Effects of Cardiac Versus Circulatory Angiotensin-Converting Enzyme Inhibition on Left Ventricular Diastolic Function and Coronary Blood Flow in Hypertrophic Obstructive Cardiomyopathy

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Abstract

Background

Left ventricular (LV) diastolic function and coronary flow are impaired in hypertrophic obstructive cardiomyopathy (HOCM). This study was designed to evaluate the impact of cardiac and circulatory ACE inhibition on such derangements.

Conclusions

Activation of the cardiac renin-angiotensin system contributes to LV diastolic dysfunction as well as to the decreased coronary blood flow and coronary flow reserve in HOCM. Cardiac ACE inhibition restores and circulatory ACE inhibition aggravates the above derangements. (Circulation. 1998;97:1342-1347.)

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