Cardiac Catheterization: Procedures in which placement of CARDIAC CATHETERS is performed for therapeutic or diagnostic procedures.Urinary Catheterization: Passage of a CATHETER into the URINARY BLADDER or kidney.Catheterization: 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.Catheterization, Peripheral: Insertion of a catheter into a peripheral artery, vein, or airway for diagnostic or therapeutic purposes.Catheterization, Central Venous: Placement of an intravenous CATHETER in the subclavian, jugular, or other central vein.Intermittent Urethral Catheterization: Insertion of a catheter into the urethra to drain the urine from the bladder at intervals as needed.Catheterization, Swan-Ganz: Placement of a balloon-tipped catheter into the pulmonary artery through the antecubital, subclavian, and sometimes the femoral vein. It is used to measure pulmonary artery pressure and pulmonary artery wedge pressure which reflects left atrial pressure and left ventricular end-diastolic pressure. The catheter is threaded into the right atrium, the balloon is inflated and the catheter follows the blood flow through the tricuspid valve into the right ventricle and out into the pulmonary artery.Urinary Retention: Inability to empty the URINARY BLADDER with voiding (URINATION).Subclavian Vein: The continuation of the axillary vein which follows the subclavian artery and then joins the internal jugular vein to form the brachiocephalic vein.Hypertension, Pulmonary: Increased VASCULAR RESISTANCE in the PULMONARY CIRCULATION, usually secondary to HEART DISEASES or LUNG DISEASES.Pulmonary Wedge Pressure: The blood pressure as recorded after wedging a CATHETER in a small PULMONARY ARTERY; believed to reflect the PRESSURE in the pulmonary CAPILLARIES.Catheters, Indwelling: Catheters designed to be left within an organ or passage for an extended period of time.Urinary Bladder, Neurogenic: Dysfunction of the URINARY BLADDER due to disease of the central or peripheral nervous system pathways involved in the control of URINATION. This is often associated with SPINAL CORD DISEASES, but may also be caused by BRAIN DISEASES or PERIPHERAL NERVE DISEASES.Jugular Veins: Veins in the neck which drain the brain, face, and neck into the brachiocephalic or subclavian veins.Heart Defects, Congenital: Developmental abnormalities involving structures of the heart. These defects are present at birth but may be discovered later in life.Pulmonary Artery: The short wide vessel arising from the conus arteriosus of the right ventricle and conveying unaerated blood to the lungs.Hemostatic Techniques: Techniques for controlling bleeding.Coronary Angiography: Radiography of the vascular system of the heart muscle after injection of a contrast medium.Hemodynamics: The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.Punctures: Incision of tissues for injection of medication or for other diagnostic or therapeutic procedures. Punctures of the skin, for example may be used for diagnostic drainage; of blood vessels for diagnostic imaging procedures.Radial Artery: The direct continuation of the brachial trunk, originating at the bifurcation of the brachial artery opposite the neck of the radius. Its branches may be divided into three groups corresponding to the three regions in which the vessel is situated, the forearm, wrist, and hand.Echocardiography: Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic.Femoral Artery: The main artery of the thigh, a continuation of the external iliac artery.Echocardiography, Doppler: 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.Prospective Studies: 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.Angioplasty, Balloon, Coronary: Dilation of an occluded coronary artery (or arteries) by means of a balloon catheter to restore myocardial blood supply.Treatment Outcome: 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.Myocardial Infarction: NECROSIS of the MYOCARDIUM caused by an obstruction of the blood supply to the heart (CORONARY CIRCULATION).Femoral Vein: The vein accompanying the femoral artery in the same sheath; it is a continuation of the popliteal vein and becomes the external iliac vein.Retrospective Studies: 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.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Angiocardiography: Radiography of the heart and great vessels after injection of a contrast medium.Cardiology Service, Hospital: The hospital department responsible for the administration and provision of diagnostic and therapeutic services for the cardiac patient.Urinary Tract Infections: Inflammatory responses of the epithelium of the URINARY TRACT to microbial invasions. They are often bacterial infections with associated BACTERIURIA and PYURIA.Cineangiography: Motion pictures of the passage of contrast medium through blood vessels.Fluoroscopy: Production of an image when x-rays strike a fluorescent screen.Cystostomy: Surgical creation of an opening (stoma) in the URINARY BLADDER for drainage.Heart Septal Defects, Ventricular: 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.Electrocardiography: Recording of the moment-to-moment electromotive forces of the HEART as projected onto various sites on the body's surface, delineated as a scalar function of time. The recording is monitored by a tracing on slow moving chart paper or by observing it on a cardioscope, which is a CATHODE RAY TUBE DISPLAY.Follow-Up Studies: 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.Pulmonary Valve Stenosis: 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.Angiography: Radiography of blood vessels after injection of a contrast medium.Catheters: A flexible, tubular device that is used to carry fluids into or from a blood vessel, hollow organ, or body cavity.Heart Septum: This structure includes the thin muscular atrial septum between the two HEART ATRIA, and the thick muscular ventricular septum between the two HEART VENTRICLES.Radiography, Interventional: Diagnostic and therapeutic procedures that are invasive or surgical in nature, and require the expertise of a specially trained radiologist. In general, they are more invasive than diagnostic imaging but less invasive than major surgery. They often involve catheterization, fluoroscopy, or computed tomography. Some examples include percutaneous transhepatic cholangiography, percutaneous transthoracic biopsy, balloon angioplasty, and arterial embolization.Heart Septal Defects, Atrial: Developmental abnormalities in any portion of the ATRIAL SEPTUM resulting in abnormal communications between the two upper chambers of the heart. Classification of atrial septal defects is based on location of the communication and types of incomplete fusion of atrial septa with the ENDOCARDIAL CUSHIONS in the fetal heart. They include ostium primum, ostium secundum, sinus venosus, and coronary sinus defects.Pericarditis, Constrictive: Inflammation of the PERICARDIUM that is characterized by the fibrous scarring and adhesion of both serous layers, the VISCERAL PERICARDIUM and the PARIETAL PERICARDIUM leading to the loss of pericardial cavity. The thickened pericardium severely restricts cardiac filling. Clinical signs include FATIGUE, muscle wasting, and WEIGHT LOSS.Coronary Artery Disease: Pathological processes of CORONARY ARTERIES that may derive from a congenital abnormality, atherosclerotic, or non-atherosclerotic cause.Cardiac Output: The volume of BLOOD passing through the HEART per unit of time. It is usually expressed as liters (volume) per minute so as not to be confused with STROKE VOLUME (volume per beat).Aortic Valve Stenosis: 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.Urethral Diseases: Pathological processes involving the URETHRA.Pulmonary Circulation: The circulation of the BLOOD through the LUNGS.Heart Ventricles: 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.Iatrogenic Disease: Any adverse condition in a patient occurring as the result of treatment by a physician, surgeon, or other health professional, especially infections acquired by a patient during the course of treatment.Coronary Disease: An imbalance between myocardial functional requirements and the capacity of the CORONARY VESSELS to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels.Ventricular Function, Left: 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.Ventricular Pressure: The pressure within a CARDIAC VENTRICLE. Ventricular pressure waveforms can be measured in the beating heart by catheterization or estimated using imaging techniques (e.g., DOPPLER ECHOCARDIOGRAPHY). The information is useful in evaluating the function of the MYOCARDIUM; CARDIAC VALVES; and PERICARDIUM, particularly with simultaneous measurement of other (e.g., aortic or atrial) pressures.Urinary Catheters: Catheters inserted into the URINARY BLADDER or kidney for therapeutic or diagnostic purposes.Heart Diseases: Pathological conditions involving the HEART including its structural and functional abnormalities.Cardiac Surgical Procedures: Surgery performed on the heart.Stroke Volume: 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.Cardiology: The study of the heart, its physiology, and its functions.Infant, Newborn: An infant during the first month after birth.Cardiac Care Facilities: Institutions specializing in the care of patients with heart disorders.Vascular Resistance: The force that opposes the flow of BLOOD through a vascular bed. It is equal to the difference in BLOOD PRESSURE across the vascular bed divided by the CARDIAC OUTPUT.Exercise Test: Controlled physical activity which is performed in order to allow assessment of physiological functions, particularly cardiovascular and pulmonary, but also aerobic capacity. Maximal (most intense) exercise is usually required but submaximal exercise is also used.Blood Pressure: PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.Coronary Artery Bypass: 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.Hysterosalpingography: Radiography of the uterus and fallopian tubes after the injection of a contrast medium.Myocardial Revascularization: The restoration of blood supply to the myocardium. (From Dorland, 28th ed)Aneurysm, False: Not an aneurysm but a well-defined collection of blood and CONNECTIVE TISSUE outside the wall of a blood vessel or the heart. It is the containment of a ruptured blood vessel or heart, such as sealing a rupture of the left ventricle. False aneurysm is formed by organized THROMBUS and HEMATOMA in surrounding tissue.Urethra: A tube that transports URINE from the URINARY BLADDER to the outside of the body in both the sexes. It also has a reproductive function in the male by providing a passage for SPERM.Risk Factors: 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.Feasibility Studies: Studies to determine the advantages or disadvantages, practicability, or capability of accomplishing a projected plan, study, or project.Atrial Septum: The thin membrane-like muscular structure separating the right and the left upper chambers (HEART ATRIA) of a heart.Contrast Media: Substances used to allow enhanced visualization of tissues.Hemothorax: Hemorrhage within the pleural cavity.Mitral Valve Stenosis: 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.Vena Cava, Superior: The venous trunk which returns blood from the head, neck, upper extremities and chest.Heart Bypass, Right: Diversion of the flow of blood from the entrance to the right atrium directly to the pulmonary arteries, avoiding the right atrium and right ventricle (Dorland, 28th ed). This a permanent procedure often performed to bypass a congenitally deformed right atrium or right ventricle.Certificate of Need: A certificate issued by a governmental body to an individual or organization proposing to construct or modify a health facility, or to offer a new or different service. The process of issuing the certificate is also included.Radiology, Interventional: Subspecialty of radiology that combines organ system radiography, catheter techniques and sectional imaging.Pulmonary Veins: The veins that return the oxygenated blood from the lungs to the left atrium of the heart.Embolism, Cholesterol: Blocking of a blood vessel by CHOLESTEROL-rich atheromatous deposits, generally occurring in the flow from a large artery to small arterial branches. It is also called arterial-arterial embolization or atheroembolism which may be spontaneous or iatrogenic. Patients with spontaneous atheroembolism often have painful, cyanotic digits of acute onset.Blood Flow Velocity: A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.Urinary Bladder Diseases: Pathological processes of the URINARY BLADDER.Predictive Value of Tests: 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.Mitral Valve: The valve between the left atrium and left ventricle of the heart.Fontan Procedure: A procedure in which total right atrial or total caval blood flow is channeled directly into the pulmonary artery or into a small right ventricle that serves only as a conduit. The principal congenital malformations for which this operation is useful are TRICUSPID ATRESIA and single ventricle with pulmonary stenosis.Coronary Vessels: The veins and arteries of the HEART.Arteriovenous Fistula: An abnormal direct communication between an artery and a vein without passing through the CAPILLARIES. An A-V fistula usually leads to the formation of a dilated sac-like connection, arteriovenous aneurysm. The locations and size of the shunts determine the degree of effects on the cardiovascular functions such as BLOOD PRESSURE and HEART RATE.Hemorrhage: Bleeding or escape of blood from a vessel.Coronary Circulation: The circulation of blood through the CORONARY VESSELS of the HEART.Angioplasty, Balloon: Use of a balloon catheter for dilation of an occluded artery. It is used in treatment of arterial occlusive diseases, including renal artery stenosis and arterial occlusions in the leg. For the specific technique of BALLOON DILATION in coronary arteries, ANGIOPLASTY, BALLOON, CORONARY is available.Acute Coronary Syndrome: An episode of MYOCARDIAL ISCHEMIA that generally lasts longer than a transient anginal episode that ultimately may lead to MYOCARDIAL INFARCTION.Equipment Design: Methods of creating machines and devices.Ultrasonography, Interventional: The use of ultrasound to guide minimally invasive surgical procedures such as needle ASPIRATION BIOPSY; DRAINAGE; etc. Its widest application is intravascular ultrasound imaging but it is useful also in urology and intra-abdominal conditions.Pulmonary Atresia: A congenital heart defect characterized by the narrowing or complete absence of the opening between the RIGHT VENTRICLE and the PULMONARY ARTERY. Lacking a normal PULMONARY VALVE, unoxygenated blood in the right ventricle can not be effectively pumped into the lung for oxygenation. Clinical features include rapid breathing, CYANOSIS, right ventricle atrophy, and abnormal heart sounds (HEART MURMURS).Embolization, Therapeutic: A method of hemostasis utilizing various agents such as Gelfoam, silastic, metal, glass, or plastic pellets, autologous clot, fat, and muscle as emboli. It has been used in the treatment of spinal cord and INTRACRANIAL ARTERIOVENOUS MALFORMATIONS, renal arteriovenous fistulas, gastrointestinal bleeding, epistaxis, hypersplenism, certain highly vascular tumors, traumatic rupture of blood vessels, and control of operative hemorrhage.Coronary Vessel Anomalies: Malformations of CORONARY VESSELS, either arteries or veins. Included are anomalous origins of coronary arteries; ARTERIOVENOUS FISTULA; CORONARY ANEURYSM; MYOCARDIAL BRIDGING; and others.Postoperative Complications: 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.Ductus Arteriosus, Patent: A congenital heart defect characterized by the persistent opening of fetal DUCTUS ARTERIOSUS that connects the PULMONARY ARTERY to the descending aorta (AORTA, DESCENDING) allowing unoxygenated blood to bypass the lung and flow to the PLACENTA. Normally, the ductus is closed shortly after birth.Hematoma: A collection of blood outside the BLOOD VESSELS. Hematoma can be localized in an organ, space, or tissue.Heart Atria: The chambers of the heart, to which the BLOOD returns from the circulation.Catheter-Related Infections: Infections resulting from the use of catheters. Proper aseptic technique, site of catheter placement, material composition, and virulence of the organism are all factors that can influence possible infection.Stents: Devices that provide support for tubular structures that are being anastomosed or for body cavities during skin grafting.Risk Assessment: 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)Heart: The hollow, muscular organ that maintains the circulation of the blood.Aortic Coarctation: 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.Spinal Cord Injuries: Penetrating and non-penetrating injuries