![Shi-Joon Yoo, Omar Thabit, Hyun Woo Goo, Whal Lee, Deane Yim](http://s1.studyres.com/store/data/007909572_1-f4a562d1476b296567bf23681c2c00cd-300x300.png)
Shi-Joon Yoo, Omar Thabit, Hyun Woo Goo, Whal Lee, Deane Yim
... The most commonly used terms ‘criss-cross heart’ and ‘superoinferior ventricles’ describe the hearts with the same or similar pathology from the different points of view and perspectives. The term ‘crisscross heart’ describes the directions of the two blood streams from the atria to the ventricular ...
... The most commonly used terms ‘criss-cross heart’ and ‘superoinferior ventricles’ describe the hearts with the same or similar pathology from the different points of view and perspectives. The term ‘crisscross heart’ describes the directions of the two blood streams from the atria to the ventricular ...
Ventricular structure, function, and mechanics at high altitude
... Due to the unique arrangement of myofibers, cardiac form and function are intrinsically linked, as reflected in the cardiac mechanics (LV twist and rotation and ventricular strain) that underpin ventricular function. In response to altered physiological demand, ventricular mechanics acutely change ( ...
... Due to the unique arrangement of myofibers, cardiac form and function are intrinsically linked, as reflected in the cardiac mechanics (LV twist and rotation and ventricular strain) that underpin ventricular function. In response to altered physiological demand, ventricular mechanics acutely change ( ...
Venous excess: a new approach to cardiovascular control and its
... blood enters the right atrium and is delivered in each cycle into the ventricle; rather, it prevents accumulation by guaranteeing that this volume is expelled. In the laboratory, we can manipulate this volume in different ways. We may alter the driving pressure, which, if the return resistance is sm ...
... blood enters the right atrium and is delivered in each cycle into the ventricle; rather, it prevents accumulation by guaranteeing that this volume is expelled. In the laboratory, we can manipulate this volume in different ways. We may alter the driving pressure, which, if the return resistance is sm ...
anomalous left coronary artery arising from pulmonary - Heart
... the adequacy of perfusion adversely is the desaturation of the pulmonary arterial blood. Presumably about 80 per cent of subjects with this anomaly, after a normal neonatal period, reach a point where perfusion of the left coronary artery vascular bed is so poor that symptoms and signs of myocardial ...
... the adequacy of perfusion adversely is the desaturation of the pulmonary arterial blood. Presumably about 80 per cent of subjects with this anomaly, after a normal neonatal period, reach a point where perfusion of the left coronary artery vascular bed is so poor that symptoms and signs of myocardial ...
Second Heart Sound in Pulmonary Hypertension - Heart
... From St. George's Hospital, London S.W.1 A total of 116 patients with pulmonary hypertension The clinical diagnosis of pulmonary hypertension may be difficult. Atrial systolic ('a') waves in the was studied and divided into 6 main groups (Table I). venous pulse are an inconstant finding; abnormal of ...
... From St. George's Hospital, London S.W.1 A total of 116 patients with pulmonary hypertension The clinical diagnosis of pulmonary hypertension may be difficult. Atrial systolic ('a') waves in the was studied and divided into 6 main groups (Table I). venous pulse are an inconstant finding; abnormal of ...
anomalous left coronary artery arising from pulmonary - Heart
... the adequacy of perfusion adversely is the desaturation of the pulmonary arterial blood. Presumably about 80 per cent of subjects with this anomaly, after a normal neonatal period, reach a point where perfusion of the left coronary artery vascular bed is so poor that symptoms and signs of myocardial ...
... the adequacy of perfusion adversely is the desaturation of the pulmonary arterial blood. Presumably about 80 per cent of subjects with this anomaly, after a normal neonatal period, reach a point where perfusion of the left coronary artery vascular bed is so poor that symptoms and signs of myocardial ...
Contribution of Endothelin to Coronary Vasomotor Tone - AJP
... acute myocardial infarction (MI). Consequently, MI is becoming an increasingly important risk factor for the development of congestive heart failure (2). The loss of viable myocardial tissue and the consequent left ventricular dysfunction results in neurohumoral activation which, in conjunction with ...
... acute myocardial infarction (MI). Consequently, MI is becoming an increasingly important risk factor for the development of congestive heart failure (2). The loss of viable myocardial tissue and the consequent left ventricular dysfunction results in neurohumoral activation which, in conjunction with ...
