprosthetic replacement valve trapped between said inner shaft and said outer housing in said first position of said outer housing. (freepatentsonline.com)
A replacement valve is inserted through the catheter and guided to your heart. (mayoclinic.org)
You have an intermediate or high risk of complications from surgical aortic valve replacement. (mayoclinic.org)
Kidney and lung disease can increase your risk of complications during surgical aortic valve replacement. (mayoclinic.org)
13,14 Even after valve replacement, surgery for a bicuspid valve is a strong risk factor for subsequent aortic dissection. (ahajournals.org)
These children may eventually require valve repair or replacement, the latter group divided among the allograft, the autograft (Ross procedure), and the mechanical valve. (ahajournals.org)
Rodríguez-Caulo and colleagues report a retrospective multicenter study on almost 1,500 patients aged 50-65 who underwent aortic valve replacement with mechanical or biological prosthesis. (ctsnet.org)
Problems with a replacement (artificial) aortic valve . (rexhealth.com)
Inside the catheter is a folded replacement valve, which your doctor will implant securely within the old valve. (nih.gov)
Your doctor usually guides a tube with the replacement valve through a blood vessel in your groin or thigh, called the femoral artery. (nih.gov)
Replacement aortic heart leaflets and method of making the same. (freepatentsonline.com)
The replacement aortic heart leaflets of the present invention include first and second segments. (freepatentsonline.com)
In another aspect of the invention, a standard set of replacement aortic leaflets is described. (freepatentsonline.com)
Methods are provided to provide replacement aortic leaflets based on traced outlines obtained from a surgically opened aortic ring. (freepatentsonline.com)
We report an unusual case of Gram-negative mediastinitis following aortic valve replacement via median sternotomy. (hindawi.com)
Postoperative development of aortic pseudoaneurysms is commonly encountered at sites of aortic wall disruption with aortotomy sites being the most commonly implicated following aortic valve replacement. (hindawi.com)
She was subsequently diagnosed with critical aortic valve stenosis following transthoracic echocardiography and underwent an urgent aortic valve replacement. (hindawi.com)
At the UPMC Heart and Vascular Institute , we offer the full range of treatments for aortic stenosis including surgical and minimally invasive valve replacement. (upmc.com)
Many people regain quality of life - and enjoy longer lives - after having an aortic valve replacement. (sutterhealth.org)
Using a catheter that goes through an artery, the doctor inserts a collapsible replacement valve into your body's own aortic valve. (sutterhealth.org)
During traditional surgical aortic valve replacement, patients are placed under general anesthesia. (sutterhealth.org)
Open-heart valve replacement surgery takes about three to five hours. (sutterhealth.org)
Open-heart valve replacement surgery is often suggested for people who are in good physical health and strong enough to heal well after surgery. (sutterhealth.org)
Your doctor will then thread a replacement valve through the catheter to access your heart and implant the new valve. (orlandohealth.com)
The replacement valve is placed inside the patient's natural aortic valve where it expands and pushes the faulty valve aside. (ohsu.edu)
This heart valve replacement is minimally invasive which means a majority of patients will experience faster recovery times than traditional open-heart valve replacement. (ohsu.edu)
Sutureless perceval aortic valve replacement: results of two European centers. (nih.gov)
We report the midterm results of a prospective, multicenter clinical study evaluating the safety and efficacy of this stented bioprosthesis in patients undergoing aortic valve replacement with or without concomitant procedures. (nih.gov)
Overall, these data confirm the safety and utility of the Perceval bioprosthesis aortic valve replacement for high-risk patients. (nih.gov)
High-risk patients undergoing aortic valve replacement (AVR) experience less morbidity and mortality at the hospitals that perform the most procedures, a population-based study reported. (medpagetoday.com)
Patel H, et al "Aortic valve replacement: Using a statewide cardiac surgical database identifies a procedural volume hinge point" Ann Thorac Surg 2013;96:1560-1566. (medpagetoday.com)
Their findings appearing in the New England Journal of Medicine, fly in the face of an earlier study by Scognamiglio and colleagues that showed that nifedipine (compared with digoxin) delayed the need for aortic valve replacement and continued to provide benefits for years after valve-replacement. (medpagetoday.com)
Forty-one patients required aortic valve replacement during follow-up: 12 (39%) in the control group, 16 (50%) in the Vasotec group and 13 (41%) in the nifedipine group. (medpagetoday.com)
Of the patients requiring valve replacement, seven were symptomatic (two in the control group, two in the Vasotec group, and three in the nifedipine group). (medpagetoday.com)
Mean time to valve replacement was 4.2 + 2.8 years in the Vasotec group, 5.4 + 2.3 years for the nifedipine patients, and 5.4 + 1.9 years in the control group. (medpagetoday.com)
Among patients who underwent valve replacement, at one year the left ventricular end-diastolic diameter and end-systolic diameter had decreased to a similar degree in each of the three groups, and all patients had a normal ejection fraction. (medpagetoday.com)
The device is easily sized and implanted, making valve repair instead of replacement an option for a broader group of patients. (prnewswire.com)
Aortic valve replacement currently requires open heart surgery. (bionity.com)
When a tissue valve wears out and needs replacement, the person must undergo another valve replacement surgery. (bionity.com)
For this reason, younger patients are often recommended mechanical valves to prevent the increased risk (and inconvenience) of another valve replacement. (bionity.com)
Aortic valve replacement is most frequently done through a median sternotomy , meaning the chestbone is sawed in half. (bionity.com)
Immediately after aortic valve replacement, the patient will frequently stay in a cardiac surgery intensive care unit for 12-36 hours. (bionity.com)
Recovery from aortic valve replacement will take 1-3 months if the patient is in good health. (bionity.com)
Valve replacement can be done with an open-heart surgery or a minimally invasive procedure. (adventisthealthcare.com)
Next, a catheter delivers the replacement valve via the guidewire. (sutterhealth.org)
These people typically need an aortic valve replacement procedure. (rexhealth.com)
Over time, the valve can get narrow again, so another procedure or valve replacement might be done. (rexhealth.com)
There were no differences in effect for mean pressure gradient, valve area, freedom from valve replacement and death from cardiovascular cause in the statin group when compared with the placebo group. (cochrane.org)
The finding of spontaneous cerebral CE is a very strong argument in favour of surgical valve replacement in these patients. (nih.gov)
Subjects randomized to SAVR will undergo conventional surgical aortic valve replacement with a bio-prosthesis on cardiopulmonary bypass in normothermia with cold cardioplegia cardiac arrest. (clinicaltrials.gov)
What is the recovery time for aortic valve replacement? (reference.com)
The recovery time for aortic valve replacement surgery is several weeks, and those with strenuous or physical jobs may need up to 12 weeks to recover enough to work, according to WebMD. (reference.com)
Replacement of the aortic valve is done by replacing the native valve with a prosthetic valve. (wikipedia.org)
The timing of valve replacement surgery might depend on how likely it is that your valve disease will get worse. (cigna.com)
If your condition has been progressing slowly, you may be able to wait a little longer before having a valve replacement. (cigna.com)
Valve replacement surgery has a high rate of success and a low risk of causing other problems if you are otherwise healthy. (cigna.com)
A need for another replacement valve. (cigna.com)
What is robotic-assisted aortic valve replacement? (rochester.edu)
Robotic-assisted aortic valve replacement is a type of minimally-invasive surgery. (rochester.edu)
Not everyone is a candidate for robotic-assited aortic valve replacement.Surgeons do this surgery while you are asleep under general anesthesia. (rochester.edu)
Why might I need robotic-assisted aortic valve replacement? (rochester.edu)
If you need an aortic valve replaced, talk with your healthcare provider about whether robotic-assisted aortic valve replacement might be right for you. (rochester.edu)
How do I get ready for robotic-assisted aortic valve replacement? (rochester.edu)
Freedom from valve replacement at 1, 5 and 10 years was 96%, 91% and 87%, respectively. (nih.gov)
We remain confident about the potential of percutaneous heart valve therapies, which offer hope to thousands of patients worldwide who are not good candidates for conventional open-heart valve replacement surgery and face limited options," Rowe said. (medgadget.com)
In the embryonic days of open-heart surgery, Starr and Carpentier opened up the entire field of valve replacement. (laskerfoundation.org)
This practice allowed him to evaluate valve-replacement outcomes and seek solutions to clinical problems. (laskerfoundation.org)
Prior to the introduction of the Starr-Edwards valve, no human with a valve replacement had survived longer than three months. (laskerfoundation.org)
As of 2004, four live patients had replacement valves that had been implanted at least 40 years earlier. (laskerfoundation.org)
Individuals under 60 years old undergo valve-replacement surgery primarily for congenital, rheumatic, and degenerative heart disease. (laskerfoundation.org)
The procedure helped this individual and others, but the operation did not constitute a true valve replacement because Hufnagel was adding rather than replacing a valve. (laskerfoundation.org)
In high-risk patients, TAVI has shown non-inferiority compared to surgical aortic valve replacement. (escardio.org)
The aim of this unique registry initiated by cardiologists and heart surgeons together is to evaluate catheter-based procedures in comparison to surgical aortic valve replacement. (escardio.org)
Mechanical - This is an aortic valve replacement made of metal. (mainlinehealth.org)
Mini AVR - There are two types of mini aortic valve replacement surgeries: mini sternotomy and mini thoracotomy. (mainlinehealth.org)
You may remember from school that the heart has four valves, two of which rarely cause trouble (the pulmonary and the tricuspid), and two of which are more frequently in need of replacement (the mitral and the aortic). (everydayhealth.com)
If you have aortic valve disease and need a transplant, console yourself in knowing that, after the procedure, you'll likely be living a long, happy life as you motor on down the road with a top-notch replacement valve in your tuned-up engine. (howstuffworks.com)
Aortic valve replacement means that a patient's aortic valve is replaced by a different valve. (wikidoc.org)
The risk at reoperation is much more than a reoperation for a second aortic valve replacement. (bestcardiachospitals.com)
Surgical aortic valve replacement has been the customary mode of treatment for aortic stenosis for many years. (apollohospitals.com)
Typically, older patients cannot have conventional valve replacement surgery due to high risk. (apollohospitals.com)
A new study, however, has found a new treatment for aortic stenosis in the very elderly 85 years and older that is an effective alternative to surgical aortic valve replacement (AVR). (seniorjournal.com)
Aortic valve replacement is an open-heart surgery. (epnet.com)
Aortic valve replacement is done when the aortic valve is not working properly. (epnet.com)
Aortic valve replacement is done with general anesthesia . (epnet.com)
Valve replacement surgery is high-risk for people who have a failing left ventricle and who have had a heart attack. (lmh.org)
This patient needed an aortic valve replacement, but was not a surgical candidate due to history of three open heart surgeries including an arterial switch operation (aso) for treatment of transposition of great arteries (tga). (fda.gov)