to the spinal cord resulting from traumatic external forces (e.g., WOUNDS, GUNSHOT; WHIPLASH INJURIES; etc.).Heart Failure: A heterogeneous condition in which the heart is unable to pump out sufficient blood to meet the metabolic need of the body. Heart failure can be caused by structural defects, functional abnormalities (VENTRICULAR DYSFUNCTION), or a sudden overload beyond its capacity. Chronic heart failure is more common than acute heart failure which results from sudden insult to cardiac function, such as MYOCARDIAL INFARCTION.Ventricular Dysfunction, Left: 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.Cardiomyopathy, Restrictive: A form of CARDIAC MUSCLE disease in which the ventricular walls are excessively rigid, impeding ventricular filling. It is marked by reduced diastolic volume of either or both ventricles but normal or nearly normal systolic function. It may be idiopathic or associated with other diseases (ENDOMYOCARDIAL FIBROSIS or AMYLOIDOSIS) causing interstitial fibrosis.Retinal Artery Occlusion: Sudden ISCHEMIA in the RETINA due to blocked blood flow through the CENTRAL RETINAL ARTERY or its branches leading to sudden complete or partial loss of vision, respectively, in the eye.Vena Cava, Inferior: The venous trunk which receives blood from the lower extremities and from the pelvic and abdominal organs.Hepatic Veins: Veins which drain the liver.Radiation ProtectionAlberta: A province of western Canada, lying between the provinces of British Columbia and Saskatchewan. Its capital is Edmonton. It was named in honor of Princess Louise Caroline Alberta, the fourth daughter of Queen Victoria. (From Webster's New Geographical Dictionary, 1988, p26 & Room, Brewer's Dictionary of Names, 1992, p12)Nitrofurazone: A topical anti-infective agent effective against gram-negative and gram-positive bacteria. It is used for superficial WOUNDS AND INJURIES and skin infections. Nitrofurazone has also been administered orally in the treatment of TRYPANOSOMIASIS.Urination Disorders: Abnormalities in the process of URINE voiding, including bladder control, frequency of URINATION, as well as the volume and composition of URINE.Tetralogy of Fallot: A combination of congenital heart defects consisting of four key features including VENTRICULAR SEPTAL DEFECTS; PULMONARY STENOSIS; RIGHT VENTRICULAR HYPERTROPHY; and a dextro-positioned AORTA. In this condition, blood from both ventricles (oxygen-rich and oxygen-poor) is pumped into the body often causing CYANOSIS.Veins: The vessels carrying blood away from the capillary beds.Thrombosis: Formation and development of a thrombus or blood clot in the blood vessel.Diastole: Post-systolic relaxation of the HEART, especially the HEART VENTRICLES.Percutaneous Coronary Intervention: A family of percutaneous techniques that are used to manage CORONARY OCCLUSION, including standard balloon angioplasty (PERCUTANEOUS TRANSLUMINAL CORONARY ANGIOPLASTY), the placement of intracoronary STENTS, and atheroablative technologies (e.g., ATHERECTOMY; ENDARTERECTOMY; THROMBECTOMY; PERCUTANEOUS TRANSLUMINAL LASER ANGIOPLASTY). PTCA was the dominant form of PCI, before the widespread use of stenting.Ventricular Function, Right: The hemodynamic and electrophysiological action of the right HEART VENTRICLE.Urodynamics: The mechanical laws of fluid dynamics as they apply to urine transport.Early Ambulation: Procedure to accelerate the ability of a patient to walk or move about by reducing the time to AMBULATION. It is characterized by a shorter period of hospitalization or recumbency than is normally practiced.Heart Valve Diseases: Pathological conditions involving any of the various HEART VALVES and the associated structures (PAPILLARY MUSCLES and CHORDAE TENDINEAE).Cardiomyopathy, Hypertrophic: A form of CARDIAC MUSCLE disease, characterized by left and/or right ventricular hypertrophy (HYPERTROPHY, LEFT VENTRICULAR; HYPERTROPHY, RIGHT VENTRICULAR), frequent asymmetrical involvement of the HEART SEPTUM, and normal or reduced left ventricular volume. Risk factors include HYPERTENSION; AORTIC STENOSIS; and gene MUTATION; (FAMILIAL HYPERTROPHIC CARDIOMYOPATHY).Urinary Bladder: A musculomembranous sac along the URINARY TRACT. URINE flows from the KIDNEYS into the bladder via the ureters (URETER), and is held there until URINATION.Echocardiography, Transesophageal: Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues using a transducer placed in the esophagus.Whole Blood Coagulation Time: The time required by whole blood to produce a visible clot.Equipment Failure: Failure of equipment to perform to standard. The failure may be due to defects or improper use.Urination: Discharge of URINE, liquid waste processed by the KIDNEY, from the body.Cyanosis: A bluish or purplish discoloration of the skin and mucous membranes due to an increase in the amount of deoxygenated hemoglobin in the blood or a structural defect in the hemoglobin molecule.Blue Toe Syndrome: A condition that is caused by recurring atheroembolism in the lower extremities. It is characterized by cyanotic discoloration of the toes, usually the first, fourth, and fifth toes. Discoloration may extend to the lateral aspect of the foot. Despite the gangrene-like appearance, blue toes may respond to conservative therapy without amputation.Hirudins: Single-chain polypeptides of about 65 amino acids (7 kDa) from LEECHES that have a neutral hydrophobic N terminus, an acidic hydrophilic C terminus, and a compact, hydrophobic core region. Recombinant hirudins lack tyr-63 sulfation and are referred to as 'desulfato-hirudins'. They form a stable non-covalent complex with ALPHA-THROMBIN, thereby abolishing its ability to cleave FIBRINOGEN.Vaginal Fistula: An abnormal anatomical passage that connects the VAGINA to other organs, such as the bladder (VESICOVAGINAL FISTULA) or the rectum (RECTOVAGINAL FISTULA).Pulmonary Valve: A valve situated at the entrance to the pulmonary trunk from the right ventricle.Ecchymosis: Extravasation of blood into the skin, resulting in a nonelevated, rounded or irregular, blue or purplish patch, larger than a petechia.Vasodilator Agents: Drugs used to cause dilation of the blood vessels.Aortic Valve: The valve between the left ventricle and the ascending aorta which prevents backflow into the left ventricle.Intracranial Embolism: Blocking of a blood vessel in the SKULL by an EMBOLUS which can be a blood clot (THROMBUS) or other undissolved material in the blood stream. Most emboli are of cardiac origin and are associated with HEART DISEASES. Other non-cardiac sources of emboli are usually associated with VASCULAR DISEASES.Subclavian Artery: Artery arising from the brachiocephalic trunk on the right side and from the arch of the aorta on the left side. It distributes to the neck, thoracic wall, spinal cord, brain, meninges, and upper limb.Hospital Communication Systems: The transmission of messages to staff and patients within a hospital.Urinary Incontinence: Involuntary loss of URINE, such as leaking of urine. It is a symptom of various underlying pathological processes. Major types of incontinence include URINARY URGE INCONTINENCE and URINARY STRESS INCONTINENCE.Aortography: Radiographic visualization of the aorta and its branches by injection of contrast media, using percutaneous puncture or catheterization procedures.Constriction, Pathologic: The condition of an anatomical structure's being constricted beyond normal dimensions.Registries: The systems and processes involved in the establishment, support, management, and operation of registers, e.g., disease registers.Brachiocephalic Veins: Large veins on either side of the root of the neck formed by the junction of the internal jugular and subclavian veins. They drain blood from the head, neck, and upper extremities, and unite to form the superior vena cava.Mitral Valve Insufficiency: 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.Prognosis: A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations.Ventricular Dysfunction, Right: A condition in which the RIGHT VENTRICLE of the heart was functionally impaired. This condition usually leads to HEART FAILURE or MYOCARDIAL INFARCTION, and other cardiovascular complications. Diagnosis is made by measuring the diminished ejection fraction and a depressed level of motility of the right ventricular wall.Severity of Illness Index: Levels within a diagnostic group which are established by various measurement criteria applied to the seriousness of a patient's disorder.Urethral Obstruction: Partial or complete blockage in any part of the URETHRA that can lead to difficulty or inability to empty the URINARY BLADDER. It is characterized by an enlarged, often damaged, bladder with frequent urges to void.Tomography, X-Ray Computed: Tomography using x-ray transmission and a computer algorithm to reconstruct the image.Bacteriuria: The presence of bacteria in the urine which is normally bacteria-free. These bacteria are from the URINARY TRACT and are not contaminants of the surrounding tissues. Bacteriuria can be symptomatic or asymptomatic. Significant bacteriuria is an indicator of urinary tract infection.Pulmonary Veno-Occlusive Disease: Pathological process resulting in the fibrous obstruction of the small- and medium-sized PULMONARY VEINS and PULMONARY HYPERTENSION. Veno-occlusion can arise from fibrous proliferation of the VASCULAR INTIMA and VASCULAR MEDIA; THROMBOSIS; or a combination of both.Heparin: A highly acidic mucopolysaccharide formed of equal parts of sulfated D-glucosamine and D-glucuronic acid with sulfaminic bridges. The molecular weight ranges from six to twenty thousand. Heparin occurs in and is obtained from liver, lung, mast cells, etc., of vertebrates. Its function is unknown, but it is used to prevent blood clotting in vivo and vitro, in the form of many different salts.Vascular System Injuries: Injuries to blood vessels caused by laceration, contusion, puncture, or crush and other types of injuries. Symptoms vary by site and mode of injuries and may include bleeding, bruising, swelling, pain, and numbness. It does not include injuries secondary to pathologic function or diseases such as ATHEROSCLEROSIS.Fetoscopes: Endoscopes for viewing the embryo, fetus and amniotic cavity.Sensitivity and Specificity: Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)Embolism: Blocking of a blood vessel by an embolus which can be a blood clot or other undissolved material in the blood stream.Injections, Intra-Arterial: Delivery of drugs into an artery.Transposition of Great Vessels: A congenital cardiovascular malformation in which the AORTA arises entirely from the RIGHT VENTRICLE, and the PULMONARY ARTERY arises from the LEFT VENTRICLE. Consequently, the pulmonary and the systemic circulations are parallel and not sequential, so that the venous return from the peripheral circulation is re-circulated by the right ventricle via aorta to the systemic circulation without being oxygenated in the lungs. This is a potentially lethal form of heart disease in newborns and infants.Thermodilution: Measurement of blood flow based on induction at one point of the circulation of a known change in the intravascular heat content of flowing blood and detection of the resultant change in temperature at a point downstream.Aortic Valve Insufficiency: 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).Logistic Models: Statistical models which describe the relationship between a qualitative dependent variable (that is, one which can take only certain discrete values, such as the presence or absence of a disease) and an independent variable. A common application is in epidemiology for estimating an individual's risk (probability of a disease) as a function of a given risk factor.Anesthesia, Epidural: Procedure in which an anesthetic is injected into the epidural space.Ventricular Outflow Obstruction: 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.Magnetic Resonance Angiography: Non-invasive method of vascular imaging and determination of internal anatomy without injection of contrast media or radiation exposure. The technique is used especially in CEREBRAL ANGIOGRAPHY as well as for studies of other vascular structures.Occlusive Dressings: Material, usually gauze or absorbent cotton, used to cover and protect wounds, to seal them from contact with air or bacteria. (From Dorland, 27th ed)Echocardiography, Doppler, Color: Echocardiography applying the Doppler effect, with the superposition of flow information as colors on a gray scale in a real-time image.Angina Pectoris: The symptom of paroxysmal pain consequent to MYOCARDIAL ISCHEMIA usually of distinctive character, location and radiation. It is thought to be provoked by a transient stressful situation during which the oxygen requirements of the MYOCARDIUM exceed that supplied by the CORONARY CIRCULATION.Thrombolytic Therapy: Use of infusions of FIBRINOLYTIC AGENTS to destroy or dissolve thrombi in blood vessels or bypass grafts.Ulnar Artery: The larger of the two terminal branches of the brachial artery, beginning about one centimeter distal to the bend of the elbow. Like the RADIAL ARTERY, its branches may be divided into three groups corresponding to their locations in the forearm, wrist, and hand.Central Venous Pressure: The blood pressure in the central large VEINS of the body. It is distinguished from peripheral venous pressure which occurs in an extremity.Ergonovine: An ergot alkaloid (ERGOT ALKALOIDS) with uterine and VASCULAR SMOOTH MUSCLE contractile properties.Learning Curve: The course of learning of an individual or a group. It is a measure of performance plotted over time.Balloon Occlusion: Use of a balloon CATHETER to block the flow of blood through an artery or vein.Pneumothorax: An accumulation of air or gas in the PLEURAL CAVITY, which may occur spontaneously or as a result of trauma or a pathological process. The gas may also be introduced deliberately during PNEUMOTHORAX, ARTIFICIAL.Enoxaparin: Low-molecular-weight fragment of heparin, having a 4-enopyranosuronate sodium structure at the non-reducing end of the chain. It is prepared by depolymerization of the benzylic ester of porcine mucosal heparin. Therapeutically, it is used as an antithrombotic agent. (From Merck Index, 11th ed)Epidural Space: Space between the dura mater and the walls of the vertebral canal.Fibrinolytic Agents: Fibrinolysin or agents that convert plasminogen to FIBRINOLYSIN.Reproducibility of Results: The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.Pressure: A type of stress exerted uniformly in all directions. Its measure is the force exerted per unit area. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Thallium Radioisotopes: Unstable isotopes of thallium that decay or disintegrate emitting radiation. Tl atoms with atomic weights 198-202, 204, and 206-210 are thallium radioisotopes.Heart Function Tests: Examinations used to diagnose and treat heart conditions.Urinary Tract: The duct which coveys URINE from the pelvis of the KIDNEY through the URETERS, BLADDER, and URETHRA.Aortic Stenosis, Subvalvular: A pathological constriction occurring in the region below the AORTIC VALVE. It is characterized by restricted outflow from the LEFT VENTRICLE into the AORTA.Transducers, Pressure: Transducers that are activated by pressure changes, e.g., blood pressure.Cardiac Catheters: Catheters inserted into various locations within the heart for diagnostic or therapeutic purposes.Magnetic Resonance Imaging, Cine: A type of imaging technique used primarily in the field of cardiology. By coordinating the fast gradient-echo MRI sequence with retrospective ECG-gating, numerous short time frames evenly spaced in the cardiac cycle are produced. These images are laced together in a cinematic display so that wall motion of the ventricles, valve motion, and blood flow patterns in the heart and great vessels can be visualized.Preoperative Care: Care given during the period prior to undergoing surgery when psychological and physical preparations are made according to the special needs of the individual patient. This period spans the time between admission to the hospital to the time the surgery begins. (From Dictionary of Health Services Management, 2d ed)Age Factors: Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time.Magnetic Resonance Imaging, Interventional: Minimally invasive procedures guided with the aid of magnetic resonance imaging to visualize tissue structures.Laboratories, Hospital: Hospital facilities equipped to carry out investigative procedures.Coronary Care Units: The hospital unit in which patients with acute cardiac disorders receive intensive care.Fallopian Tube Diseases: Diseases involving the FALLOPIAN TUBES including neoplasms (FALLOPIAN TUBE NEOPLASMS); SALPINGITIS; tubo-ovarian abscess; and blockage.Heart Injuries: General or unspecified injuries to the heart.