Diagnosis and Management of Common Types of
... SVT occasionally causes a wide QRS complex (0.12 seconds or more) if associated with a bundle branch block or an accessory pathway. In patients with coronary artery disease or a history of myocardial infarction, a wide QRS complex suggests possible ventricular tachyarrhythmia. Because of the paroxys ...
... SVT occasionally causes a wide QRS complex (0.12 seconds or more) if associated with a bundle branch block or an accessory pathway. In patients with coronary artery disease or a history of myocardial infarction, a wide QRS complex suggests possible ventricular tachyarrhythmia. Because of the paroxys ...
cardiac imaging guidelines - Chapter Affairs Extranet
... inherited disease with syncope and rhythm disturbances, including sudden death, as presenting manifestations BNP: B-type natriuretic peptide, blood test used to diagnose and track heart failure (n-T-pro-BNP is a variant of this test) Brugada Syndrome: an electrocardiographic pattern that is unique a ...
... inherited disease with syncope and rhythm disturbances, including sudden death, as presenting manifestations BNP: B-type natriuretic peptide, blood test used to diagnose and track heart failure (n-T-pro-BNP is a variant of this test) Brugada Syndrome: an electrocardiographic pattern that is unique a ...
Circa- and ultradians in the occurrence of simple extrasystoles in
... to some other studies (e.g. 9, 13, 20, 22). In those studies were displayed also long pauses, multiform extrasystoles, bigeminy or ventricular tachycardia in very old persons. But no attempts to exclude silent myocardial ischaemia can be fully successful. Only a few publications can be compared with ...
... to some other studies (e.g. 9, 13, 20, 22). In those studies were displayed also long pauses, multiform extrasystoles, bigeminy or ventricular tachycardia in very old persons. But no attempts to exclude silent myocardial ischaemia can be fully successful. Only a few publications can be compared with ...
NORMAL VARIATIONS AND THE INTERRELATIONS BETWEEN
... in the peripheral capillaries, at least of the skin (14), and that the alveolar spaces are, from the point of view of hydrodynamic-osmotic relationships, well protected against the development of pulmonary edema. The pulmonary "capillary" pressure approximated the diastolic pressure in the pulmonary ...
... in the peripheral capillaries, at least of the skin (14), and that the alveolar spaces are, from the point of view of hydrodynamic-osmotic relationships, well protected against the development of pulmonary edema. The pulmonary "capillary" pressure approximated the diastolic pressure in the pulmonary ...
BAJ Reddi and RHS Carpenter
... blood enters the right atrium and is delivered in each cycle into the ventricle; rather, it prevents accumulation by guaranteeing that this volume is expelled. In the laboratory, we can manipulate this volume in different ways. We may alter the driving pressure, which, if the return resistance is sm ...
... blood enters the right atrium and is delivered in each cycle into the ventricle; rather, it prevents accumulation by guaranteeing that this volume is expelled. In the laboratory, we can manipulate this volume in different ways. We may alter the driving pressure, which, if the return resistance is sm ...
Modeling left ventricular diastolic dysfunction: classification and key
... left ventricular stroke volume (LVSV) and cardiac output (CO) within the setting of LVDD, we repeated these simulations after first increasing the gain of the LV end-systolic pressure-volume relationship (ELV,ES and ESPT,ES) by 60%. If the diastolic stiffness of the muscle fibers of the wall increas ...
... left ventricular stroke volume (LVSV) and cardiac output (CO) within the setting of LVDD, we repeated these simulations after first increasing the gain of the LV end-systolic pressure-volume relationship (ELV,ES and ESPT,ES) by 60%. If the diastolic stiffness of the muscle fibers of the wall increas ...
Cardiac Auscultation: Rediscovering the Lost Art
... (eg, fourth heart sound [S4] or third heart sound [S3] gallops, diastolic rumble of mitral stenosis [MS]). The diaphragm, when pressed firmly against the chest wall, will accentuate high-pitched auscultatory events (eg, diastolic murmur of aortic regurgitation [AR], pericardial friction rub). A thir ...
... (eg, fourth heart sound [S4] or third heart sound [S3] gallops, diastolic rumble of mitral stenosis [MS]). The diaphragm, when pressed firmly against the chest wall, will accentuate high-pitched auscultatory events (eg, diastolic murmur of aortic regurgitation [AR], pericardial friction rub). A thir ...