When the pressure in the left ventricle decreases, the aortic pressure forces the aortic valve to close. (wikipedia.org)
With each heartbeat, some of the blood leaks back (regurgitates) through the aortic valve into the left ventricle. (rexhealth.com)
You will get further tests, like an echocardiogram to confirm the diagnosis, to show how much the valve is leaking, and to see how well the left ventricle is working. (rexhealth.com)
In a normal heart, when the left ventricle squeezes, blood flows out of it and the flaps of the aortic valve open to allow blood to flow through. (upmc.com)
One of the valves is the aortic valve that controls the flow of blood from the left ventricle chamber to the body. (cochrane.org)
During systole, the valve opens allowing oxygenated blood to leave the left ventricle and enter the bloodstream, explains the University of Minnesota Department of Surgery. (reference.com)
During diastole, the valve closes preventing backflow into the left ventricle. (reference.com)
Closure of the aortic valve permits maintaining high pressures in the systemic circulation while reducing pressure in the left ventricle to permit blood flow from the lungs to fill the left ventricle. (wikipedia.org)
The aortic valve opens as oxygen-rich blood is pumped out of the left ventricle, and closes as the left ventricle fills with blood. (medmovie.com)
AS is a condition in which the valve that opens and closes when blood is pumped out of the left ventricle becomes narrowed and stiff due to calcium building up. (eurekalert.org)
AR occurs when the valve doesn't close properly, allowing some blood to leak back into the left ventricle. (eurekalert.org)
The urgency of the situation will depend on the acuity of the aortic valve disease and the ability of the patient's left ventricle to tolerate the disorder. (oncologynurseadvisor.com)
However, there was not much calcification for the valve to hold on to and it embolized into the left ventricle. (fda.gov)
During deployment, both valves embolized to the left ventricle. (fda.gov)

In excess of 50,000 TAVI procedures have been performed to date using the Edwards SAPIEN or Medtronic CoreValve transcatheter aortic valves. (springer.com)
The indication for valve intervention (SAVR or TAVI) and choice of therapy based upon potential risks and benefits of treatment options should be discussed at a multidisciplinary heart team meeting. (uptodate.com)
Comprehensive computed tomography angiography to assess aortic annulus geometry and peripheral access is now considered the standard of care in assessing TAVI candidates. (uptodate.com)
TAVI could potentially be an attractive minimally invasive treatment also for patients with moderate and low surgical risk, but no comparison has been made with the standard surgical treatment for aortic valve stenosis. (clinicaltrials.gov)
Here reviewed for you, is the upcoming evidence for TAVI in symptomatic aortic stenosis. (escardio.org)
The GARY registry is a nationwide complete survey of patients with aortic valve stenosis undergoing invasive procedures including surgical (AVR), catheter-based (TAVI) transfemoral, catheter-based (TAVI) transapical procedures, and valvuloplasty. (escardio.org)
With the introduction of the CoreValve Evolut valve, Medtronic can now treat the broadest range of TAVI patient valve sizes (annulus diameters from 18mm to 29mm). (medgadget.com)

The aortic valve normally has three cusps or leaflets, although in 1-2% of the population it is found to congenitally have two leaflets . (wikipedia.org)
Stenosis can mean that the leaflets or cusps of your valve have thickened or scarred and don't open as well as they should. (webmd.com)
Aortic stenosis is a condition whereby the leaflets of the aortic valve become abnormally rigid such that they do not open fully, causing narrowing of the valve. (hopkinsmedicine.org)
Aortic stenosis is most often caused by degeneration with age whereby calcium is deposited on the valve leaflets rendering them stiff. (hopkinsmedicine.org)
Congenital malformation of the valve where by two of the three leaflets are fused into one, known as a bicuspid aortic valve, predisposes the valve to early calcific degeneration. (hopkinsmedicine.org)
For unknown reasons, the body deposits calcium on the valve leaflets. (emaxhealth.com)
This calcium hardens the valve which restricts or limits the motion of the valve leaflets. (emaxhealth.com)
The normal aortic valve consists of three thin and pliable valve leaflets. (cincinnatichildrens.org)
The most common abnormality occurs when the aortic valve has only two (instead of three) leaflets. (cincinnatichildrens.org)
Often the valve leaflets are thickened and less pliable than normal, and the lines of separation between them (or "commissures") are fused together to a variable degree. (cincinnatichildrens.org)
7. The bioprosthetic valve of claim 6, wherein said valve further comprises a plurality of leaflets. (freepatentsonline.com)
These include abnormalities of the aortic valve leaflets and pathologies of the proximal aortic root. (medscape.com)
On echocardiography, aortic valve anatomy can be reliably determined in a short-axis view, although care is needed to visualize the opening of all 3 leaflets in systole. (ahajournals.org)
These stiff, fused, thickened, inflexible valve leaflets lead to the narrowing of the aortic valve, which limits the blood flow. (clevelandclinic.org)
Aortic valve stenosis progresses when calcium is deposited on the valve leaflets, further limiting their mobility. (clevelandclinic.org)
Stenosis can occur in patients with either a tricuspid (3 leaflets) or a bicuspid (2 leaflets) aortic valve. (clevelandclinic.org)
Instead of the normal three leaflets or cusps, the bicuspid aortic valve has only two. (clevelandclinic.org)
The valve itself is not infected in rheumatic fever, but antibodies developed by the body to fight infection react with the heart valves, causing stiffening and fusion of the leaflets of the aortic valve. (clevelandclinic.org)
In many patients, the aortic valve leaflets degenerate and become calcified with time. (clevelandclinic.org)
Your aortic valve has three flaps, called leaflets, which are connected to a ring called the annulus. (upmc.com)
A Normal aortic valve has three thin leaflets called cusps (tricuspid). (medindia.net)
You can see the three leaflets on this closed tricuspid valve. (howstuffworks.com)
Your aortic valve normally has three snugly fitting, triangular leaflets (sometimes called cusps or flaps) attached to a ring of tissue called the annulus . (howstuffworks.com)
Aging and calcium buildup cause the leaflets of the valve to thicken and harden, preventing the valve from opening properly. (adventisthealthcare.com)
When deployed, the new valve pushes the leaflets of the old valve out of the way and begins working right away. (sutterhealth.org)
The Edwards SAPIEN 3 transcatheter heart valve, available in four sizes, features three tissue leaflets made from cow tissue. (sutterhealth.org)
The valve leaflets and the outer wrap are made from pig heart tissue. (sutterhealth.org)
Young people typically have the condition because they were born with a bicuspid valve, which is an aortic valve that has two leaflets instead of three. (rexhealth.com)
The term 'Semilunar" refers to an approximate half-moon shape of the valve leaflets. (wikipedia.org)
As the blood passes through the normal valve its three leaflets flatten out against the walls allowing a free unrestricted flow. (everydayhealth.com)
In the case of Mr. Williams it is possible that he was born with an aortic valve that has two leaflets instead of the normal three, predisposing him to calcification at an earlier age (this is speculation on my part since the details of his case haven't been revealed). (everydayhealth.com)
Sometimes, doctors can open a stenotic valve by inserting a catheter with a tiny balloon into the body, pushing it through a vein to the aortic valve and then expanding the balloon, knocking the leaflets fully apart. (howstuffworks.com)
Your heart's mitral valve, also known as a bicuspid valve, has two leaflets, but the other valves normally have three. (howstuffworks.com)
Valve leaflets direct the flow of blood out of your heart - just like a natural valve would. (rochester.edu)
This results in stiff valve leaflets that don't move easily or open fully. (apollohospitals.com)
Non-Destructive Reflectance Mapping of Collagen Fiber Alignment in Heart Valve Leaflets. (annals.org)
The calcification is more towards the base of the aortic leaflets and the commisures are free. (hubpages.com)
There are multiple patient and procedural factors that alone or in combination can cause or contribute to ventricular embolization, including improper positioning prior to deployment, poor image intensifier angle, poor coaxial alignment of the valve/delivery system, a narrow, calcified sinotubular junction, minimally or bulky/severely calcified aortic leaflets, rapid deployment, release of stored tension during deployment, and movement of the delivery system by the operator. (fda.gov)