Twelfth rib resection as an approach for portal vein cannulation in sheep. (1/3799)

A surgical technique involving resection of the twelfth rib was used to insert silastic cannulas into the portal veins of three sheep to study amino acid metabolism. Good exposure to the vein was achieved by this method although it required positive ventilation due to the penetration of the thoracic cavity. All cannulas were buried subcutaneously and exteriorized near the dorsal midline. This facilitated continuous infusion into the portal cannula without disturbing cannula placement.  (+info)

Transcatheter closure of patent foramen ovale using the Amplatzer septal occluder to prevent recurrence of neurological decompression illness in divers. (2/3799)

OBJECTIVE: Large flap valve patent foramens may cause paradoxical thromboembolism and neurological decompression illness in divers. The ability of a self expanding Nitinol wire mesh device (Amplatzer septal occluder) to produce complete closure of the patent foramen ovale was assessed. PATIENTS: Seven adults, aged 18-60 years, who had experienced neurological decompression illness related to diving. Six appeared to have a normal atrial septum on transthoracic echocardiography, while one was found to have an aneurysm of the interatrial septum. METHODS: Right atrial angiography was performed to delineate the morphology of the right to left shunt. The defects were sized bidirectionally with a precalibrated balloon filled with dilute contrast. The largest balloon diameter that could be repeatedly passed across the septum was used to select the occlusion device diameter. Devices were introduced through 7 F long sheaths. All patients underwent transthoracic contrast echocardiography one month after the implant. RESULTS: Device placement was successful in all patients. Device sizes ranged from 9-14 mm. The patient with an aneurysm of the interatrial septum had three defects, which were closed with two devices. Right atrial angiography showed complete immediate closure in all patients. Median (range) fluoroscopy time was 13.7 (6-35) minutes. Follow up contrast echocardiography showed no right to left shunting in six of seven patients and the passage of a few bubbles in one patient. All patients have been allowed to return to diving. CONCLUSION: The Amplatzer septal occluder can close the large flap valve patent foramen ovale in divers who have experienced neurological decompression illness. Interatrial septal aneurysms with multiple defects may require more than one device.  (+info)

Central autonomic activation by intracisternal TRH analogue excites gastric splanchnic afferent neurons. (3/3799)

Intracisternal (ic) injection of thyrotropin-releasing hormone (TRH) or its stable analogue RX 77368 influences gastric function via stimulation of vagal muscarinic pathways. In rats, the increase in gastric mucosal blood flow evoked by a low ic dose of RX 77368 occurs via release of calcitonin gene-related peptide from capsaicin-sensitive afferent neurons, most probably of spinal origin. In this study, the effect of low ic doses of RX 77368 on afferent impulse activity in splanchnic single fibers was investigated. The cisterna magna of overnight-fasted, urethan-anesthetized Sprague-Dawley rats was acutely cannulated, and fine splanchnic nerve twigs containing at least one fiber responsive to mechanical probing of the stomach were isolated at a site immediately distal to the left suprarenal ganglion. Unit mechanoreceptive fields were encountered in all portions of the stomach, both superficially and in deeper layers. Splanchnic afferent unit impulse activity was recorded continuously during basal conditions and in response to consecutive ic injections of saline and RX 77368 (15-30 min later; 1.5 or 3 ng). Basal discharge rates ranged from 0 to 154 impulses/min (median = 10.2 impulses/min). A majority of splanchnic single units with ongoing activity increased their mean discharge rate by >/=20% after ic injection of RX 77368 at either 1.5 ng (6/10 units; median increase 63%) or 3 ng (19/24 units; median increase 175%). Five units lacking impulse activity in the 5-min before ic RX 77368 (3 ng) were also excited, with the onset of discharge occurring within 1.0-5.0 min postinjection. In units excited by ic RX 77368, peak discharge occurred 15.6 +/- 1.3 min after injection and was followed by a decline to stable activity levels +info)

Central venous catheter exchange by guidewire for treatment of catheter-related bacteraemia in patients undergoing BMT or intensive chemotherapy. (4/3799)

Current guidelines for the treatment of catheter-related bacteraemia (CRB) advise against central venous catheter (CVC) exchange because of the potential risk of prolonging infection. However, there are no consistent data proving this recommendation. We evaluated prospectively the usefulness of CVC exchange by guidewire for the treatment of CRB in patients undergoing BMT or intensive chemotherapy. CVC exchange was considered when fever and positive blood cultures persisted after 2 days of adequate antimicrobial therapy and no potential source of bacteraemia other than CVC could be identified. The guidewire exchange was preceded and followed by a slow infusion of adequate antimicrobial therapy. Bacteraemia was confirmed as catheter-related by demonstrating concordance between isolates from the tip and blood cultures by pulsed-field electrophoresis of genomic DNA. This procedure was performed in 19 episodes of bacteraemia during a 1-year period. Fourteen episodes (74%) were catheter-related and 71% of these were due to coagulase-negative staphylococci. Guidewire replacement was accomplished uneventfully 4 days after development of sepsis (range 3-6). In all cases, clinical signs of sepsis disappeared in less than 24 h after replacement. Definitive catheter withdrawal was carried out a median of 16 days (range 3-42) after guidewire exchange; in all cases, the tip culture was negative. We conclude that CVC replacement by guidewire under adequate antimicrobial therapy may be a reasonable option for the treatment of CRB when antimicrobial therapy alone has been unsuccessful.  (+info)

Tranilast suppresses vascular chymase expression and neointima formation in balloon-injured dog carotid artery. (5/3799)

BACKGROUND: Activation of vascular chymase plays a major role in myointimal hypertrophy after vascular injury by augmenting the production of angiotensin (ANG) II. Because chymase is synthesized mainly in mast cells, we assumed that the chymase-dependent ANG II formation could be downregulated by tranilast, a mast cell-stabilizing antiallergic agent. We have assessed inhibitory effects of tranilast on neointima formation after balloon injury in the carotid artery of dogs, which share a similar ANG II-forming chymase with humans, and further explored the pathophysiological significance of vascular chymase. METHODS AND RESULTS: Either tranilast (50 mg/kg BID) or vehicle was orally administered to beagles for 2 weeks before and 4 weeks after balloon injury. Four weeks after the injury, remarkable neointima was formed in the carotid arteries of vehicle-treated dogs. Chymase mRNA levels and chymaselike activity of vehicle-treated injured arteries were increased 10.2- and 4.8-fold, respectively, those of uninjured arteries. Angiotensin-converting enzyme (ACE) activity was slightly increased in the injured arteries, whereas ACE mRNA levels were not. Tranilast treatment completely prevented the increase in chymaselike activity, reduced the chymase mRNA levels by 43%, and decreased the carotid intima/media ratio by 63%. In vehicle-treated injured arteries, mast cell count in the adventitia showed a great increase, which was completely prevented by the tranilast treatment. Vascular ACE activity and mRNA levels were unaffected by tranilast. CONCLUSIONS: Tranilast suppressed chymase gene expression, which was specifically activated in the injured arteries, and prevented neointima formation. Suppression of the chymase-dependent ANG II-forming pathway may contribute to the beneficial effects of tranilast.  (+info)

Results of three to 10 year follow up of balloon dilatation of the pulmonary valve. (6/3799)

BACKGROUND: The results of immediate and short term follow up of balloon dilatation of the pulmonary valve have been well documented, but there is limited information on long term follow up. OBJECTIVE: To evaluate the results of three to 10 year follow up of balloon dilatation of the pulmonary valve in children and adolescents. SETTING: Tertiary care centre/university hospital. DESIGN: Retrospective study. METHODS AND RESULTS: 85 patients (aged between 1 day and 20 years, mean (SD) 7.0 (6.4) years) underwent balloon dilatation of the pulmonary valve during an 11 year period ending August 1994. There was a resultant reduction in the peak to peak gradient from 87 (38) to 26 (22) mm Hg. Immediate surgical intervention was not required. Residual gradients of 29 (17) mm Hg were measured by catheterisation (n = 47) and echo Doppler (n = 82) at intermediate term follow up (two years). When individual results were scrutinised, nine of 82 patients had restenosis, defined as a peak gradient of 50 mm Hg or more. Seven of these patients underwent repeat balloon dilatation of the pulmonary valve: peak gradients were reduced from 89 (40) to 38 (20) mm Hg. Clinical evaluation and echo Doppler data of 80 patients showed that residual peak instantaneous Doppler gradients were 17 (15) mm Hg at long term follow up (three to 10 years, median seven), with evidence for late restenosis in one patient (1.3%). Surgical intervention was necessary to relieve fixed infundibular stenosis in three patients and supravalvar pulmonary stenosis in one. Repeat balloon dilatation was performed to relieve restenosis in two patients. Actuarial reintervention free rates at one, two, five, and 10 years were 94%, 89%, 88%, and 84%, respectively. Pulmonary valve regurgitation was noted in 70 of 80 patients at late follow up, but neither right ventricular dilatation nor paradoxical interventricular septal motion developed. CONCLUSIONS: The results of late follow up of balloon dilatation of the pulmonary valve are excellent. Repeat balloon dilatation was performed in 11% of patients and surgical intervention for subvalvlar or supravalvar stenosis in 5%. Most patients had mild residual pulmonary regurgitation but right ventricular volume overload was not required. Balloon dilatation is the treatment of choice in the management of moderate to severe stenosis of the pulmonary valve. Further follow up studies should be undertaken to evaluate the significance of residual pulmonary regurgitation.  (+info)

Balloon-artery interactions during stent placement: a finite element analysis approach to pressure, compliance, and stent design as contributors to vascular injury. (7/3799)

Endovascular stents expand the arterial lumen more than balloon angioplasty and reduce rates of restenosis after coronary angioplasty in selected patients. Understanding the factors involved in vascular injury imposed during stent deployment may allow optimization of stent design and stent-placement protocols so as to limit vascular injury and perhaps reduce restenosis. Addressing the hypothesis that a previously undescribed mechanism of vascular injury during stent deployment is balloon-artery interaction, we have used finite element analysis to model how balloon-artery contact stress and area depend on stent-strut geometry, balloon compliance, and inflation pressure. We also examined superficial injury during deployment of stents of varied design in vivo and in a phantom model ex vivo to show that balloon-induced damage can be modulated by altering stent design. Our results show that higher inflation pressures, wider stent-strut openings, and more compliant balloon materials cause markedly larger surface-contact areas and contact stresses between stent struts. Appreciating that the contact stress and contact area are functions of placement pressure, stent geometry, and balloon compliance may help direct development of novel stent designs and stent-deployment protocols so as to minimize vascular injury during stenting and perhaps to optimize long-term outcomes.  (+info)

How can videolaparoscopy be used in a peritoneal dialysis programme? (8/3799)

