A short vein that collects about two thirds of the venous blood from the MYOCARDIUM and drains into the RIGHT ATRIUM. Coronary sinus, normally located between the LEFT ATRIUM and LEFT VENTRICLE on the posterior surface of the heart, can serve as an anatomical reference for cardiac procedures.
The veins and arteries of the HEART.
Radiography of the vascular system of the heart muscle after injection of a contrast medium.
The circulation of blood through the CORONARY VESSELS of the HEART.
Pathological processes of CORONARY ARTERIES that may derive from a congenital abnormality, atherosclerotic, or non-atherosclerotic cause.
The dilatation of the aortic wall behind each of the cusps of the aortic valve.
Dilation of an occluded coronary artery (or arteries) by means of a balloon catheter to restore myocardial blood supply.
Narrowing or constriction of a coronary artery.
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.
Large endothelium-lined venous channels situated between the two layers of DURA MATER, the endosteal and the meningeal layers. They are devoid of valves and are parts of the venous system of dura mater. Major cranial sinuses include a postero-superior group (such as superior sagittal, inferior sagittal, straight, transverse, and occipital) and an antero-inferior group (such as cavernous, petrosal, and basilar plexus).
The air space located in the body of the MAXILLARY BONE near each cheek. Each maxillary sinus communicates with the middle passage (meatus) of the NASAL CAVITY on the same side.
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.
Air-filled spaces located within the bones around the NASAL CAVITY. They are extensions of the nasal cavity and lined by the ciliated NASAL MUCOSA. Each sinus is named for the cranial bone in which it is located, such as the ETHMOID SINUS; the FRONTAL SINUS; the MAXILLARY SINUS; and the SPHENOID SINUS.
Regulation of the rate of contraction of the heart muscles by an artificial pacemaker.
An irregularly shaped venous space in the dura mater at either side of the sphenoid bone.
Malformations of CORONARY VESSELS, either arteries or veins. Included are anomalous origins of coronary arteries; ARTERIOVENOUS FISTULA; CORONARY ANEURYSM; MYOCARDIAL BRIDGING; and others.
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.
Abnormal balloon- or sac-like dilatation in the wall of CORONARY VESSELS. Most coronary aneurysms are due to CORONARY ATHEROSCLEROSIS, and the rest are due to inflammatory diseases, such as KAWASAKI DISEASE.
The venous trunk which returns blood from the head, neck, upper extremities and chest.
The dilated portion of the common carotid artery at its bifurcation into external and internal carotids. It contains baroreceptors which, when stimulated, cause slowing of the heart, vasodilatation, and a fall in blood pressure.
Spasm of the large- or medium-sized coronary arteries.
The chambers of the heart, to which the BLOOD returns from the circulation.
Removal of tissue with electrical current delivered via electrodes positioned at the distal end of a catheter. Energy sources are commonly direct current (DC-shock) or alternating current at radiofrequencies (usually 750 kHz). The technique is used most often to ablate the AV junction and/or accessory pathways in order to interrupt AV conduction and produce AV block in the treatment of various tachyarrhythmias.
One of the paired, but seldom symmetrical, air spaces located between the inner and outer compact layers of the FRONTAL BONE in the forehead.
Procedures in which placement of CARDIAC CATHETERS is performed for therapeutic or diagnostic procedures.
Diseases affecting or involving the PARANASAL SINUSES and generally manifesting as inflammation, abscesses, cysts, or tumors.
One of the paired air spaces located in the body of the SPHENOID BONE behind the ETHMOID BONE in the middle of the skull. Sphenoid sinus communicates with the posterosuperior part of NASAL CAVITY on the same side.
The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)
A device designed to stimulate, by electric impulses, contraction of the heart muscles. It may be temporary (external) or permanent (internal or internal-external).
An impulse-conducting system composed of modified cardiac muscle, having the power of spontaneous rhythmicity and conduction more highly developed than the rest of the heart.
NECROSIS of the MYOCARDIUM caused by an obstruction of the blood supply to the heart (CORONARY CIRCULATION).
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.
Abnormal cardiac rhythm that is characterized by rapid, uncoordinated firing of electrical impulses in the upper chambers of the heart (HEART ATRIA). In such case, blood cannot be effectively pumped into the lower chambers of the heart (HEART VENTRICLES). It is caused by abnormal impulse generation.
Coagulation of blood in any of the CORONARY VESSELS. The presence of a blood clot (THROMBUS) often leads to MYOCARDIAL INFARCTION.
A small nodular mass of specialized muscle fibers located in the interatrial septum near the opening of the coronary sinus. It gives rise to the atrioventricular bundle of the conduction system of the heart.
Methods to induce and measure electrical activities at specific sites in the heart to diagnose and treat problems with the heart's electrical system.
The muscle tissue of the HEART. It is composed of striated, involuntary muscle cells (MYOCYTES, CARDIAC) connected to form the contractile pump to generate blood flow.
Formation or presence of a blood clot (THROMBUS) in the CRANIAL SINUSES, large endothelium-lined venous channels situated within the SKULL. Intracranial sinuses, also called cranial venous sinuses, include the superior sagittal, cavernous, lateral, petrous sinuses, and many others. Cranial sinus thrombosis can lead to severe HEADACHE; SEIZURE; and other neurological defects.
A procedure to stop the contraction of MYOCARDIUM during HEART SURGERY. It is usually achieved with the use of chemicals (CARDIOPLEGIC SOLUTIONS) or cold temperature (such as chilled perfusate).
A condition caused by dysfunctions related to the SINOATRIAL NODE including impulse generation (CARDIAC SINUS ARREST) and impulse conduction (SINOATRIAL EXIT BLOCK). It is characterized by persistent BRADYCARDIA, chronic ATRIAL FIBRILLATION, and failure to resume sinus rhythm following CARDIOVERSION. This syndrome can be congenital or acquired, particularly after surgical correction for heart defects.
Rapid, irregular atrial contractions caused by a block of electrical impulse conduction in the right atrium and a reentrant wave front traveling up the inter-atrial septum and down the right atrial free wall or vice versa. Unlike ATRIAL FIBRILLATION which is caused by abnormal impulse generation, typical atrial flutter is caused by abnormal impulse conduction. As in atrial fibrillation, patients with atrial flutter cannot effectively pump blood into the lower chambers of the heart (HEART VENTRICLES).
The hollow, muscular organ that maintains the circulation of the blood.
The numerous (6-12) small thin-walled spaces or air cells in the ETHMOID BONE located between the eyes. These air cells form an ethmoidal labyrinth.
Abnormally rapid heartbeats caused by reentry circuit in or around the SINOATRIAL NODE. It is characterized by sudden onset and offset episodes of tachycardia with a HEART RATE of 100-150 beats per minute. The P wave is identical to the sinus P wave but with a longer PR interval.
Recurrent narrowing or constriction of a coronary artery following surgical procedures performed to alleviate a prior obstruction.
The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.
A disorder of cardiac function caused by insufficient blood flow to the muscle tissue of the heart. The decreased blood flow may be due to narrowing of the coronary arteries (CORONARY ARTERY DISEASE), to obstruction by a thrombus (CORONARY THROMBOSIS), or less commonly, to diffuse narrowing of arterioles and other small vessels within the heart. Severe interruption of the blood supply to the myocardial tissue may result in necrosis of cardiac muscle (MYOCARDIAL INFARCTION).
Small band of specialized CARDIAC MUSCLE fibers that originates in the ATRIOVENTRICULAR NODE and extends into the membranous part of the interventricular septum. The bundle of His, consisting of the left and the right bundle branches, conducts the electrical impulses to the HEART VENTRICLES in generation of MYOCARDIAL CONTRACTION.
Elements of limited time intervals, contributing to particular results or situations.
Complete blockage of blood flow through one of the CORONARY ARTERIES, usually from CORONARY ATHEROSCLEROSIS.
Surgically placed electric conductors through which ELECTRIC STIMULATION is delivered to or electrical activity is recorded from a specific point inside the body.
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.
The hemodynamic and electrophysiological action of the HEART ATRIA.
Types of artificial pacemakers with implantable leads to be placed at multiple intracardial sites. They are used to treat various cardiac conduction disturbances which interfere with the timing of contraction of the ventricles. They may or may not include defibrillating electrodes (IMPLANTABLE DEFIBRILLATORS) as well.
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.
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.
Catheters inserted into various locations within the heart for diagnostic or therapeutic purposes.
Tomography using x-ray transmission and a computer algorithm to reconstruct the image.
Tumors or cancer of the PARANASAL SINUSES.
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.
Radiographic visualization or recording of a vein after the injection of contrast medium.
Abnormally rapid heartbeats caused by reentry of atrial impulse into the dual (fast and slow) pathways of ATRIOVENTRICULAR NODE. The common type involves a blocked atrial impulse in the slow pathway which reenters the fast pathway in a retrograde direction and simultaneously conducts to the atria and the ventricles leading to rapid HEART RATE of 150-250 beats per minute.
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.
A generic expression for any tachycardia that originates above the BUNDLE OF HIS.
Surgical insertion of a prosthesis.
The thin membrane-like muscular structure separating the right and the left upper chambers (HEART ATRIA) of a heart.
The small mass of modified cardiac muscle fibers located at the junction of the superior vena cava (VENA CAVA, SUPERIOR) and right atrium. Contraction impulses probably start in this node, spread over the atrium (HEART ATRIUM) and are then transmitted by the atrioventricular bundle (BUNDLE OF HIS) to the ventricle (HEART VENTRICLE).
Simple rapid heartbeats caused by rapid discharge of impulses from the SINOATRIAL NODE, usually between 100 and 180 beats/min in adults. It is characterized by a gradual onset and termination. Sinus tachycardia is common in infants, young children, and adults during strenuous physical activities.
Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic.
The hospital unit in which patients with acute cardiac disorders receive intensive care.
The condition of an anatomical structure's being dilated beyond normal dimensions.
The vessels carrying blood away from the capillary beds.
Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues using a transducer placed in the esophagus.
A form of ventricular pre-excitation characterized by a short PR interval and a long QRS interval with a delta wave. In this syndrome, atrial impulses are abnormally conducted to the HEART VENTRICLES via an ACCESSORY CONDUCTING PATHWAY that is located between the wall of the right or left atria and the ventricles, also known as a BUNDLE OF KENT. The inherited form can be caused by mutation of PRKAG2 gene encoding a gamma-2 regulatory subunit of AMP-activated protein kinase.
A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.
Recording of regional electrophysiological information by analysis of surface potentials to give a complete picture of the effects of the currents from the heart on the body surface. It has been applied to the diagnosis of old inferior myocardial infarction, localization of the bypass pathway in Wolff-Parkinson-White syndrome, recognition of ventricular hypertrophy, estimation of the size of a myocardial infarct, and the effects of different interventions designed to reduce infarct size. The limiting factor at present is the complexity of the recording and analysis, which requires 100 or more electrodes, sophisticated instrumentation, and dedicated personnel. (Braunwald, Heart Disease, 4th ed)
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.
Production of an image when x-rays strike a fluorescent screen.
Studies to determine the advantages or disadvantages, practicability, or capability of accomplishing a projected plan, study, or project.
Devices that provide support for tubular structures that are being anastomosed or for body cavities during skin grafting.
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.
Abnormally rapid heartbeats with sudden onset and cessation.
Tumors or cancer of the MAXILLARY SINUS. They represent the majority of paranasal neoplasms.
Drugs used to cause dilation of the blood vessels.
This structure includes the thin muscular atrial septum between the two HEART ATRIA, and the thick muscular ventricular septum between the two HEART VENTRICLES.
The rate at which oxygen is used by a tissue; microliters of oxygen STPD used per milligram of tissue per hour; the rate at which oxygen enters the blood from alveolar gas, equal in the steady state to the consumption of oxygen by tissue metabolism throughout the body. (Stedman, 25th ed, p346)
Diversion of the flow of blood from the entrance of the right atrium directly to the aorta (or femoral artery) via an oxygenator thus bypassing both the heart and lungs.
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.
The valve between the left atrium and left ventricle of the heart.
The veins that return the oxygenated blood from the lungs to the left atrium of the heart.
A nucleoside that is composed of ADENINE and D-RIBOSE. Adenosine or adenosine derivatives play many important biological roles in addition to being components of DNA and RNA. Adenosine itself is a neurotransmitter.
Abnormally rapid heartbeats originating from one or more automatic foci (nonsinus pacemakers) in the HEART ATRIUM but away from the SINOATRIAL NODE. Unlike the reentry mechanism, automatic tachycardia speeds up and slows down gradually. The episode is characterized by a HEART RATE between 135 to less than 200 beats per minute and lasting 30 seconds or longer.
Impaired conduction of cardiac impulse that can occur anywhere along the conduction pathway, such as between the SINOATRIAL NODE and the right atrium (SA block) or between atria and ventricles (AV block). Heart blocks can be classified by the duration, frequency, or completeness of conduction block. Reversibility depends on the degree of structural or functional defects.
An electrical current applied to the HEART to terminate a disturbance of its rhythm, ARRHYTHMIAS, CARDIAC. (Stedman, 25th ed)
ANGINA PECTORIS or angina-like chest pain with a normal coronary arteriogram and positive EXERCISE TEST. The cause of the syndrome is unknown. While its recognition is of clinical importance, its prognosis is excellent. (Braunwald, Heart Disease, 4th ed, p1346; Jablonski Dictionary of Syndromes & Eponymic Diseases, 2d ed). It is different from METABOLIC SYNDROME X, a syndrome characterized by INSULIN RESISTANCE and HYPERINSULINEMIA, that has increased risk for cardiovascular disease.
Surgery performed on the heart.
A phosphodiesterase inhibitor that blocks uptake and metabolism of adenosine by erythrocytes and vascular endothelial cells. Dipyridamole also potentiates the antiaggregating action of prostacyclin. (From AMA Drug Evaluations Annual, 1994, p752)
A hair-containing cyst or sinus, occurring chiefly in the coccygeal region.
Methods of creating machines and devices.
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.
Abnormal communication most commonly seen between two internal organs, or between an internal organ and the surface of the body.
The restoration of the sequential order of contraction and relaxation of the HEART ATRIA and HEART VENTRICLES by atrio-biventricular pacing.
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.
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.
Abnormally rapid heartbeat, usually with a HEART RATE above 100 beats per minute for adults. Tachycardia accompanied by disturbance in the cardiac depolarization (cardiac arrhythmia) is called tachyarrhythmia.
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.
Diversion of blood flow through a circuit located outside the body but continuous with the bodily circulation.