The Johns Hopkins Children's Center is well-positioned to treat these young patients at risk of aortic rupture, concludes Vricella, pointing to resources like the Broccoli Center for Aortic Diseases, the Johns Hopkins Comprehensive Marfan Center, and renowned faculty physicians, like geneticist Hal Dietz , who first identified the genes for Marfan and Loeys-Dietz syndromes. (hopkinsmedicine.org)
There is also an increased risk of aortic dissection. (mayoclinic.org)
these patients are at increased risk of aortic aneurysm and dissection. (ahajournals.org)
11,12 The risk of aortic dissection in patients with a bicuspid valve is 5 to 9 times higher than in the general population, although some investigators hypothesize that this increased risk is limited to a subset of bicuspid valve patients. (ahajournals.org)

Congenitally bicuspid aortic valves: a surgical pathology study of 542 cases (1991 through 1996) and a literature review of 2,715 additional cases. (medscape.com)
Dear Tam, You are correct: bicuspid aortic valve (BAV) occurs in males, with a ratio of about 3:1, based on surgical and echocardiographic studies. (medhelp.org)
A patient will require preventative or prophylactic antibiotics whenever having dental work, and should always tell a doctor about their valve surgery before any surgical procedure. (emaxhealth.com)
This information will help you understand the conditions that may affect the aortic valve and why surgical treatment may be needed to treat your condition. (clevelandclinic.org)
The CVI's Structural Heart Center offers a wide variety of surgical, nonsurgical and hybrid procedures to treat aortic valve disease. (bidmc.org)
Surgical aortic valve replacements increasingly use bioprosthesis (composed of biological tissue) implants rather than mechanical valves. (medindia.net)
Short- and mid-term results with transcatheter valve prostheses are promising in high-risk surgical patients, but long-term results are lacking. (clinicaltrials.gov)

Patients with bicuspid aortic valve are at increased risk for infective endocarditis. (medscape.com)
Damage to your heart valve from infection ( endocarditis ). (medlineplus.gov)
Infective endocarditis is a bacterial infection of the valve, which is caused when bacteria enter your blood stream from the site of a remote infection and attach it to the surface of your heart valves. (clevelandclinic.org)
Aortic valve endocarditis , when your aortic valve becomes infected. (bidmc.org)
Symptoms of aortic valve endocarditis may also include flu-like symptoms and blood in the urine. (bidmc.org)
2) At present, this triad is known as Austrian syndrome, in honor of Robert Austrian, who described eight cases of pneumococcal endocarditis complicated by aortic valve rupture and associated with meningitis. (thefreedictionary.com)
Bacillus licheniformis prosthetic aortic valve endocarditis. (asm.org)
The intraoperative evidence of an aortic annular disruption and of a subannular abscess led to the hypothesis that an endocarditis process was involved. (asm.org)
An allograft may be used in cases of endocarditis , when the aortic root is infected. (mainlinehealth.org)
AR may be the result of annular dilatation (aneurysms, dissection) or abnormal leaflet motion (calcification, rheumatic disease, bicuspid valves, endocarditis). (oncologynurseadvisor.com)

The heart has four valves and the other two are the mitral and the tricuspid valves. (wikipedia.org)
In many cases, the mitral valve can be repaired by reconstructing the native valve tissues to restore normal valvular structure and function. (hopkinsmedicine.org)
In fact, the mitral valve is the most commonly repaired heart valve. (hopkinsmedicine.org)
Two ( tricuspid and mitral) valves control flow of blood within the heart, between atrial and ventral chambers. (emaxhealth.com)
There are four valves in your heart including the mitral, tricuspid, aortic and pulmonic valves. (clevelandclinic.org)
On the left side of your heart, this specific gateway is called the mitral valve , and on the right, the tricuspid valve . (howstuffworks.com)
the other two are the mitral and the tricuspid valves. (wikipedia.org)
Blood is pumped through the four chambers with the help of four heart valves - the aortic valve, the pulmonic valve, the mitral valve, and the tricuspid valve. (apollohospitals.com)
Mitral valve prolapse - when one of the valves, the mitral valve, has 'floppy' flaps and doesn't close tightly. (seniorjournal.com)
It was felt that during the attempts to pull the sapien 3 valves back up, the mitral valve apparatus may have been inadvertently injured (torn), contributing to the patient¿s decompensation and subsequent demise. (fda.gov)

A pulmonary homograft (a pulmonary valve taken from a cadaver) or a valvular prothesis is then used to replace the patient's own pulmonary valve. (wikipedia.org)
Quadricuspid aortic valves are very rare cardiac valvular anomalies with a prevalence of 0.013% to 0.043% of cardiac cases [4] and a prevalence of 1 in 6000 patients that undertake aortic valve surgery. (wikipedia.org)
The most common valvular problem in old age is aortic valve disease. (healthcentral.com)
Insights into prognosis of valvular aortic stenosis. (springer.com)
The evolving epidemiology of valvular aortic stenosis. (bmj.com)
The stages of aortic stenosis are classified according to patient symptoms, valve hemodynamics, valve anatomy, and the hemodynamic consequences of the aortic stenosis (see Valvular aortic stenosis stage progression ). (nursingcenter.com)
Aortic valve stenosis is the most common type of valvular heart disease in the USA and Europe. (cochrane.org)
Though it was thought earlier that rheumatic fever was the commonest cause of aortic valvular stenosis, current evidences is that stenosis developing in congenital bicuspid aortic valve is the most common cause. (hubpages.com)

Drobinski G, Lechat P, Metzger JP et al (1987) Results of percutaneous catheter valvuloplasty for calcified aortic stenosis in the elderly. (springer.com)
Serruys PW, Luijten HE, Beatt KJ et al (1988) Percutaneous balloon valvuloplasty for calcific aortic stenosis. (springer.com)
Block PC, Palacios IF (1988) Clinical and hemodynamic follow-up after percutaneous aortic valvuloplasty in the elderly. (springer.com)
This procedure is called percutaneous valvuloplasty and allows for a new valve to be placed in this spot. (medlineplus.gov)
Prevalence of significant peripheral artery disease in patients evaluated for percutaneous aortic valve insertion: preprocedural assessment with multidetector computed tomography. (springer.com)
Percutaneous aortic valve intervention in patients scheduled for noncardiac surgery: A Japanese multicenter study. (medindia.net)
We recently have completed a number of procedural refinements, including the development of a simpler and more direct retrograde delivery approach, which has led to more favorable clinical success rates and fewer complications," said Stanton J. Rowe, Edwards' corporate vice president, Percutaneous Valve Interventions. (medgadget.com)

There are two ways to replace the aortic valve: Open Heart Surgery and Minimally Invasive Surgery. (sutterhealth.org)
It is the most common reason people need surgery to replace the aortic valve. (empowher.com)
A minimally invasive surgery or a catheter procedure to replace the aortic valve may be an option for some people. (lmh.org)

The fourth dysplastic cusp is incapable of fully closing the aortic annulus , which causes a backflow of blood through the aortic valve. (wikipedia.org)
The resulting valve ring or annulus is then measured to select the size of the valve prosthetic. (hopkinsmedicine.org)
A series of sutures are then placed around the valve annulus and subsequently through the prosthetic valve. (hopkinsmedicine.org)
The valve is then lowered into the annulus and secured. (hopkinsmedicine.org)
v) a flexible annulus having a generally cylindrical inside surface and a generally cylindrical outside surface containing a series of mounting pins to fixate said prosthetic valve device at said situs. (google.co.uk)
wherein said valve may be introduced into the annulus of a previously installed bioprosthetic valve and secured thereto with said securing members. (freepatentsonline.com)
Midterm outcome of aortic valve neocuspidization for aortic valve stenosis with small annulus. (medindia.net)
Pathologically the infectious process was characterized by extensive necrosis of the aortic annulus, disruption of the aortic wall, and the formation of abscesses in the periaortic tissues. (ahajournals.org)
In two patients the prosthetic valve was partially detached from the annulus, whereas in the other it was totally dislodged and impacted in the aortic arch shortly before death. (ahajournals.org)
Annuloplasty is a procedure to rebuild the frame of a heart valve, called an annulus. (prnewswire.com)
Common causes of aortic stenosis include rheumatic fever , degenerative calcification, and congenital diseases such as unicuspid aortic valve, bicuspid aortic valve , tricuspid aortic valve with commissural fushion, quadricuspid aortic valve and hypoplastic aortic annulus. (wikidoc.org)
In bicuspid aortic valve disease the valve can be repaired by bringing it back to a tricuspid configuration which is the normal configuration and resuspending it back inthe aortic annulus. (bestcardiachospitals.com)
The valve was attempted to be pulled back to the annulus and a second 23mm sapien 3 valve was implanted. (fda.gov)
The valve was pulled partially back into the annulus with the delivery system, but it was not in optimal position and it was decided to do a valve-in-valve procedure. (fda.gov)
The aortic annulus diameter measured approximately 21 mm with mild calcification. (fda.gov)

It can also become necessary for the treatment of aortic aneurysm, or less frequently for congenital aortic stenosis. (wikipedia.org)
The progression of mild congenital aortic valve stenosis from childhood into adult life. (medscape.com)
The aortic valve may be abnormal at birth (typically a bicuspid congenital aortic valve) or become diseased over time, usually seen in older patients (acquired valve disease). (clevelandclinic.org)
Congenital aortic stenosis from a unicuspid, bicuspid, or even abnormal tricuspid valve may cause symptoms during childhood and necessitates rectification by adolescence. (medindia.net)
An aortic valve that started off too narrow from birth also can lead to stenosis (called congenital aortic valve disease ). (howstuffworks.com)
This is called congenital aortic valve disease. (epnet.com)