BACKGROUND: Recently videolaparoscopy is considered to have a vaster use in surgery due to the undeniable benefits such as low operatory traumatism, quick recovery of canalization, a short stay in the hospital and minor scarring. METHODS: Forty patients were treated with peritoneal dialysis (PD); 15 videolaparoscopic procedures were performed on 13 patients before starting PD and two during the course of PD. The videolaparoscopy procedure was started by inducing pneumoperitoneum after initiation of general anaesthesia through endotracheal intubation. RESULTS: Peritoneal catheter placement was carried out in 11 ESRD patients showing abdominal scars due to previous laparotomies; their abdominal condition precluded safe PC placement using conventional non-laparoscopic procedures with local anaesthesia. Release of adhesions was performed only in two patients. Videolaparoscopy was also used in three patients for elective cholecystectomy; 2/3 underwent concomitant PC insertion. One patient was submitted to cholecystectomy during the course of CAPD; following the procedure we left the peritoneum dry overnight and then we started temporary IPD, using small volumes, avoiding haemodialysis (HD). Regular CAPD was resumed 6 days later. Finally, videolaparoscopy was also used for diagnostic purpose i.e. in one 59-year-old man patient who had a peritoneal catheter obstruction. Repeated rescue attempts using urokinase solution to irrigate the peritoneal catheter had been used in vain attempts prior to the procedure. CONCLUSIONS: Videolaparoscopy proves to be a useful tool in a PD programme. Firstly, it may be used as a technique for catheter implantation, not as a routine procedure but in patients with extensive abdominal scars due to previous laparotomy, i.e. at risk for accidental viscera perforation due to the possibility of adhesions between intestinal loops and parietal peritoneum. Secondly, videolaparoscopy used for abdominal surgery allows the resumption of PD immediately after surgical procedure and thus avoiding HD. Videolaparoscopy is fundamental for diagnosis and rescue of catheter dysfunction and has an integral role in the successful management of these patients in extending catheter function and permitting safe replacement of peritoneal catheter if it becomes necessary. Along with the undeniable advantages, remains the disadvantages that it must be carried out by an expert surgeon in an operating theatre while the patient is under general anaesthesia.  (+info)

*Transradial catheterization

Cardiac catheterization Major improvement of percutaneous cardiovascular procedure outcomes with radial artery catheterisation ... Transradial cardiac catheterization in elderly patients. Catheterization and Cardiovascular Interventions 2000; 51: 287-290 C-H ... As after catheterization through femoral approach patient is generally required to lay flat with immobilization of the leg for ... Transradial catheterization is typically a safer, more cost-effective and patient friendly procedure. Studies show a lower rate ...

*Urinary catheterization

Intermittent self-catheterization is performed by the patient four to six times a day, using a clean technique in most cases. ... Catheterization allows the patient's urine to drain freely from the bladder for collection. It may be used to inject liquids ... In urinary catheterization a latex, polyurethane, or silicone tube known as a urinary catheter is inserted into a patient's ... The duration of catheterization can have significance. Incontinent patients commonly are catheterized to reduce their cost of ...

*Coronary catheterization

... is performed in a catheterization lab, usually located within a hospital. With current designs, the ... During coronary catheterization (often referred to as a cath by physicians), blood pressures are recorded and X-ray motion ... Heart catheterization was first performed in 1929 when the German physician Werner Forssmann inserted a plastic tube in his ... A coronary catheterization is a minimally invasive procedure to access the coronary circulation and blood filled chambers of ...

*Cardiac catheterization

There are two major categories of cardiac catheterization: Left heart catheterization allows for direct intervention in cases ... Subsets of this technique are mainly coronary catheterization, involving the catheterization of the coronary arteries, and ... MedlinePlus Medical Encyclopedia: Cardiac catheterization eMedicine: Cardiac Catheterization (Left Heart) The Parachute Implant ... Cardiac catheterization (heart cath) is the insertion of a catheter into a chamber or vessel of the heart. This is done both ...

*Intermittent catheterisation

... at regular intervals avoids such negative effects of continuous long term catheterisation, but ... Intermittent catheterisation is considered the 'gold-standard' for medical bladder emptying. Intermittent catheterization can ... Intermittent catheterisation is a medical technique used in conditions where patients need either short term catheter-based ... But such continuous catheterisation can lead to problems like urinary tract infections (UTI), urethral strictures or male ...

*History of invasive and interventional cardiology

Cardiac catheterization was first performed when Werner Forssmann, in 1929, created an incision in one of his left antecubital ... The history of invasive cardiology begins with the development of cardiac catheterization in 1711, when Stephen Hales placed ... For their work in the discovery of cardiac catheterization and hemodynamic measurements, Cournand, Forssmann, and Richards ... Cournand A (1975). "Cardiac catheterization; development of the technique, its contributions to experimental medicine, and its ...

*Registered Cardiovascular Invasive Specialist

To be registry eligible, they must have worked in the Cardiac Catheterization Laboratory for two years or have graduated from a ... A Registered Cardiovascular Invasive Specialist or RCIS assists a cardiologist with cardiac catheterization procedures in the ...

*Lung transplantation

... cardiac catheterization; echocardiogram. Before 2005, donor lungs within the United States were allocated by the United Network ...

*Coarctation of the aorta

This is done in a cardiac catheterization laboratory. Typically taking two to three hours, the procedure may take longer but ...

*British Columbia Ambulance Service

... urinary catheterization; arterial line management and central venous pressure monitoring; infusion of blood products; point of ...

*Swedish Covenant Hospital

The procedures and programs in the Cardiac Catheterization Laboratory include: Cardiac catheterization, angioplasty and stents ... "Cardiac Catheterization Laboratory". Swedish Covenant Hospital. "About Physical Therapy Program". Swedish Covenant Hospital. " ... the Cardiac Catheterization Lab and the Chest Pain Center. In November 2009, Swedish Covenant Hospital received full ...

*Children's University Hospital - Damascus

A cardiac catheterization. - Devices at the Center of Pediatric Cardiac Surgery and Bone Marrow Transplant: Integral laboratory ...

*Wayne Memorial Hospital (Pennsylvania)

In 2016, several new services, including a helipad and a cardiac catheterization lab, were added to the hospital. On October 3 ... "Cardiac Catheterization & PCI". Wayne Memorial Hospital. Retrieved 18 October 2017. "Trauma center accreditation granted to one ...

*Endothelial dysfunction

"Catheterization Cardiovascular Interventions". Catheterization and Cardiovascular Interventions. 82: E184-E191. doi:10.1002/ccd ... the use of acetylcholine injections to test vasodilation is now safely used for procedures where arterial catheterization is ... themselves but this is invasive and not normally conducted unless there is a clinical reason for intra-coronary catheterization ...

*Impella

2007). "Effects of left ventricular unloading by Impella recover LP2.5 on coronary hemodynamics". Catheterization and ...

*Ashok Seth

"Catheterization and Cardiovascular Intervention". 2015. Retrieved 3 February 2015. "Euro Intervention". 2015. Retrieved 3 ... Catheterization and Cardiovascular Intervention and Euro Intervention journals. Seth is the first Asian to be elected to the ... Catheterization and Cardiovascular Diagnosis. 37: 268-70. doi:10.1002/(SICI)1097-0304(199603)37:3. 3.0.CO;2-E. PMID 8974804. " ... Catheterization and Cardiovascular Diagnosis. 37: 268-70. doi:10.1002/(SICI)1097-0304(199603)37:3. 3.0.CO;2-E. PMID 8974804. ...

*Cardiogenesis

Catheterization and Cardiovascular Interventions. 75 (6): 886-91. doi:10.1002/ccd.22431. PMID 20432394. Cardiogenesis Website ...

*Clinical peer review

Catheterization and Cardiovascular Interventions. 71 (7): 1000-1. doi:10.1002/ccd.21544. PMID 18383176. Drew, David. Little ...

*Redmond Burke

... interventional catheterization, and minimally invasive surgery. The human side of Burke's congenital heart team at Miami ... Catheterization and Cardiovascular Interventions. 71 (6): 831-841. doi:10.1002/ccd.21526. Retrieved 12 December 2014. Burke, ... where the surgeons operated in the catheterization laboratory, and the cardiologists performed interventions in the operating ...

*Migraine treatment

Bhindi, R.; Ormerod, O. (Apr 2008). "Rebound increase in migraines following PFO closure". Catheterization and Cardiovascular ... Catheterization and Cardiovascular Interventions. 69 (1): 9-9. doi:10.1002/ccd.20931. ISSN 1522-1946. PMID 17143907. Wilmshurst ...

*Shepherd's crook

Catheterization and Cardiovascular Diagnosis. 15 (3): 189-191. doi:10.1002/ccd.1810150313. ISSN 1097-0304. ...

*Urinary retention

... clean intermittent self catheterization). Intermittent catheterization performed at the hospital is a sterile technique. ... Self catheterization requires doing the procedure every 3 or 4 hours 4-6 times a day. For acute urinary retention, treatment ... "Clean Intermittent Self-Catheterization". Archived from the original on 2017-07-16. Seth, Jai H.; Haslam, Collette; Panicker, ... Intermittent catheterization can be done by a health care professional or by the person themselves ( ...

*Ventricular septal defect

... cardiac catheterization, can be performed. Although there are several classifications for VSD, the most accepted and unified ... Catheterization and Cardiovascular Interventions. 55 (3): 355-361. doi:10.1002/ccd.10124. PMID 11870941. Hoffman, JI; Kaplan, S ...

*Gelastic seizure

Catheterization and Cardiovascular Diagnosis. 42 (2): 242. doi:10.1002/(SICI)1097-0304(199710)42:2. 3.0.CO;2-M. PMID 9328725. ...

