PMID: 8582183Jun 1, 1995Paper

Effects of verapamil on left ventricular diastolic dysfunction

Zhonghua nei ke za zhi
J FanM Zhang

Abstract

To assess the effects of verapamil on left ventricular relaxation and filling dynamics in patients with left ventricular diastolic dysfunction (LVDD), Doppler echocardiography (DE) and cardiac catheterization (Cath) were simultaneously performed in 30 cases with LVDD. The left ventricular filling and relaxation indices were measured with DE and Cath respectively, before and after intravenous injection of verapamil. The result showed that after verapamil injection all left ventricular filling measured with DE were significantly improved in all cases, while left ventricular relaxation indices showed significant improvement only in patients with hypertrophic cardiomyopathy and hypertensive heart disease but no changes in patients with old myocardial infarction. There were no significant correlations between left ventricular filling and relaxation indices. It is concluded that the major mechanism of left ventricular filling improvement induced by verapamil is the reduction of left ventricular afterload and verapamil has different therapeutic effects on LVDD with different etiology.

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