The Ross procedure involves going to surgery to have the aortic valve removed and replacing it with the patient's own pulmonary valve. (wikipedia.org)
Some young people or pregnant women may have another procedure called balloon valvuloplasty to enlarge the valve opening. (webmd.com)
Some people who cannot have open-heart surgery may have a minimally invasive procedure to replace the valve. (webmd.com)
1 ) a prosthetic valve device, ( 2 ) a valve introducer device, ( 3 ) an intraluminal procedure device, ( 4 ) a procedure device capsule, and ( 5 ) a tissue cutter. (google.co.uk)
This procedure should only be performed where emergency aortic valve surgery can be performed promptly. (medtronic.com)
About a month after the procedure, your doctor will test to check how well the valve is working and how well you are healing. (nih.gov)
The register will furthermore allow for the first time a comparison of various operative procedures, such as Ross procedure, David procedure and various mechanical or biological aortic valve implants. (clinicaltrials.gov)
Contact us today to discuss your options with OHSU's Complex Heart Valve team so they can help you determine what procedure is right for you. (ohsu.edu)
In a Ross procedure, the aortic valve is removed and replaced with the patient's own pulmonary valve. (bionity.com)
The current analysis highlights the need for meticulous evaluation of bioprosthesis mechanism of failure before attempting a valve-in-valve procedure," the authors write. (medindia.net)
Balloon valvuloplasty (also called valvulotomy or valvotomy) is a procedure that widens a heart valve that is narrowed. (rexhealth.com)
In most older adults, the valve becomes narrowed again (restenosis) within 6 to 12 months after this procedure. (rexhealth.com)
After a valvotomy procedure in a young person, the aortic valve is wider, but it is still not normal. (rexhealth.com)
Aortic valve-sparing David procedure has gained broad acceptance. (nih.gov)
Regardless of the underlying pathology, valve-sparing David I procedure has acceptable long-term results. (nih.gov)
In an era before the US Food and Drug Administration (FDA) regulated medical devices, Starr set up the infrastructure for conducting clinical trials on his valves, including an informed-consent procedure and long-term patient tracking. (laskerfoundation.org)
Those over 60 years old take advantage of the procedure primarily to correct valve degeneration. (laskerfoundation.org)
Surgeons sometimes could blindly use a finger through an incision in the chest to widen the valve opening, but if that procedure didn't work, no alternative existed. (laskerfoundation.org)
Now with news that former First Lady Barbara Bush has undergone open heart surgery to replace her defective valve and that comedian Robin Williams will soon have the same procedure, suddenly the aortic valve is front and center and on everyone's minds. (everydayhealth.com)
The "Ross Procedure" is an operation where we take the pulmonary valve of the child and use it to replace the diseased aortic valve. (bestcardiachospitals.com)
Ross procedure-In selected patients less than 50 years of age, another one of the patient's own heart valves, the pulmonic valve, may be removed from its original location and sewn in to take the place of the faulty aortic valve. (epnet.com)

Aortic stenosis can also be caused by rheumatic fever and degenerative calcification . (wikipedia.org)
The significance of aortic valve calcification in patients with bicuspid aortic valve disease. (medscape.com)
These processes are caused by congenital malformations or acquired diseases including infection, degeneration and calcification, aortic aneurysms, tumors, and radiation. (hopkinsmedicine.org)
The most common cause of aortic valve disease requiring surgery is called "senile aortic calcification. (emaxhealth.com)
A previously normal tricuspid aortic valve can also develop thickening and calcification. (medindia.net)
Inadequate opening of the aortic valve, often through calcification, results in higher flow velocities through the valve and larger pressure gradients. (wikipedia.org)
Above the age of 70 years, degenerative calcification, bicuspid valves and rheumatic valvulities are the frequent causes. (hubpages.com)
The bicuspid valve is not inherently stenotic, because of the abnormal opening and closure of the valve cusps, degenerative changes occur which lead on to calcification. (hubpages.com)
Subsequently hemodynamic stress on this abnormal valve produces further degenerative changes and consequent calcification. (hubpages.com)
However, calcification occurs much later than in the case of congenital bicuspid aortic valve. (hubpages.com)
This results from the degeneration and calcification of the tricuspid aortic valve. (hubpages.com)
AS may be the result of a congenitally bicuspid aortic valve, senile calcification of a tricuspid aortic valve, or rheumatic heart disease. (oncologynurseadvisor.com)
Stenosis in these patients is typically due to calcification of congenitally bicuspid valves, senile calcific degeneration of tricuspid aortic valves, or rheumatic heart disease. (oncologynurseadvisor.com)
Per the report, the sapien 3 valve embolization was thought to be related to the patient¿s mild annular calcification. (fda.gov)
E. Small, calcified stj, minimal leaflet calcification), bav may provide indication of potential balloon movement during valve deployment. (fda.gov)
Investigation results suggest/indicate the patient¿s mild annular calcification was a likely contributing factor for the sapien 3 valve embolization. (fda.gov)

The diagnosis of aortic stenosis is usually first suspected because a physician detects a heart murmur or click. (cincinnatichildrens.org)
Most patients with a bicuspid aortic valve are unaware of the diagnosis until late in life because symptoms and physical findings often are absent for many years. (ahajournals.org)
The diagnosis of aortic valve disease is made after your physician reviews your symptoms, performs a physical exam and listens for a murmur, and evaluates the results of your diagnostic tests. (clevelandclinic.org)
Diagnosis of aortic stenosis is contingent upon quantification of this gradient. (wikipedia.org)
Others have normal valves at birth but develop valve disease due to rheumatic fever - an inadequately treated strep infection that affects the heart, which, fortunately, is much less common today because of advances in the diagnosis and treatment of strep throat (and why it's important when treating strep to take the full course of the prescribed antibiotic even if symptoms have abated). (everydayhealth.com)
Phonocardiographic Diagnosis of Ball Variance in Aortic Valve Prostheses. (annals.org)

If you're 55 and you have an aneurysm, and your valve is not perfect, you can get a bioprosthesis and chances are it will be OK until you're 75," says pediatric cardiac surgeon Luca Vricella . (hopkinsmedicine.org)
Pham T, Martin C, Elefteriades J, Sun W. Biomechanical Characterization of Ascending Aortic Aneurysm with Concomitant Bicuspid Aortic Valve And Bovine Aortic Arch. (medscape.com)
The association of bicuspid aortic valve with aortic aneurysm and dissection suggests the possibility that a bicuspid valve, at least in some patients, is only the most identifiable manifestation of a systemic connective tissue disorder. (ahajournals.org)
but in older adults it is associated with thoracic aortic aneurysm or dissection in 20-30% of those with BAV. (clinicaltrials.gov)