*Vascular closure device

Catheterization and Cardiovascular Interventions. 70:627-633 (2007) Hon LQ, Ganeshan A, Thomas SM, Warakaulle D, Jagdish J, ... Cardiovascular procedures requiring catheterization include diagnostic procedures that help diagnose diseased blood vessels and ... hemostasis of the small hole in the artery after a cardiovascular procedure of endovascular surgery requiring a catheterization ...
The purpose of this study was to compare contemporary results of balloon dilatation and surgery for valvar aortic stenosis in infants and children in the five years between August 1988 and October 1993. Thirty four children underwent attempted balloon valvuloplasty (age 1 day-16 years, weight 1720 g-68 kg) (group 1), eight of whom were neonates with critical aortic stenosis. During the same period, 17 children underwent direct surgical valvotomy (group 2) (seven neonates). Successful balloon valvuloplasty was achieved in 33 (97%) with immediate reduction in the instantaneous systolic pressure gradient from 82 to 34 mm Hg (mean). There were two deaths in this group (both neonates), the second in a preterm neonate from necrotising enterocolitis. Complications requiring intervention in group 1 were aortic regurgitation in one and femoral artery injury in two. Follow up from four months to five years showed sustained results in most cases. There were two neonatal deaths in the surgical group. When ...
Percutaneous balloon dilatation was attempted in 15 consecutive neonates (mean age 7.3 (range 1-27) days and weight 3.2 (range 2.5-4.1) kg) with critical stenosis of the pulmonary valve. Dilatation was successful in 11 (73%) patients. The mean balloon to annulus ratio was 1.1 (range 0.6-1.77). The ratio of right ventricle to femoral artery systolic pressure decreased from a mean (1 SD) of 1.4 (0.32) before to 0.8 (0.24) after dilatation and the transvalvar gradient decreased from 81 (29.7) mm Hg before to 33 (27.7) mm Hg after dilatation. All four (27%) patients in whom dilatation was unsuccessful underwent surgical valvotomy. Complications of balloon dilatation occurred in three (20%) patients; these included retroperitoneal haematoma (one) and iliofemoral venous occlusion (two). In one (7%) patient severe hypoxia and hypotension developed when the valve was crossed with a guide wire and balloon catheter. Despite successful dilatation he died 7 days after the procedure. During a mean (1 SD) ...
Define Coronary artery balloon dilation. Coronary artery balloon dilation synonyms, Coronary artery balloon dilation pronunciation, Coronary artery balloon dilation translation, English dictionary definition of Coronary artery balloon dilation. angioplasty balloon angioplasty n. pl. an·gi·o·plas·ties Surgical repair of a blood vessel, especially the widening of a narrowed blood vessel by means of...
China PTCA Balloon Dilatation Catheter, Find details about China Ptca Balloon Dilatation Cathete, Ptca Balloon Catheter from PTCA Balloon Dilatation Catheter - Yilson Medical Technology Co., Ltd.
Why is the doctor performing this procedure?. To open up a peripheral artery that is narrowed or blocked by plaque build-up (Atherosclerosis), and to structurally support that opening by permanently placing a Metal Stent within the artery.. What is the procedure?. A Stent is a mesh-like metal cylinder. Stent placement is often part of a PTA (Angioplasty) procedure. As in Angioplasty, a catheter is inserted into an artery - usually in the groin - but sometimes in the arm or wrist. The catheter is advanced to the blocked peripheral artery, and a series of x-ray pictures are taken to clearly visualize the artery that is narrowed. Then a balloon-tipped catheter is advanced into the narrowed artery. Inside the artery, the balloon is inflated and deflated several times, compressing the plaque against the artery wall and widening the artery so blood flow improves. This balloon-tipped catheter is removed, and a separate balloon-tipped catheter, with a Stent attached, is advanced to the area that was ...
The present invention provides a catheter balloon, and balloon catheter incorporating the catheter balloon, useful in medical dilation procedures. The catheter balloon includes at least one microscalpel operatively disposed on an outer surface thereof. The microscalpel may advantageously be operatively disposed relative to a power source so as to be controllably activatable. Also provided are methods of making the inventive balloon and/or catheter as well as methods of using the inventive catheter in a dilation/incising treatment.
Definition of balloon dilatation in the Definitions.net dictionary. Meaning of balloon dilatation. What does balloon dilatation mean? Information and translations of balloon dilatation in the most comprehensive dictionary definitions resource on the web.
NATICK, Mass., June 20, 2011 /PRNewswire/ -- Boston Scientific Corporation (NYSE: BSX) today announced the global launch of its Mustang™ PTA Balloon Catheter, a highly deliverable 0.035 inch percutaneous transluminal angioplasty (PTA) catheter designed for a wide range of peripheral angioplasty procedures. The Company plans to launch the product immediately in the U.S., Europe and other international markets.. Boston Scientific developed the Mustang PTA Balloon Catheter to meet physician needs for a low-profile, high-pressure balloon catheter in a wide range of sizes. It is the first to use Boston Scientifics NyBax™ Balloon Material, a proprietary co-extrusion of nylon and Pebax® polymers engineered to provide high-pressure, non-compliant dilatation in a low-profile balloon. The Mustang Balloon Catheter offers excellent rated burst pressure (up to 24 atmospheres) and is the only 7 x 200 mm balloon compatible with a 5 French introducer sheath. Available in 203 sizes, it provides the ...
NATICK, Mass., May 25 /PRNewswire-FirstCall/ -- Boston Scientific Corporation (NYSE: BSX) today announced CE Mark and U.S. Food and Drug Administration (FDA) approval of its NC Quantum Apex™ PTCA Dilatation Balloon Catheter. The Company plans to launch the product in European markets this week and in the U.S. next month. The NC Quantum Apex Catheter is a high-performance, post-dilatation balloon catheter developed specifically to address physicians needs in optimizing coronary stent deployment. It represents the next generation of balloon catheter technology, and is designed to deliver enhanced performance through the use of a new Bi-Segment™ Inner Shaft for improved trackability and a re-designed tip for greater flexibility(1). It is available in a wide array of balloon diameters from 2.0 to 5.0 mm, with balloon lengths ranging from 6 to 30 mm. The Monorail® catheter platform will be available worldwide and both the Monorail and Over-the-Wire (OTW) catheter platforms will be available in ...
Balloon catheters having the strength and maximum inflated diameter characteristics of an angioplasty balloon and having the recovery characteristics during deflation of an elastic embolectomy balloon. The balloon catheter can be made in very small sizes and has a lubricious and chemically inert outer surface. The balloon catheter is easy to navigate through tortuous passageways, is capable of rapid inflation and deflation and has high burst strengths. Balloon covers having these same characteristics are also described for use with conventional embolectomy balloons or angioplasty balloons.
The latest market report published by Credence Research, Inc. "Balloon Catheters Market - Growth, Future Prospects, Competitive Analysis, 2017 - 2025," the global balloon catheters market was valued at US$ 2,989.0 Mn in 2016, and is expected to reach US$ 5,457.2 Mn by 2025 expanding at a CAGR of 6.78 % from 2017 to 2025.. Browse the full report Balloon catheters Market - Growth, Future Prospects, Competitive Analysis, 2017 - 2025 report at http://www.credenceresearch.com/report/balloon-catheters-market. Market Insights:. The balloon ends of the balloon catheters is very important aspect as it might cause trauma to the vascular endothelial tissues during inflation and hence rounded balloons are preferred more in comparison to other shapes. Two types of balloons are used for surgical procedures, first is the high pressure non elastic balloons and the second is low pressure elastic balloons. These balloons are categorized as non-compliant, semi compliant and high compliant on the basis of the ...
The latest market report published by Credence Research, Inc. "Balloon Catheters Market - Growth, Future Prospects, Competitive Analysis, 2017 - 2025," the global balloon catheters market was valued at US$ 2,989.0 Mn in 2016, and is expected to reach US$ 5,457.2 Mn by 2025 expanding at a CAGR of 6.78 % from 2017 to 2025.. Browse the full report Balloon catheters Market - Growth, Future Prospects, Competitive Analysis, 2017 - 2025 report at http://www.credenceresearch.com/report/balloon-catheters-market. Market Insights:. The balloon ends of the balloon catheters is very important aspect as it might cause trauma to the vascular endothelial tissues during inflation and hence rounded balloons are preferred more in comparison to other shapes. Two types of balloons are used for surgical procedures, first is the high pressure non elastic balloons and the second is low pressure elastic balloons. These balloons are categorized as non-compliant, semi compliant and high compliant on the basis of the ...
A balloon catheter can include an actively steerable element for adjusting the configuration of the balloon after placement at a target location. By coupling the actively steerable element to the balloon, any articulation of the actively steerable element will also re-configure the position of the balloon, thereby enabling greater control over procedures that make use of such a balloon catheter. The active steering capability can also enhance the material manipulation capabilities of the balloon catheter, and enable operations and actions that are not possible with a non-steerable balloon catheter.
Balloon catheters market to gain rapid traction, with increasing consumer inclination towards minimally invasive procedures. The Global Balloon Catheters Market was valued at US$ 2,833.4 million in 2016 and is projected to expand at a CAGR of 7.7% during the forecast period (2017-2025), as highlighted in a new report published by Coherent Market Insights. Increase in demand for minimally invasive procedures, in turn is projected to support growth of balloon catheters market over the forecast period.. Manufacturers are focusing on product innovation to tap into emerging market. For instance, OrbusNeich, a leading manufacturer of medical devices for vascular disease, launched its 2 balloon dilatation catheters Sapphire II PRO and the Sapphire NC Plus. These products are indicated for various applications such as balloon dilatation of the stenotic portion of a coronary artery or bypass graft stenosis in patients having coronary ischemia for the purpose of improving myocardial perfusion, also in ...
Balloon catheters market to gain rapid traction, with increasing consumer inclination towards minimally invasive procedures. The Global Balloon Catheters Market was valued at US$ 2,833.4 million in 2016 and is projected to expand at a CAGR of 7.7% during the forecast period (2017-2025), as highlighted in a new report published by Coherent Market Insights. Increase in demand for minimally invasive procedures, in turn is projected to support growth of balloon catheters market over the forecast period.. Manufacturers are focusing on product innovation to tap into emerging market. For instance, OrbusNeich, a leading manufacturer of medical devices for vascular disease, launched its 2 balloon dilatation catheters Sapphire II PRO and the Sapphire NC Plus. These products are indicated for various applications such as balloon dilatation of the stenotic portion of a coronary artery or bypass graft stenosis in patients having coronary ischemia for the purpose of improving myocardial perfusion, also in ...
Balloon catheters market to gain rapid traction, with increasing consumer inclination towards minimally invasive procedures. The Global Balloon Catheters Market was valued at US$ 2,833.4 million in 2016 and is projected to expand at a CAGR of 7.7% during the forecast period (2017-2025), as highlighted in a new report published by Coherent Market Insights. Increase in demand for minimally invasive procedures, in turn is projected to support growth of balloon catheters market over the forecast period.. Manufacturers are focusing on product innovation to tap into emerging market. For instance, OrbusNeich, a leading manufacturer of medical devices for vascular disease, launched its 2 balloon dilatation catheters Sapphire II PRO and the Sapphire NC Plus. These products are indicated for various applications such as balloon dilatation of the stenotic portion of a coronary artery or bypass graft stenosis in patients having coronary ischemia for the purpose of improving myocardial perfusion, also in ...
A method of manufacturing a folding balloon catheter for use as an angioplasty device, wherein the balloon catheter has atherotomes (21) attached to the exterior of the balloon (12), includes inflating a balloon to its expanded state. A plurality of patches (18) of a curable elastomer adhesive are then applied at selected locations on the outside surface of the inflated balloon, and an atherotome is attached to the balloon at each of the patches. The inflated balloon, with attached atherotomes, is then partially cured to more firmly attach the atherotomes to the balloon. The balloon is then deflated to a contracted configuration in a manner which forms a plurality of flaps (54) in the balloon between the atherotomes. The deflated balloon is then cured to completion to establish a permanent set in the flaps which enable the balloon catheter to be repeatedly inflated and deflated during operation between predictable expanded and contracted configurations.
A novel catheter technique for patching holes in the heart may make it possible for many patients to avoid surgery altogether and others to regain enough strength to safely undergo surgical repair at a later date.
A balloon dilatation catheter, usable in percutaneous transluminal angioplasty, is formed so that portions of the catheter both distally and proximally of the balloon have varyinq degrees of radiopacity. A portion of the catheter distally of the balloon presents a dark image under fluoroscopy while a portion located proximally of the balloon displays a moderately radiopaque image under fluoroscopy. The portion of the catheter in the region of the balloon may have a moderate, light or no radiopaque means.
A method and system for forming a medical device component having a section with a reduced wall thickness, and the device component formed thereby. The method generally comprises rotating a medical device component while a material removal device is placed into contact with a section of the rotating component, to thereby remove material therefrom. In one embodiment, the medical device component is a catheter balloon in which at least one of the proximal and distal shaft sections of the balloon is thinned according to the method of the invention. In another embodiment, the component is a polymeric tube, including polymeric tubes useful in forming a distal tip or catheter shaft section of a catheter.
But, if you recall, I stated many years ago that randomized trials were premature because there was no standard accepted best practice of the procedure, a necessary consition in which to judge the treatment. As in his early papers, the treatment was inadequate. The high restenosis rate in those early papers indicated that technical modifications were necessary. In this new study, they used compliant low pressure balloons to start and then only went to they thought that was necessary. They did not use IVUS and thus were guessing on balloon size since venography is inaccurate in estimating balloon size. They rarely used high pressure balloons and, when they did, they used balloon sizes that I am quite confident did not expand the lesions to effect ively break the stenosis. Although Zamboni alluded to the effects of the surrounding venous structures such as the dural sinuses, the renal vein and the iliac vein, these were not studied and their role in venous congestion should not be overlooked. A ...
A method of extravasated drug delivery is disclosed, including inserting a catheter with a first balloon, a second balloon, and a third balloon positioned between the first and second balloons and having a wall with an abrasive outer surface, into a bodily cavity, inflating the first and second balloons to create a chamber therebetween, stimulating a flow of blood cells by inflating the third balloon until the abrasive outer surface abrades tissue, and delivering the agent to the chamber. A balloon catheter system is also provided including a balloon having a wall with an abrasive outer surface for abrading tissue, a catheter having a first lumen for supplying fluid to the balloon to inflate the balloon such that the abrasive surface stimulates a flow of blood cells, and a second lumen for supplying an agent to tissue.
An angioplasty balloon catheter and method of making and using the same. The balloon catheter may include a catheter shaft and a balloon coupled to the shaft. The balloon may include one or more cutting edges or member and may include one or more wings. The wings may include an undulating surface.
