Alcohol Septal Ablation in Hypertrophic Obstructive Cardiomyopathy
... graphy is repeated after alcohol injection in order to identify the alcohol impregnation of the target septal area.38 The amount of injected alcohol depends principally on the echocardiographically estimated size of the contrasted septal area and less on the acute haemodynamic effect. This has gradu ...
... graphy is repeated after alcohol injection in order to identify the alcohol impregnation of the target septal area.38 The amount of injected alcohol depends principally on the echocardiographically estimated size of the contrasted septal area and less on the acute haemodynamic effect. This has gradu ...
Twist Mechanics of the Left Ventricle
... Twist Mechanics of the Left Ventricle Principles and Application ...
... Twist Mechanics of the Left Ventricle Principles and Application ...
PDF
... mainly through the activation of I KACh . Experimental studies also show that vagal stimulation increases the spatial dispersion in atrial refractoriness,25-28 as well as in APD. Both absolute APD/ERP shortening and increased APD/ERP heterogeneity facilitate reentry and tachyarrhythmia. Liu et al.27 ...
... mainly through the activation of I KACh . Experimental studies also show that vagal stimulation increases the spatial dispersion in atrial refractoriness,25-28 as well as in APD. Both absolute APD/ERP shortening and increased APD/ERP heterogeneity facilitate reentry and tachyarrhythmia. Liu et al.27 ...
Congenital Aneurysm of the Sinus of Valsalva
... and when VSD is present, AR usually results from a prolapsed cusp , and when VSD is not present , AR usually arises from other valve abnormalities • Pulmonary stenosis is uncommon, but small gradients are common. • Others are uncommonly, but any defects including COA, PDA, ASD, subaortic stenosis & ...
... and when VSD is present, AR usually results from a prolapsed cusp , and when VSD is not present , AR usually arises from other valve abnormalities • Pulmonary stenosis is uncommon, but small gradients are common. • Others are uncommonly, but any defects including COA, PDA, ASD, subaortic stenosis & ...
Diastolic Heart Failure After Cardiac Surgery
... effect are briefly explained. Atrial fibrillation is a common occurrence in the postoperative period. It causes loss of atrial contraction that results in impaired diastolic filling. Myocardial hypertrophy is another predisposing factor found in some of the valvular lesions and in hypertensive patie ...
... effect are briefly explained. Atrial fibrillation is a common occurrence in the postoperative period. It causes loss of atrial contraction that results in impaired diastolic filling. Myocardial hypertrophy is another predisposing factor found in some of the valvular lesions and in hypertensive patie ...
Fulltext - Jultika
... decreasing cardiac performance accompanied with increases in pulmonary vascular pressure and its concurrent development of pulmonary dysfunction. Right heart failure may have various etiologies, the more common being failure due to chronically increased pulmonary pressures. These in turn may be pulm ...
... decreasing cardiac performance accompanied with increases in pulmonary vascular pressure and its concurrent development of pulmonary dysfunction. Right heart failure may have various etiologies, the more common being failure due to chronically increased pulmonary pressures. These in turn may be pulm ...
4D Flow Assessment of Vorticity in Right Ventricular Diastolic
... diastolic function. The adaptive changes that result from chronic pressure overload in pulmonary arterial hypertension (PAH) lead to myocardial hypertrophy, stiffening, and right ventricular diastolic dysfunction (RVDD) [16], and are thus likely to affect the vorticity field. Additionally, a growing ...
... diastolic function. The adaptive changes that result from chronic pressure overload in pulmonary arterial hypertension (PAH) lead to myocardial hypertrophy, stiffening, and right ventricular diastolic dysfunction (RVDD) [16], and are thus likely to affect the vorticity field. Additionally, a growing ...
Alternate Sites of Permanent Cardiac Pacing: A Randomized Study
... technique, which varies according to the individual implanter. Thus, in the 2 patients in whom implantation of the prototype leads could not be carried out successfully, there was lead dislodgment during the procedure, which was subsequently turned into a conventional implant with standard leads. Ho ...
... technique, which varies according to the individual implanter. Thus, in the 2 patients in whom implantation of the prototype leads could not be carried out successfully, there was lead dislodgment during the procedure, which was subsequently turned into a conventional implant with standard leads. Ho ...