Effects of moderate heart failure and functional overload on rat
... was infarcted vs. the amount noninfarcted was then calculated from these measurements. Western blotting for SERCA. SERCA isoform determination was performed according to Kandarian et al. (12). The proteins were electrophoretically separated on 7.5% SDSpolyacrylamide gels (13). They were then transfe ...
... was infarcted vs. the amount noninfarcted was then calculated from these measurements. Western blotting for SERCA. SERCA isoform determination was performed according to Kandarian et al. (12). The proteins were electrophoretically separated on 7.5% SDSpolyacrylamide gels (13). They were then transfe ...
Right Ventricular Ejection Fraction Angiography
... In general, three or four cardiac cycles were used for deriving the ejection fraction. In five patients, ejection fraction was calculated from only two beats. In each patient, the values obtained from the beats analyzed were then averaged. To determine the effects of activity originating from other ...
... In general, three or four cardiac cycles were used for deriving the ejection fraction. In five patients, ejection fraction was calculated from only two beats. In each patient, the values obtained from the beats analyzed were then averaged. To determine the effects of activity originating from other ...
The Sequence of Normal Recovery of Excitability in the
... determined from the same electrode sites. The example shown is representative of findings in other experiments with respect to major features of the orders of excitation and recovery and their relation to each other. Endocardial and intramural recovery sequence in the left ventricle was investigated ...
... determined from the same electrode sites. The example shown is representative of findings in other experiments with respect to major features of the orders of excitation and recovery and their relation to each other. Endocardial and intramural recovery sequence in the left ventricle was investigated ...
Alternative venous drainage of heart ventricles in rabbits
... Utilization of New Zealand White rabbits for experiments can be suitable including cardiologic procedures, in vitro as well as in situ testing of myocardial infarction, or in a series of electrophysiological interventional procedures (Ytrehus et al. 1994; Yoldas & Nur 2012). The anatomical relations ...
... Utilization of New Zealand White rabbits for experiments can be suitable including cardiologic procedures, in vitro as well as in situ testing of myocardial infarction, or in a series of electrophysiological interventional procedures (Ytrehus et al. 1994; Yoldas & Nur 2012). The anatomical relations ...
Atenolol - University of Vermont
... SUMMARY The physiology, pharmacokinetics and efficacy of atenolol, a cardioselective,-adrenergic blocking agent, were evaluated in 10 patients with stable angina pectoris in a single-blind, dose-ranging study. After a 1-month control placebo period, atenolol was administered once daily at dosages of ...
... SUMMARY The physiology, pharmacokinetics and efficacy of atenolol, a cardioselective,-adrenergic blocking agent, were evaluated in 10 patients with stable angina pectoris in a single-blind, dose-ranging study. After a 1-month control placebo period, atenolol was administered once daily at dosages of ...
Echocardiographic Assessment of Cardiac Anatomy
... study of hypertensive subjects. The results of these studies have suggested that increases in left atrial dimension' and left ventricular wall thickness'"3 and decreases in closing velocity (E-F slope) of the anterior leaflet of the mitral valve3 occur frequently even in the absence of other signs o ...
... study of hypertensive subjects. The results of these studies have suggested that increases in left atrial dimension' and left ventricular wall thickness'"3 and decreases in closing velocity (E-F slope) of the anterior leaflet of the mitral valve3 occur frequently even in the absence of other signs o ...
Left Ventricular Volume and Function Assessment: A Comparison
... echocardiographic data was more apparent when comparing the RAO projection with the LAO view. The results (mean difference with 2D echocardiography) for the LVESV or the LVEF were comparable between the angiographic projections. This stands in contrast with the Habash-Bseiso et al. (7) study, in whi ...
... echocardiographic data was more apparent when comparing the RAO projection with the LAO view. The results (mean difference with 2D echocardiography) for the LVESV or the LVEF were comparable between the angiographic projections. This stands in contrast with the Habash-Bseiso et al. (7) study, in whi ...
Left Ventricular Volume and Function Assessment: A Comparison
... echocardiographic data was more apparent when comparing the RAO projection with the LAO view. The results (mean difference with 2D echocardiography) for the LVESV or the LVEF were comparable between the angiographic projections. This stands in contrast with the Habash-Bseiso et al. (7) study, in whi ...
... echocardiographic data was more apparent when comparing the RAO projection with the LAO view. The results (mean difference with 2D echocardiography) for the LVESV or the LVEF were comparable between the angiographic projections. This stands in contrast with the Habash-Bseiso et al. (7) study, in whi ...