A steerable balloon catheter including a balloon catheter supported by a steerable guidewire having a deflectable distal tip. The guidewire comprises a longitudinal hypotube and a spring coil attached to the distal end of the hypotube and includes a longitudinally movable deflection member which is attached to the distal end of the spring coil and a tip retaining member which extends from the distal end of the hypotube to the distal end of the spring coil for providing very precise deflection of the distal tip of the balloon catheter.
China Dilation Balloon Catheter catalog of Dilation Balloon Catheter, Changmei Medtech Dilation Balloon Catheter provided by China manufacturer - Jiangsu Changmei Medtech Co., Ltd., page1.
An innerless balloon catheter controls fluid flow past the guide wire at the distal end of the catheter by a combination of flow resistance and a pressure responsive valve. The catheter includes a shaft which carries an inflatable balloon at its distal end. The shaft has a lumen therethrough with the lumen being in fluid communication with the balloon interior for inflating and deflating the balloon via the shaft lumen. The catheter further includes a lumen extension through the balloon, with the lumen extension being in fluid communication with the shaft lumen. A guide wire extends through the shaft lumen and the lumen extension and out the distal end of the balloon. The resistance to fluid flow past the guide wire in the lumen extension is substantially greater than the resistance to fluid flow between the shaft lumen and the balloon interior. A valve member is responsive to the pressure in the balloon interior for blocking fluid flow through the lumen extension during continuing inflation and at
To perform a prostatectomy, a directionally illuminating balloon catheter enters a bladder. The catheter has a multi-lumen shaft. The balloon defines an interior fluidically connected to a balloon inflation lumen and is inflated therethrough. The balloon comprises a light source, a light-radiating surface adjacent the shaft-balloon junction, and a substantially opaque surface disposed at a portion of the balloon other than the light-radiating surface such that the integrated light source illuminates a proximal half of the environment outside the balloon. The balloon is inflated while in the bladder. Light from the light source is directed out through the light-radiating surface to illuminate at least a portion of a procedure area at the bladder-prostate junction. With the light illuminating the portion of the procedure area, at least a portion of a prostatectomy is performed at the portion of the procedure area.
Imagine a broad piece of brittle wax, lubricated, obscured at its bottom (as it were) end by tender tissues; slippery by its nature, ungraspable by its geometry. I sat between the mans legs for a goodly amount of time, trying everything of which I could think: big tongs chipped off pieces of wax and the candle squirted headward. I slid a balloon-tipped catheter along side and as high as I could wriggle it, inflated the balloon and withdrew without success. I heated a round-tipped probe thinking I could melt it in, let things cool, and pull it out. Because the north end of the candle was well above the mans ribs, I couldnt apply counter pressure to squeeze it downward. I could stretch his sphincter enough to insert most of my fingers, but the sheer size of a hand grasping a three-inch wide waxy thing and sliding back out was impossible. Even given a certain pre-existing laxity ...
Imagine a broad piece of brittle wax, lubricated, obscured at its bottom (as it were) end by tender tissues; slippery by its nature, ungraspable by its geometry. I sat between the mans legs for a goodly amount of time, trying everything of which I could think: big tongs chipped off pieces of wax and the candle squirted headward. I slid a balloon-tipped catheter along side and as high as I could wriggle it, inflated the balloon and withdrew without success. I heated a round-tipped probe thinking I could melt it in, let things cool, and pull it out. Because the north end of the candle was well above the mans ribs, I couldnt apply counter pressure to squeeze it downward. I could stretch his sphincter enough to insert most of my fingers, but the sheer size of a hand grasping a three-inch wide waxy thing and sliding back out was impossible. Even given a certain pre-existing laxity ...
This is fat quarter or 18 x 22 of an absolutely cute fabric with Blue Care Bears on Balloons Hearts.Really nice! Perfect for any project - quilts, c
An inflatable balloon (14) for a catheter (10) includes a coating (15) which causes the balloon to prefer a predetermined, low profile configuration, such as a trifold configuration (40), when deflated. The balloon has a wall (13) which has an exterior polymeric coating (15). The coating (15) is set while the balloon is in the predetermined low-profile deflated configuration so that after inflation, the coating acts to urge the balloon to return to the low profile configuration as the balloon is deflated.
A balloon catheter is provided which includes a flexible tube on one end of which a balloon is mounted to be inflated by means of the tube, which balloon has an annular restriction in its middle region in a plane approximately perpendicular to the tube axis. The balloon is produced in the form of a bag inside which the end of the tube is engaged, the opening of the bag being fixed to the outer wall of the tube, and the distal end of the balloon projects beyond the distal tip of the catheter tube to provide a cushioning region at the tip of the catheter assembly. A procedure for making the balloon is also described.
This channel includes news and new technology innovations for angioplasty balloon catheters (PTA). In addition to POBA, this section includes news about valvuloplasty balloons and specialty cutting balloon.
The end cap is preferably formed of a relatively high durometer material with an inner surface on an outer surface of the shaft and on an outer surface of the balloon skirt section, and contacts a compression member on the balloon outer surface. The configuration prevents or inhibits failure at the balloon seals which otherwise results from the compression member moving or the balloon pulling off the shaft and out from under the compression member during inflation of the balloon. As a result, the balloon catheter of the invention has an improved consistent burst pressure and/or failure mode.
Translation of balloon catheter | Balmes and colleagues also performed peripheral airway lavage using a modified balloon catheter to isolate specific airw
A balloon catheter comprises a catheter shaft and a balloon carried on the shaft, an inflation lumen being provided. The balloon comprises a plurality of holes of a size to permit medication delivered through the lumen to pass outwardly through the holes. The balloon carries on an outer surface a substantially hydrophilic, tubular microporous membrane covering the holes, to break up streams of flowing medication.
NephroMax™ High Pressure Nephrostomy Balloon Catheter is designed for radial dilatation of the nephrostomy tract and convenient placement of a working sheath.
Balloon catheter comprising an elongate distal section and a flexible and expandable balloon accommodating said distal section, further comprising means for the supply of a pressure medium for expansi
A perfusion balloon catheter includes an inflatable balloon formed by a series of loops of a flexible, inflatable tube in a generally cooperative tubular shape. The loops are supported by a coiled sup
Learn more about AngioSculpt XL PTA scoring balloon catheter. View specifications, download support documents and discover related products.
This report studies Balloon Catheter in Global market, especially in North America, China, Europe, Southeast Asia, Japan and India, with production, revenu
BACKGROUND AND AIM OF THE STUDY: Aortic cannulation during cardiac surgery is a potential etiological factor for perioperative stroke. Cannulae may dislodge aortic-wall calcifications. In addition, the sharp edge of the cannula-tip may shear off vessel-wall tissue, which can be expelled into the lumen. This hypothesis concerning source of emboli was tested in a noncalcified aortic perfusion model.. METHODS: Pig aortas were pressurized and cannulated. Washout samples were collected before and after cannulation (n = 40). Particles were deposited onto a 10-microm filter and evaluated by microscopy and digital image analysis.. RESULTS: A higher incidence of particles generated by cannulation was noted as compared to before the maneuver (p , 0.001). This increase included small (,0.1 mm, p , 0.001) and intermediate-size particles (0.1-0.5 mm, p , 0.001). Particles above 0.5 mm were few and were not associated with cannulation.. CONCLUSIONS: Cannulation was a source of embolic material in the ...
The ALLUNGA PTA Balloon Catheter is a high performance balloon catheter for peripheral indication. The device features an ultra-low profile, semi-compliant balloon combined with a low profile tip.. Our focus is to enhance technology by developing devices with Low Entry Tip Profiles, guided by Ergonomic Pushability for your ease of use, especially in complex vessels, Tactile Trackability for enhanced Manoveuring.. As an essential feature the Dual Lumen Shaft Technology provides a rapid inflation/deflation time.. ...
The ALLUNGA PTA Balloon Catheter is a high performance balloon catheter for peripheral indication. The device features an ultra-low profile, semi-compliant balloon combined with a low profile tip.. Our focus is to enhance technology by developing devices with Low Entry Tip Profiles, guided by Ergonomic Pushability for your ease of use, especially in complex vessels, Tactile Trackability for enhanced Manoveuring.. ...
【市場調査レポート】バルーンカテーテルの世界市場ー産業および機会分析ー2016-2026:通常型バルーンカテーテル、カッティングバルーンカテーテル、スコアリングバルーンカテーテル、薬剤溶出型バルーンカテーテル、ステントグラフトバルーンカテーテル | 発行日:2016年9月26日 | 商品コード:FMI612026 | 発行/調査会社:Future Market Insights | Balloon Catheter Market: Global Industry Analysis and Opportunity Assessment, 2016-2026 | キーワード:グローバル、医療、バルーンカテーテル、通常型バルーンカテーテル、カッティングバルーンカテーテル、スコアリングバルーンカテーテル、薬剤溶出型バルーンカテーテル、ステントグラフトバルーンカテーテル [市場規模/動向/予測など世界の産業分析レポート販売のマーケットレポート.jp]
Looking for online definition of balloon catheterization in the Medical Dictionary? balloon catheterization explanation free. What is balloon catheterization? Meaning of balloon catheterization medical term. What does balloon catheterization mean?
METHODS AND RESULTS The purposes of this study are to determine the short- and intermediate-term outcomes of patients undergoing BMC after previous surgical commissurotomy, to compare these patients with those undergoing balloon mitral commissurotomy as an initial procedure, and to elucidate the multivariate determinants of acute procedural and clinical outcome. Of 738 patients undergoing BMC as part of the National Heart, Lung, and Blood Institute Balloon Valvuloplasty Registry, 133 underwent BMC after previous surgical mitral commissurotomy. Prospective data obtained included demographic, hemodynamic, echocardiographic, and clinical follow-up. BMC after previous surgical commissurotomy produced a significant reduction in transvalvular gradient from 13 +/- 5 to 6 +/- 3 mm Hg (p less than 0.0001) and an increase in mitral valve area from 1.0 +/- 0.3 to 1.8 +/- 0.8 cm2 (p less than 0.0001). BMC as an initial procedure increased valve area from 1.0 +/- 0.4 to 2.0 +/- 0.8 cm2 (p less than 0.0001) ...
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Treatment of tricuspid valve stenosis with percutaneous balloon valvuloplasty (costs for program #264865) ✔ Multispecialty Hospital PAN Clinic ✔ Department of Internal Medicine and Cardiology ✔ BookingHealth.com
Peak left ventricular pressure during balloon inflation was measured in 20 patients who underwent balloon valvuloplasty for severe aortic stenosis to define the determinants of ventricular pressure development in response to increased loading conditions. The peak left ventricular pressure ranged from 150 ± 5 to 386 ± 22 mm Hg (mean ± Sl), was reproducible in each patient with each balloon inflation (mean coefficient of variation 7.8%) and correlated with concurrent echocardiographic measurements of ejection fraction (r = 0.89, p = 0.0001) and mass/volume ratio in systole (r = 0.91, p = 0.0001) or diastole (r = 0.88, p = 0.0001). Thirteen patients with class II or more severe congestive heart failure had lower values for peak left ventricular pressure than did those without failure (225 ± 46 versus 305 ± 45 mm Hg, p = 0.002), whereas no difference in rest left ventricular systolic pressure was seen between the two groups. The measurement of peak left ventricular pressure was inversely ...
To analyze our experience with percutaneous aortic balloon valvuloplasty in newborn infants with aortic stenosis, emphasizing the extraordinary importance of myocardial perfusion. Over a 10-year-period, 21 neonates underwent percutaneous aortic balloon valvuloplasty. Age ranged from 2 to 27 days, weight ranged from 2.2 to 4.1 kg and 19 were males. All patients presented with congestive heart failure that could not be treated clinically. The onset of symptoms in the first week of life occurred in 9 patients considered as having critical aortic stenosis. Severe aortic stenosis occurred in 12 patients with the onset of symptoms in the second week of life. Mortality reached 100% in the patients with critical aortic stenosis. The procedure was considered effective in the 12 patients with severe aortic stenosis. Vascular complications included the loss of pulse in 12 patients and rupture of the femoral artery in 2 patients. Cardiac complications included acute aortic regurgitation in 2 patients and ...
Background-Long-term follow-up after percutaneous mitral commissurotomy (PMC) enables predictive factors of late results to be identified. Methods and Results-Late results of PMC were assessed in 1024 consecutive patients. Good immediate results, defined as valve area ≥1.5cm2 without mitral regurgitation ,2/4, were obtained in 912 patients (89%). These 912 patients were randomly split into 2 cohorts comprising 609 and 303 patients, used respectively to develop and validate a scoring system predicting late functional results. The 20-year rate of good functional results (survival without cardiovascular death, mitral surgery or repeat-PMC, and in NYHA class I or II) was 30.2±2.0%. A multivariable Cox model identified 7 predictive factors of poor late functional results: higher final mean gradient (p,0.0001), interaction between age and final mitral valve area (p,0.0001), showing that the impact of valve area decreases with age, interaction between sex and valve calcification (p,0.0001) showing ...
The use of flow-directed balloon-tipped pulmonary cath-eters for the monitoring of hemodynamic parameters in high-risk and critically ill patients is well
MSEC offers a variety of suction catheters, external catheters, foley catheters, intermittent straight catheters, intravenous catheters, irrigation trays kits, leg belly bags and suction catheters. In addition to our wide selection of suction catheters, you can choose from different types of products to customize your nedds for optimal comfort and practicality. Browse high quality suction catheters products available at reduced prices.
A randomized controlled double blinded study to investigate whether a specially designed double balloon catheter is more efficient than a foley catheter for cervical ripening and induction of birth.. 160 women with singleton term pregnancies with un ripe cervix and no contraindications for catheters will be included and randomized to either double og single balloon catheters for cervical ripening. Efficacy wil be assessed at removal of the catheter, measured by the amount of women where the cervix has become ripe enough for amniotomy.. Our hypothesis is that double balloon catheters will give a greater amount of women where amniotomy upon catheter removal is possible. Secondary outcomes as time from induction till birth, vaginal deliveries and complications during or after birth for the mother or child will also become recorded. ...
Browse our extensive catalog of new & used Intra Aortic Balloon Pump Equipment for sale or auction. Find any required new, refurbished or used Intra Aortic Balloon Pump Equipment or device.
Endotracheal suctioning is an important supportive treatment for patients requiring mechanical ventilation. Traditionally, in line suction catheters are changed every 24 hours to prevent the development of VAP. A paucity of research exists on the use of in line suction catheters and the optimal time for change. The study by Kollef et al is one of very few that attempts to evaluate a closed multiple use suction catheter system for outcomes of safety and cost.. The study was limited to 1 North American hospital. Results may have differed if other populations had been included in the study. Strengths of the study included the random allocation of eligible patients to groups and the attempt to keep caregivers blinded by doing scheduled in line suction changes during evening or night shifts. The diagnosis of VAP was acknowledged as a potential limitation of the study because it was based on clinical criteria and did not include quantitative cultures of lower respiratory tract secretions which would ...