Learn ECG in a Day
... add up when they are going in the same direction and they get cancelled if they point in the opposite directions. But in case if they are at an angle to each other, they add or subtract energy and change their resultant direction of flow. Now just imagine, how many cells the heart is composed of?. ...
... add up when they are going in the same direction and they get cancelled if they point in the opposite directions. But in case if they are at an angle to each other, they add or subtract energy and change their resultant direction of flow. Now just imagine, how many cells the heart is composed of?. ...
070199 Prevalence and Clinical Outcome of Mitral
... ITRAL-VALVE prolapse has been described as a common disorder, with prevalence estimates generally ranging from 5 to 15 percent and up to 35 percent in some studies.1-7 In addition, mitral-valve prolapse has often been portrayed as a disease with frequent and serious complications, including stroke, ...
... ITRAL-VALVE prolapse has been described as a common disorder, with prevalence estimates generally ranging from 5 to 15 percent and up to 35 percent in some studies.1-7 In addition, mitral-valve prolapse has often been portrayed as a disease with frequent and serious complications, including stroke, ...
Inspection of Neck Veins - Turner White Communications
... in restrictive cardiomyopathy, right ventricular infarction, and acute cor pulmonale. Abdominojugular reflux sign. In patients with a normal CVP at rest who are suspected of having right ventricular failure, elicitation of the abdominojugular reflux sign may be useful. The sign is sometimes referred ...
... in restrictive cardiomyopathy, right ventricular infarction, and acute cor pulmonale. Abdominojugular reflux sign. In patients with a normal CVP at rest who are suspected of having right ventricular failure, elicitation of the abdominojugular reflux sign may be useful. The sign is sometimes referred ...
Syncope - American College of Physicians
... • Carotid Sinus Syncope define by hypersensitivity in the presence of syncope ...
... • Carotid Sinus Syncope define by hypersensitivity in the presence of syncope ...
Normal Reference Values of Tissue Doppler Imaging Parameters for
... Background: Tissue Doppler imaging is used routinely to quantify both left and right ventricular function. However, normal reference values of echocardiography parameters of the right ventricle in Iranian population are still unknown. Objectives: Accordingly, we conducted a study to determine the no ...
... Background: Tissue Doppler imaging is used routinely to quantify both left and right ventricular function. However, normal reference values of echocardiography parameters of the right ventricle in Iranian population are still unknown. Objectives: Accordingly, we conducted a study to determine the no ...
A Direct Examination of Papillary Muscle Function in the Canine Left
... than 0.272 seconds, the leaflets had time to drift apart resulting in two separate closures. Since Dean made his observations, a number of investigators have studied the effect of atrial systole on valve closure. ...
... than 0.272 seconds, the leaflets had time to drift apart resulting in two separate closures. Since Dean made his observations, a number of investigators have studied the effect of atrial systole on valve closure. ...
Diagnosis and Treatment of Bicuspid Aortic Valve Disease
... even when there is aortic stenosis. Aortic root dilates with the dissociation of the elastic tissue on the aortic valve and aortic insufficiency develops. In the 43%-60% of the BAV cases with severe aortic stenosis, secondary infective endocarditis is detected. Infective endocarditis is a well-known ...
... even when there is aortic stenosis. Aortic root dilates with the dissociation of the elastic tissue on the aortic valve and aortic insufficiency develops. In the 43%-60% of the BAV cases with severe aortic stenosis, secondary infective endocarditis is detected. Infective endocarditis is a well-known ...
Left Ventricular Papillary Muscles
... from each other in the same heart, considerable morphologic variation is observed in comparing either or both muscles from one heart with those of another. The A-L papillary muscle usually (75%) consists of a single major muscle group, whereas the P-M papillary muscle often (65%) consists of two or ...
... from each other in the same heart, considerable morphologic variation is observed in comparing either or both muscles from one heart with those of another. The A-L papillary muscle usually (75%) consists of a single major muscle group, whereas the P-M papillary muscle often (65%) consists of two or ...