The Journal of Heart Valve Disease, 13(4), 534-537. (wikipedia.org)
Bicuspid aortic valves in hearts with other congenital heart disease. (medscape.com)
Predictors of ascending aortic dilatation with bicuspid aortic valve: a wide spectrum of disease expression. (medscape.com)
The aortopathy of bicuspid aortic valve disease has distinctive patterns and usually involves the transverse aortic arch. (medscape.com)
Aortic Valve Disease entails damage to, and dysfunction of, the aortic valve, one of the four valves in the heart. (healthcentral.com)
Aortic valve disease can be congenital, result from infection, occur as a result of rheumatic heart disease, result from the processes of aging, or be of unknown origin. (healthcentral.com)
Most cases of aortic valve disease can be diagnosed by a physical examination, during which a characteristic heart murmur may be detected. (healthcentral.com)
Can aortic valve disease be detected early enough to eliminate the need for surgery? (healthcentral.com)
What is the difference between a heart attack and aortic valve disease? (healthcentral.com)
Also, if you've had rheumatic fever or you are dealing with ongoing kidney disease , you may have a greater chance of having a problem with your aortic valve. (webmd.com)
He has had to cancel his one-man comedy tour after doctors diagnosed the cause of his shortness of breath as aortic valve disease. (emaxhealth.com)
Aortic valve disease may be congenital (abnormal from birth) or acquired (comes with aging as with Bush and Williams). (emaxhealth.com)
It is the second most common cause of aortic disease that requires surgery. (emaxhealth.com)
Calcific aortic valve disease (CAVD), once thought to be a degenerative disease, is now recognized to be an active pathobiological process, with chronic inflammation emerging as a predominant, and possibly driving, factor. (hindawi.com)
The vast majority of "hemodynamically significant" aortic valve disease in infancy and young children results from aortic stenosis of the bicuspid valve. (ahajournals.org)
Aortic valve disease occurs when the aortic valve does not work correctly. (clevelandclinic.org)
Aortic valve degeneration from wear and tear is another cause of acquired aortic valve disease. (clevelandclinic.org)
How is aortic valve disease diagnosed? (clevelandclinic.org)
Aortic valve disease refers to damage to the aortic valve, causing it not to function properly. (bidmc.org)
Bicuspid aortic valve disease , a congenital defect affecting the aortic valve. (bidmc.org)
Symptoms may vary depending on the type of aortic valve disease you have, and some patients do not have any symptoms. (bidmc.org)
If you don't have any symptoms of aortic valve disease, or if your symptoms are mild, your doctor may simply monitor your condition on a regular basis, including having you undergo periodic echocardiograms. (bidmc.org)
Bicuspid and unicuspid aortic valves: Different phenotypes of the same disease? (rti.org)
METHODS: We investigated UAV and BAV patients at an early stage of disease included in GenTAC, a national registry of genetically related aortic aneurysms and associated cardiac conditions. (rti.org)
Over time or because of a congenital heart defect , you can develop aortic stenosis-a type of heart valve disease -which is narrowing of the aortic valve. (nih.gov)
Find out more about your heart valves and how to manage heart valve disease. (heart.org)
Aortic valve disease can cause symptoms such as weakness and fatigue, chest pain, shortness of breath, dizziness or fainting. (sutterhealth.org)
If this part malfunctions, as it does in aortic valve disease, your engine is in for a hard day's driving. (howstuffworks.com)
Since that time, Cleveland Clinic has become a world leader in the use of this specialized treatment, carefully evaluating patients with a team approach to make sure patients get the best treatment for their aortic valve disease. (clevelandclinic.org)
Aortic valve disease (AVD) is a life threatening condition that usually kills within two years. (thestar.com)
The average patient with aortic valve disease has a narrowed aortic valve, which puts them at tremendous risk. (thestar.com)
With aortic valve disease, the heart's flow is capped. (thestar.com)
Aortic valve stenosis is a disease characterised by the narrowing of this valve. (cochrane.org)
Aortic valve stenosis is considered similar to atherosclerotic disease and it is known to have a long asymptomatic period for several decades. (cochrane.org)
Aortic valve stenosis is considered similar to atherosclerotic disease. (cochrane.org)
Bicuspid aortic valve (BAV) disease is the most frequent congenital cardiac malformation, occurring in 0.5-1.2% of the US population. (clinicaltrials.gov)
Yet, we know little of the etiology, cellular events and modifiers of progression of BAV to calcific aortic valve disease and we still do not understand the genetic cause(s) of BAV despite evidence for its high heritability. (clinicaltrials.gov)
To identify the genetic causes of bicuspid aortic valve disease and its associated thoracic aortic disease. (clinicaltrials.gov)
The first specific aim is to identify the genetic causes of bicuspid aortic valve disease. (clinicaltrials.gov)
The second specific aim is to identify genetic and non-genetic factors to cause thoracic aortic disease in BAV patients. (clinicaltrials.gov)
In the congenital disease known as transposition of the great arteries, these two valves are reversed (the anterior valve is the aortic valve) and the origin of the coronaries still follows this "rule" that the origins are in the sinuses facing the pulmonary valve. (wikipedia.org)
Aortic valve disease can result from getting older. (rochester.edu)
Their research shows that the key to preventing aortic valve disease is keeping "bad" cholesterol or LDL low. (empowher.com)
Aortic valve disease affects approximately five million people in the United States. (empowher.com)
Researcher Dr. George Thanassoulis at RI-MUHC said that the study shows that people with high LDL are also at increased risk of developing aortic valve disease. (empowher.com)
This causes the opening of the valve to narrow, allowing less blood to flow through and causing aortic valve disease. (empowher.com)
This device has transformed life for people with serious valve disease, providing a remedy where none previously existed. (laskerfoundation.org)
Inflammation from this disease can thicken and narrow the heart valves - tissue flaps that open and allow blood to flow through the organ and then close to prevent leakage back. (laskerfoundation.org)
One of the reasons the right side valves are less often involved in disease is because the blood pressure on the right side of the heart is dramatically lower than that on the left. (everydayhealth.com)
Without serious symptoms, aortic valve disease may simply require an easygoing lifestyle -- due to the heart's limited ability to deliver oxygenated blood -- and regular cardiology exams. (howstuffworks.com)
The disease that commonly occur in the young that can be repaired are due to Bicuspid aortic valve and sometimes early pick up of rheumatic heart disease. (bestcardiachospitals.com)
The indications of this operation are children or young adults with aortic valve disease not amenable to repair and with small aortic roots. (bestcardiachospitals.com)
The ability to collect data over a long period of time, combined with the large number of patients, makes this the first study substantial enough to investigate the link between blood pressure and aortic valve disease and how it changes with age and with different blood pressure levels. (eurekalert.org)
Blood pressure should be considered as a major risk factor for aortic valve disease, much in the same way as we think of elevated blood pressure as a risk factor for atherosclerotic disease. (eurekalert.org)
We are the only center in the area that specializes in heart valve disease. (rochester.edu)
We have the widest range of treatment options for all forms of valve disease. (rochester.edu)
The UR Medicine Heart Valve Clinic provides the most comprehensive care in the region for structural heart disease - like aortic stenosis. (rochester.edu)
A complete team of people - from surgeons to cardiologists, to nurses, technicians and imaging specialists -who all specialize in the treatment of valve disease. (rochester.edu)
Patients with stenotic or regurgitant aortic valve disease appear to cleave multimers of Von Willebrand factor (HMW-multimer), presumably due to high-shear stresses and non-laminar flow. (bmj.com)
Valve problems can be present at birth or caused by infections, heart attacks, or heart disease or damage. (seniorjournal.com)
The main sign of heart valve disease is an unusual heartbeat sound called a heart murmur. (seniorjournal.com)
Heart tests can show if you have a heart valve disease. (seniorjournal.com)
Pure aortic stenosis is rare to develop in rheumatic heart disease. (hubpages.com)
This is called acquired aortic valve disease. (epnet.com)
These images can reveal problems with the functioning of your aortic valve and also determine whether your heart arteries are free from disease. (epnet.com)

The doctor will thread a thin tube called a catheter through the artery to your heart and aortic valve. (medlineplus.gov)
A small balloon on the end of the catheter will be expanded in your aortic valve. (medlineplus.gov)
The doctor will then guide a new aortic valve over the catheter and balloon and place it in your aortic valve. (medlineplus.gov)
Moulopoulos SD, Anthopoulos L, Stamatelopoulos S et al (1971) Catheter-mounted aortic valves. (springer.com)
The surgeon then sends a catheter with an attached valve and detaches the valve to take the place of the damaged aortic valve. (medlineplus.gov)
As you may be aware, there are some centers that are performing in utero transcatheter balloon valvuloplasty procedures, in which a catheter is placed through the uterus, through the fetal chest wall, and into the heart across the valve. (medhelp.org)
A guidewire fed through the catheter goes up to the heart and through the diseased aortic valve. (sutterhealth.org)
Edwards SAPIEN prosthesis is an aortic valve device inserted transfemorally (femoral artery) or transapically (apex of the heart) with a catheter. (patientslikeme.com)
Rather than doing surgery and opening your chest, we deliver the new valve with a catheter that we insert into an artery and thread to your heart. (uwhealth.org)
On the tip of the catheter is a balloon with the new valve placed over it. (uwhealth.org)
When the catheter reaches your aortic valve, doctors inflate the balloon. (uwhealth.org)
Once the valve is safely in place, we remove the catheter and close your incision. (uwhealth.org)
Research is being done now to develop valves that can be implanted using a catheter without open heart surgery . (wikidoc.org)
These revolutionary valves, constructed from a combination of metal mesh and animal tissue, are delivered via a thin wire (catheter) and expanded in place over the existing valve. (apollohospitals.com)
The valve is designed to be delivered to the heart via transfemoral, subclavian or direct aortic access using an 18Fr catheter. (medgadget.com)

If you're experiencing symptoms of Aortic Stenosis - which include a heart murmur, shortness of breath, chest pain, and/or lightheadedness - talk with your doctor about getting a referral to the UR Medicine Heart Valve Clinic. (rochester.edu)
The signs and symptoms of aortic stenosis include angina, dyspnea on exertion, and syncope. (oncologynurseadvisor.com)

[5] There are two basic types of artificial heart valve , mechanical valves and tissue valves. (wikipedia.org)
With the mechanical valve option, adds Vricella, patients have to be on life-long blood thinners, which increases their risk of stroke or bleeding. (hopkinsmedicine.org)
There are two major types of aortic valve prostheses: mechanical and tissue. (hopkinsmedicine.org)
Mechanical prosthetic valves have lifelong durability, however a blood thinning drug known as coumadin or warfarin must be taken for the rest of the patient's life to prevent blood clots from forming on the hinges of the valve. (hopkinsmedicine.org)
Mechanical valves last much longer than tissue valves, but require one to be on blood thinning medicine for life - this complicates issues such as pregnancy. (medhelp.org)
The advantage of a mechanical valve is their durability. (emaxhealth.com)
The main disadvantage is the tendency for blood clots to forms on mechanical valves. (emaxhealth.com)
Patients who have mechanical valves must take anticoagulants or "blood thinners" for the rest of their life. (emaxhealth.com)
Biologic valves are less durable than mechanical valves, but have less risk of blood clot formation. (emaxhealth.com)
Are We Implanting Too Few Mechanical Valves? (ctsnet.org)
Norman Briffa of the Sheffield Teaching Hospitals NHS Trust in the UK discusses the decision between mechanical and biological valves, focusing on patients between the ages of 50 and 70 years old. (ctsnet.org)
Heart Valve Problems: Should I Choose a Mechanical Valve or Tissue Valve to Replace My Heart Valve? (rexhealth.com)
Mechanical valves, made of carbon, which last much longer. (bidmc.org)
Mechanical valves are made of metal, and may last as long as 25 years. (sutterhealth.org)
However, patients with mechanical valves need to take blood-thinning medication such as warfarin for the rest of their lives. (sutterhealth.org)
Mechanical valves are designed to outlast the patient, and have typically been stress-tested to last several hundred years. (bionity.com)
Although mechanical valves are long-lasting and generally only one surgery is needed, there is an increased risk of blood clots forming with mechanical valves. (bionity.com)
As a result, mechanical valve recipients must generally take anti-coagulant drugs such as warfarin for the rest of their lives, which effectively makes them borderline hemophiliacs. (bionity.com)
The surgeon then removes the patient's diseased aortic valve and a mechanical or tissue valve is put in its place. (bionity.com)
If you have a mechanical valve, this risk is higher, so you will take an anticoagulant called warfarin (Coumadin). (cigna.com)
Your surgeon will replace your valve with a biological valve or a mechanical valve. (rochester.edu)
Mechanical valves are man-made. (rochester.edu)
The downside of biological valves is that they don't last as long as mechanical valves. (rochester.edu)
But people with mechanical valves need to take blood-thinning medicine for the rest of their life. (rochester.edu)
Mechanical valves also raise the risk of infection for the new valve. (rochester.edu)
Alain Carpentier then circumvented the predominant limitation of mechanical valves - a propensity to clot within blood vessels and the associated need to take blood thinners - by adapting animal valves for use in humans. (laskerfoundation.org)
Today, slightly more than half of all valves implanted are mechanical, but the proportion of tissue valves is growing rapidly. (laskerfoundation.org)
Hufnagel's achievement, however, demonstrated that a device in the circulation can force blood to flow in one direction only and the feat unlocked the possibility of placing mechanical valves in humans. (laskerfoundation.org)
People who have mechanical valve replacements must take blood thinners for the rest of their lives. (mainlinehealth.org)
For younger patients, a mechanical valve is often preferred, although it requires that the recipient be on anticoagulants (blood thinners) for life. (everydayhealth.com)
A mechanical artificial heart valve with a pivoting disc. (wikidoc.org)
Mechanical valves have good life but require anticoagulation and don't grow with the child which means the child requires a second operation for sure. (bestcardiachospitals.com)
The artificial valve might be mechanical (made of man-made substances). (lmh.org)
Emergent AVR for isolated AS is rare, and may be best seen in patients who have undergone previous AVR and have acute malfunction of the replaced valve (e.g., nonmobile mechanical valve leaflet). (oncologynurseadvisor.com)