Single balloon enteroscopy (SBE) procedure is a procedure for diagnosis and treatment in patients with abnormality of gastrointestinal tract especially for small bowel. It commonly performed either anterograde or retrograde intubation. The aim of the study is to compare and evaluate the success rate of propofol-balanced anaesthesia (PBA) for the SBE procedure between antegrade and retrograde intubation. The primary outcome variable of the study was the successful completion of the procedure. Failed procedure is defined as the procedure can not be completed by using PBS technique or sedation-related serious adverse events such as severe hypoxaemia (SpO2 |85% more than 3 min and can not relief by airway management), severe cardiorespiratory instability, are occurred. The secondary outcome variables were sedation-related complications, mortality rate and haemodynamic parameters.
Response: Letter to the Editor and Response: Comparison of Cutting Balloon Angioplasty and Percutaneous Balloon Angioplasty of Arteriovenous Fistula Stenosis: A Meta-Analysis and Systematic Review of Randomized Clinical Trials Academic Article ...
Intratracheal aspiration in a patient on ventilation is generally performed using a catheter. Of late, closed suction systems have been used more frequently than open systems. To remove tracheal secretions through the intratracheal tube, catheter suction is used, and the suction catheter may be of the closed- or open-type. The catheters are cleaned by flushing with sterile 0.9% saline, resulting in dropping of dew. This phenomenon is caused by some factors: influence of flow, clogging of the suction tube, problem of manipulation of flushing and angle between the intubation tube and the connection port. But this dropping has not yet been investigated. In this study, we focused at this angle and we used the test lung which is simulated machine on behalf of patient. We consider two situations adult and child, also two types of catheters Eco-Cath and Ty-care. In child case we consider elbow-type suction catheters and Y-connector type. The angle was set at 0°, 20°, 40°, 60°, and 90°, and we observed the
Although the 5-F catheter is reputed to cause less vascular trauma than larger catheters, subintimal injections of contrast material have occurred following intimal damage by the catheter tip. Microscopic studies of the tips of two widely used 5-F polyethylene catheters have revealed a difference in configuration resulting in one of the catheters becoming markedly damaged during angiography. The authors make recommendations for finishing and protecting the catheter tip. ...
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies. ...
... ,Minimize Patient Trauma and Increase Staff Protection With Medlines Sterile Suction Catheters and Kits (10 Fr, 12 Fr, 14 Fr, 16 Fr and 18 Fr), ,Medline is a leading innovator of suction products in the U.S. We manufacture most of our suction products and assure that their quality meets or e,medicine,medical supply,medical supplies,medical product
Idiopathic achalasia is a primary esophageal motor disorder characterized by esophageal aperistalsis and abnormal lower esophageal sphincter (LES) relaxation in response to deglutition. It is a rare disease with an annual incidence of approximately 1/100,000 and a prevalence rate of 1/10,000. The disease can occur at any age, with a similar rate in men and women, but is usually diagnosed between 25 and 60 years. It is characterized predominantly by dysphagia to solids and liquids, bland regurgitation, and chest pain. Weight loss (usually between 5 to 10 kg) is present in most but not in all patients. Heartburn occurs in 27%-42% of achalasia patients. Etiology is unknown. Some familial cases have been reported, but the rarity of familial occurrence does not support the hypothesis that genetic inheritance is a significant etiologic factor. Association of achalasia with viral infections and auto-antibodies against myenteric plexus has been reported, but the causal relationship remains unclear. The
Teleflex Receives FDA Clearance for ARROW GPSCath Balloon Dilatation Catheters in Higher RBP and 80 cm Lengths PTA Balloon Catheter combines angioplasty and targeted injection system in one
Major factors driving the femoral cannula market include increase in number of patients suffering from chronic conditions such as hypertension, cardio vascular disorders, and other hematological disorders; rise in demand for new and minimally invasive techniques for hemodynamic access from patients and healthcare providers; introduction of new and advanced femoral cannulae with distinct features by major and domestic market players; and distinct advantages of femoral cannulation over other peripheral catheterization techniques. Numerous clinical studies about new application areas of femoral cannula are being conducted around the world. This is expected to open up new applications and alternatives for the use of femoral cannulation technique. Increase in number of hospital emergency admissions due to trauma and rise in patient population requiring hemodialysis are some of the factors estimated to propel the global femoral cannula market during the forecast period.. The global femoral cannula ...
TY - JOUR. T1 - Balloon catheters with integrated stretchable electronics for electrical stimulation, ablation and blood flow monitoring. AU - Klinker, Lauren. AU - Lee, Stephen. AU - Work, John. AU - Wright, John. AU - Ma, Yinji. AU - Ptaszek, Leon. AU - Webb, Richard C.. AU - Liu, Cliff. AU - Sheth, Nirav. AU - Mansour, Moussa. AU - Rogers, John A.. AU - Huang, Yonggang. AU - Chen, Hang. AU - Ghaffari, Roozbeh. PY - 2015/6/1. Y1 - 2015/6/1. N2 - Balloon catheter-based techniques that apply mechanical force to blood vessel walls have dramatically advanced the standard of care for patients with vascular disease. But balloons are limited in their therapeutic potential because they rely on mechanics alone and lack electronically active materials. Recent advances in balloon catheters with integrated electrodes have offered additional treatment capabilities through the application of both mechanical contact force and radio frequency electromotive force. However, these smart balloons remain limited ...
Those who manage the anesthetic care of children who need an arterial line know that insertion can be difficult. The pulse is felt, yet pass after pass fails to cannulate the artery. Ultrasound guidance is becoming more popular, particularly for difficult arterial cannulation.. Dr. Yoshinobu Nakayama, Department of Anesthesiology and Intensive Care, Kyoto Prefectural University of Medicine, Kyoto, Japan, and colleagues first determined factors that predicted ultrasound-guided percutaneous radial arterial catheterization in children and then used the strongest predictor of success as the basis of a randomized trial. Their results are presented in this months Anesthesia & Analgesia in the article "A Novel Method for Ultrasound-Guided Radial Arterial Catheterization in Pediatric Patients.". The authors used the Sonosite M-Turbo® ultrasound system. The arterial catheter was a 24 gaugeJelco® Plus catheter. The authors considered 102 patients in the initial assessment phase. A subcutaneous arterial ...
In 1974, at the Medical Policlinic of the University of Zürich, German-born physician-scientist Andreas Grüntzig (1939-1985) successfully applied a balloon-tipped catheter to re-open a severely stenosed femoral artery, a procedure which he initially called
By Julie Steenhuysen February 14, 2006. … CHICAGO (Reuters) - People on Medicare who get elective surgery to open blocked heart arteries often do not get the recommended stress tests to confirm the surgery is warranted, U.S. researchers said on Tuesday. The surgery, known as PCI or percutaneous coronary intervention, involves threading a balloon-tipped catheter through the arteries and opening up a clog. A tiny wire-mesh coil called a stent is often inserted to prop open the artery. PCI costs […]
MediCoat BC is an automated Balloon Catheter Coating system for spraying anti-restenosis solutions containing Paclitaxel or bioabsorbable polymers onto implantable balloon catheters.
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a Available in 19 patients only. AR = aortic regurgitation; ECG = electrocardiography; LVH = left ventricular hypertrophy; MIG = maximal instantaneous gradient; PSEG = peak systolic ejection gradient. ...
In cardiac catheterization (often called cardiac cath), a very small hollow tube, or catheter, is advanced from a blood vessel in the groin or arm through the aorta and into the heart. Once the catheter is in place, several diagnostic techniques may be used. The tip of the catheter can be placed into various parts of the heart to measure the pressures within the chambers and how much oxygen is in the blood. Its also used to get information about the pumping ability of the heart muscle. The catheter can be advanced into the coronary arteries where a contrast dye can injected into the arteries. The use of fluoroscopy (a special type of X-ray, similar to an X-ray "movie") assists our physicians in the location of blockages in the coronary arteries as the contrast dye moves through the arteries.. Cardiac catheterization is a medical procedure used to diagnose and treat some heart conditions, including:. ...
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VENTERA System Balloon dilation of the paranasal sinuses has emerged as a necessary tool in the surgical treatment of the sinuses.
The global stent graft balloon catheter market will register a healthy expansion during 2017 to 2022. Revenues from the market are expected to surpass US$ 1,000 Mn by the end of 2022.
Use of a wire-guided cannula for radial arterial cannulation. Ohara, Yuki; Nakayama, Shin; Furukawa, Hajime; Satoh, Yasuhiro; Suzuki, Hiroto; Yanai, Hiromune // Journal of Anesthesia;2007, Vol. 21 Issue 1, p83 We compared the success rates of arterial cannulation with a wire-guided cannula (WGC) and the direct technique with a conventional non-wire-guided cannula (non-WGC). A total of 100 adult patients requiring an arterial line in the operating room were assigned randomly to undergo radial arterial... ...
Arterial catheters (also called intra-arterial catheters or A-lines) are common in critically ill patients. They can be used to obtain arterial blood for laboratory testing, and for direct measurement of blood pressure and cardiac output. However, in
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Aspiration of the blood clot or thrombus that causes a heart attack before re-opening a patients artery with a balloon catheter does not improve survival compared to performing balloon dilation and stenting alone according ...
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TY - JOUR. T1 - Balloon valvuloplasty.. AU - Bourdillon, P.. AU - Dillon, J.. AU - Brown, S.. AU - Feigenbaum, H.. PY - 1990/10/1. Y1 - 1990/10/1. N2 - Percutaneous balloon valvuloplasty has been used for several years for the treatment of stenosis of all four cardiac valves. It has been particularly effective in pulmonary stenosis in children and in rheumatic mitral stenosis, especially in the younger age groups without severe calcification. After initial enthusiasm, results have not been as good in severe calcific aortic stenosis, although there is a place for aortic valvuloplasty in patients who are truly inoperable for reasons of age or coexisting disease. The procedure also may be applicable to occasional cases of tricuspid stenosis. The techniques used and results obtained with these procedures at Indiana University are described.. AB - Percutaneous balloon valvuloplasty has been used for several years for the treatment of stenosis of all four cardiac valves. It has been particularly ...
Title: Mitral Balloon Valvuloplasty: State-of-the-Art Paper. VOLUME: 2 ISSUE: 1. Author(s):Mohamed E. Fawzy. Affiliation:Consultant, Adult Cardiology,King Faisal Heart Institute (MBC-16), King Faisal Specialist Hospital&Research Center, PO Box 3354, Riyadh 11211, Saudi Arabia.. Keywords:Mitral valve, mitral stenosis, valvuloplasty. Abstract: Percutaneous mitral balloon valvuloplasty (MBV) was introduced in 1984 by Inoue who developed the procedure as a logical extension of surgical closed commissurotomy. Since then, MBV has emerged as the treatment of choice for severe pliable rheumatic mitral stenosis (MS). With increasing experience and better selection of patient, the immediate results of the procedure have improved and the rate of complications declined. When the reported complications of MBV are viewed in aggregate, complications occur at approximately the following rates: mortality (0% to 0.5%), cerebral accident (0.5% to 1%), mitral regurgitation (MR) requiring surgery (2% to 3%). These ...
article{aaaf1de4-de34-469a-ad34-52c691970e90, abstract = {BACKGROUND: Treating pulmonary valve stenosis with balloon valvuloplasty (BV) is a good model to study the effect of right ventricular (RV) pressures on coronary flow. METHODS: Transthoracic Doppler echocardiography was used to register coronary flow in 10 age-matched healthy controls and 7 neonates before and 1 day after BV. RESULTS: Left ventricular fractional shortening and cardiac output increased significantly after BV. Right coronary artery diameter decreased from 1.2 +/- 0.2 to 1.1 +/- 0.1 mm (P < .02). Posterior descending coronary artery flow parameters decreased significantly, with blood flow decreasing from 8.4 to 5.7 +/- 1.9 mL/s (P < .003). RV end-diastolic pressure and RV systolic pressure explained almost totally the variation in coronary flow (r(2) = 0.87). CONCLUSIONS: RV end-diastolic pressure and RV systolic pressure determined coronary flow in neonates with critical pulmonary valve stenosis. Cardiac output and ...
TY - JOUR. T1 - Balloon atrial septostomy in hypoplastic left heart syndrome with restrictive atrial septum. AU - Fukushima, Yosuke. AU - Baba, Kenji. AU - Kondo, Maiko. AU - Kurita, Yoshihiko. AU - Eitoku, Takahiro. AU - Shigemitsu, Yusuke. AU - Hirai, Kenta. AU - Tsukahara, Hirokazu. AU - Iwasaki, Tatsuo. AU - Kasahara, Shingo. AU - Kotani, Yasuhiro. AU - Ohtsuki, Shin-ichi. PY - 2019/1/1. Y1 - 2019/1/1. N2 - Background: Rashkind balloon atrial septostomy (BAS) can be challenging in infants with hypoplastic left heart syndrome (HLHS) and small atrial septal defect (ASD). Methods: We retrospectively reviewed all infants with HLHS who underwent surgery and BAS between January 2006 and December 2015. The infants were divided into three groups: no BAS; catheter BAS; and open AS. Infants who underwent catheter BAS were divided into two groups based on atrial septal anatomy: standard and complex. Results: Of the 70 patients, 57 (81%) underwent Glenn surgery. Subsequently, a significant difference in ...
Journal of Pediatric Ophthalmology and Strabismus | Purpose:To investigate the accuracy of high frequency ultrasound biomicroscopy using the bag/balloon technique to locate recti muscle insertions before and after strabismus surgery.Methods:This was a prospective masked study. The distance from the limbus to horizontal recti muscle insertions was measured by caliper intraoperatively and ultrasound biomicroscopy preoperatively and during follow-up.
Treatment of Pulmonary valve stenosis is a narrowing of the pulmonary valve, the flap that separates the lower right chamber (right ventricle) of your heart from the pulmonary artery. During circulation, oxygen-poor blood returning from your body is pumped from your heart, through the pulmonary valve and into the pulmonary artery, which carries the blood to your lungs to pick up oxygen and drop off carbon dioxide. If the pulmonary valve is constricted (stenosed), your heart has to pump harder to push blood through the valve and into the pulmonary artery, The disorder is usually present since birth (congenital). Its one of the more common heart birth defects, with the majority of the cases being mild. Pulmonary valve stenosis occurs in about one of 10 children, and females are slightly more likely to be affected than males. Adults occasionally have pulmonary valve stenosis as a complication of another illness, Pulmonary valve stenosis ranges from mild and without symptoms to severe and debilitating.
Routine predeployment balloon aortic valvuloplasty (BAV) has historically been considered an essential part of the transcatheter aortic valve replacement (TAVR) procedure, ensuring unimpeded delivery of the prosthetic valve across the stenotic aortic valve, optimal valve expansion, and hemodynamic stability during valve deployment. This was particularly pertinent for first‐generation valves with very large profiles (22‐F and 24‐F Edwards Sapien valve [Edwards Lifesciences, Irvine, CA]1 and 24‐F Medtronic CoreValve [Medtronic, Dublin, Ireland]2), for which valve crossing was often challenging. However, its continued role as a routine adjunct given more advanced delivery systems with lower profiles (14‐F to 16‐F for the Edwards S3 and Medtronic Evolut R valves) and improved trackability remains uncertain. Routine predeployment BAV for every TAVR might not be necessary, especially as operators strive to minimize TAVR‐related risks. A tailored approach to predeployment BAV for specific ...
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Pulmonary veno-occlusive disease | Multimedia Encyclopedia | Health Information | St. Lukes HospitalPulmonary veno-occlusive disease | Multimedia Encyclopedia | Health Information | St. Luke's Hospital

