Alcohol consumption and prognosis in patients with left ventricular systolic dysfunction after a myocardial

David Aguilar1, Hicham Skali, Lemuel A Moyé

  • 1Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA. david.aguilar@uth.tmc.edu

Insights

For patients with left ventricular dysfunction after myocardial infarction, light-to-moderate alcohol intake did not significantly alter the risk of developing heart failure. This finding holds true whether alcohol consumption was measured at baseline or three months post-myocardial infarction.

Area of Science:

  • Cardiology
  • Clinical Research
  • Public Health

Background:

  • Alcohol consumption is linked to cardiodepressant effects, contrasting with its potential protective role in coronary heart disease.
  • Alcohol intake is generally considered contraindicated in patients diagnosed with heart failure (HF).

Purpose of the Study:

  • To evaluate the impact of alcohol consumption on the development of symptomatic heart failure (HF).
  • To assess this influence in patients experiencing left ventricular (LV) dysfunction subsequent to a myocardial infarction (MI).

Main Methods:

  • Utilized data from the Survival And Ventricular Enlargement (SAVE) trial, involving 2231 patients with LV ejection fraction (EF) <40% post-MI.
  • Patients were categorized into nondrinkers, light-to-moderate drinkers (1-10 drinks/week), and heavy drinkers (>10 drinks/week) based on baseline alcohol intake.
  • The primary endpoint was hospitalization for HF or initiation of open-label angiotensin-converting enzyme inhibitor therapy; analysis was repeated with data from three months post-MI.

Main Results:

  • Univariate analysis indicated that light-to-moderate baseline alcohol intake was associated with a lower incidence of HF compared to nondrinkers (HR 0.71).
  • Heavy drinking showed no significant association with HF incidence (HR 0.91).
  • After adjusting for baseline characteristics, light-to-moderate alcohol consumption did not significantly influence HF development (HR 0.93), and heavy drinking was associated with a potential increase in risk (HR 1.25). Alcohol intake at three months post-MI also did not modify adverse outcomes.

Conclusions:

  • Light-to-moderate alcohol intake, whether assessed at baseline or three months post-MI, did not alter the risk of developing heart failure in patients with LV dysfunction after myocardial infarction.
  • The findings suggest that moderate alcohol consumption does not significantly impact HF risk in this specific patient population.
Abstract

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