Maintenance of blood flow to an organ despite obstruction of a principal vessel. Blood flow is maintained through small vessels.
Persistent and reproducible chest discomfort usually precipitated by a physical exertion that dissipates upon cessation of such an activity. The symptoms are manifestations of MYOCARDIAL ISCHEMIA.
The return of a sign, symptom, or disease after a remission.
A type of heart valve surgery that involves the repair, replacement, or reconstruction of the annulus of the MITRAL VALVE. It includes shortening the circumference of the annulus to improve valve closing capacity and reinforcing the annulus as a step in more complex valve repairs.
The physiological widening of BLOOD VESSELS by relaxing the underlying VASCULAR SMOOTH MUSCLE.
The two large endothelium-lined venous channels that begin at the internal occipital protuberance at the back and lower part of the CRANIUM and travels laterally and forward ending in the internal jugular vein (JUGULAR VEINS). One of the transverse sinuses, usually the right one, is the continuation of the SUPERIOR SAGITTAL SINUS. The other transverse sinus is the continuation of the straight sinus.
Pathologic deposition of calcium salts in tissues.
The number of times the HEART VENTRICLES contract per unit of time, usually per minute.
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.
Coronary artery bypass surgery on a beating HEART without a CARDIOPULMONARY BYPASS (diverting the flow of blood from the heart and lungs through an oxygenator).
An abnormal passage between two or more BLOOD VESSELS, between ARTERIES; VEINS; or between an artery and a vein.
Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).
Levels within a diagnostic group which are established by various measurement criteria applied to the seriousness of a patient's disorder.
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)
Precordial pain at rest, which may precede a MYOCARDIAL INFARCTION.
The restoration of blood supply to the myocardium. (From Dorland, 28th ed)
The valve consisting of three cusps situated between the right atrium and right ventricle of the heart.
Measurable and quantifiable biological parameters (e.g., specific enzyme concentration, specific hormone concentration, specific gene phenotype distribution in a population, presence of biological substances) which serve as indices for health- and physiology-related assessments, such as disease risk, psychiatric disorders, environmental exposure and its effects, disease diagnosis, metabolic processes, substance abuse, pregnancy, cell line development, epidemiologic studies, etc.
The long large endothelium-lined venous channel on the top outer surface of the brain. It receives blood from a vein in the nasal cavity, runs backwards, and gradually increases in size as blood drains from veins of the brain and the DURA MATER. Near the lower back of the CRANIUM, the superior sagittal sinus deviates to one side (usually the right) and continues on as one of the TRANSVERSE SINUSES.
An abnormal balloon- or sac-like dilatation in the wall of AORTA.
Solutions which, upon administration, will temporarily arrest cardiac activity. They are used in the performance of heart surgery.
Contractile activity of the MYOCARDIUM.
Any disturbances of the normal rhythmic beating of the heart or MYOCARDIAL CONTRACTION. Cardiac arrhythmias can be classified by the abnormalities in HEART RATE, disorders of electrical impulse generation, or impulse conduction.
Treatment process involving the injection of fluid into an organ or tissue.
The amount of BLOOD pumped out of the HEART per beat, not to be confused with cardiac output (volume/time). It is calculated as the difference between the end-diastolic volume and the end-systolic volume.
A volatile vasodilator which relieves ANGINA PECTORIS by stimulating GUANYLATE CYCLASE and lowering cytosolic calcium. It is also sometimes used for TOCOLYSIS and explosives.
The innermost layer of the heart, comprised of endothelial cells.
Types of spiral computed tomography technology in which multiple slices of data are acquired simultaneously improving the resolution over single slice acquisition technology.
The vein accompanying the femoral artery in the same sheath; it is a continuation of the popliteal vein and becomes the external iliac vein.
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.
Theoretical representations that simulate the behavior or activity of the cardiovascular system, processes, or phenomena; includes the use of mathematical equations, computers and other electronic equipment.
Abnormalities in any part of the HEART SEPTUM resulting in abnormal communication between the left and the right chambers of the heart. The abnormal blood flow inside the heart may be caused by defects in the ATRIAL SEPTUM, the VENTRICULAR SEPTUM, or both.
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)
Single pavement layer of cells which line the luminal surface of the entire vascular system and regulate the transport of macromolecules and blood components.
Drugs or agents which antagonize or impair any mechanism leading to blood platelet aggregation, whether during the phases of activation and shape change or following the dense-granule release reaction and stimulation of the prostaglandin-thromboxane system.
Developmental abnormalities involving structures of the heart. These defects are present at birth but may be discovered later in life.
Salts or esters of LACTIC ACID containing the general formula CH3CHOHCOOR.
A conical fibro-serous sac surrounding the HEART and the roots of the great vessels (AORTA; VENAE CAVAE; PULMONARY ARTERY). Pericardium consists of two sacs: the outer fibrous pericardium and the inner serous pericardium. The latter consists of an outer parietal layer facing the fibrous pericardium, and an inner visceral layer (epicardium) resting next to the heart, and a pericardial cavity between these two layers.
The creation and display of functional images showing where the blood is flowing into the MYOCARDIUM by following over time the distribution of tracers injected into the blood stream.
A spectrum of congenital, inherited, or acquired abnormalities in BLOOD VESSELS that can adversely affect the normal blood flow in ARTERIES or VEINS. Most are congenital defects such as abnormal communications between blood vessels (fistula), shunting of arterial blood directly into veins bypassing the CAPILLARIES (arteriovenous malformations), formation of large dilated blood blood-filled vessels (cavernous angioma), and swollen capillaries (capillary telangiectases). In rare cases, vascular malformations can result from trauma or diseases.
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.
Echocardiography applying the Doppler effect, with the superposition of flow information as colors on a gray scale in a real-time image.
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.
Measurement of intracardiac blood flow using an M-mode and/or two-dimensional (2-D) echocardiogram while simultaneously recording the spectrum of the audible Doppler signal (e.g., velocity, direction, amplitude, intensity, timing) reflected from the moving column of red blood cells.
A paravertebral sympathetic ganglion formed by the fusion of the inferior cervical and first thoracic ganglia.
A form of CARDIAC MUSCLE disease that is characterized by ventricular dilation, VENTRICULAR DYSFUNCTION, and HEART FAILURE. Risk factors include SMOKING; ALCOHOL DRINKING; HYPERTENSION; INFECTION; PREGNANCY; and mutations in the LMNA gene encoding LAMIN TYPE A, a NUCLEAR LAMINA protein.
A pouch or sac developed from a tubular or saccular organ, such as the GASTROINTESTINAL TRACT.
Abnormal communication between two ARTERIES that may result from injury or occur as a congenital abnormality.
Substances used to allow enhanced visualization of tissues.
Pressure, burning, or numbness in the chest.
Post-systolic relaxation of the HEART, especially the HEART VENTRICLES.
Surgery performed on the heart or blood vessels.
Removal of an implanted therapeutic or prosthetic device.
The flow of BLOOD through or around an organ or region of the body.
Damage to the MYOCARDIUM resulting from MYOCARDIAL REPERFUSION (restoration of blood flow to ischemic areas of the HEART.) Reperfusion takes place when there is spontaneous thrombolysis, THROMBOLYTIC THERAPY, collateral flow from other coronary vascular beds, or reversal of vasospasm.
Pathological conditions involving the HEART including its structural and functional abnormalities.
A distribution in which a variable is distributed like the sum of the squares of any given independent random variable, each of which has a normal distribution with mean of zero and variance of one. The chi-square test is a statistical test based on comparison of a test statistic to a chi-square distribution. The oldest of these tests are used to detect whether two or more population distributions differ from one another.
Impaired impulse conduction from HEART ATRIA to HEART VENTRICLES. AV block can mean delayed or completely blocked impulse conduction.
Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from INTUBATION in that the tube here is used to restore or maintain patency in obstructions.
A widely used non-cardioselective beta-adrenergic antagonist. Propranolol has been used for MYOCARDIAL INFARCTION; ARRHYTHMIA; ANGINA PECTORIS; HYPERTENSION; HYPERTHYROIDISM; MIGRAINE; PHEOCHROMOCYTOMA; and ANXIETY but adverse effects instigate replacement by newer drugs.
A congenital defect in which the heart is located on the right side of the THORAX instead of on the left side (levocardia, the normal position). When dextrocardia is accompanied with inverted HEART ATRIA, a right-sided STOMACH, and a left-sided LIVER, the combination is called dextrocardia with SITUS INVERSUS. Dextrocardia may adversely affect other thoracic organs.
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.
Agents used for the treatment or prevention of cardiac arrhythmias. They may affect the polarization-repolarization phase of the action potential, its excitability or refractoriness, or impulse conduction or membrane responsiveness within cardiac fibers. Anti-arrhythmia agents are often classed into four main groups according to their mechanism of action: sodium channel blockade, beta-adrenergic blockade, repolarization prolongation, or calcium channel blockade.
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.
A neurotransmitter found at neuromuscular junctions, autonomic ganglia, parasympathetic effector junctions, a subset of sympathetic effector junctions, and at many sites in the central nervous system.
The study of the electrical activity and characteristics of the HEART; MYOCARDIUM; and CARDIOMYOCYTES.
Precursor of epinephrine that is secreted by the adrenal medulla and is a widespread central and autonomic neurotransmitter. Norepinephrine is the principal transmitter of most postganglionic sympathetic fibers and of the diffuse projection system in the brain arising from the locus ceruleus. It is also found in plants and is used pharmacologically as a sympathomimetic.
A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.
An abnormally rapid ventricular rhythm usually in excess of 150 beats per minute. It is generated within the ventricle below the BUNDLE OF HIS, either as autonomic impulse formation or reentrant impulse conduction. Depending on the etiology, onset of ventricular tachycardia can be paroxysmal (sudden) or nonparoxysmal, its wide QRS complexes can be uniform or polymorphic, and the ventricular beating may be independent of the atrial beating (AV dissociation).
Use of a balloon CATHETER to block the flow of blood through an artery or vein.
A normal intermediate in the fermentation (oxidation, metabolism) of sugar. The concentrated form is used internally to prevent gastrointestinal fermentation. (From Stedman, 26th ed)
The hemodynamic and electrophysiological action of the RIGHT ATRIUM.
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.
Studies which start with the identification of persons with a disease of interest and a control (comparison, referent) group without the disease. The relationship of an attribute to the disease is examined by comparing diseased and non-diseased persons with regard to the frequency or levels of the attribute in each group.
The omission of atrial activation that is caused by transient cessation of impulse generation at the SINOATRIAL NODE. It is characterized by a prolonged pause without P wave in an ELECTROCARDIOGRAM. Sinus arrest has been associated with sleep apnea (REM SLEEP-RELATED SINUS ARREST).
Drugs that bind to but do not activate beta-adrenergic receptors thereby blocking the actions of beta-adrenergic agonists. Adrenergic beta-antagonists are used for treatment of hypertension, cardiac arrhythmias, angina pectoris, glaucoma, migraine headaches, and anxiety.
The study of the generation and behavior of electrical charges in living organisms particularly the nervous system and the effects of electricity on living organisms.
An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration.
Failure of equipment to perform to standard. The failure may be due to defects or improper use.
Ear-shaped appendage of either atrium of the heart. (Dorland, 28th ed)
Veins draining the cerebrum.
The period following a surgical operation.
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.
Generally, restoration of blood supply to heart tissue which is ischemic due to decrease in normal blood supply. The decrease may result from any source including atherosclerotic obstruction, narrowing of the artery, or surgical clamping. Reperfusion can be induced to treat ischemia. Methods include chemical dissolution of an occluding thrombus, administration of vasodilator drugs, angioplasty, catheterization, and artery bypass graft surgery. However, it is thought that reperfusion can itself further damage the ischemic tissue, causing MYOCARDIAL REPERFUSION INJURY.
The process of generating three-dimensional images by electronic, photographic, or other methods. For example, three-dimensional images can be generated by assembling multiple tomographic images with the aid of a computer, while photographic 3-D images (HOLOGRAPHY) can be made by exposing film to the interference pattern created when two laser light sources shine on an object.
Surgical insertion of synthetic material to repair injured or diseased heart valves.
Diseases which have one or more of the following characteristics: they are permanent, leave residual disability, are caused by nonreversible pathological alteration, require special training of the patient for rehabilitation, or may be expected to require a long period of supervision, observation, or care. (Dictionary of Health Services Management, 2d ed)
The period of time following the triggering of an ACTION POTENTIAL when the CELL MEMBRANE has changed to an unexcitable state and is gradually restored to the resting (excitable) state. During the absolute refractory period no other stimulus can trigger a response. This is followed by the relative refractory period during which the cell gradually becomes more excitable and the stronger impulse that is required to illicit a response gradually lessens to that required during the resting state.
Implantable devices which continuously monitor the electrical activity of the heart and automatically detect and terminate ventricular tachycardia (TACHYCARDIA, VENTRICULAR) and VENTRICULAR FIBRILLATION. They consist of an impulse generator, batteries, and electrodes.
The 10th cranial nerve. The vagus is a mixed nerve which contains somatic afferents (from skin in back of the ear and the external auditory meatus), visceral afferents (from the pharynx, larynx, thorax, and abdomen), parasympathetic efferents (to the thorax and abdomen), and efferents to striated muscle (of the larynx and pharynx).
A group of diseases in which the dominant feature is the involvement of the CARDIAC MUSCLE itself. Cardiomyopathies are classified according to their predominant pathophysiological features (DILATED CARDIOMYOPATHY; HYPERTROPHIC CARDIOMYOPATHY; RESTRICTIVE CARDIOMYOPATHY) or their etiological/pathological factors (CARDIOMYOPATHY, ALCOHOLIC; ENDOCARDIAL FIBROELASTOSIS).
Agents that affect the rate or intensity of cardiac contraction, blood vessel diameter, or blood volume.
A nonselective alpha-adrenergic antagonist. It is used in the treatment of hypertension and hypertensive emergencies, pheochromocytoma, vasospasm of RAYNAUD DISEASE and frostbite, clonidine withdrawal syndrome, impotence, and peripheral vascular disease.
A condition characterized by the growth of unencapsulated masses of ADIPOSE TISSUE symmetrically deposited around the neck, shoulders, or other sites around the body.