Mechanical Interactions between Four Heart Chambers with and
... of ventricular pressure-volume relationships. The interactions investigated were those between (1) the atrium and the ventricle, (2) the right ventricle and left ventricles, (3) the atrium and one ventricle vs. the other ventricle, and finally (4) the left and right atrium and the right ventricle vs ...
... of ventricular pressure-volume relationships. The interactions investigated were those between (1) the atrium and the ventricle, (2) the right ventricle and left ventricles, (3) the atrium and one ventricle vs. the other ventricle, and finally (4) the left and right atrium and the right ventricle vs ...
Effect of Baseline and Changes in Systolic Blood Pressure Over
... stable New York Heart Association class II-IV HF for at least 3 months and who had a left ventricular (LV) ejection fraction ⬍40% and LV internal dimension in diastole/body surface area ⬎2.9 cm/m2 on echocardiography were eligible. All patients had to be receiving stable pharmacological treatment fo ...
... stable New York Heart Association class II-IV HF for at least 3 months and who had a left ventricular (LV) ejection fraction ⬍40% and LV internal dimension in diastole/body surface area ⬎2.9 cm/m2 on echocardiography were eligible. All patients had to be receiving stable pharmacological treatment fo ...
Normalization of the EKG in patients with right bundle branch block
... kami ajukan dalam tulisan ini. (J Kardiol Indones. 2010;31:206-11) Kata kunci: pemacuan RV, RBBB, normalisasi QRS. ...
... kami ajukan dalam tulisan ini. (J Kardiol Indones. 2010;31:206-11) Kata kunci: pemacuan RV, RBBB, normalisasi QRS. ...
Heart failure
![](https://commons.wikimedia.org/wiki/Special:FilePath/Heartfailure.jpg?width=300)
Heart failure (HF), often referred to as congestive heart failure (CHF), occurs when the heart is unable to pump sufficiently to maintain blood flow to meet the body's needs. The terms chronic heart failure (CHF) or congestive cardiac failure (CCF) are often used interchangeably with congestive heart failure. Signs and symptoms commonly include shortness of breath, excessive tiredness, and leg swelling. The shortness of breath is usually worse with exercise, while lying down, and may wake the person at night. A limited ability to exercise is also a common feature.Common causes of heart failure include coronary artery disease including a previous myocardial infarction (heart attack), high blood pressure, atrial fibrillation, valvular heart disease, excess alcohol use, infection, and cardiomyopathy of an unknown cause. These cause heart failure by changing either the structure or the functioning of the heart. There are two main types of heart failure: heart failure due to left ventricular dysfunction and heart failure with normal ejection fraction depending on if the ability of the left ventricle to contract is affected, or the heart's ability to relax. The severity of disease is usually graded by the degree of problems with exercise. Heart failure is not the same as myocardial infarction (in which part of the heart muscle dies) or cardiac arrest (in which blood flow stops altogether). Other diseases that may have symptoms similar to heart failure include obesity, kidney failure, liver problems, anemia and thyroid disease.The condition is diagnosed based on the history of the symptoms and a physical examination with confirmation by echocardiography. Blood tests, electrocardiography, and chest radiography may be useful to determine the underlying cause. Treatment depends on the severity and cause of the disease. In people with chronic stable mild heart failure, treatment commonly consists of lifestyle modifications such as stopping smoking, physical exercise, and dietary changes, as well as medications. In those with heart failure due to left ventricular dysfunction, angiotensin converting enzyme inhibitors or angiotensin receptor blockers along with beta blockers are recommended. For those with severe disease, aldosterone antagonists, or hydralazine plus a nitrate may be used. Diuretics are useful for preventing fluid retention. Sometimes, depending on the cause, an implanted device such as a pacemaker or an implantable cardiac defibrillator may be recommended. In some moderate or severe cases cardiac resynchronization therapy (CRT) may be suggested or cardiac contractility modulation may be of benefit. A ventricular assist device or occasionally a heart transplant may be recommended in those with severe disease despite all other measures.Heart failure is a common, costly, and potentially fatal condition. In developed countries, around 2% of adults have heart failure and in those over the age of 65, this increases to 6–10%. In the year after diagnosis the risk of death is about 35% after which it decreases to below 10% each year. This is similar to the risks with a number of types of cancer. In the United Kingdom the disease is the reason for 5% of emergency hospital admissions. Heart failure has been known since ancient times with the Ebers papyrus commenting on it around 1550 BCE.