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Updated: Jun 21, 2025

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Alcohol and Atrial Fibrillation: An Update and New Perspectives.

Marsha Hatley1, Truong Lam2, Ijeoma Ekeruo1

  • 1Division of Cardiovascular Medicine, Department of Internal Medicine, McGovern Medical School at The University of Texas Health Science Center at Houston.

The American Journal of Medicine
|July 6, 2024
PubMed
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Alcohol consumption is linked to heart disease, with atrial fibrillation potentially being the most visible sign. Research shows alcohol is a modifiable risk factor for heart conditions.

Keywords:
AlcoholArrhythmiaAtrial fibrillationEthanolHeart disease

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Area of Science:

  • Cardiology
  • Public Health

Background:

  • Alcohol (ethanol) consumption is increasing globally.
  • Ethanol is a known risk factor for heart disease.
  • The relationship between alcohol and atrial fibrillation (AF) is complex and debated.

Purpose of the Study:

  • To review the association between alcohol consumption and atrial fibrillation.
  • To propose that AF is a manifestation of broader alcohol-associated heart disease.
  • To identify factors that promote alcohol-triggered AF.

Main Methods:

  • Literature review of studies on ethanol's effects on the heart.
  • Analysis of research on moderate alcohol intake (French paradox) and binge drinking (holiday heart syndrome).
  • Synthesis of evidence linking cardiovascular risk factors to alcohol-induced AF.

Main Results:

  • Studies on ethanol and heart health yield inconsistent findings.
  • Hypertension, structural heart disease, neurohumoral stress, and cardiometabolic disorders facilitate alcohol-triggered AF.
  • Alcohol's role in AF development is influenced by pre-existing conditions.

Conclusions:

  • Atrial fibrillation may be the most apparent sign of alcohol-associated heart disease.
  • Alcohol should be classified as a modifiable risk factor for AF and general heart disease.
  • Further research is needed to clarify the complex relationship between alcohol and cardiovascular health.