Coronary artery fistula from the left circumflex to the coronary sinus. (1/174)

A 27-year-old woman, who had received mitral valve repair for mitral regurgitation resulting from infective endocarditis, was admitted for a close examination of abnormal echocardiographic findings in the left atrium. Transthoracic echocardiography showed trivial mitral regurgitation with normal left ventricular contraction and dilatation of the coronary sinus. Auscultation revealed a grade 2 continuous murmur along the left sternal border. Transesophageal echocardiography demonstrated a marked dilatation of the coronary sinus just behind the posterior wall of the left atrium and turbulent blood flow in the dilated coronary sinus. Cardiac catheterization showed no significant step-up of oxygen saturation in the right heart and normal pulmonary artery pressure. Coronary angiography revealed a markedly dilated and tortuous circumflex coronary artery connected to the coronary sinus through a fistula. A left circumflex artery with a fistulous connection to the coronary sinus is extremely rare.  (+info)

Thoracic vein arrhythmias. (2/174)

The thoracic veins are important foci for the genesis of ectopic atrial tachycardia and play a critical role in the pathophysiology of paroxysmal and permanent atrial fibrillation. The pulmonary veins have the highest arrhythmogenic activity and other venous structures (eg, superior vena cava, coronary sinus and ligament of Marshall) have also been shown arrhythmogenic potential. Thoracic veins contain cardiomyocytes with distinct electrical activities and complex anatomical structures. This review summaries the current understanding of the basic and clinical electrophysiology of thoracic vein arrhythmias.  (+info)

Catheter ablation therapy for atrial fibrillation: current advancements in strategies. (3/174)

Curing atrial fibrillation (AF) by catheter ablation has significantly improved patient morbidity and mortality. The circumferential pulmonary vein isolation technique is established as the principal procedure, with a high cure rate and acceptable safety, for paroxysmal AF, but new adjunctive ablation strategies targeting the AF substrates and sources for long-standing persistent/chronic AF have been developed. These new techniques include linear ablation, complex fractionated atrial electrogram guided ablation, dominant frequency map-guided ablation, ganglionated plexi ablation and disconnection of the coronary sinus and superior vena cava to ablate the AF substrates and sources. The long-term usefulness of the established technique and these innovative adjunctive approaches for the treatment of AF remains to be investigated.  (+info)

A novel technique for placement of coronary sinus pacing leads in cardiac resynchronization therapy. (4/174)

A new technique for the placement of left ventricular pacing leads in the tributaries of the coronary sinus (CS) is described. Antegrade visualization of the CS is accomplished by selective coronary angiography, and a hydrophilic 0.032 in. wire is advanced along the CS. This facilitates the advancement of a CS sheath over a multipurpose diagnostic catheter. A hydrophilic angioplasty wire is then utilized for the negotiation of the inferior left ventricular vein and successful placement of the left ventricular pacing lead.  (+info)

Stabilization of the coronary sinus lead position with permanent stylet to prevent and treat dislocation. (5/174)

AIMS: Coronary sinus (CS) leads used for cardiac resynchronization have undergone development in the last years. However, dislocation rate remained high. We explain a simple method to stabilize the CS lead position. METHODS AND RESULTS: Thirty-five patients (11 females, aged 60 +/- 9.2 years) were treated with this method. An over-the-wire left ventricular (LV) pacing lead system was introduced and lodged in the vessel. Then, a stiff stylet was inserted and kept into the CS lead and end of the stylet was cut by a scissor (permanent stylet technique). Pacing and sensing properties of all leads were checked and the guiding sheath was removed. Control echocardiography did not show pericardial effusion. The mean LVpacing threshold was 1.2 +/- 0.8 V and the mean impedance was 625 +/- 143 Omega at the implantation. During follow-up (12.5 +/- 2.5 months), there were no statistically significant changes in pacing threshold and impedance when compared with the implantation measurements. At the last patient visit, the mean LV pacing threshold was 1.1 +/- 0.8 V and the mean impedance was 620 +/- 140 Omega. Impedance measurements did not suggest lead insulation failure. No LV lead dislocations were detected in our 35 cases during the follow-up. CONCLUSION: Permanent stylet technique seems to be a safe and effective procedure to stabilize CS lead position as demonstrated by our 1-year long follow-up results.  (+info)

A novel method of multisite atrial pacing, incorporating Bachmann's bundle area and coronary sinus ostium, for electrical atrial resynchronization in patients with recurrent atrial fibrillation. (6/174)

AIMS: The aim of the study was to assess efficacy and safety of a novel method of multisite atrial pacing, incorporating Bachmann's bundle (BB) and coronary sinus (CS) ostium pacing, which was implemented for the first time in atrial fibrillation (AF) patients with intra-atrial conduction delay. METHODS AND RESULTS: This follow-up study included 97 patients with drug refractory symptomatic AF, sinus node dysfunction, sinus P-wave > or = 120 ms, and normal atrioventricular conduction. Pacing efficacy was assessed on the basis of two main endpoints: successful rhythm control and the absence of documented or symptomatic AF. During the mean 2.3 +/- 0.7 years of follow-up, the survival rate was 99%, pacing maintenance rate 97%, and the need for re-operation 5%. Rhythm control efficacy was 90%, and 14 patients had no evidence of recurrent AF. After implantation, the mean number of anti-arrhythmic drugs used (P < 0.0001), the need for cardioversion (P < 0.01), and the incidence (P < 0.0001) and duration (P < 0.001) of AF-related hospitalizations decreased. P-wave duration with multisite atrial pacing was shorter than during sinus rhythm, BB, and CS pacing (P < 0.0001). CONCLUSION: A novel method of multisite atrial pacing is safe, provides effective long-term rhythm control, and decreases the necessity for adjunctive therapies in patients with refractory AF and intra-atrial conduction delay.  (+info)

Anatomic relations of the Marshall vein: importance for catheterization of the coronary sinus in ablation procedures. (7/174)

AIMS: Our objective was to study the anatomic relations of the human left atrial oblique vein (Marshall vein), particularly of its ostium opening into the coronary sinus, in order to guide ablation procedures related to that vein. METHODS AND RESULTS: The study was carried out in 23 heart-specimens (mean weight 446 +/- 204 g) of individuals whose mean ages were 43 +/- 21 years, 20 males. The coronary sinus was opened longitudinally, exposing the ostium of the tributary veins; the Vieussens valve was looked for, as well as its relationship to the left atrial oblique vein. The diameters of the left atrial oblique vein and the coronary sinus ostia were measured and the distance between them was determined. The left atrial oblique vein could be identified in 20 (87%) of the hearts, while the Vieussens valve was present in 17 (74%) of the specimens (in 16 of which the left atrial oblique vein was identified). In such condition, the vein was adjacent to the Vieussens valve and proximally positioned relative to the coronary sinus ostium in most of them (14/16 cases). The mean diameters of the left atrial oblique vein and of the coronary sinus ostia were, respectively, 1.23 +/- 0.38 and 8.22 +/- 1.88 mm. The mean distance between both ostia was 30.9 +/- 10.2 mm. CONCLUSION: When present, the left atrial oblique vein can be easily recognized, adjacent to the Vieussens valve. The mean distance between the coronary sinus opening and left atrial oblique vein ostium was around 30 mm, independently of the heart weight and the presence of cardiomegaly.  (+info)

Functional bundle branch block and orthodromic reciprocating tachycardia cycle length: do not bet on accessory pathway location. (8/174)

AIMS: To show 2 examples in which the analysis of the effect of bundle branch block on orthodromic reciprocating tachycardia cycle length was misleading. METHODS AND RESULTS: We performed an electrophysiological study in two patients with orthodromic reciprocating tachycardia showing a transition from wide to narrow QRS during tachycardia. Our two cases of left bundle branch block during reciprocating tachycardia using infero-septal pathways show that ventricular to atrial conduction time prolongation may be larger than 30 ms and may be concealed by a shortening of atrial to ventricular conduction time. In the 2 cases, the atrial insertion of the accessory pathway could be successfully ablated from the right atria at the ostium of the coronary sinus. CONCLUSIONS: The observation of the association between left bundle branch block and cycle length prolongation during reciprocating tachycardia may be associated with a successful ablation at the ostium of the coronary sinus.  (+info)

