Left atrial contribution to ventricular filling during the course of evolving heart failure.
نویسندگان
چکیده
منابع مشابه
Left atrial contribution to ventricular filling during the course of evolving heart failure.
BACKGROUND Abnormal left ventricular (LV) filling has been observed in patients with heart failure and is characterized by marked heterogeneity of mitral inflow velocity. In the present study, the contribution of the left atrium to LV filling was examined in eight dogs during the course of evolving heart failure. METHODS AND RESULTS Heart failure was produced by multiple sequential intracoron...
متن کاملMechanism of altered patterns of left ventricular filling during the development of congestive heart failure.
BACKGROUND The mechanism of the alterations in the pattern of left ventricular (LV) filling during the development of congestive heart failure (CHF) is not fully understood. METHODS AND RESULTS We studied six conscious dogs instrumented to measure LV and left atrial (LA) pressures and LV volume as CHF was induced by rapid pacing. Diastolic filling dynamics were serially measured over 4 weeks ...
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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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We studied the contribution of phasic left atrial (LA) function to left ventricular (LV) filling during exercise. We hypothesized that reduced LV filling time at moderate-intensity exercise limits LA passive emptying and increases LA active emptying. Twenty endurance-trained males (55 ± 6 yr) were studied at rest and during light- (∼100 beats/min) and moderate-intensity (∼130 beats/min) exercis...
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Dear editor Regarding the duration of supplement therapy in our study which has been published in the Avicenna J Phytomed, 2019; 9(1): 1-9, “The effects of curcumin on the prevention of atrial and ventricular arrhythmias and heart failure in patients with unstable angina” (Dastani et al., 2019), some critical flaws has been mentioned. Primarily, we are grateful for the consi...
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ژورنال
عنوان ژورنال: Circulation
سال: 1992
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.86.4.1317