Comprehensive assessment of a quadricuspid aortic valve and coronary arteries by multidetector cardiac CT. (wikipedia.org)
Morphologic aspects of cardiac valve dysfunction. (medscape.com)
If enough physical symptoms are present, cardiac catheterization may be necessary to better evaluate the valve and heart function. (healthcentral.com)
A more comprehensive antibiotic regimen for patients with prosthetic cardiac valves is suggested. (ahajournals.org)
Repairing a valve is always better than replacing a valve, and until now we have never had an aortic annuloplasty device for repair,' said Dr. Malaisrie, who is also an associate professor of surgery - cardiac surgery at Northwestern University Feinberg School of Medicine. (prnewswire.com)
A replaceable model of Cardiac Biological Valve Prosthesis. (wikidoc.org)

A normal aortic valve has three flaps, or cusps, that fit snugly together. (webmd.com)
Eric Horlick: A normal aortic valve is between four to five centimetres square and all of the blood that feeds the body passes through it. (thestar.com)

Quadricuspid Aortic Valve Revealed by Real-Time, 3-Dimensional Transesophageal Echocardiography. (wikipedia.org)
Preprocedural testing should include routine blood tests (including complete blood count, prothrombin time, activated partial thromboplastin time, electrolytes, blood urea nitrogen, and serum creatinine), electrocardiogram, echocardiography (and may require stress echocardiography if low gradient aortic stenosis is being assessed), and coronary angiography. (uptodate.com)
The gold standard diagnostic study for aortic stenosis is echocardiography. (nursingcenter.com)
Measurements that are taken during echocardiography is used for the calculation of the aortic valve area. (easycalculation.com)

The aortic valve normally has three cusps - a left, right and posterior cusp. (wikipedia.org)
In this condition, instead of three cusps, the aortic valve has two cusps. (wikipedia.org)
A quadricuspid aortic valve (QAV) is a rare congenital heart defect characterized by the presence of four cusps , instead of the usual three found normally in the aortic valve . (wikipedia.org)
[1] There is no correlation between the anatomy and functional status of the aortic cusps. (wikipedia.org)
Some people are born with an aortic valve that has one, two, or even four cusps. (webmd.com)
For our other readers, the aortic valve typically is trileaflet, or has 3 cusps. (medhelp.org)
Some people are born with an aortic valve that has two cusps (bicuspid aortic valve) instead of three. (mayoclinic.org)
After the aortotomy, a bicuspid aortic valve type 1 with fusion between the right and left coronary cusps was identified. (ctsnet.org)
About 1% of the population is born with a bicuspid aortic valve, i.e. with only two cusps in the valve. (medindia.net)
The aortic valve normally has three cusps however there is some discrepancy in their naming. (wikipedia.org)
The three cusps, when the valve is closed, contain a sinus called an aortic sinus or sinus of Valsalva. (wikipedia.org)
The aortic valve is located posterior to the pulmonary valve and the commissure where the anterior two cusps join together points toward the pulmonary valve. (wikipedia.org)
The most common congenital abnormality of the heart is the bicuspid aortic valve (fusion of two cusps together). (wikipedia.org)
The aortic valve has three cusps. (wikidoc.org)
These cusps are half moon shaped hence also called aortic semilunar valve. (wikidoc.org)
Active rheumatic endocardities of the aortic valve leads on to thickening of the valve cusps with fusion of both commisures or fusion of a single commisure. (hubpages.com)