2] Coronary sinus ASDs are believed to arise from developmental failure of formation of the wall between the coronary sinus and the left atrium.. The coronary sinus is a systemic venous structure embryologically derived primarily from the left common cardinal vein that is continuous with the left anterior cardinal vein. Coronary sinus ASDs involve the inferior and anterior interatrial septa at the usual location of the orifice of the coronary sinus. The orifice of the coronary sinus becomes continuous with the left atrial chamber when a defect occurs in the wall separating the left atrium from the coronary sinus. This arrangement allows shunting between the atria.. From the right atrial aspect of the interatrial septum, the defect may consist of the coronary sinus orifice alone or with additional deficiency of atrial septal tissue around the coronary sinus orifice. On the left atrial side, the defect consists of partial or complete unroofing of the coronary sinus, if the entire superior aspect ...
New life-saving treatments for Coronary artery disease in clinical trial on Assessment of Global Myocardial Perfusion Reserve Using Coronary Sinus Flow Measurements
Abstract. Expanded indications for cardiac resynchronization therapy and the increasing incidence of cardiac implantable electronic device infection have led to an increased need for coronary sinus (CS) lead extraction. The CS presents unique anatomical obstacles to successful lead extraction. Training and facility requirements for CS lead extraction should mirror those for other leads. Here we review the indications, technique, and results of CS lead extraction. Published success rates and complications are similar to those reported for other leads, although multiple techniques may be required. Re-implantation options may be limited, which should be incorporated into pre-procedural decision making.. Link to abstract on PubMed. ...
Sudden occlusion of the left anterior descending branch approximately 2 cm. below the ostium of the left circumflex coronary artery in the dogs heart produces a mortality rate of approximately 50 per cent. In dogs weighing approximately 15 kilos surviving more than 24 hours (average 1 week), an infarction is produced which almost invariably measures 5 x 5 cm. on surface. Following coronary sinus obturation such secondary sudden occlusion of the left anterior descending branch is followed either by no infarction or by a reduction in the size of the infarct. The success of the procedure, quite apart from the mortality rate, depends upon the completeness of the coronary sinus obturation. On the other hand, sudden and complete coronary sinus obturation by itself is associated with a high operative mortality and apparently does not affect the mortality rate following subsequent sudden left anterior descending branch occlusion. Partial persistent obturation of the coronary sinus, however, is in ...
A catheter-based method for coronary sinus mapping, pacing, and ablation, wherein a flexible electrode catheter, having a tip electrode with suspension structure, is pre-shaped to snugly fit into the coronary sinus, so that the tip electrode is positioned into the sinus; the distal section is deflected to expose a predetermined plurality of electrodes; and RF energy is then applied to the coronary sinus tissue through the electrodes to cause activation mapping, and/or ablation.
A coronary sinus catheter for the retrograde infusion of cardioplegia solutions into the coronary sinus. The catheter is adapted for improved retention in the coronary sinus. The catheter comprises a catheter tube having infusion, pressure-sensing and balloon-inflation lumens, an inflatable balloon and a pressure sensor tube in fluid communication with the balloon-inflation lumen for sensing pressure in the inflatable balloon. The internal volume of the pressure sensor tube is relatively non-expansible relative to the internal volume of the inflation balloon in normal operation of the catheter. The balloon includes a plurality of segmented annular ribs.
Webster Supra CS Decapolar (Coronary Sinus Fixed Curve Catheters),Biosense Webster is the source for a complete line of diagnostic coronary sinus catheters for left-sided mapping - all with the quality, reliability and precise performance youve come to expect from the leader in catheter technology. All of our coronary sinus catheters are specifically designed an,medicine,medical supply,medical supplies,medical product
Biventricular pacing is a validated treatment for patients suffering from heart failure resistant to medical treatment. However, up to 30% of the patients are non responsive to this strategy using the coronary sinus approach to pace the Left Ventricle (LV).. It has been demonstrated that the magnitude of the improvement was highly dependant on the LV pacing site. The coronary sinus approach rarely offers more than 1 or 2 potential pacing sites. Resynchronisation using a transeptal approach to pace the left ventricle on the cardiology has been shown feasible on small series. We therefore would like to compare these two approached in a randomised prospective study to confirm the hypotheses that endocardial LV pacing by offering multiple choices for the pacing sites reduces the number of non responders and is associated with greater hemodynamic benefit when compared to the conventional coronary sinus approach. ...
To establish whether pressure-volume areas (PVAs) calculated using the maximum time-varying elastance (Emax) have a relation with myocardial oxygen consumption (MVO2) that improves on other indexes of myocardial oxygen demand, we studied nine dogs of either sex weighing 19-39 kg, which were instrumented with a micromanometer left ventricular (LV) catheter and a Wilton-Webster coronary sinus flow catheter and had red blood cells tagged with technetium-99m for radionuclide angiography. Hemodynamics, coronary sinus flow determinations, and radionuclide angiograms were obtained under control conditions and during three to five steady-state loading conditions (mean +/- SD, 5.6 +/- 0.7). Isochronal pressure-volume data points from each pressure-volume loop were subjected to linear regression analysis to calculate Emax. The Emax relations, diastolic curves, and systolic portions of each pressure-volume loop were used to obtain calibrated PVAs. The Emax PVA (mm Hg.ml.beat-1.100 g-1) and MVO2 (ml ...
Pacemaker Pacemaker P-0 Frenik sinir stimülasyonuna neden olan koroner sinüs leadinin femoral yoldan repozisyonu Fethi Kılıçaslan, Ömer Uz, Alptuğ Tokatlı, Zafer Işılak, Mehmet Uzun, Bekir Yılmaz Cingözbay,
Significance of jet lavage for in vitro and in vivo cement penetration. These guidewires allow the lead to advance easily to the coronary sinus branches. Column в size l0. See BCSC Section 4, Ophthalmic Buy Ladygra and Intraocular Tumors, for more details of the features Buy Ladygra cellular atypia and neoplastic change.
A device for treatment of mitral annulus dilatation comprises an elongate body having two states. In a first of these states the elongate body is insertable into the coronary sinus and has a shape adapting to the shape of the coronary sinus. When positioned in the coronary sinus, the elongate body is transferable to the second state assuming a reduced radius of curvature, whereby the radius of curvature of the coronary sinus and the radius of curvature as well as the circumference of the mitral annulus is reduced.
Coronary sinus definition, a large venous channel in the heart wall that receives blood via the coronary veins and empties into the right atrium. See more.
Concentrations of angiotensin II, endothelin-1, and BNP in the coronary sinus and ascending aorta of patients with heart disease ...
Miracor Medical Systems out of Vienna, Austria has announced that its Pressure-controlled Intermittent Coronary Sinus Occlusion (PICSO) Impulse System has
If the error occurs frequently, request an RMA in order to replace the 6148A module, and mark the module for EFA.%LTL-SP-2-LTL_PARITY_CHECK: LTL parity check request for 0x[hex]ExplanationThis is the result of The outputs of the atrial and ventricular sensing circuits, 82 and 84, are connected to the microcontroller 60 which, in turn, are able to trigger or inhibit the atrial and ventricular No. 4,788,980 (Mann et al.). See the illustration on the side access panel for the correct memory configurations, and reseat the DIMMs accordingly. 216-Memory Size Exceeds Maximum Supported The amount of memory installed exceeds that supported The error is thus corrected and processing returns to FIG. 3. As used herein, the phrase coronary sinus region refers to the vasculature of the left ventricle, including any portion of the coronary sinus, great cardiac vein, left marginal vein, left posterior The switch was still under warranty from the used hardware > reseller, so the blade was replaced. Imprecise ...
Synonyms for cardiac veins, smallest in Free Thesaurus. Antonyms for cardiac veins, smallest. 63 synonyms for vein: blood vessel, mood, style, spirit, way, turn, note, key, character, attitude, atmosphere, tone, manner, bent, stamp, humour, tendency.... What are synonyms for cardiac veins, smallest?
The function of the small cardiac vein is to retrieve blood from the vascular tissues of the heart and drain them into the coronary sinuses, according to anatomyExpert. This process ensures that the...
But theres always one point of a surgical procedure that grabs the doctors gonads, and for device implants, its usually gaining access to the blood vessel where the leads for a pacemaker or defibrillator are to be implanted. You see, poke too deeply, you might hit the patients lung. Poke a half a centimeter higher toward the patients head, you might hit the high-pressure artery rather than the low pressure vein and bleeding will compress the target vein, making it very difficult to cannulate. Dont poke deeply enough, you never get in the vessel. Thats the way these procedures go. (Ive already mentioned that I cheat and use a vascular ultrasound device to find the vessel. I mean, why stress, right ...
Find right answers right now! How would you trace blood from the small cardiac vein to the posterior inter ventricular artery? More questions about Health, how
The appearance of the proximal descending aorta reflects an aortic spindle - this is an anatomical variant where there is a smooth, mild bulge just beyond the aortic isthmus.
AIMS: Mitral isthmus ablation is technically challenging, often requiring both endocardial and epicardial coronary sinus (CS) ablation. Blood flow in the CS and circumflex artery may act as a heat sink and reduce the efficacy of radiofrequency ablation. This study investigates how the CS and circumflex artery diameters affect mitral isthmus ablation. METHODS AND RESULTS: Thirty-five patients underwent ablation for atrial fibrillation. Irrigated-tip catheters were used during mitral isthmus ablation with the following settings: endocardial surface (maximum power: 40-50 W at the annular end of line; maximum temperature: 48°C); CS (maximum power: 25-30 W; maximum temperature: 48°C). The absence of block after 10 min of endocardial ablation led to CS ablation for up to 5 min. If there was still no block, further ablation was at the discretion of the physician. Coronary angiography and CS venography were performed and analysed with quantitative coronary angiography. Mitral isthmus block was achieved in
This is generally performed subsequent to RV lead placement, with the RV lead providing a backup in case of accidental damage to the electric fibers of the heart, causing an asystolic event. As with the RV lead, a guide wire is first inserted, allowing for the insertion of a multi-delivery catheter. The catheter is subsequently maneuvered to the opening of the coronary sinus in the right atrium. From here a contrast media is injected, allowing the surgical team to obtain a coronary sinus phleobogram to direct the placement of the lead into the most suitable coronary vein.[1]. Once the phlebogram has been obtained, the multi-delivery catheter is used to guide in the lead, from the chosen vein of entry, into the right atrium, through the coronary sinus and into the relevant cardiac vein.[1]. Left ventricular lead placement is the most complicated and potentially hazardous element of the operation, due to the significant variability of coronary venous structure. Alterations in heart structure, ...
zcan Ba aran, Ahmet G ler, Can Y cel Karabay, Cevat K rma. A successful percutaneous treatment of a iatrogenic anastomosis between internal mammary artery and great cardiac vein. Anatol J Cardiol. 2013; 13(2): E10- ...
Heart failure patients with left ventricular (LV) ejection fractions of ,35% who are on optimal medical therapy with QRS durations of ≥120 ms on surface electrocardiography have derived clinical benefit from cardiac resynchronization therapy (CRT). Although this well-established and guideline-recommended treatment has shown reductions in heart failure progression and risk for ventricular tachyarrhythmias, there are also shortcomings. Nearly one-third of patients with CRT implants fail to show clinical benefit. Although potential explanations for the lack of response to CRT may be multifactorial, one of the most important prerequisites for successful CRT is proper LV lead placement. And that can be technically challenging.. LV lead placement to deliver CRT typically involves cannulating the coronary sinus, performing coronary venous angiography, selecting a target vein, and advancing the pacing lead into the selected vein to achieve adequate resynchronization. Although it is still an evolving ...
Alternative methods are necessary for cardiac resynchronization therapy when coronary sinus lead implantation fails. We aim to describe a fundamentally new approach using transapical implantation of an active fixation endocardial pacing lead. This technique is based on direct puncture of the left ventricular apex using the standard Seldinger technique. The tip of the lead is positioned with intracavital navigation under fluoroscopy. This method offers advantages for cardiac resynchronization because it is minimally invasive, provides endocardial pacing, and does not involve the mitral valve. ...
Dynamic Coronary Roadmap (DCR) is a navigation support package that allows the users to see a roadmap of the coronary anatomy displayed on live fluoroscopy. By comparing moving structures that are present in both the angiogram and the live fluoroscopy images, with image registration techniques, DCR provides a precise overlay of the coronary vessel tree on top of the live fluoroscopy moving exactly with the cardiac and breathing motion. This same technique can also be used for imaging the coronary venous anatomy for guiding left ventricular lead placement. ...
The hemodynamic, coronary sinus blood flow and myocardial metabolic effects of 0.15 mg/kg body weight of intravenously administered propranolol were studied in 19 patients with coronary artery disease and 6 normal patients. Atrial pacing was performed in all patients and produced angina in 15 of the …
Looking for online definition of cardiac vein, middle in the Medical Dictionary? cardiac vein, middle explanation free. What is cardiac vein, middle? Meaning of cardiac vein, middle medical term. What does cardiac vein, middle mean?
Ablation instruments and techniques are disclosed for accessing portions of the heart wall via the coronary sinus. While shielding the major portion of the sinus and/or the circumflex coronary artery from ablative energy, the present invention provides access to the heart wall to treat atrial fibrillation. In particular, the present invention provides instruments and methods for forming transmural lesions in the left atrium, such as the so-called
An implantable defibrillation lead with steerable characteristics, allowing the lead to be more easily placed within the coronary sinus. The lead comprises an elongated lead body having a proximal end and a distal end. Adjacent the distal end, there is an electrode, preferably a coiled defibrillation electrode placed on the exterior of the elongated lead body. The distal end of the lead body has a permanent set or bend. A torque tube, extending through a lumen in the lead body from the proximal end of the lead to an anchor block adjacent the distal end of the lead, can be rotated by a physician to orient the bend in the lead. A cable passes through the torque tube from the proximal end of the lead through the anchor block to the distal end of the lead. This cable is affixed to a wall of the lumen, preferably in the direction of the bend. Pulling on the cable temporarily changes the bend in the distal end of the lead.
All studies were performed in the electrophysiology laboratory. Patients were premedicated with meperidine or diazepam before the procedure. All antiarrhythmic drugs were discontinued for a minimum of five drug half-lives before the procedure. Standard multipolar catheters with 1-cm interelectrode distance were used for pacing and recording of intracardiac electrograms. These were positioned at the high right atrium, His bundle and right ventricular apex. A fourth catheter was positioned in the coronary sinus with one of the electrodes located at the coronary sinus ostium. Stimulation was performed with rectangular impulses using an EP-2 stimulator (EP Medical Inc.). A standard multichannel recorder was used for hardcopy recording. Three surface electrocardiographic (ECG) leads (I, aVF and V1) were recorded at all times. The intracardiac signals were filtered at a bandpass of 30 to 500 Hz and stored on FM tape. The pacing threshold was determined at the high right atrium and coronary sinus ...
