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[Alcohol and rhythm disorders]
Y Hémery1, H Broustet, O Guiraudet
1Service de pathologie cardiovasculaire, HIA du Val-de-Grâce, 74, boulevard de Port-Royal, 75230 Paris, France. hemery@clubinternet.fr
Insights
Excessive alcohol consumption increases the risk of sudden cardiac death and arrhythmias, even in individuals without alcoholic cardiomyopathy. Alcohol withdrawal also poses a critical risk for ventricular arrhythmias.
Area of Science:
- Cardiology
- Toxicology
Context:
- Cardiovascular disease is a leading cause of mortality in chronic alcoholics.
- Excessive alcohol intake is strongly linked to sudden cardiac death.
- Ethanol's pro-arrhythmogenic effects contribute to cardiac arrhythmias.
Purpose:
- To highlight the association between alcohol consumption and cardiac arrhythmias.
- To emphasize the importance of considering alcohol's role in arrhythmias.
- To outline management strategies including detoxification and alcohol cessation.
Summary:
- Alcohol consumption, even in moderate amounts or in individuals without diagnosed alcoholic cardiomyopathy, is associated with an increased risk of cardiac arrhythmias.
- Ethanol can directly induce pro-arrhythmogenic effects, leading to potentially fatal events like sudden cardiac death.
- Management requires detoxification and sustained abstinence, with particular attention to the heightened risk of ventricular arrhythmias during alcohol withdrawal.
Impact:
- Clinicians should consider alcohol's role in all arrhythmia cases, regardless of cardiac health history.
- Raising awareness about alcohol-induced cardiac risks can improve patient outcomes.
- Further research into the mechanisms of alcohol's arrhythmogenic effects is warranted.
Abstract:
Cardiovascular disease is the main cause of mortality in chronic alcoholics. There is a clear association between excessive alcohol consumption and the risk of sudden cardiac death. The pro-arrhythmogenic effect of ethanol could be responsible for some of these cases of arrhythmia and sudden death in subjects with an alcoholic cardiomyopathy and also in those with an apparently normal heart. In any case of supraventricular or ventricular arrhythmia in a chronic alcoholic or in an occasional heavy drinker, the potential role of alcohol consumption in the initiation of these disorders should be considered. In all cases, patient management consists of detoxification and abstaining from alcohol consumption, but the withdrawal period is particularly critical as regards the risk of ventricular arrhythmias.