Left ventricular filling dynamics: influence of left ventricular relaxation and left atrial pressure.
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منابع مشابه
VENTRICULAR PERFORMANCE Left ventricular filling dynamics : influence of left ventricular relaxation and left atrial pressure
Peak rapid filling rate (PRFR) is often used clinically as an index of left ventricular relaxation, i.e., of early diastolic function. This study tests the hypothesis that early filling rate is a function of the atrioventricular pressure difference and hence is influenced by the left atrial pressure as well as by the rate of left ventricular relaxation. As indexes, we chose the left atrial pres...
متن کاملLeft ventricular filling dynamics: influence of left ventricular relaxation and left atrial pressure.
Peak rapid filling rate (PRFR) is often used clinically as an index of left ventricular relaxation, i.e., of early diastolic function. This study tests the hypothesis that early filling rate is a function of the atrioventricular pressure difference and hence is influenced by the left atrial pressure as well as by the rate of left ventricular relaxation. As indexes, we chose the left atrial pres...
متن کاملAltered left atrial compliance after atrial appendectomy. Influence on left atrial and ventricular filling.
Previous studies have shown regional differences in atrial distensibility. We studied 12 open-chest dogs to test the hypothesis that left atrial compliance is decreased after removal of the left atrial appendage and to determine the effect of altered atrial compliance on atrial reservoir and conduit function. Sonomicrometer crystal pairs were used to measure the long- and short-axis diameters o...
متن کاملImpact of Atrial Fibrillation Ablation on Left Ventricular Filling Pressure and Left Atrial Remodeling
BACKGROUND Left ventricular (LV) diastolic dysfunction is associated with new-onset atrial fibrillation (AF), and the estimation of elevated LV filling pressures by E/e' ratio is related to worse outcomes in patients with AF. However, it is unknown if restoring sinus rhythm reverses this process. OBJECTIVE To evaluate the impact of AF ablation on estimated LV filling pressure. METHODS A tot...
متن کاملLeft atrial relaxation and left ventricular systolic function determine left atrial reservoir function.
BACKGROUND Determinants of left atrial (LA) reservoir function and its influence on left ventricular (LV) function have not been quantified. METHODS AND RESULTS In an open-pericardium, paced (70 and 90 bpm) pig model of LV regional ischemia (left anterior descending coronary constriction), with high-fidelity LV, LA, and RV pressure recordings, we obtained the LA area with 2D automated border ...
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ژورنال
عنوان ژورنال: Circulation
سال: 1986
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.74.1.187