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Risk Factors in Alcoholic Cardiomyopathy

Cardiology Division, University of Miami School of Medicine and The Reed Institute, Miami, Florida

Robert J. Wright, II

Cardiology Division, University of Miami School of Medicine and The Reed Institute, Miami, Florida

John W. Caldwell

Cardiology Division, University of Miami School of Medicine and The Reed Institute, Miami, Florida

Although a relationship has been suggested between abstinence from alcohol and improvement in left ventricular (LV) function, no long-term studies in large groups of patients have been done to confirm this impression or to demonstrate an effect on survival. To address these questions, the authors analyzed the out come in 105 male patients with alcoholic cardiomyopathy and 64 control male patients with nonalcoholic dilated cardiomyopathy. Survival data were available for all patients. The correlates of survival were assessed via the Cox propor tional hazards model. Variables considered were age, race, drinking pattern (current drinker versus former drinker), presence of coronary artery disease (CAD), hypertension, and diabetes, and these echo variables: left atrial (LA) size, posterior wall thickness, LV end diastolic dimension (LVDD), minimal E point septal separation, wall motion, presence of incomplete mitral leaflet clo sure (IMLC) or low cardiac output, and the ratio of relative wall thickness to LVDD. The two study groups were comparable with respect to all echocardio graphic variables. At a mean follow-up of 17.2 months ± 12.1 months, 42.85% of the alcoholics and 41% of the nonalcoholics had died. Nonsurvival in the alcoholic group was significantly associated with only two factors: an increased LVDD and the presence of IMLC. The drinking pattern was not significantly associated with survival. By contrast, in the nonalcoholics, the variables most closely related to survival were LVDD, low cardiac output, increasing age, and abnormal wall motion. Therefore: (1) the risk factors in alcoholic and nonalco holic cardiomyopathy are similar although IMLC appears to be a relatively specific prognostic factor for alcoholic cardiomyopathy and (2) abstinence from alcohol does not appear to improve survival.

Angiology, Vol. 40, No. 4, 270-275 (1989)
DOI: 10.1177/000331978904000405


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