A system and method for navigating coronary vasculature involves use of a guide catheter system which includes a guide catheter, a navigator catheter longitudinally displaceable within the guide catheter, and a deflection arrangement provided at a distal end of the navigator catheter. The guide catheter is advanced to at least a patients coronary sinus ostium, and the navigator catheter is extended from the guide catheter to a location proximate or within an angled vein distal to the coronary sinus ostium. Using the deflection arrangement, a guide wire passing through the navigation catheter is directed into the angled vein. A lead having an open lumen is advanced over the guide wire to direct the lead to an implant site within the angled vein.
Definition of thebesian circulation. Provided by Stedmans medical dictionary and Drugs.com. Includes medical terms and definitions.
A sinus ostium is the opening that connects a sinus to the nasal cavity itself. It is a tight area that tends to have a higher percentage of cilia than the surrounding mucosa. If the sinus ostium is blocked this will cause an accumulation of fluid in the sinus ...
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My anesthesiologist placed a coronary sinus catheter. I rarely see this when I code, so I am stuck on which CPT code to use. Any good cardiac coders w
TY - JOUR. T1 - Anatomical repair of a persistent left superior vena cava into the left atrium. AU - Ugaki, Shinya. AU - Kasahara, Shingo. AU - Fujii, Yasuhiro. AU - Sano, Shunji. PY - 2010/8. Y1 - 2010/8. N2 - The anatomy of a persistent left superior vena cava (SVC) to the left atrium (LA) without the innominate vein can make it challenging to complete intracardiac repair. We reviewed our five cases of the direct end-to-side anastomosis of SVCs to facilitate anatomical repair of SVC-right atrial connection for biventricular repair. Diagnoses were two partial atrioventricular septal defect with left isomerism, one complete atrioventricular septal defect (CAVSD) with left isomerism, one CAVSD without isomerism and one atrioventricular discordance and double outlet right ventricle with right isomerism. Mean age at the operation was 20±23 months (4-58 months) and body weight was 7.8±3.4 kg (4.8-12.7 kg). After completion of intracardiac repair, the SVC to LA was divided and end-to-side ...
CONGENITAL anomalies of the great veins of the neck are relatively infrequent. Persistent left superior vena cava (PLSVC) is an embryologic remnant of the left superior cardinal vein seen in 0.1 to 0.3% of healthy adults.1 PLSVC runs between the left pulmonary veins and the left atrial appendage enlarging the coronary sinus as it enters the atrium. When present, it can affect placement of central catheters, pacemakers, and cardiopulmonary bypass. It is important to be aware of this variation and to recognize it in imaging studies ...
Persistent left superior vena cava (PLSVC) and horseshoe kidney (HSK) are common congenital abnormalities; however presence of both in the same person is extremely rare. A patient with hepatitis C cirrhosis awaiting transplant presented with worsening liver dysfunction, diagnosed with acute renal failure secondary to hepatorenal syndrome, and required X-ray fluoroscopy guided tunneled venous catheter placement for hemodialysis. Review of imaging studies demonstrated coexistence of PLSVC and HSK. PLSVC in adulthood is usually incidental with the most common drainage pattern being without physiologic dysfunction. Isolated horseshoe kidney is still the most common of renal fusion anomalies; however etiology of coexistent PLSVC remains unknown.
© 2016 American College of Cardiology Foundation. Published by Elsevier. Objectives The goal of this study was to assess the contemporary and historical success rates of transvenous left ventricular (LV) lead placement for cardiac resynchronization therapy (CRT), their change over time, and the reasons for failure. Background In selected patients, CRT improves morbidity and mortality, but the placement of the LV lead can be technically challenging. Methods A literature search was used to identify all studies reporting success rates of LV lead placement for CRT via the coronary sinus (CS) route. A total of 164 studies were identified, and a meta-analysis was performed. Results The studies included 29,503 patients: 74% (95% confidence interval [CI]: 72% to 76%) were male; their mean age was 66 years (95% CI: 65 to 67); their mean New York Heart Association functional class was 2.8 (95% CI: 2.7 to 2.9); the mean LV ejection fraction was 26% (95% CI: 25% to 28%); and the mean QRS duration was 155 ms (95%
Mitral isthmus ablation forms part of the electrophysiologists armoury in the catheter ablation treatment of atrial fibrillation. It is well recognised however, that mitral isthmus ablation is technically challenging and incomplete ablation may be pro-arrhythmic, leading some to question its role. This article first reviews the evidence for the use of adjunctive mitral isthmus ablation and its association with the development of macroreentrant perimitral flutter. It then describes the practical techniques of mitral isthmus ablation, with particular emphasis on the assessment of bi-directional mitral isthmus block. The anatomy of the mitral isthmus is also discussed in order to understand the possible obstacles to successful ablation. Finally, novel techniques which may facilitate mitral isthmus ablation are reviewed.
Although CRT is now an accepted therapeutic modality for patients with HF and conduction disturbances, a significant proportion of patients remain nonresponders.1 Our study shows that LV lead location may be a significant contributor to this nonresponsiveness and that pacing the apical region of the LV is associated with a worse clinical outcome, including significantly higher mortality rates. Our results also demonstrate that LV lead location along the short axis (ie, anterior, lateral, or posterior wall) does not influence the primary end points of HF hospitalization and all-cause mortality. This is the first study from a randomized clinical trial to examine the impact of LV lead location on clinical outcome in which venous angiography and LV lead position data were collected prospectively and evaluated independently.. Prior work has recommended that targeting the lateral or posterolateral wall by way of either an appropriate coronary sinus branch or surgical (epicardial) placement is a ...
Infective endocarditis (IE) is a rare disease with high mortality. Right-sided IE accounts for 5-10% of cases of IE. The tricuspid valve is most commonly affected, oppositely in coronary sinus (CS). The diagnoses, treatments and outcomes of CS vegetation has not been summarized yet. We present a 71-year-old man complained of cough and fever. Transthoracic echocardiography revealed the aneurysmal dilated CS with the band medium-echo mobile structure. A sinus venosus atrial septal defect has been detected. He had a persistent left superior vena cava which drained the right atrium via the aneurysmal dilated CS. Blood cultures were positive for Staphylococcus aureus. After intravenous antibiotic therapy, he had the symptom of dyspnea. The suspicious diagnosis is recurrent septic lung emboli which was confirmed by thoracic contrast enhanced computed tomography. The thoracotomy was performed to repair the atrial septum and remove the CS vegetation. Ten days later, the patient was discharged with only mild
For patients with advanced heart failure, Cardiac Resynchronization Therapy (CRT) has been a major improvement. The treatment improves symptoms and prolongs life in selected patients with heart failure. However, with the current selection criteria and methods for implanting the pacemaker, only 60-70% of the patients derive significant benefit from the treatment.. New imaging techniques, including advanced ultrasound and computed tomography, in combination with new versatile multi-pole electrodes, have made an individually tailored therapy possible. Using these techniques in combination, the study will investigate the effect of individually based optimal placement of the pacemaker electrodes vs. standard care. The optimal LV electrode position is defined as pacing a viable segment with the latest mechanical delay, targeting a specific segment of the coronary sinus as visualised on cardiac CT. The hypothesis is that this will increase the number of positive responders from 65% to 85%. ...
A 6 month od baby with Wolfgang-Gollop syndrome was catheterized before surgery for tetralogy of Fallot. Echocardiography had revealed bilateral superior vena cava with LSVC draining into a dilated coronary sinus. In order to assess the need for canulating or ligating the persistent left superior vena cava (LSVC) at time of surgery, we inserted an 5 Fr end-hole catheter into the LSVC via the right atrium and coronary sinus. It was then advanced into the left azygos vein and angiography performed. A large communicating vein connecting the 2 asygos veins was seen beind the heart. Persistent LSVC has been described in tetralogy of Fallot. In our case, although no classical communicating wein could be found by echocardiography, selective angiography revealed a peculiar communication between bilateral azygos veins. The baby underwent successful surgical repair with no need for left superior vena cava cannulation during cardiopulmonary bypass ...
TY - JOUR. T1 - Stimolazione VDD monocatetere con sensing in seno coronarico. T2 - Un caso di impianto attraverso vena cava superiore sinistra persistente. AU - Bielli, M.. AU - Parravicini, U.. AU - Zanetta, M.. AU - Mezzani, A.. AU - Zenone, F.. AU - Franchetti, N.. AU - Di Camillo, T.. AU - Iraghi, G.. AU - Perucca, A.. PY - 2000. Y1 - 2000. N2 - We report the case of a VDD single-lead pacemaker implantation through a persistent left superior vena cava in a 48-year-old male patient with recurrent episodes of syncope due to paroxysmal atrioventricular block. VDD lead insertion through the anomalous venous structure led to positioning of the floating sensing dipole into the coronary sinus, in a very large and stable sensed atrial signal due to the close anatomic relationship between the coronary sinus and the left atrium. Shortness of the sensed atrioventricular interval allowed VDD stimulation to occur only in the case of paroxysmal atrioventricular block.. AB - We report the case of a VDD ...
Definition: In PLSVC, the left brachiocephalic vein does not develop fully and the left upper limb and head & neck drain into the right atrium via the coronary sinus. However, from a morphological point of view, the anatomical drainage of a persistent left superior vena cava is always into the coronary sinus. ...
Asymmetric ventricles , with left ventricle smaller than right is seen occasionally. The following conditions should be thought of : 1. Co-arctation of Aorta 2. T.A.P.V.D. - Total Anomalous Pulmonary Venous Drainage ( or Connections ) 3.Persistent Left Superior Vena Cava 4.Dilated Coronary Sinus and rarely due to 5. Restricted Ductal Flow due to kinking…
Asymmetric ventricles , with left ventricle smaller than right is seen occasionally. The following conditions should be thought of : 1. Co-arctation of Aorta 2. T.A.P.V.D. - Total Anomalous Pulmonary Venous Drainage ( or Connections ) 3.Persistent Left Superior Vena Cava 4.Dilated Coronary Sinus and rarely due to 5. Restricted Ductal Flow due to kinking…
A 22-year-old girl was admitted to our cardiology institute with Permanent tachycardia in last 6 years for diagnostic assessment and therapy. Doppler echocardiography show structural of heart is normal, ECG revealed a varied resting rate from 120 to 140 bpm, 1:1 AV ratio and long RP interval. P wave morphology was negative on leads I, II, III, aVF, and V4 to V6, positive on lead V1, and diphasic 1 /2 on lead aVL. Electrophysiology (EP) study was performed, Although the exactly mapping was performed in left inferior pulmonary vein and mitral annulus, however, no target point was found ahead of CS1-2, the tried discharge was invalid. The ablation catheter was entered the coronary sinus to guide electrical isolation, curing the tachycardia. The ECG returned to normal sinus rhythm. Through three years follow up, no AT recurrence.
An assembly and method for effecting the condition of a mitral valve annulus of a heart includes a guide wire configured to be fed into the coronary sinus of the heart, and a mitral valve annulus therapy device configured to be slidingly received on the guide wire and advanced into the coronary sinus of the heart on the guide wire. A guide tube may further be employed for guiding the device into the coronary sinus. An introducer which may be employed for pushing the device into or pulling device out of the heart has a mechanism for releasably locking to the device. This enables substitution of the device if needed. Also, the crossover point of the circumflex artery and coronary sinus may be determined and avoided when the device is deployed.
Erondu-Cymet Syndrome, 978-620-0-83887-2, Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Erondu-Cymet syndrome is a syndrome caused by a translocation on the . The genetic for people with this condition is 46, XY, inv(21)(q11.2q22.1). Findings in these patients include: hypotension, hypoxemia, seizures, and impairment of cognitive ability. Patients with this condition may have persistent left superior vena cava that drains into the left atrium, as well as pulmonary arterio-venous malformations. Erondu-Cymet Syndrome was discovered in 2006 by Ugochi Erondu and . In 2000, researchers working on the announced that they had determined the sequence of that make up this chromosome. Chromosome 21 was the second human chromosome to be fully sequenced.
Publisher reserves the right to grant or refuse permission to third parties to republish all or part of the article or translations thereof. To republish, such third parties must obtain written permission from the Publisher. (This is in accordance with the Copyright Statute, United States Code, Title 17. Exception: If all authors were bona fide officers or employees of the U.S. Government at the time the paper was prepared, the work is a work of the US Government (prepared by an officer or employee of the US Government as part of official duties), and therefore is not subject to US copyright; such exception should be indicated on signature lines. If this work was prepared under US Government contract or grant, the US Government may reproduce, royalty-free, all or portions of this work and may authorize others to do so, for official US Government purposes only, if the US Government contract or grant so requires.. I have participated in the conception and design of this work and in the writing ...
6 ASSESSMENT OF PFO Characterisation Tunnel length / height / width Flap separation / adhesion - RA/LA edge, body Flap retraction - spontaneous / potential Tunnel openings PFD (patent foramen defect)- ASD structurally merged with PFO or PFO with functional ASD ...
Treatment is simply delivering cyanoacrylate inside of disfunctioning vein segment continuously while applying pressure over target vein segments.
Despite the enthusiasm behind the use of ultrasound to facilitate central venous access, little data exists regarding best practice. Likely, the most popular technique of using ultrasound is the real-time, out-of plane approach in which the IJ is imaged on short-axis. This technique has the distinct limitation in that the needle will cross the ultrasound beam only once, resulting in a short axis cut of the needle. This image may not represent the tip of the needle, but rather the shaft of the needle. If the operator chooses an angle of insertion in which the needle crosses the ultrasound beam posterior to the vein, then they will never see the needle prior to puncture of the vein. Further, in the out-of-plane approach, the operator can have challenges in determining whether the needle is too far lateral or medial with respect to the target vein. These issues are compounded by the tendency of the operator to advance the needle when it is not visualized on the screen (7). With the out-of-plane ...
Septum Spurium, 978-613-9-11449-8, Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. During development of the heart, the orifice of the coronary sinus lies obliquely, and is guarded by two halves, the right and left venous valves; above the opening these unite with each other and are continuous with a fold named the septum spurium. The heart is a myogenic muscular organ found in all animals with a circulatory system (including all vertebrates), that is responsible for pumping blood throughout the blood vessels by repeated, rhythmic contractions. The term cardiac (as in cardiology) means related to the heart and comes from the Greek καρδιά, kardia, for heart.
Fig. 3.1 Common anatomical variants of EA/TEF anomalies. a EA with distal TEF, b isolated EA with no TEF, c H-type TEF, d proximal and distal TEF, e EA with proximal TEF. (Reprinted with permission from [4], Fig. 2.1. EA esophageal atresia, TEF trache-esophageal fistula) Table 3.1 Classification of EA/TEF anomalies and frequency. (Reprinted with permission…
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Obstruction of the natural sinus ostia prevents normal mucus drainage. The ostia can be blocked by mucosal swelling or local causes (eg, trauma, rhinitis), as well as by certain inflammation-associate... more
Thebesian valve: The valve of the coronary sinus. Mettenleiter, A (2001). "Adam Christian Thebesius (1686-1732) and the ... Thebesius is known for his studies of coronary circulation. In his 1708 graduate thesis, De circulo sangunis in corde (from ...
