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Circulation, Vol 68, 1194-1200, Copyright © 1983 by American Heart Association

ARTICLES

Human myocardial histologic characteristics in congestive heart failure

DV Unverferth, JK Fetters, BJ Unverferth, CV Leier, RD Magorien, AR Arn and PB Baker

The purpose of this study was to identify the histologic characteristics of human myocardium in congestive heart failure (CHF) by cellular hypertrophy, nuclear area, endocardial thickness, and percentage of fibrosis and to correlate histologic findings to cause, severity, and duration of disease. Right ventricular endomyocardial biopsies from 109 patients were quantitatively analyzed. Ten patients with normal cardiac history, physical examination results, and cardiac function served as the control group. The remaining patients were divided into the following groups: those treated with doxorubicin (n = 18), and those with chest pain with normal coronary arteries (n = 8), familial CHF (n = 3), CHF associated with myotonic dystrophy (n = 3), peripartal CHF (n = 2), valvular CHF (n = 9), alcohol-induced CHF (n = 13), postviral CHF (n = 6), or idiopathic CHF (n = 36). Linear regression analyses showed a strong correlation between cell diameter and nuclear area (r = .70, p less than .001) and weaker correlations between amount of fibrosis and cell diameter (r = .30, p less than .005) and fibrosis and nuclear area (r = .29, p less than .005). Results of function studies and histologic measurements (e.g., echocardiographically measured change in the minor-axis dimension of the left ventricle with systole and cell diameter) correlated poorly (r = -.33, p less than .005). Duration of dyspnea did not correlate with any histologic factor. Within the normal group there was a direct correlation of cell diameter with age (r = .67, p less than .05).(ABSTRACT TRUNCATED AT 250 WORDS)

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