Abstract:Experimental studies were carried out in 11 anesthetized pigs in order to compare the sensitivity of left ventricular ejection phase parameters as determined by quantitative angiocardiographic methods, for detection of mild or moderate ventricular dysfunction. The experimental setup implied various degrees of nonadequate muscular hypertrophy in relation to chronic volume overload by aortic insufficiency. Left ventricular stroke volume, flow, ejection fraction and mean circumferential fiber shortening did not d… Show more
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