HEMODYNAMIC CORRELATION WITH PHONOCARDIOGRAM IN AORTIC INSUFFICIENCY

概要

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Phonocardiographic, hemodynamic and angiocardiographic study in thirty two patients with isolated aortic insufficiency or accompanied by other valvular lesions or congenital defects were carried out with special reference to the correlation between configuration of the diastolic murmur and regurgi-tant percent, and between Q-1 interval and end-diastolic volume of the left ventricle. 1. Regurgitant percent may be assumed as the 'most adequate index of the severity of aortic insufficiency. No correlation was found between regurgi-tant percent and diastolic pressure or pulse pressure of the aorta. 2. The interval between second heart sound and maximum amplitude of the diastolic murmur, and between the maximum amplitude and half of it correlated significantly with regurgitant percent, the former more significantly. 3. Q-1 interval was correlated with end-diastolic volume and electrical mechanical interval. Q-1 interval had no correlation with total ventricular activation time. Therefore, prolongation of the Q-1 interval in aortic insuffici-ency may be due to the prolongation of the electrical mechanical interval.
社団法人日本循環器学会の論文
1972-12-20