It is one of the two semilunar valves of the heart, the other being the pulmonary valve . (wikipedia.org)
Video clip from the aortic valve in a living, beating pig heart. (wikipedia.org)
The closure of the aortic valve contributes the A 2 component of the second heart sound (S 2 ). (wikipedia.org)
Narrowing of the aortic valve is called aortic stenosis , limiting the blood that can leave the valve and increasing the force the heart has to use to pump the blood through the valve. (wikipedia.org)
The most common congenital abnormality of the heart is the bicuspid aortic valve . (wikipedia.org)
Tissue heart valves are usually made from animal tissues, either animal heart valve tissue or animal pericardial tissue. (wikipedia.org)
Stenosis prevents the valve from opening properly, forcing the heart to work harder to pump blood through the valve. (webmd.com)
Your heart can make up for aortic valve stenosis and the extra pressure for a long time. (webmd.com)
If you have mild or moderate aortic valve stenosis and you don't have symptoms, your doctor will see you regularly to check your heart. (webmd.com)
The aortic valve is one of four valves that control the flow of blood into and out of the heart. (healthcentral.com)
If the valve is abnormally narrow (aortic stenosis), the heart must work harder for a sufficient amount of blood to be pumped with each beat. (healthcentral.com)
The valve itself, however, may continue to function adequately for years, with nothing more than a heart murmur heard by the physician on examination with a stethoscope. (healthcentral.com)
A chest X-ray, an electrocardiogram (EKG, to determine whether the heart is enlarged), and an echocardiogram (ultrasound study of heart muscle and valves) also may be done. (healthcentral.com)
Tests show that changes in your aortic valve are beginning to seriously harm how well your heart works. (medlineplus.gov)
If untreated, these infections may spread to your heart or new heart valve. (medlineplus.gov)
You have four valves in your heart to help control all that blood flow. (webmd.com)
Your heart has four valves that open and close in a steady rhythm to circulate blood through your body when they are working right. (webmd.com)
The aortic valve is the last of the four valves that blood passes through before leaving the heart. (webmd.com)
This type of congenital heart defect can be treated by repairing or replacing the valve. (webmd.com)
When your aortic valve won't open normally, your heart can't pump all the blood building up inside it. (webmd.com)
Depending on the severity of the valve narrowing, this situation can lead to progressive lung congestion and heart failure. (hopkinsmedicine.org)
Aortic valve replacements require the use of cardiopulmonary bypass, otherwise known as ?the heart-lung machine. (hopkinsmedicine.org)
It may get worse, at which point the valve will narrow even further and your heart will pump harder to keep up with blood flow supply. (healingwell.com)
Your aortic valve does not close all the way, so blood leaks back into the heart. (medlineplus.gov)
Your aortic valve does not open fully, so blood flow out of the heart is reduced. (medlineplus.gov)
This lets the surgeon reach the heart and aortic valve. (medlineplus.gov)
A 3D view of the heart and aortic valve are displayed on a computer in the operating room. (medlineplus.gov)
Changes in your aortic valve are causing major heart symptoms, such as chest pain, shortness of breath, fainting spells, or heart failure. (medlineplus.gov)
Tests show that changes in your aortic valve are harming the work of your heart. (medlineplus.gov)
My daughter is just recently married and is 28 years old with the conjenital heart defect of an aortic tricusp heart valve. (medhelp.org)
1. Thickening refers to a build-up of excess tissue that restricts the ability of the heart valve to move and function normally. (medhelp.org)
This narrowing prevents the valve from opening fully, which reduces or blocks blood flow from the heart to the body. (mayoclinic.org)
Your doctor may listen to your heart with a stethoscope to determine if you have a heart murmur that may indicate a bicuspid aortic valve. (mayoclinic.org)
The aortic valve controls blood flow from the heart to the rest of the body. (emoryhealthcare.org)
In aortic stenosis, the valve narrows, restricting blood flow from the heart. (emoryhealthcare.org)
There are four valves in the heart. (emaxhealth.com)
The other two (pulmonary and aortic) valves control blood flow either into or out of the heart. (emaxhealth.com)
When the aortic valve malfunctions, the heart will be forced to pump harder to deliver blood to the body. (emaxhealth.com)
This is me rabin,I am from nepal.Currently i have one issue wioth the health of my dad, he is in hopspital and according to doctor we need to change his one of the valve of heart that is aortic. (emaxhealth.com)
Understanding your heart valve problem: Which solution may be right for you? (heart.org)
A heart murmur is the most common sign detected by a physician indicating that a valve problem may be present. (cincinnatichildrens.org)
Children with mild-to-moderate degrees of aortic valve stenosis will have easily detectable heart murmurs, and typically have no symptoms at all. (cincinnatichildrens.org)
A newborn with critical aortic valve stenosis develops heart failure in the first days of life. (cincinnatichildrens.org)
The heart murmur of aortic stenosis is a turbulent noise caused by ejection of blood through the obstructed valve. (cincinnatichildrens.org)
The exercise stress test provides information regarding the impact of aortic stenosis on the function of the heart during real-world conditions for children (as opposed to merely studying it at rest). (cincinnatichildrens.org)
Aortic valve stenosis - or aortic stenosis - occurs when the heart's aortic valve thickens and calcifies, preventing the valve from opening fully, which limits blood flow from your heart to the rest of your body. (mayoclinic.org)
6 More recently, the increased risk of identifying a bicuspid aortic valve in the parent or sibling of the proband with any form of left heart obstructive lesion was described. (ahajournals.org)
7 By inference, this also suggests the potential identification of a congenitally malformed aortic valve in the presence a family member with a more complex congenital heart lesion. (ahajournals.org)
Valves maintain one-way blood flow through the heart. (clevelandclinic.org)
When the heart rests between beats, the valve closes to keep blood from flowing backward into the heart. (rexhealth.com)
Your doctor may suspect that you have this type of valve problem after hearing a heart murmur through a stethoscope. (rexhealth.com)
Edwards SAPIEN 3 transcatheter heart valve [Internet]. (springer.com)
With more than 40 years of heart valve innovations, we took proven valve design concepts and adapted them for excellent implantability for you and performance for your patients. (medtronic.com)
In rare cases, your doctor will reach the faulty valve by guiding the tube through a blood vessel from your thigh to the heart and poking a hole through the septum, the wall of tissue that separates the right and left atria of the heart. (nih.gov)
Your heart has four valves that work to keep blood flowing in the right direction. (upmc.com)
When the heart relaxes, the flaps of the valve snap shut to prevent blood from flowing backward. (upmc.com)
At the UPMC Heart and Vascular Institute , we take a team-based approach to develop the right treatment for your aortic stenosis , based on your unique circumstances. (upmc.com)
Although there are cases where aortic stenosis can be present at birth (congenital), this heart condition is more commonly seen among older adults. (upmc.com)
Aortic stenosis can weaken the heart and lead to heart failure . (upmc.com)
While listening to your heart with a stethoscope, your primary care doctor can detect the condition by hearing abnormal valve sounds called murmurs. (upmc.com)
Echocardiogram, which uses sound waves to create images of your heart and valves. (upmc.com)
Recognition of the symptom triad of syncope, heart failure, and angina is crucial to the prompt initiation of appropriate treatment for aortic stenosis, without which mortality nears 50% within 2 years of symptom triad onset. (nursingcenter.com)
3,4 The transition from asymptomatic to symptomatic aortic stenosis leads to irreversible heart damage, such as left ventricular hypertrophy or dysfunction, and dysrhythmias. (nursingcenter.com)
In conventional open-heart surgery , the damaged valve is removed and replaced with an artificial valve. (memorialhermann.org)
The new heart valve is inserted via a small incision in a major artery. (memorialhermann.org)
Once in place, the new valve expands, pushing the diseased valve aside to increase blood flow through the heart. (memorialhermann.org)
Your aortic valve separates your heart from the main artery in your body. (sutterhealth.org)
Blood flows from your heart through this valve to deliver oxygen and nourishment to the rest of your body. (sutterhealth.org)
If the valve does not close all the way, blood can leak back into the heart. (sutterhealth.org)
If the valve does not open all the way, the heart needs to work harder to maintain blood flow out of the heart. (sutterhealth.org)
Traditionally, aortic valves were replaced by open-heart surgery. (sutterhealth.org)
Instead of regulating the flow of air, fuel and exhaust as they do in a car, your heart 's valves are in charge of blood flow. (howstuffworks.com)
We need heart valves because they keep our blood flowing in one direction by opening and allowing it to pass, and then closing to prevent it from flowing backward. (howstuffworks.com)
Your body is a closed system, meaning blood travels in essentially one big loop, so the closed valves allow pressure to build up before releasing two ventricles' worth of blood from the heart. (howstuffworks.com)
This machine takes over the task of breathing for the patient and pumping his blood around while the surgeon replaces the heart valve. (bionity.com)
Transesophageal echocardiogram (TEE, an ultra-sound of the heart done through the esophagus) can be used to verify that the new valve is functioning properly. (bionity.com)
Most young people and teens who have aortic valve stenosis developed it from a congenital heart defect. (adventisthealthcare.com)
The most common heart defect that causes aortic stenosis is a bicuspid aortic valve . (adventisthealthcare.com)
You probably won't have any symptoms if you have mild or moderate aortic valve stenosis, because your heart can make up for the stenosis. (adventisthealthcare.com)
Your aortic valve does not open fully, limiting the amount of oxygenated blood flowing out of the heart. (sutterhealth.org)
Historically, fixing a diseased valve required open-heart surgery. (sutterhealth.org)
Your heart team will decide which bio-prosthetic valve is right for you based on the shape, size, structure of your heart and access blood vessels. (sutterhealth.org)
The Medtronic heart valve frame, also available in four sizes, is made from a nickel-titanium alloy. (sutterhealth.org)
When the tube reaches the narrow heart valve, the balloon is inflated and deflated. (rexhealth.com)
This group typically has aortic valve stenosis because of a congenital heart defect such as a bicuspid aortic valve . (rexhealth.com)
These emboli usually result from diagnostic manoeuvres (e.g. left heart catheterization) or from therapeutic procedures (e.g. heart valve surgery). (nih.gov)
The function of the valves in the peripheral veins is to ensure that the overall movement of blood in the veins is in the right direction, toward the heart. (reference.com)
What are some heart surgeons who specialize in aortic valve repair? (reference.com)
The aortic valve is the last structure in the heart the blood travels through before stopping the flow through the systemic circulation. (wikipedia.org)
The closure of the aortic valve contributes the A2 component of the second heart sound (S2). (wikipedia.org)
A normally functioning valve permits normal physiology and dysfunction of the valve results in left ventricular hypertrophy and heart failure. (wikipedia.org)
Dysfunctional aortic valves often present as heart failure by non-specific symptoms such as fatigue, low energy, and shortness of breath with exertion. (wikipedia.org)
The aortic valve is a semilunar valve of the heart. (easycalculation.com)
The heart has 4 valves. (rochester.edu)
These valves help blood flow through the heart and out to the body by promoting forward flow and preventing backflow. (rochester.edu)
So the heart must work harder to pump the blood across the narrowed valve. (rochester.edu)
Biological valves are made mainly of pig, cow, or human heart tissue. (rochester.edu)
If the valve does not pump blood away from the heart properly, pressure can build up and cause damage. (bronsonhealth.com)
The choice of valve is determined by the multi-disciplinary heart team. (bronsonhealth.com)
The New York Times is reporting that Edwards Lifesciences is suspending "… a clinical trial of a method of replacing failing aortic heart valves without open heart surgery because "more than one" of the 10 patients in the trial died and others experienced serious complications. (medgadget.com)
Albert Starr and his engineer partner, the late Lowell Edwards, invented the world's first successful artificial heart valve. (laskerfoundation.org)
He continues to probe the suboptimal areas of heart-valve surgery, relentlessly pursuing superior strategies. (laskerfoundation.org)
The surgeon was trying to alleviate problems associated with the patient's aortic valve, which was allowing blood to trickle backward into the heart. (laskerfoundation.org)
Your heart must work harder to get blood through a narrowed valve. (uwhealth.org)
If you have aortic valve stenosis, we treat you through our Heart Valve Clinic at University Hospital in Madison, Wis. (uwhealth.org)
Allograft - This is an aortic or pulmonic valve from a donated human heart. (mainlinehealth.org)
Most people never have any problems with their heart valves. (everydayhealth.com)
Similarly, a stiffened calcified aortic valve can severely interfere with blood flow from the heart. (everydayhealth.com)
In fact, the heart can compensate for quite serious changes in the valve as it gets progressively smaller and smaller. (everydayhealth.com)
The aortic valve is one of the valves of the heart . (wikidoc.org)
When this happens, the valve fails to work effectively, making it harder for the heart to pump blood to the rest of the body. (eurekalert.org)
These artificial heart valves are held in place by a metal stent. (rochester.edu)
How do I get to the Heart Valve Center? (rochester.edu)
The UR Medicine Advanced Heart Valve Center is located in the Paul Yu Heart Center at Strong Memorial Hospital - 601 Elmwood Avenue, Rochester, NY 14642. (rochester.edu)
To get to the Heart Valve Center, enter the hospital lobby on the first floor and take the silver elevators down one level to the ground floor. (rochester.edu)
Betsy Melito, NP, one of our Heart Valve Center Coordinators, is available to answer any questions or concerns you may have. (rochester.edu)
Heart valves open when the heart pumps to allow blood to flow. (apollohospitals.com)
The aortic valve controls the flow of blood as it exits the heart and is pumped to the rest of the body. (apollohospitals.com)
This decreases the pumping ability of the heart to push blood through the aortic valve to your body. (apollohospitals.com)
Unfortunately, though there are many medications available to treat other heart conditions, there is no drug therapy to cure aortic stenosis. (apollohospitals.com)
Stenosis is a condition when a heart valve doesn't open enough and blocks blood flow. (seniorjournal.com)
Normally, these valves open to let blood flow through or out of your heart, and then shut to keep it from flowing backward. (seniorjournal.com)
It's one of the most common heart valve conditions. (seniorjournal.com)
This trileaflet valve which looks similar to a natural human heart valve was developed by Charles Hufnagel, MD. It is coated in hepacone, silicone rubber impregnated with heparin, and is a size 5 with a diameter of 33mm. (si.edu)
Hufnagel believed the trileaflet design would prove to be superior to the ball and cage heart valve because it provided better dynamics. (si.edu)
The valve should be closed while the heart is filling with blood. (epnet.com)
Homograft or allograft-The valve is harvested from a donated human heart. (epnet.com)
Echocardiogram -This is a test that uses sound waves to produce a moving picture of your heart and its valves. (epnet.com)
This allows the doctor to stop your heart to safely work on the heart valve. (epnet.com)
During open-heart valve surgery, the doctor makes a large incision in the chest. (lmh.org)
The heart may be cooled to slow or stop the heartbeat so that the heart is protected from damage while surgery is done to replace the valve with an artificial valve. (lmh.org)