Case-Based Curriculum in Clinical Electrophysiology
... outflow tract VT due to its unusual location.39 In their Teaching Points presentation Thajudeen and coworkers demonstrate these principles in a patient with multiple accessory pathways with antidromic AV reentry and orthodromic tachycardias as well as atrial tachycardia.40 Leiria and colleagues prov ...
... outflow tract VT due to its unusual location.39 In their Teaching Points presentation Thajudeen and coworkers demonstrate these principles in a patient with multiple accessory pathways with antidromic AV reentry and orthodromic tachycardias as well as atrial tachycardia.40 Leiria and colleagues prov ...
101 Anatomical Particularities of the Papillary Muscles, Tendonous
... and papillary forms, and also on the tendinous cordages of the left ventricle. Compared to the classical descriptions, especially concerning the human hearts, in this case, the observations made on pig hearts revealed that there is a large variety from one individual to another regarding the distrib ...
... and papillary forms, and also on the tendinous cordages of the left ventricle. Compared to the classical descriptions, especially concerning the human hearts, in this case, the observations made on pig hearts revealed that there is a large variety from one individual to another regarding the distrib ...
Percutaneous Left Atrial Appendage Closure Devices for Stroke
... prone to biases. For the use of LAA closure devices, the appropriate comparison group could be oral anticoagulation, no therapy (for patients who have prohibitive risk for oral anticoagulation), or open surgical repair. The evidence on the efficacy of LAA closure devices consists of numerous case se ...
... prone to biases. For the use of LAA closure devices, the appropriate comparison group could be oral anticoagulation, no therapy (for patients who have prohibitive risk for oral anticoagulation), or open surgical repair. The evidence on the efficacy of LAA closure devices consists of numerous case se ...
Atrial Fibrillation After Lung Transplantation
... Post-operative pericaridits has been linked to atrial fibrillation after cardiac surgery .14 Pericarditis may cause atrial epicardial inflammatory injury and serve as a substrate for atrial fibrillation. For example, epicardial implantable cardioverterdefibrillator (ICD) implantation results in sign ...
... Post-operative pericaridits has been linked to atrial fibrillation after cardiac surgery .14 Pericarditis may cause atrial epicardial inflammatory injury and serve as a substrate for atrial fibrillation. For example, epicardial implantable cardioverterdefibrillator (ICD) implantation results in sign ...
Atrial Autonomic Innervation
... rather than with an increase in vagal or sympathetic drive alone (24–28). In animal models and humans, betaadrenergic agonists (isoproterenol and epinephrine) can induce AF (29,30). Increased AF susceptibility in rats with chronic endurance exercise is caused by vagal promotion and occurs via augmen ...
... rather than with an increase in vagal or sympathetic drive alone (24–28). In animal models and humans, betaadrenergic agonists (isoproterenol and epinephrine) can induce AF (29,30). Increased AF susceptibility in rats with chronic endurance exercise is caused by vagal promotion and occurs via augmen ...
Cardiovascular emergency crisis: Arrhythmias EKG and Cardiac Arrest
... Arrhythmias In this class you will learn What an arrhythmia is, and what it does (and doesn’t do) to people About rhythm strips, Holter monitors, and event monitors To determine the heart rate from the EKG The four basic types of arrhythmias To recognize the four common types of sinus arrhythmias W ...
... Arrhythmias In this class you will learn What an arrhythmia is, and what it does (and doesn’t do) to people About rhythm strips, Holter monitors, and event monitors To determine the heart rate from the EKG The four basic types of arrhythmias To recognize the four common types of sinus arrhythmias W ...
Heart smart mobstyle - The Heart Foundation
... your heart is a muscle that pumps blood to all parts of your body. The blood pumped by your heart provides your body with the oxygen and nutrients it needs to function. Your heart is about the size of your clenched fist. It lies in the middle of your chest, behind and slightly to the left of your br ...
... your heart is a muscle that pumps blood to all parts of your body. The blood pumped by your heart provides your body with the oxygen and nutrients it needs to function. Your heart is about the size of your clenched fist. It lies in the middle of your chest, behind and slightly to the left of your br ...
Heart Guide - Center for Plain Language
... years to develop, gradually worsening if left untreated. Heart failure usually progresses for some time before it’s diagnosed. Heart failure patients often experience weakness and fatigue. This is because aspects of the well-oiled heart machine are not firing on all cylinders. The heart has two side ...