... and into the coronary sinus. The coronary sinus empties into the right atrium. The openings of the smallest cardiac veins are ... Wearn, JT (1941). "Morphological and functional alterations of the coronary circulation". Bulletin of the New York Academy of ... Wearn, JT; Mettier, SR; Klumpp, TG; Zschiesche, LJ (1933). "The nature of the vascular communications between the coronary ... Wearn, JT; Mettier, SR; Klumpp, TG; Zschiesche, LJ (1933). "The nature of the vascular communications between the coronary ...
The coronary sinus is a vein continuing off of the great cardiac vein. It collects blood from the ventricular veins of the ... Atrial patches can be applied to areas of concern such as the roof of the left atrium or where the coronary sinus should be. ... Essentially, this coronary sinus takes de-oxygenated blood from veins in the heart muscle (epicardial ventricular veins) and ... Surgeons reroofed the coronary sinus, reconstructed the atrial septum to prevent drainage, and redirected the PLSVC to the ...
It merges with the oblique vein of the left atrium to form the coronary sinus, which drains into the right atrium. At the ... This is the Vieussens valve of the coronary sinus. It receives tributaries from the left atrium and from both ventricles: one, ... The great cardiac vein (left coronary vein) begins at the apex of the heart and ascends along the anterior longitudinal sulcus ... junction of the great cardiac vein and the coronary sinus, there is typically a valve present. ...
October 2018). "Rivaroxaban in Patients with Heart Failure, Sinus Rhythm, and Coronary Disease". The New England Journal of ... Coronary Artery Disease (also known as coronary heart disease or ischemic heart disease) is a result of the build-up of ... "Coronary angioplasty and stent insertion". nhs.uk. 2017-10-24. Retrieved 2022-04-05. "Coronary artery bypass graft". 24 October ... Coronary angioplasty: the insertion of a thin tube with a balloon on the end into the clogged artery which becomes inflated to ...
When introduced into the coronary sinus, it is called retrograde cardioplegia. Whilst there are several cardioplegic solutions ... In coronary surgery, there are various alternatives to cardioplegia to perform the operation. One is off-pump coronary surgery ... Once the procedure on the heart vessels (coronary artery bypass grafting) or inside the heart such as valve replacement or ... Blood supply to the heart arises from the aortic root through coronary arteries. Cardioplegia in diastole ensures that the ...
They freeze the damaged muscle which is near the coronary sinus. As the muscle has been destroyed, House says 'She'll be fine ...
... a Valsalva sinus. The origins of the two coronary arteries are sited in two Valsalva sinuses, each named after the coronary ... Alternatively, a retrograde cardioplegic cannula can be inserted at the coronary sinus. Some surgeons also opt to place a vent ... Patients with moderate aortic valve stenosis who need another type of cardiac surgery (i.e. coronary artery bypass surgery) ... The surgeon incises the aorta a few milometers above the sinotubular junction (just above the coronary ostia, where the ...
"Amino acid sequence of atrial natriuretic peptides in human coronary sinus plasma". Biochemical and Biophysical Research ...
... right and posterior aortic sinuses are also called left-coronary, right-coronary and non-coronary sinuses.: 191 The aortic arch ... which are called the aortic sinuses or the sinuses of Valsalva. The left aortic sinus contains the origin of the left coronary ... The posterior aortic sinus does not give rise to a coronary artery. For this reason the left, ... artery and the right aortic sinus likewise gives rise to the right coronary artery. Together, these two arteries supply the ...
Unlike most cardiac veins, they do not end in the coronary sinus. Instead, these veins drain directly into the anterior wall of ...
The coronary veins all empty into the coronary sinus which empties into the right atrium. The dural venous sinuses within the ... Most of the blood of the cardiac veins returns through the coronary sinus. The anatomy of the veins of the heart is very ... heart veins that go into the coronary sinus: the great cardiac vein, the middle cardiac vein, the small cardiac vein, the ... In the coronary circulation the veins that remove the deoxygenated blood from the heart muscle are known as cardiac veins or ...
Woollett, IF; Pinney, S; Magnano, AR (2005). "Balloon dilatation of coronary sinus spasm during placement of a biventricular ... "Anti-HLA antibodies are associated with restenosis after percutaneous coronary intervention for cardiac allograft vasculopathy ... Pinney, SP; Wasserman, HS (2002). "Anterior myocardial infarction, acute aortic dissection and anomalous coronary artery". ...
... where blood drains into coronary sinus or directly into right atrium; Infradiaphragmatic (20%), where blood drains into portal ...
Part of the left common cardinal vein persists after birth to form the coronary sinus. Figure obtained by combining several ... The common cardinal veins, also known as the ducts of Cuvier, are veins that drain into the sinus venosus during prenatal ...
... and ends in the coronary sinus near its right extremity. The middle cardiac vein has a constant location on the surface of the ... Coronary Sinus Lead Implantation", Clinical Cardiac Pacing, Defibrillation and Resynchronization Therapy (Fifth Edition), ...
The right atrium receives deoxygenated blood through coronary sinus and two large veins called venae cavae. The inferior vena ...
Right ventricular access is direct, while left ventricular access is conferred via the coronary sinus (CS). CRT defibrillators ...
... contain a sinus called an aortic sinus or sinus of Valsalva. In two of these cusps, the origin of the coronary arteries are ... They may be called the left coronary, right coronary and non-coronary cusp. Some sources also advocate they be named as a left ... It is these two sinuses that contain the origin of the coronary arteries. In the congenital disease known as transposition of ... Anatomists have traditionally named them the left posterior (origin of left coronary), anterior (origin of the right coronary) ...
Apart from Bachmann's bundle these are the anterior interatrial septum, posterior interatrial septum, and the coronary sinus. ... The concentration of converging conduction tracts near the coronary sinus results in considerable automaticity activity ... converging in the region near the coronary sinus. Atrial automaticity foci are within the atrial conduction system. ... James, Thomas N. (1 October 1963). "The connecting pathways between the sinus node and A-V node and between the right and the ...
The heart also has a coronary sinus valve, and an inferior vena cava valve, not discussed here. The heart valves and the ... The Aortic Valve and Aortic Sinuses" Curtis, M. J. (1992-07-01). "The Heart and Cardiovascular System". Cardiovascular Research ...
September 2004). "Persistent left superior vena cava draining into the coronary sinus: report of 10 cases and literature review ... vein does not develop fully and the left upper limb and head and neck drain into the right atrium via the coronary sinus. In ...
The cannula is placed in this incision, passed through the tricuspid valve, and into the coronary sinus. The cardiopledgia ... by way of the coronary sinus). These delivery methods are referred to antegrade and retrograde, respectively. Cardiopledgia ... It is delivered via a cannula to the opening of the coronary arteries (usually by way of the aortic root) and/or to the cardiac ... Coronary artery bypass surgery Cardiac valve repair and/or replacement (aortic valve, mitral valve, tricuspid valve, pulmonic ...
The small cardiac vein may drain to the coronary sinus, right atrium, middle cardiac vein, or be absent. This article ... The small cardiac vein, also known as the right coronary vein, is a coronary vein that drains the right atrium and right ... and opens into the right extremity of the coronary sinus. The small cardiac vein receives blood from the posterior portion of ... The small cardiac vein runs in the coronary sulcus between the right atrium and right ventricle, ...
It seems that it moves in a radial way, but Bachmann's bundle and coronary sinus muscle play a role in conduction between the ... 1998). "Electrical Conduction Between the Right Atrium and the Left Atrium via the Musculature of the Coronary Sinus". ... Blood is flowing into the right atrium from the superior and inferior venae cavae and the coronary sinus. Blood flows into the ... inferior vena cava and from the coronary sinus and pump it, through the tricuspid valve, via the right ventricle, through the ...
A small amount of blood from the coronary circulation also drains into the right atrium via the coronary sinus, which is ... These are the left main coronary artery and the right coronary artery. The left main coronary artery splits shortly after ... The coronary sinus is a large vein that drains into the right atrium, and receives most of the venous drainage of the heart. It ... Additionally, the coronary sinus returns deoxygenated blood from the myocardium to the right atrium. The blood collects in the ...
Persistent left superior vena cava opening directly into right atrium and mistaken for coronary sinus during biventricular ... "Persistent left superior vena cava opening directly into right atrium and mistaken for coronary sinus during biventricular ... "Mammary coronary artery anastomosis without cardiopulmonary bypass through minithoracotomy: one year clinical experience" (PDF ... pacemaker implantation, Mammary coronary artery anastomosis without cardiopulmonary bypass through minithoracotomy: one year ...
The tendon of Todaro forms the hypotenuse of the triangle and the base is formed by the coronary sinus orifice and the ... This triangle ends at the site of the coronary sinus orifice inferiorly and, continuous with the sub-Eustachian pouch. ... which its boundaries are the coronary sinus orifice, tendon of Todaro, and septal leaflet of the right atrioventricular valve. ...
Below the opening of the orifice of the coronary sinus they fuse to form a triangular thickening - the spina vestibuli. It is ...
The Beck II operation came about in the late 1940s, which created a vein graft between the aorta and coronary sinus. In 1947, ...
Coronary sinus. *Great cardiac (Left marginal). *Posterior of the left ventricle. *Oblique of the left atrium (Ligament of the ... And then, it ends in the upper and posterior part of the sinus venarum of the right atrium, at the upper right front portion of ...
sinus. Sinusotomy. larynx. Laryngoscopy. Laryngectomy. Laryngotomy Thyrotomy. Laryngotracheal reconstruction. Lower RT. trachea ...
Diagram showing the portion of normal sinus rhythm during which commotio cordis is a risk ... such as in coronary artery insufficiency.[6] ...
Testing for coronary artery disease or carotid artery disease is of unclear benefit.[18] While PAD is a risk factor for ... Aneurysm of sinus of Valsalva. *Aortic dissection. *Aortic rupture. *Coronary artery aneurysm ... Smokers are 2-3 times more likely to have lower extremity PAD than coronary artery disease.[35] Greater than 80%-90% of ... Those with known atherosclerotic coronary, carotid, or renal artery disease. *All people with a Framingham risk score of 10%-20 ...
瓦耳萨耳氏窦动脉瘤(英语:Aneurysm of sinus of Valsalva) ... Coronary artery aneurysm(英语:Coronary artery aneurysm). *Coronary artery dissection(英语:Coronary artery dissection) ... 腦竇血栓形成(英语:Cerebral venous sinus thrombosis) ... Sinus bradycardia(英语:Sinus bradycardia). *Sick sinus syndrome(英 ... Coronary thrombosis(英语:Coronary thrombosis). *Coronary vasospasm(
This may be caused by a slowed signal from the sinus node (sinus bradycardia), by a pause in the normal activity of the sinus ... The most common cause of sudden death in the US is coronary artery disease specifically because of poor oxygenation of the ... Normal sinus rhythm, with solid black arrows pointing to normal P waves representative of normal sinus node function, followed ... This is mediated by the sympathetic nervous system on the sinus node and called sinus tachycardia. Other conditions that ...
The most common cause of sudden death in the US is coronary artery disease. Approximately 300,000 people die suddenly of this ... sinus node) धाःगु थासं निर्धारित याइ। म्ह तच्वलं संकिबिलय्, दसु व्यायाम याइबिलय् नुगःया साइनस नोदं थःगु वैद्युतीय ज्या तच्वयेकी ... थ्व कथं छुं कारणवश नुगःया गति तःच्वैगु अवस्थायात साइनस त्याकिकार्दिया(sinus tachycardia) धाइ। अरिदमिया धाःगु अवस्थाय् असाधारण ...
... a rough triangle with points at the coronary sinus, the tendon of Todaro, and the tricuspid valve).[4] ... In this case the right bundle branch block was present during tachycardia and during normal sinus rhythm. ...
The AV node lies at the lower back section of the interatrial septum near the opening of the coronary sinus, and conducts the ... the coronary sinus, and the membranous part of the interatrial septum. The blood supply of the AV node is from the ... The AV node lies at the lower back section of the interatrial septum near the opening of the coronary sinus, which conducts the ... The origin of this artery is most commonly (80-90% of hearts) a branch of the right coronary artery, with the remainder ...
427.8 Other specified cardiac dysrhythmias 427.81 Sick sinus syndrome 427.89 Sinus bradycardia, NOS 427.9 Cardiac dysrhythmia ... 414.11 Aneurysm of coronary vessels 414.12 Dissection of coronary artery 414.8 Ischemic heart disease, chronic, other 414.9 ... Angina pectoris 413.0 Angina decubitus 413.1 Prinzmetal angina 414 Other forms of chronic ischemic heart disease 414.0 Coronary ... Other acute and subacute forms of ischemic heart disease 411.0 Postmyocardial infarction syndrome 411.1 Intermediate coronary ...
Additionally, the nasolacrimal duct and sinuses are connected to the nasal passage. The horse's respiratory system not only ... below Coronet or coronary band: the ring of soft tissue just above the horny hoof that blends into the skin of the leg Crest: ...
... a triangular thickening near the coronary sinus Cingulina spina, a species of sea snail, a marine gastropod mollusk in the ...
... syndactyly jejunal atresia Coronaro-cardiac fistula Coronary arteries congenital malformation Coronary artery aneurysm Coronary ... deafness Caudal duplication Caudal regression syndrome Causalgia Cavernous hemangioma Cavernous lymphangioma Cavernous sinus ...
Angina Acute coronary syndrome Anomic aphasia Aortic dissection Aortic regurgitation Aortic stenosis Apoplexy Apraxia ... Heart block Inappropriate sinus tachycardia Jervell and Lange-Nielsen syndrome Junctional escape beat Junctional rhythm Left ... Ischemic heart diseases Angina pectoris Acute coronary syndrome Acute myocardial infarction See also Category:Valvular heart ...
... and coronary sinus (for the left ventricle stimulation).[citation needed] Echocardiography is a non-invasive method to evaluate ... Coronary angiography is a diagnostic procedure that allows visualization of the coronary vessels. Fluoroscopy is used to ... A common example of cardiac catheterization is coronary catheterization that involves catheterization of the coronary arteries ... Acute coronary syndromes: ST elevation MI (STEMI), non-ST Elevation MI (NSTEMI), and unstable angina Evaluation of coronary ...
It is contraindicated if there has been a past history of angioedema; heart conduction disorders (e.g. sick sinus syndrome, ... second- or third-degree heart block); bradycardia; severe heart failure or coronary artery disease. Also: Raynaud's syndrome, ...
Arrhythmias: Sinus tachycardia is the most common abnormal heart rhythm associated with a pheochromocytoma and is experienced ... Norepinephrine (a catecholamine) is hypothesized to result in damaged cardiac tissue by inhibiting coronary blood flow and ... in the coronary vessels. Patients with pheochromocytoma present with myocardial infarctions despite an overall lack of plaque ...
It was initially thought that exhaled NO derived mostly from the sinuses, which contain high levels of NO. It has subsequently ... In 1987, experiments with coronary arteries showed that nitric oxide was the long sought endothelium-derived relaxing factor. ... been shown that the lower airways contribute most of the exhaled NO, and that contamination from the sinuses is minimal.[ ...
The location of the left coronary sulcus is marked by the circumflex branch of left coronary artery and coronary sinus. The ... the coronary sulcus contains the coronary sinus. In relation to the rib cage, the coronary sulcus spans from the medial side of ... There are two coronary sulci in the heart, including left and right coronary sulci. The left coronary sulcus originates ... The coronary sulcus (also called coronary groove, auriculoventricular groove, atrioventricular groove, AV groove) is a groove ...
These are avoided by the more radical "ablate and pace" treatment (see below). The mainstay of maintaining sinus rhythm is the ... results of a randomized controlled pilot study of left atrial appendage occlusion during coronary bypass surgery in patients at ... In patients with AF where rate control drugs are ineffective and it is not possible to restore sinus rhythm using cardioversion ... As with other procedures off-bypass, the surgeon can confirm that AF corrects to normal sinus rhythm during the procedure. ...