The use of dynamic numerical simulation aids researchers in better understanding valve dynamics and speeds up the prosthetic valve design process. (mscsoftware.com)
The aortic valve is a complex structure and there is a constant need for flow and stress data to support the design of a prosthetic valve in the absence of viable measurement methods. (mscsoftware.com)
The balloon inflates inside the damaged valve to expand and make room for the new bio-prosthetic valve. (sutterhealth.org)

There are alternatives to animal tissue valves. (wikipedia.org)
The durability of homograft valves is probably the same as for porcine tissue valves. (wikipedia.org)
Scar tissue makes it easier for calcium to build up on the valve. (webmd.com)
Tissue valves gradually wear out over the course of several years. (medhelp.org)
Biological tissue valves degenerate over time and may eventually need to be replaced. (mayoclinic.org)
The semilunar valves and their related sinuses are created by absorption and the hollowing out of tissue at the distal side of the truncus ridges. (medscape.com)
You have an existing biological tissue valve but it isn't working well anymore. (mayoclinic.org)
Bioprosthetic valves, made of porcine (pig) or bovine (calf) tissue, which have an average durability of 10 to 15 years. (bidmc.org)
In all, secondary operative intervention would have been fruitless because of the extent of the infection and the character of the tissue at the aortic root. (ahajournals.org)
When expanded, the new valve pushes tissue on the old valve out of the way and immediately begins regulating blood flow. (sutterhealth.org)
Biological valves are made of human or animal tissue, and typically last 10 to 15 years. (sutterhealth.org)
Blood is entering the left atrium from the nearby lungs at low pressure, but this motor must then push it through the chambers and valves with enough force to shoot the newly oxygenated blood to every tissue in your body. (howstuffworks.com)
The durability of homograft valves is probably the same for porcine tissue valves. (bionity.com)
Tissue valves tend to wear out faster with increased flow demands - such as with a more active (typically younger person). (bionity.com)
Tissue valves typically last 10-15 years in less active (typically elderly) patients, but wear out faster in younger patients. (bionity.com)
Stentless tissue aortic valves are gaining in popularity because of advantages in hemodynamics and durability compared with stented bioprostheses. (biomedsearch.com)
This report describes the echocardiographic appearance of normally functioning stentless tissue heterograft aortic valves as an aid to their intraoperative and subsequent echocardiographic assessment. (biomedsearch.com)
Initially, animal-tissue valves were used only in elderly patients. (laskerfoundation.org)
Tissue - This is a biological or bioprosthetic valve made of tissue from pig or cow (or from other species). (mainlinehealth.org)

Spontaneous calcific cerebral emboli from calcified aortic valve stenosis. (nih.gov)
Calcific cerebral emboli (CE) are a rare complication of calcified aortic valve stenosis (CAS). (nih.gov)

What causes aortic valve stenosis? (webmd.com)

What is Edwards SAPIEN Aortic Valve Prosthesis? (patientslikeme.com)
There are no evaluations for Edwards SAPIEN Aortic Valve Prosthesis. (patientslikeme.com)

Echocardiographic assessment of stentless aortic bioprosthetic valves. (biomedsearch.com)
Bioprosthetic-This valve is made out of a combination of artificial materials and tissues from a pig, cow, or other animal. (epnet.com)

But as you move into adulthood, the abnormal valve is more likely to get stiffer and not open as well. (webmd.com)
Being born with an abnormal aortic valve means you may have aortic valve stenosis later in life. (webmd.com)
During exercise patients with important degrees of aortic stenosis may show abnormal blood pressure responses or electrocardiogram changes. (cincinnatichildrens.org)
Aortic valve Stenosis is an abnormal narrowing of the aortic valve. (medindia.net)
The first is patients born with a congenitally abnormal valve. (thestar.com)

Quadricuspid semilunar valve. (wikipedia.org)
The semilunar valves , however, serve as the exit doors that blood pulses through as it leaves the ventricles on its way to the fuel lines (your arteries). (howstuffworks.com)
On the left, this semilunar valve is called your aortic valve , and on the right, the pulmonary valve . (howstuffworks.com)
The aortic valve along with the pulmonary valve comprise what are known as the semilunar valves. (medmovie.com)

In aortic stenosis, the aortic valve becomes narrowed and blocked by hard, calcified deposits, or in some people, from rheumatic fever years earlier. (healthcentral.com)
Rheumatic fever can scar the aortic valve. (webmd.com)
Scarring of the aortic valve due to rheumatic fever as a child or young adult is a rare cause in developed countries. (medindia.net)
Some people may develop aortic stenosis after having rheumatic fever . (adventisthealthcare.com)

A small subset of patients with unicuspid or severely deformed bicuspid valves require intervention in childhood or adolescence. (ahajournals.org)
BACKGROUND: Unicuspid aortic valve (UAV) is a rare disorder, often difficult to distinguish from bicuspid aortic valve (BAV). (rti.org)
The commonest causes below the age of 30 years are congenital unicuspid or bicuspid aortic valves. (hubpages.com)
Between 30-70 years, bicuspid aortic valves, rheumatic valvulitis and unicuspid valves account for the majority of cases. (hubpages.com)
Unicuspid aortic valve is inherently stenotic and is the only type of valvar stenosis present at birth. (hubpages.com)

Anatomy14

Organisms1

Diseases38

Chemicals and Drugs2

Analytical, Diagnostic and Therapeutic Techniques and Equipment55

Phenomena and Processes8

Disciplines and Occupations1

Technology, Industry, Agriculture1

Information Science1

Health Care14

Investigation of the theory and mechanism of the origin of the second heart sound. (1/2271)

Acetylcholine-induced membrane potential changes in endothelial cells of rabbit aortic valve. (2/2271)

Extent and severity of atherosclerotic involvement of the aortic valve and root in familial hypercholesterolaemia. (3/2271)

Bileaflet mechanical prostheses for aortic valve replacement in patients younger than 65 years and 65 years of age or older: major thromboembolic and hemorrhagic complications. (4/2271)

Minimally invasive aortic valve replacement through a transverse sternotomy: a word of caution. (5/2271)

Role of glutaraldehyde in calcification of porcine aortic valve fibroblasts. (6/2271)

Perivalvular abscesses associated with endocarditis; clinical features and prognostic factors of overall survival in a series of 233 cases. Perivalvular Abscesses French Multicentre Study. (7/2271)

Syphilitic aortic regurgitation. An appraisal of surgical treatment. (8/2271)

Aortic Valve

Aortic Valve Stenosis

Aortic Valve Insufficiency

Heart Valve Diseases

Mitral Valve

Heart Valve Prosthesis Implantation

Heart Valve Prosthesis

Bioprosthesis

Pulmonary Valve

Tricuspid Valve

Cardiac Catheterization

Mitral Valve Insufficiency

Aortic Valve Prolapse

Calcinosis

Endocarditis, Bacterial

Mitral Valve Prolapse

Prosthesis Design

Mitral Valve Stenosis

Echocardiography, Transesophageal

Venous Valves

Echocardiography

Cardiac Valve Annuloplasty

Treatment Outcome

Endocarditis

Aortic Aneurysm

Tricuspid Valve Insufficiency

Catheterization

Mitral Valve Annuloplasty

Echocardiography, Doppler

Reoperation

Heart Defects, Congenital

Prosthesis Failure

Dilatation, Pathologic

Echocardiography, Doppler, Color

Cardiac Surgical Procedures

Severity of Illness Index

Balloon Valvuloplasty

Postoperative Complications

Sinus of Valsalva

Follow-Up Studies

Time Factors

Multidetector Computed Tomography

Hemodynamics

Prosthesis Fitting

Suture Techniques

Pulmonary Valve Stenosis

Phonocardiography

Echocardiography, Three-Dimensional

Replantation

Retrospective Studies

Chordae Tendineae

Aorta

Fibroma

Sternum

Sclerosis

Heart Valves

Prospective Studies

Aortic Diseases

Thoracic Surgery

Risk Factors

Pericardium

Cardiopulmonary Bypass

Risk Assessment

Cardiovascular Surgical Procedures

Heart Ventricles

Thoracotomy

Sternotomy

Stroke Volume

Endocardial Fibroelastosis

Models, Cardiovascular

Ventricular Function, Left

Feasibility Studies

Prolapse

Chi-Square Distribution

Atrioventricular Block

Aortic Coarctation

Aortic Stenosis, Subvalvular

Rheumatic Heart Disease

Polyethylene Terephthalates

Heart Arrest, Induced