dividing wall
... The P wave is the result of depolarisation spreading across the atria from the SA node; it coincides with atrial contraction or systole The QRS wave or complex is the result of depolarisation of the ventricles and coincides with ventricular systole The T wave is the result of repolarisation of the v ...
... The P wave is the result of depolarisation spreading across the atria from the SA node; it coincides with atrial contraction or systole The QRS wave or complex is the result of depolarisation of the ventricles and coincides with ventricular systole The T wave is the result of repolarisation of the v ...
Sudden Natural Death Most people believe the medical examiner or
... heart disease. Proper oxygenation of the heart wall (myocardium) is prevented because of the plugging of the vessel. When severe, this buildup leads to chest pain, heart attacks, and arrhythmias (abnormal heart beats). Arrhythmias are the main complication of atherosclerotic coronary artery disease, ...
... heart disease. Proper oxygenation of the heart wall (myocardium) is prevented because of the plugging of the vessel. When severe, this buildup leads to chest pain, heart attacks, and arrhythmias (abnormal heart beats). Arrhythmias are the main complication of atherosclerotic coronary artery disease, ...
Restrictive Cardiomyopathy in Cats
... and heart failure. It is important to monitor these values so that undesirable side effects can be avoided or minimized. ...
... and heart failure. It is important to monitor these values so that undesirable side effects can be avoided or minimized. ...
Anatomy and Physiology
... and more overlapping of actin and myosin. also why with increased volume (EDV-end diastolic volume) cause increased contraction because stretch out sarcomere and have more to come back to resting. - there are NO graded contractions in cardiac muscle Functional syncytium – often used to describe myoc ...
... and more overlapping of actin and myosin. also why with increased volume (EDV-end diastolic volume) cause increased contraction because stretch out sarcomere and have more to come back to resting. - there are NO graded contractions in cardiac muscle Functional syncytium – often used to describe myoc ...
Factors Influencing the Presence of Mitral Valve Prolapse in
... the maternal mortality rate was higher with VHD than with coronary heart disease [13]. Previous studies have proven that mitral regurgitation is generally well tolerated in pregnancy [14, 15]. Yet, when there is the case of ventricular dysfunction or an additional valve lesion, the risk of developin ...
... the maternal mortality rate was higher with VHD than with coronary heart disease [13]. Previous studies have proven that mitral regurgitation is generally well tolerated in pregnancy [14, 15]. Yet, when there is the case of ventricular dysfunction or an additional valve lesion, the risk of developin ...
Mitral Valve Disease and Heart Failure Mitral Valve Disease
... fluid leaks out of the pulmonary capillaries and into the air spaces (alveoli) of the lung; this is called pulmonary oedema. This fluid collection in the lungs produces very obvious signs and may be one of the Copyright © 2007 by VetCare Tauranga Ltd ...
... fluid leaks out of the pulmonary capillaries and into the air spaces (alveoli) of the lung; this is called pulmonary oedema. This fluid collection in the lungs produces very obvious signs and may be one of the Copyright © 2007 by VetCare Tauranga Ltd ...
Inflammatory Heart Disease
... Valvular disease occurs as two main dosorders: stenosis and regurgitation. In stenosis, the valve leaflets fuse together via vegetation or a congenital defect. This causes the valve opening to narrow an become rigid which impedes forward blood flow ultimately leading to decreased cardiac output. Som ...
... Valvular disease occurs as two main dosorders: stenosis and regurgitation. In stenosis, the valve leaflets fuse together via vegetation or a congenital defect. This causes the valve opening to narrow an become rigid which impedes forward blood flow ultimately leading to decreased cardiac output. Som ...
Surgical Heart Valve Portfolio
... annulus (not reducible by standard techniques), severe valvular dysfunction (not correctable by standard techniques), valvular retraction with severely reduced mobility, congenital malformations with lack of valvular tissue. Warnings/Precautions/Adverse Events: Only physicians who have received prop ...
... annulus (not reducible by standard techniques), severe valvular dysfunction (not correctable by standard techniques), valvular retraction with severely reduced mobility, congenital malformations with lack of valvular tissue. Warnings/Precautions/Adverse Events: Only physicians who have received prop ...
299-1283-1-SP - International Cardiovascular Forum Journal
... Midline sternotomy was performed and mitral mass was not found. The surgeon performed mitral valve replacement using mechanical prosthesis. Histology of biopsies showed central ischemic necrosis of the myocardium and perivascular calcifications of papillary muscles with myxoid degeneration and lymph ...
... Midline sternotomy was performed and mitral mass was not found. The surgeon performed mitral valve replacement using mechanical prosthesis. Histology of biopsies showed central ischemic necrosis of the myocardium and perivascular calcifications of papillary muscles with myxoid degeneration and lymph ...
