Case report and images in cardiology
... Shone’s complex was first described in 1963 by Shone et al., who noted on post-mortem examinations the tendency of four obstructive left-sided lesions (supramitral ring; parachute mitral ...
... Shone’s complex was first described in 1963 by Shone et al., who noted on post-mortem examinations the tendency of four obstructive left-sided lesions (supramitral ring; parachute mitral ...
Left ventricular adaptive response after surgery of aortic valve
... is tricuspid aortic valve or congenital bicuspid valve calcification. Aortic stenosis is a condition with a deleterious natural evolution for the patient, which occurs in the general population, with higher incidence in older adults. Medical treatment offers suboptimal results for this population. S ...
... is tricuspid aortic valve or congenital bicuspid valve calcification. Aortic stenosis is a condition with a deleterious natural evolution for the patient, which occurs in the general population, with higher incidence in older adults. Medical treatment offers suboptimal results for this population. S ...
Heart Anatomy (cont)
... moving away from the sensing electrode. When there are conduction defects (cardiac arrhythmias), changes in the ECG may be apparent. For example, scar tissue that forms after a heart attack does not conduct so a “detour” occurs to produce an altered tracing. ...
... moving away from the sensing electrode. When there are conduction defects (cardiac arrhythmias), changes in the ECG may be apparent. For example, scar tissue that forms after a heart attack does not conduct so a “detour” occurs to produce an altered tracing. ...
Heart blood flow simulation: a perspective review | BioMedical
... visualize the three-dimensional (3D) flow evolution over cardiac cycles by combining 3D spatial encoding and the 3D velocity-encode phase contrast method [4]. As stated in [4], the scan time is relatively long, of the order of 20 min or more, with spatial and temporal resolutions of 2–3 mm and 40–5 ...
... visualize the three-dimensional (3D) flow evolution over cardiac cycles by combining 3D spatial encoding and the 3D velocity-encode phase contrast method [4]. As stated in [4], the scan time is relatively long, of the order of 20 min or more, with spatial and temporal resolutions of 2–3 mm and 40–5 ...
Auscultation of the Heart
... healthy adults. An S3 can be a normal variant in children and may persist into young adulthood.3 An S3 gallop (also called a ventricular gallop) is frequently a sign of left ventricular failure. The S3 gallop can be heard in patients with any condition resulting in rapid ventricular filling and volu ...
... healthy adults. An S3 can be a normal variant in children and may persist into young adulthood.3 An S3 gallop (also called a ventricular gallop) is frequently a sign of left ventricular failure. The S3 gallop can be heard in patients with any condition resulting in rapid ventricular filling and volu ...
Pulmonary Atresia With Intact Ventricular Septum
... remain, forming the sinusoids, which are connected with the myocardial capillary bed and, via the latter, with the epicardial coronary arteries.4 The sinusoids carry poorly oxygenated blood to the myocardium and can end blindly.5 They are subjected to high systolic pressures which lead to hypertroph ...
... remain, forming the sinusoids, which are connected with the myocardial capillary bed and, via the latter, with the epicardial coronary arteries.4 The sinusoids carry poorly oxygenated blood to the myocardium and can end blindly.5 They are subjected to high systolic pressures which lead to hypertroph ...
the heart - Cloudfront.net
... Freshly oxygenated blood leaving the lungs is returned to the left atrium and passes into the left ventricle, which pumps it into the aorta The aorta transports blood via smaller arteries to the body tissues, where gases and nutrients are exchanged across the capillary walls Then the blood, once aga ...
... Freshly oxygenated blood leaving the lungs is returned to the left atrium and passes into the left ventricle, which pumps it into the aorta The aorta transports blood via smaller arteries to the body tissues, where gases and nutrients are exchanged across the capillary walls Then the blood, once aga ...
2011 Cardio - Arlington High School
... Congestive heart failure – when the pumping efficiency of the heart is depressed so that circulation is inadequate to meet tissue needs. A progressive condition that may be caused by coronary atherosclerosis (blockage of coronary vessels with fatty buildup), persistent high blood pressure or mul ...