2007). "Donepezil for cognitive decline following coronary artery bypass surgery: a pilot randomized controlled trial". ... severe cardiac arrhythmia and sick sinus syndrome. People with peptic ulcer disease or taking NSAIDs should use with caution ... post-coronary artery bypass surgery cognitive impairment, cognitive impairment associated with multiple sclerosis, CADASIL ...
Diagnostic coronary angiography Right and left heart catheterization Coronary angioplasty with stent implantation Implantation ... Surgical correction of extremely rare conditions (like aorto-ventricular tunnel and ruptured sinus of Valsalva) have also been ... Some of the publications done by the doctors of MIC include the following: Right Ventricular Dysfunction after Coronary Artery ... The types of surgeries offered include: • Coronary artery bypass surgery. • Valve replacements and repair • Surgery for aortic ...
Harnek, J (Jan 2011). "Transcatheter implantation of the MONARC coronary sinus device for mitral regurgitation: 1-year results ... PCI/Coronary angioplasty) the use of angioplasty for the treatment of obstruction of coronary arteries as a result of coronary ... "Percutaneous Coronary Intervention Versus Optimal Medical Therapy in Stable Coronary Artery Disease: A Systematic Review and ... Percutaneous coronary intervention in addition to optimal medical therapy for stabile coronary artery disease - a systematic ...
... corniculate cornu corona corona radiata coronal plane coronal suture coronal view coronary coronary arteries coronary sinus ... ciliary nerves shoulder shoulder blade shin sight sigmoid colon sigmoid sinus Simian crease simian shelf sinoatrial node sinus ... sinus carotid siphon carpus cartilage caruncle catheter cauda cauda equina caudal caudate caudate nucleus cava cavernous sinus ... petrosal sinus inferior pharyngeal constrictor muscle inferior pubic ramus inferior rectus muscle inferior sagittal sinus ...
Many conditions can cause third-degree heart block, but the most common cause is coronary ischemia. Progressive degeneration of ... a sinus rhythm) represent the first rhythm. The QRS complexes with a regular R-to-R interval represent the second rhythm. The ... dual-chamber pacemakers may reduce the incidence of complications in people with sick sinus syndrome and atrioventricular block ...
In men, coronary disease is more frequent, while in women, high systolic blood pressure and valvular heart disease are more ... An important theory is that the regular impulses produced by the sinus node for a normal heartbeat are overwhelmed by rapid ... CA is a form of rhythm control that restores normal sinus rhythm and reduces AF-associated symptoms more reliably than ... Prolonged episodes of atrial fibrillation have been shown to correlate with prolongation of the sinus node recovery time; this ...
August 2008 PICTORIAL MEDICINE Unroofed coronary sinus defect OH Kwok, John KF Chan Cardiology Centre, Hong Kong Sanatorium and ...
Pressure-controlled intermittent coronary sinus occlusion (PICSO), known to induce angiogenetic and vasoactive molecules as ... Conclusions: Here, we show for the first time that PICSO, a trans-coronary sinus catheter intervention, is associated with an ... Acute molecular effects of pressure-controlled intermittent coronary sinus occlusion in patients with advanced heart failure. ... Acute molecular effects of pressure-controlled intermittent coronary sinus occlusion in patients with advanced heart failure. ...
A growing number of patients, particularly those with advanced, chronic coronary artery disease, experience symptoms of angina ... coronary in-flow redistribution and approaches to chronic total occlusion). The contemporary management of refractory angina ... Patients with chronic coronary artery disease can develop angina that is refractory to standard medical treatment. Henry and ... Coronary Sinus Reducer for the Treatment of Chronic Refractory Angina: Will This Challenge the Treatment of Coronary Chronic ...
Weiss, C., Cappato, R., Willems, S., Meinertz, T., & Kuck, K. H. (1999). Prospective evaluation of the coronary sinus anatomy ... Weiss, C, Cappato, R, Willems, S, Meinertz, T & Kuck, KH 1999, Prospective evaluation of the coronary sinus anatomy in ... However, in general the measurements of the coronary sinus ostium did not significantly differ in patients with AVNRT compared ... However, in general the measurements of the coronary sinus ostium did not significantly differ in patients with AVNRT compared ...
Coronary sinus (CS) lead placement is being used more frequently to avoid valvular dysfunction. We report an unusual case in ... Coronary sinus (CS) lead placement is being used more frequently to avoid valvular dysfunction. We report an unusual case in ... Coronary sinus (CS) lead placement is being used more frequently to avoid valvular dysfunction. We report an unusual case in ... Coronary sinus (CS) lead placement is being used more frequently to avoid valvular dysfunction. We report an unusual case in ...
Coronary sinus devices are implanted percutaneously to treat mitral regurgitation. Experiences with two new devices, details ... Percutaneous Repair of Mitral Regurgitation Using Coronary Sinus Devices. Expert: John G. Webb, M.D., F.A.C.C.; Interviewer: ... Cite this: Percutaneous Repair of Mitral Regurgitation Using Coronary Sinus Devices - Medscape - Sep 06, 2007. ...
Imaging coronary sinus in modified bicaval view. Annals of Cardiac Anaesthesia. 2015 Jul; 18(3): 430-432. ...
We explored words as left ventricular lead stabilization, lead stenting, coronary sinus stent, coronary sinus angioplasty. ... Left ventricular lead stabilization in coronary sinus via stent case report and literature review. Author: Osama Abdelkarim ... We present a left ventricular lead stabilization in the coronary sinus via a drug-eluting stent in addition to the literature ... Results: A total of 14 studies spotted left ventricular lead stenting in the coronary sinus during biventricular pacing between ...
Coronary sinus. Please sign up for the course before starting the lesson. ...
2008-11-21 Meta-Analysis on the salvage potential of coronary sinus interventions published. A Meta-Analysis published in the ... June issue of the JCTVS shows the salvage potential of coronary sinus interventions. Furthermore Harold Lazar published in the ...
Coronary Sinus Pacing in Patients after Tricuspid Valve Surgery with Complete Atrioventricular Block. PubMed, SCI, Scopus, ESCI ... Coronary Sinus Pacing in Patients after Tricuspid Valve Surgery with Complete Atrioventricular Block. Author(s): Anna Rydlewska ... Fluoroscopy Guided Minimally Invasive Swine Model of Myocardial Infarction by Left Coronary Artery Occlusion for Regenerative ...
Zhelnov P. A critical appraisal of Stanak M, Rothschedl E, Szymanski P. Coronary Sinus Reducing Stent for the Treatment of ...
CSO = coronary sinus os; IVC = inferior vena cava; RAA = right atrial appendage; TV = tricuspid valve annulus. View Media ... CSO = coronary sinus os; IVC = inferior vena cava; RAA = right atrial appendage; TV = tricuspid valve annulus. ... The isthmus of tissue responsible for atrial flutter is seen anterior to the coronary sinus (CS) orifice. The eustachian ridge ... The isthmus of tissue responsible for atrial flutter is seen anterior to the coronary sinus (CS) orifice. The eustachian ridge ...
Patients with anterior STEMI treated with primary percutaneous coronary intervention (pPCI) were enrolled. Pre-stenting IMR was ... guided therapy with pressure-controlled intermittent coronary sinus occlusion (PICSO) in anterior ST-elevation myocardial ... Index of microcirculatory resistance-guided therapy with pressure-controlled intermittent coronary sinus occlusion improves ... Index of microcirculatory resistance-guided therapy with pressure-controlled intermittent coronary sinus occlusion improves ...
Angiographic anatomy of the coronary sinus venous system in adult Kashmiri population ... Tori G. Radiological visualization of the coronary sinus and coronary veins. Acta Radiol. 1952;36: 405-15. ... coronary sinus and its tributaries in adult Kashmiri population and provide anatomical basis for cannulation of coronary sinus ... Results: The coronary sinus was formed by the union of GCV+LMV in 93.3% of subjects and by the union of GCV+PLV in 6.7% of ...
Snellen HA, Dekker A. Anomalous pulmonary venous drainage in relation to left superior vena cava and coronary sinus. Am Heart J ... Left pulmonary veins draining into persistent left superior caval vein in presence of unroofed coronary sinus. ... anomalous pulmonary venous drainage into a persistent left superior caval vein in the presence of an unroofed coronary sinus ... Veno-venous bridges: the forerunners of the sinus venosus defect. Cardiol Young. 2011;21(6):623-630. ...
What to know about the coronary sinus. What is the coronary sinus? Read on to learn more about this important blood vessel in ... "The risks begins to increase for coronary heart disease, heart failure and stroke within 1 year after giving birth, but it is ...
Dive into the research topics of Unusual coronary sinus tumor in a pregnant woman: A case report with literature review. ... Unusual coronary sinus tumor in a pregnant woman: A case report with literature review. ...
CSO = coronary sinus os; IVC = inferior vena cava; RAA = right atrial appendage; TV = tricuspid valve annulus. ... The isthmus of tissue responsible for atrial flutter is seen anterior to the coronary sinus (CS) orifice. The eustachian ridge ... 17, 18, 19, 20] is also effective, converting recent-onset atrial flutter to sinus rhythm in 63% of patients with a single ... Pause-dependent torsade de pointes can occur after conversion to sinus rhythm. The risk of proarrhythmia is probably greatest ...
Coronary sinus flow. Images of the coronary sinus were acquired at rest and during adenosine stress for quantification of ... Sinus coronary flow. Global myocardial perfusion (ml/min/g) was also quantified as CSF (ml/min)/LVM (g)20. LVM for CSF ... Bias according to Bland-Altman was used to compare qFPP and sinus coronary flow and for interobserver analysis. Univariable ... "Framingham risk score for hard coronary heart disease"15 and the "systematic coronary risk evaluation (SCORE)"16 were used ...
Anomalous coronary arteries originating from the opposite sinus of Valsalva (ACAOS) is one of the most clinically relevant ... Anomalous coronary artery from the opposite sinus (ACAOS): technical challenges during percutaneous coronary intervention. ... Anomalous coronary arteries originating from the opposite sinus of Valsalva (ACAOS) is one of the most clinically relevant ... Background: The anomalous coronary arteries originating from the opposite sinus of Valsalva (ACAOS) constitutes one of the most ...
Antianginal effect of coronary sinus reductionConcept of coronary sinus reduction. In the 1950s, in the pre-coronary ... The coronary sinus reducer: a device-based therapy for refractory Angina]. The coronary sinus reducer: a device-based therapy ... and those intended to reduce the diameter of the coronary sinus.40 Of these efforts, only ligation of the coronary sinus to ... as venous drainage systems other than the coronary sinus could diminish the benefit of coronary sinus reduction. Other factors ...
Coronary sinus dissection. 0.3 (1/320). 2.0 (213/10768). 0.023. 0.16 (0.02-1.11). ... Coronary venogram performed. 93 (298/319). 91 (9338/10210). 0.22. Venogram performed with occlusion. 61 (183/298). 47 (4303/ ... BMI = body mass index; BNP = brain-type natriuretic peptide; CABG = coronary artery bypass grafting; HF = heart failure; ICD = ... 2017 ESC focused update on dual antiplatelet therapy in coronary artery disease developed in collaboration with EACTS: The Task ...
... coronary sinus is largest). o Great cardiac vein, middle cardiac vein, and small cardiac vein drain into coronary sinus. ... Receives systemic oxygen poor blood via three veins: superior vena cava, inferior vena cava, and coronary sinus - Right auricle ... Right and left coronary arteries branch off of aorta to serve heart - Left coronary artery branches into anterior ... Coronary artery disease. Definition. Coronary Artery Disease; arteries supplying the heart are blocked or narrowed (consequence ...
SVC = superior vena cava, IVC = inferior vena cava, TV = tricuspid valve, CS = coronary sinus. (B) Time-averaged velocity ...
Are you studying anatomy? Our fun yet informative Gross Anatomy Quiz Questions And Answers can help you prepare for your anatomy test in the b...
  • Authors analysed the levophase angiogram of 150 subjects undergoing routine coronary angiography in the right anterior oblique and left anterior oblique view with the necessary caudal or cranial angulations. (msjonline.org)
  • The study group consisted of symptomatic patients with ACAOS who underwent catheter coronary angiography in at Rovigo General Hospital, Rovigo, Italy between 1 January 2003 and 1 January 2018. (touchcardio.com)
  • Patients were assessed with left and right coronary angiography before and after the procedure. (thecardiologyadvisor.com)
  • Coronary angiography examination revealed a functional mi- problem. (who.int)
  • Background: Coronary artery ectasia (CAE) is a well-recognized but relatively uncommon finding encountered during diagnostic coronary angiography. (bvsalud.org)
  • Patients and methods: This prospective observational study included 50 consecutive patients came to the Department of Cardiology, Al-Azhar University Hospital, New Damietta for coronary angiography. (bvsalud.org)
  • We present a 61-year-old male with a right atrial angiosarcoma that was detected on coronary angiography. (bvsalud.org)
  • Pressure-controlled intermittent coronary sinus occlusion (PICSO), known to induce angiogenetic and vasoactive molecules as well as to reduce regional ischemia, may activate endogenous regenerative processes in failing myocardium. (eur.nl)
  • Pressure-controlled Intermittent Coronary Sinus Occlusion study (OxAMI-PICSO study). (ox.ac.uk)
  • AIMS: The Oxford Acute Myocardial Infarction PICSO (OxAMI-PICSO) study aimed to assess the efficacy of index of microcirculatory resistance (IMR)-guided therapy with pressure-controlled intermittent coronary sinus occlusion (PICSO) in anterior ST-elevation myocardial infarction (STEMI). (ox.ac.uk)
  • Conclusions: Here, we show for the first time that PICSO, a trans-coronary sinus catheter intervention, is associated with an increase in morphogens secreted into cardiac veins, normally present during cardiac development, and a significant induction of cell proliferation. (eur.nl)
  • Furthermore, we reviewed the literature to address all studies and reports of left ventricular lead stabilization via coronary stent in the coronary sinus during cardiac resynchronization therapy implantation. (journalcra.com)
  • Conclusion: During cardiac synchronization therapy implantation, left ventricular lead retention in the coronary sinus by stent is feasible and effective. (journalcra.com)
  • The advent of advanced invasive and interventional cardiac treatment and management tools for common disorders like heart failure has made understanding of coronary sinus anatomy necessary. (msjonline.org)
  • Grzybiak M. Morphology of the coronary sinus and contemporary cardiac electrophysiology. (msjonline.org)
  • Cappato R, Schlüter M, Weiss C, Willems S, Meinertz T, Kuck K. Mapping of the coronary sinus and great cardiac vein using a 2‐french electrode catheter and a right femoral approach. (msjonline.org)
  • 1 Sudden cardiac death has been related to myocardial bridges, ectopic origin of the pulmonary artery, a single coronary artery and ACAOS with an intramural course (ACAOS-IM), especially in young athletes. (touchcardio.com)
  • He has performed all types of adult cardiac surgeries, including coronary artery bypass grafting and artificial heart implantation. (yalemedicine.org)
  • Coronary sinus, normally located between the LEFT ATRIUM and LEFT VENTRICLE on the posterior surface of the heart, can serve as an anatomical reference for cardiac procedures. (bvsalud.org)
  • The autopsy revealed cardiomegaly, severe three vessel coronary artery atherosclerosis with diffuse calcification and greater than 75% luminal narrowing, prior stenting of the two coronary arteries, pulmonary congestion and edema, multiple organ failure, and clinical history of cardiac arrest (on November 5, 2014). (cdc.gov)
  • Enter our star and director, cardiothoracic surgeon, Dr. Rodolfo Bonilla, with over 25 years of experience performing thousands of cardiac procedures, from angioplasties to CABG, or coronary artery bypass grafts. (centralamericasurgery.com)
  • Background: The anomalous coronary arteries originating from the opposite sinus of Valsalva (ACAOS) constitutes one of the most clinically relevant coronary artery anomalies in adults. (touchcardio.com)
  • A rare coronary artery anomaly: origin of all three coronary arteries from the right sinus of valsalva. (nih.gov)
  • Cannulation was found to be selective in 12.0% and 31.7% for left and right coronary arteries, respectively. (thecardiologyadvisor.com)
  • It is commonly defined as in appropriate dilation of the coronary arteries exceeding the largest diameter of an adjacent normal vessel more than 1.5-fold. (bvsalud.org)
  • A greater TAV-sinus of Valsalva relation or high TAV implantation depth exacerbated the failure rate. (thecardiologyadvisor.com)
  • Results: The present study shows that there was a good correlation between 3D-TTE and aortography at the levels of aortic annulus, sinuses of Valsalva, sinotubular junction (r =0.98,0.95,0.98) but a rough correlation between 2D-TTE and aortography at these levels (r =0.49,0.48,0.46). (bvsalud.org)