Ventricular Septal Defect
... The heart has two ventricles, the left ventricle and the right ventricle. These are the lower pumping chambers of the heart. The right ventricle pumps blood to the lungs to receive oxygen and the left ventricle pumps this oxygenated blood out of heart to the body. A VSD is a “hole” (an opening) in t ...
... The heart has two ventricles, the left ventricle and the right ventricle. These are the lower pumping chambers of the heart. The right ventricle pumps blood to the lungs to receive oxygen and the left ventricle pumps this oxygenated blood out of heart to the body. A VSD is a “hole” (an opening) in t ...
Brugada`s Syndrome
... Brugada syndrome EKG & combined with an absence of heart abnormalities will give the diagnosis. This type of EKG is linked to increase risk for ventricular tachyarrhythmias, cardiac arrest & sudden death. Shows familial aggregation. (Postema, et al., 2009) ...
... Brugada syndrome EKG & combined with an absence of heart abnormalities will give the diagnosis. This type of EKG is linked to increase risk for ventricular tachyarrhythmias, cardiac arrest & sudden death. Shows familial aggregation. (Postema, et al., 2009) ...
HLC1464 - Unitec Research Bank
... annular motion (systolic (Sm), early diastolic (Em), late diastolic (Am) velocities); Tei index (Tei index = (isovolumetric contraction time + isovolumic relaxation time)/ejection time). Similar measurements were obtained from the LV by both conventional and tissue Doppler (septal and lateral walls) ...
... annular motion (systolic (Sm), early diastolic (Em), late diastolic (Am) velocities); Tei index (Tei index = (isovolumetric contraction time + isovolumic relaxation time)/ejection time). Similar measurements were obtained from the LV by both conventional and tissue Doppler (septal and lateral walls) ...
Circulatory System:
... Not a recording of a single action potential in a single cell at a single point in time Comparisons in voltage detected by electrodes at two different points on body surface, not the actual potential Does not record potential at all when ventricular muscle is either completely depolarized or complet ...
... Not a recording of a single action potential in a single cell at a single point in time Comparisons in voltage detected by electrodes at two different points on body surface, not the actual potential Does not record potential at all when ventricular muscle is either completely depolarized or complet ...
Aortic Valve
... Management strategy for patients with chronic severe aortic regurgitation. Preoperative coronary angiography should be performed routinely as determined by age, symptoms, and coronary risk factors. Cardiac catheterization and angiography may also be helpful when there is discordance between clinical ...
... Management strategy for patients with chronic severe aortic regurgitation. Preoperative coronary angiography should be performed routinely as determined by age, symptoms, and coronary risk factors. Cardiac catheterization and angiography may also be helpful when there is discordance between clinical ...
Multimodality imaging of Churg–Strauss myocarditis
... diastolic filling (c) and longitudinal axis function (d). LA, left atrium; LV, left ventricle; RA, right atrium; RV, right ventricle. ...
... diastolic filling (c) and longitudinal axis function (d). LA, left atrium; LV, left ventricle; RA, right atrium; RV, right ventricle. ...
Pulmonary semilunar valve
... • Artificial pacemaker needed if pace is too slow • Extra beats forming at other sites are called ectopic pacemakers – caffeine & nicotine increase activity ...
... • Artificial pacemaker needed if pace is too slow • Extra beats forming at other sites are called ectopic pacemakers – caffeine & nicotine increase activity ...
A New Twist on Mitral Regurgitation
... chamber contractility, independent of changes in chamber size, load, or intrinsic myocardial contrac- ...
... chamber contractility, independent of changes in chamber size, load, or intrinsic myocardial contrac- ...
Approach to a Dilated Right Ventricle
... diagnosis. Abnormal important findings include RV dilatation, RV regional wall abnormalities, reversed interventricular septal curvature towards LV due to increased RV end diastolic pressure. However the RWMA of RV may be correlated with whole clinical picture as it could be a relative non specific ...
... diagnosis. Abnormal important findings include RV dilatation, RV regional wall abnormalities, reversed interventricular septal curvature towards LV due to increased RV end diastolic pressure. However the RWMA of RV may be correlated with whole clinical picture as it could be a relative non specific ...
Myocardial Scar Detected by Cardiovascular Magnetic Resonance
... An ECG showed signs of left ventricular hypertrophy with positive Sokolow-Lyon-Index. Transthoracic echocardiography demonstrated a normal left ventricular systolic function (ejection fraction 60%) with concentric left ventricular hypertrophy (septal wall thickness (SWT) was 15 mm and the posterior ...