... Congestive heart failure – when the pumping efficiency of the heart is depressed so that circulation is inadequate to meet tissue needs. A progressive condition that may be caused by coronary atherosclerosis (blockage of coronary vessels with fatty buildup), persistent high blood pressure or mul ...
The Cardiovascular System: The Heart Heart`s Place in the
... As ventricles relax, pressure in ventricles drops; blood flows back against cusps of semilunar valves and forces them closed. Blood flows into the relaxed atria. ...
... As ventricles relax, pressure in ventricles drops; blood flows back against cusps of semilunar valves and forces them closed. Blood flows into the relaxed atria. ...
Syndrome of Left Ventricular-Right Atrial
... mechanism reverted to a sinus one within 18 hours. The patient was discharged to return at a later date for surgical repair of his defect. He was admitted for the third time on Jan. 5, 1954. He had been well between admissions and physical examination was essentially unchanged. The heart was greatly ...
... mechanism reverted to a sinus one within 18 hours. The patient was discharged to return at a later date for surgical repair of his defect. He was admitted for the third time on Jan. 5, 1954. He had been well between admissions and physical examination was essentially unchanged. The heart was greatly ...
Left atrial myxoma with aortic regurgitation - Heart
... helpful in excluding mitral stenosis but cardiac catheterisation was considered necessary to show conclusively that the abnormal echoes posterior to the anterior leaflet of the mitral valve and the aortic root (Fig. 1A and 1B) were the result of a left atrial tumour. These abnormal echoes were then ...
... helpful in excluding mitral stenosis but cardiac catheterisation was considered necessary to show conclusively that the abnormal echoes posterior to the anterior leaflet of the mitral valve and the aortic root (Fig. 1A and 1B) were the result of a left atrial tumour. These abnormal echoes were then ...
Mechanisms of Fixed Splitting of the Second Heart Sound
... was done. Eight of these patients were recatheterized postoperatively. By this evidence the defect had been closed in all. In the preoperative phonocardiograms the splitting of the second heart sound remained fixed throughout respiration. In one patient not operated upon because the shunt was small ...
... was done. Eight of these patients were recatheterized postoperatively. By this evidence the defect had been closed in all. In the preoperative phonocardiograms the splitting of the second heart sound remained fixed throughout respiration. In one patient not operated upon because the shunt was small ...
3 stages
... murmur is transient systolic roller protruding into the lumen of the left ventricular outflow chamber as a result of systolic thickening or bulging subaortic ventricular septal area. In other words, a common cause of systolic murmur - deformation of the left ventricular cavity contours, especially ...
... murmur is transient systolic roller protruding into the lumen of the left ventricular outflow chamber as a result of systolic thickening or bulging subaortic ventricular septal area. In other words, a common cause of systolic murmur - deformation of the left ventricular cavity contours, especially ...
Atrioventricular Pressure Half-Time
... sec; the half-time remained relatively unaffected, averaging 160 ± 10 msec. During exercise, the R-R interval shortened as the heart rate increased, but the average half-time was decreased 13%, to an average of 140± 25 msec. Discussion ...
... sec; the half-time remained relatively unaffected, averaging 160 ± 10 msec. During exercise, the R-R interval shortened as the heart rate increased, but the average half-time was decreased 13%, to an average of 140± 25 msec. Discussion ...
CARDIAC DISEASES
... thicken, harden, and lose their elasticity. The blood vessel channels develop twists and turns and become narrowed so that the heart must work harder than normal to pump blood through the arteries. In the disease’s advanced stage, there is a risk of a decrease in blood flow and oxygen supply to all ...
... thicken, harden, and lose their elasticity. The blood vessel channels develop twists and turns and become narrowed so that the heart must work harder than normal to pump blood through the arteries. In the disease’s advanced stage, there is a risk of a decrease in blood flow and oxygen supply to all ...
The Heart and Circulatory System
... The two atria contract and relax; then the two ventricles contract and relax. This is how blood moves through the heart and is pumped to the lungs and the body. One complete sequence of contraction and relaxation is called a heartbeat. 35 of 49 ...