  • A growing number of patients, particularly those with advanced, chronic coronary artery disease, experience symptoms of angina that are refractory to treatment with β-blockers, calcium-channel blockers, and long-acting nitrates, despite revascularization. (nature.com)
  • The risks begins to increase for coronary heart disease , heart failure and stroke within 1 year after giving birth, but it is highest between 1-10 years after giving birth," she continues. (medicalnewstoday.com)
  • For objectively calculating the ten year risk of fatal CVD of study participants, the risk scoring systems "Framingham risk score for hard coronary heart disease" 15 and the "systematic coronary risk evaluation (SCORE)" 16 were used including the variables sex, age, systolic blood pressure, total cholesterol and smoking status. (swvrc.org)
  • The Portuguese Journal of Cardiology, the official journal of the Portuguese Society of Cardiology, was founded in 1982 with the aim of keeping Portuguese cardiologists informed through the publication of scientific articles on areas such as arrhythmology and electrophysiology, cardiovascular surgery, intensive care, coronary artery disease, cardiovascular imaging, hypertension, heart failure and cardiovascular prevention. (revportcardiol.org)
  • It is increasing in frequency, due to the success of current medical and interventional therapies in improving the prognosis of coronary artery disease. (revportcardiol.org)
  • Coronary heart disease , high blood pressure, and aortic and mitral valve diseases may occur with sick sinus syndrome. (medlineplus.gov)
  • Angiographic studies demonstrate that a reduction of the LDL level in patients with coronary artery disease could cause slowing of progression, stabilization, or even regression of coronary artery lesions. (medscape.com)
  • Some triglyceride-rich lipoproteins, including partially degraded very LDL levels, are believed to be independent risk factors for coronary artery disease. (medscape.com)
  • Patients with established coronary disease and low HDL cholesterol levels are at high risk for recurrent events and should be targeted for aggressive nonpharmacological (ie, dietary modification, weight loss, physical exercise) and pharmacological treatment. (medscape.com)
  • Past medical history included hypertension, coronary artery disease, and noninsulin-dependent diabetes mellitus. (cdc.gov)
  • She had no risk factors for coronary artery disease in her medical history but it was learned that she had undergone a mitral valve replacement 2 years before because of rheumatic mitral stenosis and that no international normalized ratio (INR) analysis had been done in the last 6 months. (who.int)
  • Patients with severe hypertension or coronary artery disease. (eipico.com.eg)
  • As with other sympathomimetic agents CETAL SINUS should be used with caution in patients with hypertension, heart disease, diabetes, hyperthyroidism, elevated intraocular pressure and prostatic enlargement. (eipico.com.eg)
  • The death certificate, completed by the Forensic Supervisor of the County Medical Examiner, listed ischemic cardiomyopathy as the immediate cause of death with severe coronary artery disease as the underlying cause. (cdc.gov)
  • It's used by eastern practitioners to help with high blood pressure, high cholesterol, and coronary artery disease. (kitchenofyouth.com)
  • Do not take the drug without consulting your doctor about your actual high blood pressure, planned major surgery and conditions such as high blood pressure, diabetes, high cholesterol or smoking, which may increase possibility of coronary artery disease and atherosclerosis. (advantagelaserclinic.com)
  • Coronary artery disease in fire fighters is due to a combination of personal and workplace factors. (cdc.gov)
  • Optimisation of individual cardiovascular risk assessment in a German coronary artery disease cohort using a commercial test for genetic polymorphisms - a pilot study. (cdc.gov)
  • The role of methylenetetrahydrofolate reductase C677T gene polymorphism as a risk factor for coronary artery disease: a cross-sectional study in the Sidoarjo Regional General Hospital. (cdc.gov)
  • The prevalence of common CVD diagnoses (hypertension, coronary heart disease, atrial fibrillation and flutter, heart failure, ischemic stroke, and venous thromboembolism) was evaluated as a function of the patients' body height stratified by age and sex. (biomedcentral.com)
  • In both sexes, the prevalence of hypertension, coronary heart disease, heart failure, and ischemic stroke was higher among patients of smaller body height. (biomedcentral.com)
  • In age- and BMI-adjusted logistic regression analyses, an increased body height was negatively associated with coronary heart disease (OR = 0.91 in women and OR = 0.87 in men per 10-cm increase in height) and strongly positively associated with atrial fibrillation (OR = 1.25 in women and men) and venous thromboembolism (OR = 1.23 in women and OR = 1.24 in men). (biomedcentral.com)
  • The Emerging Risk Factors Collaboration (ERFC) recently showed that the risk of dying from coronary heart disease (CHD) decreased by 6% for every 6.5 cm of adult body height in a cohort of over 1 million participants [ 7 ]. (biomedcentral.com)
  • subjects with coronary artery disease. (who.int)
  • Radiofrequency catheter ablation of left lateral accessory pathways via the coronary sinus. (msjonline.org)
  • Catheter ablation of pulmonary veins or left atrium have been proved to be superior to anti-arrhythmic therapy in reducing AF recurrence and maintaining sinus rhythm ( 3 , 4 ). (medsci.org)
  • TVAR was considered selective when the catheter was completely engaged, semiselective when the catheter was in front of the coronary ostium, and unsuccessful when it was impossible to obtain selective or semiselective engagement. (thecardiologyadvisor.com)
  • Pause-dependent torsade de pointes can occur after conversion to sinus rhythm. (medscape.com)
  • Considering anticoagulation in this patient population (at least until sinus rhythm is maintained) is a wise decision. (medscape.com)
  • Patients need to maintain a therapeutic international normalized ratio (INR) for 3 weeks before conversion and for at least 4 weeks after conversion to sinus rhythm. (medscape.com)
  • Holter or longer term rhythm monitors are effective tools for diagnosing sick sinus syndrome. (medlineplus.gov)
  • Electrocardiography was in sinus rhythm. (who.int)
  • The FF regained a sinus rhythm but his heart rhythm reverted to ventricular fibrillation again as care was being transferred to ED staff. (cdc.gov)
  • Sinus rhythm, nearly tachycardia. (blogspot.com)
  • 24 week, single center, prospective, randomized, double-blind treatment study of valsartan (80 mg/bid, increased to 160 mg/bid) or placebo in addition to other general medical therapy in patients with persistent atrial fibrillation (AF) undergoing electrical cardioversion to restore normal sinus rhythm (SR). (druglib.com)
  • To evaluate the efficacy of valsartan, added to standard AF therapy, to maintain sinus rhythm and extend the interval to first AF recurrence after cardioversion. (druglib.com)
  • Prevalence of left atrial anatomical abnormalities in patients with recurrent atrial fibrillation compared with patients in sinus rhythm using multi-slice CT. (chvd-journal.com)
  • Investigation of Lipid level management using coronary UltraSound To assess Reduction of Atherosclerosis by CETP inhibition and HDL Elevation (ILLUSTRATE) was a randomized study that looked at the effect of torcetrapib in 1188 patients with CAD who underwent intravascular ultrasonography at baseline. (medscape.com)
  • The most common causes are hypokalemia, hyperthyroidism, coronary atherosclerosis. (arrhythmia.center)
  • Coronary cannulation failures following transcatheter aortic valve replacement (TAVR) were found to be higher in patients receiving Evolut TAVs, according to a study published in the Journal of American College of Cardiology: Cardiovascular Interventions . (thecardiologyadvisor.com)
  • Objective: The aim of this study was to compare 2D-TTEand 3D-TTE measurements of the aortic root diameter in patients with coronary artery ectasia to assess the presence of aortic root dilatation. (bvsalud.org)
  • Increase prevalence of aortic root dilatation and ascending aorta dilatation in patients with coronary artery ectasia. (bvsalud.org)
  • Veno-venous bridges: the forerunners of the sinus venosus defect. (dataemia.com)
  • The functional anatomy of the human coronary sinus. (msjonline.org)
  • Method for the continuous measurement of pO2 in the human coronary sinus]. (bvsalud.org)
  • Unroofed coronary sinus (UCS) is a rare atrial septal defect (ASD) that results in an abnormal communication between the coronary sinus and the left atrium. (medscape.com)
  • Does Preoperative Multislice Computed Tomography Predict Operative Times in Total Endoscopic Coronary Artery Bypass Grafting? (hsforum.com)
  • Microplegia versus Cardioplexol® in Coronary Artery Bypass Surgery with Minimal Extracorporeal Circulation: Comparison of Two Cardioplegia Concepts. (unibas.ch)
  • Analysis of Myocardial Ischemia Parameters after Coronary Artery Bypass Grafting with Minimal Extracorporeal Circulation and a Novel Microplegia versus Off-Pump Coronary Artery Bypass Grafting. (unibas.ch)
  • External nitinol meshing of venous coronary artery bypass grafts: is safety of application really in doubt? (unibas.ch)
  • In this paper, we report a rare case of myocardial infarction, which occurred as a result of a coronary embolism in a patient with prosthetic mitral valve thrombosis. (who.int)
  • Cerebral sinuses thrombosis prior to the diagnosis of acute lymphoblastic leukemia in a child: A case report. (cdc.gov)
  • Gerber TC, Kantor B, Keelan PC, Hayes DL, Schwartz RS, Holmes DR. The coronary venous System: an alternate portal to the myocardium for diagnostic and therapeutic procedures in invasive cardiology. (msjonline.org)
  • Background: Previous retrospective studies could find a predominant incidence of coronary sinus (CS) anomalies in patients with accessory pathways and a characteristic anatomy of the CS ostium in patients with atrioventricular nodal reentrant tachycardias (AVNRT). (elsevier.com)
  • Knowledge of the coronary sinus venous anatomy is an important factor because of its relevance in electrophysiological procedures such as chronic resynchronisation therapy, mapping and ablation of arrhythmias. (msjonline.org)
  • The aim was to study the angiographic anatomy of coronary sinus and its tributaries in adult Kashmiri population and provide anatomical basis for cannulation of coronary sinus and its tributaries. (msjonline.org)
  • Anatomy of the valve of the coronary sinus (Thebesian valve). (msjonline.org)
  • In such cases, the development of the ventricular and sinus reciprocal tachycardia is not so frequent. (arrhythmia.center)
  • HN - 2008 BX - Granulosa Cells, Cumulus MH - Coronary Sinus UI - D054326 MN - A07.231.908.194.500 MS - A short vein that collects about two thirds of the venous blood from the MYOCARDIUM and drains into the RIGHT ATRIUM. (bvsalud.org)
  • Although pseudoephedrine has virtually no pressor effects in normotensive patients, CETAL SINUS should be used with caution in patients suffering from mild to moderate hypertension. (eipico.com.eg)
  • We explored words as left ventricular lead stabilization, lead stenting, coronary sinus stent, coronary sinus angioplasty. (journalcra.com)
  • On the editorial of U. Gleichmann and P. Lichtlen: Percutaneous transluminal coronary angioplasty: qualifications of the surgeon and patient security, logistical considerations]. (bvsalud.org)
  • We did not perform acute coronary syndrome, coronary elevation myocardial infarction, whereas angioplasty because the obstruction embolism should be kept in mind in the rest present with non-ST elevation was in the distal portion of the vessel those with prosthetic valves even in the myocardial infarction [8]. (who.int)
  • McLeod, CJ, Ammash, NM & Asirvatham, SJ 2011, ' Intercommissural lead placement into a right ventricular coronary sinus-utility of intracardiac echo guidance ', PACE - Pacing and Clinical Electrophysiology , vol. 34, no. 3, pp. e30-e32. (elsevier.com)
  • We present a left ventricular lead stabilization in the coronary sinus via a drug-eluting stent in addition to the literature review of this technique. (journalcra.com)
  • A VVI (ventricular ventricular inhibited) pacemaker had been implanted for treatment of sick sinus syndrome 9 years earlier. (cdc.gov)
  • endocarditis, atrial and ventricular mu- ing treatment of coronary embolism. (who.int)
  • coronary revascularization (PCI or CABG), unstable angina within 1 month of V1. (druglib.com)
  • Figure 4: Successful percutaneous coronary intervention for chronic total occlusion is associated with reduced angina frequency. (nature.com)
  • Cite this: Percutaneous Repair of Mitral Regurgitation Using Coronary Sinus Devices - Medscape - Sep 06, 2007. (medscape.com)
  • METHODS AND RESULTS: Patients with anterior STEMI treated with primary percutaneous coronary intervention (pPCI) were enrolled. (ox.ac.uk)
  • However, in general the measurements of the coronary sinus ostium did not significantly differ in patients with AVNRT compared with the control group. (elsevier.com)
  • New treatment principles are emerging in current practice, such as metabolic modulation, therapeutic angiogenesis, and novel interventional techniques (coronary in-flow redistribution and approaches to chronic total occlusion). (nature.com)
  • The data obtained from the study can be utilised by interventional cardiologist for cannulation of coronary sinus in Kashmiri population. (msjonline.org)
  • Coronary sinus (CS) lead placement is being used more frequently to avoid valvular dysfunction. (elsevier.com)
  • Clinical studies assessing the coronary sinus Reducer device in patients with refractory angina. (revportcardiol.org)
  • The primary focus of this review is the coronary sinus Reducer, supporting evidence for which, although scarce, is promising regarding safety and efficacy in improving anginal symptoms and quality of life. (revportcardiol.org)
  • Surgical correction of an atherosclerotic coronary artery aneurysm. (bvsalud.org)
  • Lead instability complicated the procedure until a drug-eluting stent anchored it in the posterolateral branch of the coronary sinus. (journalcra.com)
  • Stanak M, Rothschedl E, Szymanski P. Coronary Sinus Reducing Stent for the Treatment of Refractory Angina Pectoris: A Health Technology Assessment. (zheln.com)
  • Blood pressure gradient across the coronary circulation, calculated blood flow, vorticity magnitude, wall shear stress (WSS) and IM segment deformation were analysed by simulating exercise, before and after virtual stent implantation. (touchcardio.com)
  • 4. Indications: Anomalous coronary arterial stenosis when lesions clear to purulent discharge from the superior and inferior labial artery medially. (berea.edu)
  • The isthmus of tissue responsible for atrial flutter is seen anterior to the coronary sinus (CS) orifice. (medscape.com)
  • The chest pain of the patient was assessed to be typical of acute coronary syndrome. (who.int)
  • Sick sinus syndrome most often occurs in people older than age 50. (medlineplus.gov)
  • In children, heart surgery on the upper chambers is a common cause of sick sinus syndrome. (medlineplus.gov)
  • Sick sinus syndrome is uncommon, but not rare. (medlineplus.gov)
  • Sick sinus syndrome may cause symptoms of heart failure to start or get worse. (medlineplus.gov)
  • Sick sinus syndrome is diagnosed when the symptoms occur only during episodes of arrhythmia. (medlineplus.gov)
  • Sinus bradycardia occurs more often than the other types of the condition. (medlineplus.gov)
  • A total of 7.7% of cannulation attempts were unsuccessful (4.7% left coronary artery and 4.0% right). (thecardiologyadvisor.com)
  • Although coronary embolism was performed because her chest pain tral prosthetic valve. (who.int)
  • Attempted nonsurgical electrical ablation of accessory pathways via the coronary sinus in the Wolff-Parkinson-White syndrome. (msjonline.org)
  • Several anatomic variations of this communication have been described, including partial fenestrations between the walls of the coronary sinus and left atrium to a complete atresia of the coronary sinus orifice. (medscape.com)
  • The basic knowledge of coronary sinus and its tributaries play a significant role during electrophysiological procedures. (msjonline.org)
  • We report a case of 5-year-old girl with double outlet right ventricle with a rare combination of partial anomalous pulmonary venous drainage into a persistent left superior caval vein in the presence of an unroofed coronary sinus while highlighting its possible embryological origins and therapeutic implications. (dataemia.com)
  • Snellen HA, Dekker A. Anomalous pulmonary venous drainage in relation to left superior vena cava and coronary sinus. (dataemia.com)
  • Mazek H, Omar S, Strefling J, Ali E, Fenur M,Wischmeyer J.Anomalous Origin Of the Right Coronary Artery From the Left Coronary Sinus. (ttuhsc.edu)
  • Coronary sinus ASDs account for less than 1% of all types of ASDs. (medscape.com)
  • Gaita F, Paperini L, Riccardi R, Ferraro A. Cryothermic ablation within the coronary sinus of an epicardial posterolateral pathway. (msjonline.org)
  • Introduction: La coronarographie est une méthode exploratrice et thérapeutique des artères coronaires qui connait depuis quelques années des avancées remarquables, de telle sorte que ses indications peuvent s'étendre à tous les âges en fonction des orientations cliniques. (bvsalud.org)