نتایج جستجو برای: atrial function
تعداد نتایج: 1290925 فیلتر نتایج به سال:
The goal of the study was to define the effect of chronic unloading of the normal heart on atrial endocrine function with a focus on brain natriuretic peptide (BNP), specifically addressing the role of load and neurohumoral stimulation. Although produced primarily by atrial myocardium in the normal heart, controversy persists with regard to load-dependent vs. neurohumoral mechanisms controlling...
conclusions diagnosis of tachycardia-induced cardiomyopathy in children is important, since appropriate treatment improves the prognosis. every child with recurrent and persistent palpitation with the first episode of congestive heart failure should be evaluated for tachycardia- induced cardiomyopathy. introduction tachycardia-induced cardiomyopathy (tic) is a ventricular dysfunction secondary ...
Background and Objective: Atrial fibrillation is the most prevalent arrhythmia, accompanied with some adverse complications, after coronary artery bypass graft surgery. The purpose of this study was to investigate the role of psychological risk factors, as well as age and gender for the incidence of atrial fibrillation after coronary artery bypass graft surgery. Materials and Methods: In this r...
Background: Plasma concentrations of atrial natriuretic peptides are correlated with atrial pressures, as are left ventricular ejection fraction and left ventricular filling abnormalities. Aims: This study investigated the relation of atrial natriuretic peptides to both left ventricular systolic and diastolic function in heart failure. Methods: Plasma concentrations of atrial natriuretic peptid...
BACKGROUND The importance of the contribution of atrial systole to ventricular filling in mitral stenosis is controversial. The cause of reduced cardiac output following the onset of atrial fibrillation may be due to an increased heart rate, a loss of booster pump function, or both. METHODS AND RESULTS We studied the atrial contribution to filling under a variety of conditions by combining no...
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