... years to develop, gradually worsening if left untreated. Heart failure usually progresses for some time before it’s diagnosed. Heart failure patients often experience weakness and fatigue. This is because aspects of the well-oiled heart machine are not firing on all cylinders. The heart has two side ...
Lutembacher's syndrome
Lutembacher's syndrome is a form of congenital heart disease. Lutembacher's syndrome was first described by a French cardiologist by the name of Rene' Lutembacher (1884–1968) of Paris, France in 1916. Lutembacher syndrome is a rare disease that affects one of the chambers of the heart as well as a valve of the heart. Lutembacher's syndrome is known to affect females more often than males. Lutembacher is an extremely rare disease. Lutembacher's can affect children or adults; the person can either be born with the disorder or develop it later in life.Lutembacher affects more specifically the atria of the heart and the mitral or biscupid valve. The disorder itself is known more specifically as both congenital atrial septal defect (ASD) and acquired mitral stenosis (MS). Congenital (at birth) atrial septal defect refers to a hole being in the septum or wall that separates the two atria; this condition is usually seen in fetuses and infants. Mitral stenosis refers to mitral valve leaflets (or valve flaps) sticking to each other making the opening for blood to pass from the atrium to the ventricles very small. With the valve being so small, blood has difficulty passing through the left atrium into the left ventricle. There are several types of septal defects that may occur with Lutembacher's syndrome: ASD Ostium Secundum or ASD (Primium); Ostium Secundum is the most prevalent.Lutembacher is caused indirectly as the result of heart damage or disorders and not something that is necessarily infectious. Lutembacher's syndrome is caused by either birth defects where the heart fails to close all holes in the walls between the atria or from an episode of rheumatic fever where damage is done to the heart valves such as the mitral valve and resultant in an opening of heart wall between atria. With Lutembacher's syndrome, a fetus or infant is usually seen to have a hole in their heart wall (interatrial) separating their right and left atria. Normally during fetal development, blood bypasses the lungs and is oxygenated from the placenta. Blood passes from the umbilical cord and flows into the left atrium through an opening called the foramen ovale; the formaen ovale is a hole between the two atria. Once a baby is born and the lungs begin to fill with air and the blood flow of the heart changes, a tissue flap (somewhat like a trap door) called the septum primium closes the foramen ovale or hole between the two atria and becomes part of the atrial wall. The failure of the hole between the two atria to close after birth leads to a disorder called ASD primium. The most common problems with an opening found in the heart with Lutembacher's syndrome is Ostium Secundum. Ostium Secundum is a hole that is found within the flap of tissue (septum primium) that will eventually close the hole between the two atria after birth. With either type of ASD, ASD will usually cause the blood flow from the right atrium to skip going to the right ventricle and instead flow to the left atrium. If mitral stenosis (the hardening of flap of tissue known as a valve which opens and closes between the left atrium and ventricle to control blood flow) is also present, blood will flow into the right atrium through the hole between the atria wall instead of flowing into the left ventricle and systemic circulation. Eventually this leads to other problems such as the right ventricle failing and a reduced blood flow to the left ventricle.In addition to the ASD, acquired MS can be present either from an episode of rheumatic fever (the mother has or had rheumatic fever during the pregnancy) or the child being born with the disorder (congenital MS). With the combination of both ASD and MS, the heart can be under severe strain as it tries to move blood throughout the heart and lungs. To correct Lutembacher's syndrome, surgery is often done. There are several types of surgeries depending on the cause of Lutembacher's syndrome(ASD Primium or ASD Ostium Secundum with Mitral Stenosis): Suturing (stitching) or placing a patch of tissue (similar to skin grafting) over the hole to completely close the opening Reconstructing of the mitral and tricuspid valve while patching any holes in the heart Device closure of ASD (e.g. Amplatzer umbrella or CardioSEAL to seal the hole Percutaneous transcatheter therapy Transcatheter therapy of balloon valvuloplasty to correct MS↑ ↑ 2.0 2.1 2.2 2.3 2.4 ↑ 3.0 3.1 3.2 3.3 3.4 ↑ ↑ ↑ 6.0 6.1 6.2 6.3 ↑