1971 Volume 35 Issue 6 Pages 623-631
In fourteen patients with aortic insufficiency, the interrelations among the systolic time intervals and other hemodynamic measurements were studied by means of cardiac catheterization and angiocardiography. The pre-ejection period was within the normal range in nine patients. The left ventricular ejection time and the total electromechanical systole were prolonged above normal in almost all the patients. The left ventricular ejection time corrected for heart rate exhibited a close inverse relationship to both the ejection fraction and the mean shortening velocity per unit length of the myocardium. These findings suggest that the left ventricular ejection time can be a non-invasive aid of clinical use in evaluating the left ventricular function in patients with aoric insufficiency.