... An ECG showed signs of left ventricular hypertrophy with positive Sokolow-Lyon-Index. Transthoracic echocardiography demonstrated a normal left ventricular systolic function (ejection fraction 60%) with concentric left ventricular hypertrophy (septal wall thickness (SWT) was 15 mm and the posterior ...
心脏瓣膜病
... medical management with ACE inhibitors, beta blockers, digoxin, and diuretics • It is estimated 15% of all heart failure patients may be candidates for cardiac resynchronization therapy (see later section for details) • Close follow-up of the heart failure patient is essential, with necessary adjust ...
... medical management with ACE inhibitors, beta blockers, digoxin, and diuretics • It is estimated 15% of all heart failure patients may be candidates for cardiac resynchronization therapy (see later section for details) • Close follow-up of the heart failure patient is essential, with necessary adjust ...
chapter - Human Kinetics
... In atrial flutter, the atrial rate is 200 to 350 beats · min–1 (300 beats · min–1 in this example), but the ventricular rate is much slower. ...
... In atrial flutter, the atrial rate is 200 to 350 beats · min–1 (300 beats · min–1 in this example), but the ventricular rate is much slower. ...
Aetiology of sudden cardiac death in sport: a histopathologist`s
... or angina in infancy or early adult life. An anomalous LCA originating from the right coronary sinus is considered more dangerous than the RCA originating from the left coronary sinus.13 High take-off of the coronary artery (greater than 10 mm above the sinutubular junction) has been associated with ...
... or angina in infancy or early adult life. An anomalous LCA originating from the right coronary sinus is considered more dangerous than the RCA originating from the left coronary sinus.13 High take-off of the coronary artery (greater than 10 mm above the sinutubular junction) has been associated with ...
Histopathological study of the cardiac conduction system in systemic
... affect more than 50% of SLE cases. All portions of the heart can be involved: pericardium, myocardium, cardiac conduc tion system, as well as coronary arteries. Pericarditis is the most common finding, while endocarditis is characterized by small nonbacterial vegetations along the valve leaflets kn ...
... affect more than 50% of SLE cases. All portions of the heart can be involved: pericardium, myocardium, cardiac conduc tion system, as well as coronary arteries. Pericarditis is the most common finding, while endocarditis is characterized by small nonbacterial vegetations along the valve leaflets kn ...
Transposition of the Great Arteries
... May be indicated within the first few hours of life Medical management to maintain an open ductus arteriosus ...
... May be indicated within the first few hours of life Medical management to maintain an open ductus arteriosus ...
PACES Cardiology notes 1. Aortic valve replacement 2. Mitral valve
... patients, particularly those at high risk of surgery, with a non-dilated annulus, and with specific leaflet dysfunction. What is the anatomy of the mitral valve? The valve has an anterior leaflet which lies close to the aortic valve, and a posterior leaflet. Each are divided into 3 scallops or segme ...
... patients, particularly those at high risk of surgery, with a non-dilated annulus, and with specific leaflet dysfunction. What is the anatomy of the mitral valve? The valve has an anterior leaflet which lies close to the aortic valve, and a posterior leaflet. Each are divided into 3 scallops or segme ...
Hypertrophic cardiomyopathy
Hypertrophic cardiomyopathy (HCM) is a primary disease of the myocardium (the muscle of the heart) in which a portion of the myocardium is hypertrophied (thickened) without any obvious cause, creating functional impairment of the cardiac muscle. It is a leading cause of sudden cardiac death in young athletes.The occurrence of hypertrophic cardiomyopathy is a significant cause of sudden unexpected cardiac death in any age group and as a cause of disabling cardiac symptoms. Younger people are likely to have a more severe form of hypertrophic cardiomyopathy.HCM is frequently asymptomatic until sudden cardiac death, and for this reason some suggest routinely screening certain populations for this disease.A cardiomyopathy is a disease that affects the muscle of the heart. With HCM, the myocytes (cardiac contractile cells) in the heart increase in size, which results in the thickening of the heart muscle. In addition, the normal alignment of muscle cells is disrupted, a phenomenon known as myocardial disarray. HCM also causes disruptions of the electrical functions of the heart. HCM is most commonly due to a mutation in one of nine sarcomeric genes that results in a mutated protein in the sarcomere, the primary component of the myocyte (the muscle cell of the heart). These are predominantly single-point missense mutations in the genes for beta-myosin heavy chain (MHC), myosin-binding protein C, cardiac troponinT, or tropomyosin. These mutations cause myofibril and myocyte structural abnormalities and possible deficiencies in force generation. Not to be confused with dilated cardiomyopathy or any other cardiomyopathy.While most literature so far focuses on European, American, and Japanese populations, HCM appears in all ethnic groups. The prevalence of HCM is about 0.2% to 0.5% of the general population.