... The two atria contract and relax; then the two ventricles contract and relax. This is how blood moves through the heart and is pumped to the lungs and the body. One complete sequence of contraction and relaxation is called a heartbeat. 35 of 49 ...
a mathematical cardiovascular model with pulsatile and non
... approach is to consider that the relation between pressure and total volume is V = f (P ), which is nonlinear. In this case, the unstressed volume is given by Vu = f (0) and the compliance, c(P ) at pressure P is f 0 (P ) assuming ...
... approach is to consider that the relation between pressure and total volume is V = f (P ), which is nonlinear. In this case, the unstressed volume is given by Vu = f (0) and the compliance, c(P ) at pressure P is f 0 (P ) assuming ...
The Heart: Anatomy, Physiology and Exercise Physiology
... The heart is divided into four distinct chambers with muscular walls of different thickness [2, 4, 9]. The left atrium (LA) and right atrium (RA) are small, thinwalled chambers located just above the left ventricle (LV) and right ventricle (RV), respectively. The ventricles are larger thick-walled c ...
... The heart is divided into four distinct chambers with muscular walls of different thickness [2, 4, 9]. The left atrium (LA) and right atrium (RA) are small, thinwalled chambers located just above the left ventricle (LV) and right ventricle (RV), respectively. The ventricles are larger thick-walled c ...
Anatomy of the Human Heart
... Vena Cava, and Valves 7. The ___________ valve is found between the aorta and the left ventricle. ...
... Vena Cava, and Valves 7. The ___________ valve is found between the aorta and the left ventricle. ...
Preoperative echocardiographic clues for the repair of
... occurring secondary to left-sided heart disease or pulmonary hypertension in the absence of organic lesions of the tricuspid valve (TV) apparatus ...
... occurring secondary to left-sided heart disease or pulmonary hypertension in the absence of organic lesions of the tricuspid valve (TV) apparatus ...
Absent Pulmonary Valve Associated with Tetralogy of Fallot and
... Corrective surgery through a median sternotomy was performed when he was 5 months old. The right ventricular outflow was extremely elongated and extended to just below the bifurcation of the pulmonary artery. Thus the main pulmonary artery was almost absent and the pulmonary valve annulus was locate ...
... Corrective surgery through a median sternotomy was performed when he was 5 months old. The right ventricular outflow was extremely elongated and extended to just below the bifurcation of the pulmonary artery. Thus the main pulmonary artery was almost absent and the pulmonary valve annulus was locate ...
Chapter 7
... there is a hole in the septum that separates the right and left ventricles (Fig. 7.2). As a result, blood is short-circuited back into the lungs, putting a burden on both heart and lungs. About 30 percent to 50 percent of these holes, especially the smaller ones, close over time. Patients with large ...
... there is a hole in the septum that separates the right and left ventricles (Fig. 7.2). As a result, blood is short-circuited back into the lungs, putting a burden on both heart and lungs. About 30 percent to 50 percent of these holes, especially the smaller ones, close over time. Patients with large ...
Tunnel type left ventricular outflow tract obstruction: An unusual
... The patient had previously undergone stenting of coarctation of aorta. Left cardiac catheterization and echocardiography revealed normal coronary angiography, bicuspid aortic valve, with severe aortic stenosis, tunnel type LVOT obstraction and severe mitral requrgitation. Concerning the patient’s ec ...
... The patient had previously undergone stenting of coarctation of aorta. Left cardiac catheterization and echocardiography revealed normal coronary angiography, bicuspid aortic valve, with severe aortic stenosis, tunnel type LVOT obstraction and severe mitral requrgitation. Concerning the patient’s ec ...
Artificial heart valve
An artificial heart valve is a device implanted in the heart of a patient with valvular heart disease. When one of the four heart valves malfunctions, the medical choice may be to replace the natural valve with an artificial valve. This requires open-heart surgery.Valves are integral to the normal physiological functioning of the human heart. Natural heart valves are evolved to forms that perform the functional requirement of inducing unidirectional blood flow through the valve structure from one chamber of the heart to another. Natural heart valves become dysfunctional for a variety of pathological causes. Some pathologies may require complete surgical replacement of the natural heart valve with a heart valve prosthesis.