Cardiac catheterization Cardiac catheterization. Cardiac catheterization involves passing a thin flexible tube (catheter) into ...
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IAC Cardiovascular Catheterization | Facility & Hospital AccreditationIAC Cardiovascular Catheterization | Facility & Hospital Accreditation

Pediatric Cardiovascular Catheterization. About IAC. The IAC provides accreditation programs for vascular testing, ... IAC Cardiovascular Catheterization. Improving health care through accreditation® 6021 University Boulevard, Suite 500, Ellicott ... IAC Cardiovascular Catheterization provides accreditation for facilities performing cardiovascular cath procedures.. What can ... The IAC provides facility accreditation specific to cardiovascular catheterization procedures in the following areas:. *Adult ...
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Cardiac catheterization: MedlinePlus Medical EncyclopediaCardiac catheterization: MedlinePlus Medical Encyclopedia

Cardiac catheterization involves passing a thin flexible tube (catheter) into the right or left side of the heart. The catheter ... Catheterization - cardiac; Heart catheterization; Angina - cardiac catheterization; CAD - cardiac catheterization; Coronary ... artery disease - cardiac catheterization; Heart valve - cardiac catheterization; Heart failure - cardiac catheterization ... Cardiac catheterization carries a slightly higher risk than other heart tests. However, it is very safe when done by an ...
more infohttps://medlineplus.gov/ency/article/003419.htm

Urinary catheterization - WikipediaUrinary catheterization - Wikipedia

In urinary catheterization a latex, polyurethane, or silicone tube known as a urinary catheter is inserted into a patients ... Catheterization allows the patients urine to drain freely from the bladder for collection. It may be used to inject liquids ... Intermittent self-catheterization is performed by the patient four to six times a day, using a clean technique in most cases. ... Mar 1972). "Clean, intermittent self-catheterization in the treatment of urinary tract disease". J Urol. 107 (3): 458-61. PMID ...
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Cardiac CatheterizationCardiac Catheterization

Doctors use cardiac catheterization to gather information about the heart and blood vessels as well as treat certain heart ... Cardiac Catheterization. Resources. Please Note: By clicking a link to any resource listed on this page, you will be leaving ...
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Heart Catheterization | Encyclopedia.comHeart Catheterization | Encyclopedia.com

Definition Cardiac catheterization (also called heart catheterization) is a diagnostic and occasionally therapeutic procedure ... Outpatient catheterization Cardiac catheterization is usually performed in a specially designed cardiac catheterization suite ... Modern cardiac catheterization is performed in a cardiac catheterization suite within a hospital. Catheterization is done of ... Cardiac Catheterization. Definition. Cardiac catheterization (also called heart catheterization) is a diagnostic and ...
more infohttps://www.encyclopedia.com/medicine/divisions-diagnostics-and-procedures/medicine/heart-catheterization

Cardiac Catheterization | HealthCentralCardiac Catheterization | HealthCentral

Definition Cardiac catheterization is the procedure of inserting a thin, hollow tube into a blood vessel in the legor, less ... Cardiac catheterization is the procedure of inserting a thin, hollow tube into a blood vessel in the legor, less often the arm ... Catheterization of the coronary arteries, called coronary angiography, is considered the gold standard against which all ... More than one million cardiac catheterization procedures are performed in hospitals each year, making it one of the most widely ...
more infohttps://www.healthcentral.com/encyclopedia/cardiac-catheterization

Cardiac CatheterizationCardiac Catheterization

After your heart catheterization, you will need to avoid strenuous activity for at least 24 to 48 hours. Within five to seven ... Cardiac catheterization is a procedure in which a heart specialist inserts a small tube (catheter) through a large blood vessel ... Although heart catheterization is generally a safe procedure, there is some risk of the following complications:. *Heart attack ... Because some of these problems may be life threatening, heart catheterization should always be done in a hospital that has the ...
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Cardiac CatheterizationCardiac Catheterization

The Childrens Health pediatric cardiologists are leading the standard of care for cardiac catheterization and intervention. ... Cardiac Catheterization Cardiac Catheterization and Intervention. Leading the way and delivering better outcomes today - and ... Radiation-free Catheterization. We are one of the few centers worldwide that performs radiation-free cardiac catheterizations ... When your child needs cardiac catheterization and intervention, you want specialized, compassionate care. The procedure itself ...
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Cardiac catheterization - Mayo ClinicCardiac catheterization - Mayo Clinic

Cardiac catheterization is done to see if you have a heart problem. It can also be done as part of a procedure to correct a ... During cardiac catheterization, a long thin tube called a catheter is inserted in an artery or vein in your groin, neck or arm ... Right heart catheterization. This procedure checks the pressure and blood flow in the right side of your heart. A catheter is ... Cardiac catheterization is also used as part of some procedures to treat heart disease. These procedures include:. *Widening a ...
more infohttps://www.mayoclinic.org/tests-procedures/cardiac-catheterization/about/pac-20384695

What is central venous catheterization?What is central venous catheterization?

... central venous catheterization, or central line placement, is a time-honored and tested technique of quickly accessing the ... encoded search term (What is central venous catheterization?) and What is central venous catheterization? What to Read Next on ... What is central venous catheterization?. Updated: Aug 07, 2018 * Author: E Jedd Roe, lll, MD, MBA, FACEP, FAAEM, MSF, CPE; ... Central venous catheterization--subclavian vein. N Engl J Med. 2007 Dec 13. 357 (24):e26. [Medline]. ...
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Catheterization: MedlinePlus Medical Encyclopedia ImageCatheterization: MedlinePlus Medical Encyclopedia Image

The goal of intermittent catheterization is to help prevent urinary tract infections for anyone ... Clean intermittent self catheterization is the process of introducing a catheter into the bladder by oneself. ... Clean intermittent self catheterization is the process of introducing a catheter into the bladder by oneself. The goal of ... intermittent catheterization is to help prevent urinary tract infections for anyone who is unable to properly empty their ...
more infohttps://medlineplus.gov/ency/imagepages/9653.htm

Cardiac Catheterization ProcedureCardiac Catheterization Procedure

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Cardiac Catheterization - ReferencesCardiac Catheterization - References

... reference source for the article along with the name of the writer and the editor for the article on Cardiac Catheterization ... 2) Cardiac Catheterization. http://www.webmd.com/heart-disease/cardiac-catheterization. 3) Cardiac Catheterization. http://www. ... 3) The effect of early education on patient anxiety while waiting for elective cardiac catheterization. Harkness K, Morrow L, ... 2) Effect of Transradial Access on Quality of Life and Cost of Cardiac Catheterization: A randomized Comparison. Christopher J ...
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Urethral CatheterizationUrethral Catheterization

... , Urinary Catheter, Urinary Catheterization, Bladder Catheterization, Foley Catheter. ... Urethral Catheterization. Aka: Urethral Catheterization, Urinary Catheter, Urinary Catheterization, Bladder Catheterization, ... Catheterizations, Urethral, Urethral Catheterization, Urethral Catheterizations, Ureth catheterisation blad NOS, Ureth ... urethral catheterization, urethral catheterization (treatment), Urethral catheterization, Urethral catheterization of bladder ...
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Complications of diagnostic cardiac catheterizationComplications of diagnostic cardiac catheterization

... cardiac catheterization was primarily a diagnostic procedure that was used to evaluate hemodynamics, ventricular function, and ... Baim, DS, Grossman, W. Complications of cardiac catheterization. In: Cardiac Catheterization, Angiography and Intervention, ... Cardiac catheterization 1990: a report of the Registry of the Society for Cardiac Angiography and Interventions (SCA&I). Cathet ... Although diagnostic catheterization and percutaneous coronary intervention (PCI) are done by skin puncture rather than incision ...
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Urinary Catheterization for MaleUrinary Catheterization for Male

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Cardiac catheterization - WikipediaCardiac catheterization - Wikipedia

Coronary catheterizationEdit. Main page: Coronary catheterization. Indications for diagnostic use of coronary catheterization ... Catheterization of chambers and valvesEdit. Catheterization of cardiac chambers and valves may be performed at the same time as ... There are two major categories of cardiac catheterization:[6]. *Left heart catheterization allows for direct intervention in ... eMedicine: Cardiac Catheterization (Left Heart). *The Parachute Implant: a cardiac catheterization device for treating heart ...
more infohttps://en.m.wikipedia.org/wiki/Cardiac_catheterization

Cardiac Catheterization - HealthLibraryCardiac Catheterization - HealthLibrary

Cardiac catheterization is a test for the heart and its blood supply. It uses a tube that is passed through blood vessels to ... Cardiac Catheterization. (Coronary Angiography; Coronary Arteriography; Coronary Angiogram). by Editorial Staff and ... If you are planning to have cardiac catheterization, your doctor will review a list of possible complications. Complications ... www.cedars-sinai.org/programs/heart/resources/preparing-for-cardiac-procedures-and-studies/cardiac-catheterization.html. ...
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Urinary catheterization - WikipediaUrinary catheterization - Wikipedia

In urinary catheterization a latex, polyurethane, or silicone tube known as a urinary catheter is inserted into a patients ... Catheterization allows the patients urine to drain freely from the bladder for collection. It may be used to inject liquids ... Intermittent self-catheterization is performed by the patient four to six times a day, using a clean technique in most cases. ... Intermittent self-catheterization in males is best performed with a flexible catheter to drain the bladder periodically. The ...
more infohttps://en.m.wikipedia.org/wiki/Urinary_catheterization

Urinary catheterizationUrinary catheterization

In the third catheterization method, the suprapubic method, the catheter is inserted through the abdominal wall instead of the ... Those patients, who can practice self-catheterization with the help of solutions such as Actreen®, will no longer have to cope ... The most common is the so-called intermittent catheterization (IC) technique with a disposable catheter. Used four to six times ... It could be performed by healthcare professionals or the patient himself (ISC - intermittent self catheterization). ...
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Cardiac catheterization - Doctors & Departments - Mayo ClinicCardiac catheterization - Doctors & Departments - Mayo Clinic

See a list of publications about cardiac catheterization by Mayo Clinic doctors on PubMed, a service of the National Library of ... Cardiac catheterization, cardiac angiography, and coronary blood flow and pressure measurements. In: Hursts the Heart. 13th ed ... Diagnostic cardiac catheterization and coronary angiography. In: Harrisons Principles of Internal Medicine. 19th ed. New York ... Cardiac catheterization. In: Braunwalds Heart Disease: A Textbook of Cardiovascular Medicine. 10th ed. Philadelphia, Pa.: ...
more infohttps://www.mayoclinic.org/tests-procedures/cardiac-catheterization/doctors-departments/pdc-20384696?Page=2

Urinary catheterizationUrinary catheterization

... , or Foley catheterization as it is commonly referred to, is an invasive procedure. It involves ...
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Transradial Cardiac Catheterization | Johns Hopkins MedicineTransradial Cardiac Catheterization | Johns Hopkins Medicine

Transradial cardiac catheterization is a procedure used to treat and diagnose certain heart conditions. It is also known as ... What is transradial cardiac catheterization?. Transradial cardiac catheterization is a procedure used to treat and diagnose ... Transradial Cardiac Catheterization. Facebook Twitter Linkedin Pinterest Print. Cardiovascular Heart and Vascular ... What are the risks of transradial cardiac catheterization?. In general, the risks of this procedure are low. Some may be even ...
more infohttps://www.hopkinsmedicine.org/health/treatment-tests-and-therapies/transradial-cardiac-catheterization

Nagging headache following cardiac catheterization? - MigraineNagging headache following cardiac catheterization? - Migraine

Hello I had a cardiac catheterization procedure done about a week ago, and I noticed that 4 days later I started having a ... Nagging headache following cardiac catheterization?. Dr. David Watson & Teri RobertHealth Professional & Patient Advocate. Dec ... Hello I had a cardiac catheterization procedure done about a week ago, and I noticed that 4 days later I started having a ... Its impossible for us to say if your headache is related to the cardiac catheterization procedure or if the timing is ...
more infohttps://www.healthcentral.com/article/nagging-headache-following-cardiac-catheterization
  • Although diagnostic catheterization and percutaneous coronary intervention (PCI) are done by skin puncture rather than incision, and under local rather than general anesthesia, they can cause a variety of adverse events, ranging from minor problems without long-term sequelae to major complications requiring immediate corrective action. (uptodate.com)
  • The Intersocietal Accreditation Commission (IAC) accredits imaging facilities and hospitals specific to cardiovascular catheterization. (intersocietal.org)
  • However, the introduction of improved angioplasty equipment and new interventional devices in the 1980s made catheterization an important tool in the treatment of cardiovascular disease. (uptodate.com)
  • In the third catheterization method, the suprapubic method, the catheter is inserted through the abdominal wall instead of the urethra. (bbraun.com)
  • Infection control guidelines for the cardiac catheterization laboratory: society guidelines revisited. (uptodate.com)
  • Your child may or may not be given some medication to make him / her sleepy in the CARU before being transported to the catheterization laboratory. (cincinnatichildrens.org)
  • Catheterization is also recommended for patients with suspected valvular disease, including aortic stenosis (narrowing) or regurgitation, and mitral stenosis or regurgitation. (encyclopedia.com)
  • We are one of the few centers worldwide that performs radiation-free cardiac catheterizations using Magnetic Resonance Imaging (MRI) technology. (childrens.com)
  • Complications and failures of subclavian-vein catheterization. (medscape.com)
  • If this is impossible, umbilical vein catheterization may be attempted. (medscape.com)
  • The principal indication for umbilical vein catheterization is to gain vascular access during emergency resuscitation. (medscape.com)
  • Portal venous thrombosis after umbilical vein catheterization. (medscape.com)