Korean Circ J.  1982 Dec;12(2):181-186. 10.4070/kcj.1982.12.2.181.

Hemodynamic Effect of Prazosin in Congestive Heart Failure

• Jeong JW
• Kwon H
• Yang DH
• Lee SM
• Kang JC
• Park OK

• KMID: 2040187
• DOI: http://doi.org/10.4070/kcj.1982.12.2.181

Abstract

The hemodynamic effects of Prazosin were evaluated in 31 cases with congestive heart failure (mitral stenosis; 15 cases, mitral insufficiency; 7 cases, hypertensive heart disease;4 cases, congestive cardiomyopathy; 5 cases) by means of echocardiographic method. Before and 90 min. after the administration of prazosin(3mg p.o.), M-mode echocardiograms of left ventricle were recorded, from which end-diastolic and end-systolic dimensions of left ventricle and left ventricular ejection time were measured. Hemodynamic parameters of left ventricular performance, i.e., mean veloity of circumferential fiber shortening, fractional fiber shortening, ejection fraction, stroke volume, and cardiac output were calculated from the measurements. Left ventricular end-diastolic and end-systolic dimensions were decreased significantly after prazosin administration and left ventricular performance was significantly increased after prazosin administration, whereas stroke volume was not. Total systemic peripheral resistance and mean arterial pressure showed no significant changes. All cases, except one of the patients showed marked symptomatic relief after prazosin administration evaluated by NYHA functional classification. There was no considerable untoward effect in the patients of congestive heart failure to whom the prazosin was administered.

MeSH Terms

Arterial Pressure
Cardiac Output
Cardiomyopathy, Dilated
Classification
Constriction, Pathologic
Echocardiography
Estrogens, Conjugated (USP)*
Heart
Heart Failure*
Heart Ventricles
Hemodynamics*
Humans
Mitral Valve Insufficiency
Prazosin*
Stroke Volume
Vascular Resistance
Estrogens, Conjugated (USP)
Prazosin