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Published on: November 15, 2024
Alcohol and Heart Failure
Debar Rasoul1,2, Ashwin Ajay1, Alend Abdullah3
1Cardiology Department, Liverpool University Hospitals NHS Foundation Trust Liverpool, UK.
Insights
Alcohol consumption poses global health risks, linked to numerous conditions. Moderate intake may offer heart protection, but excessive use can cause cardiac issues like alcoholic cardiomyopathy.
Area of Science:
- Cardiology
- Public Health
- Toxicology
Background:
- Alcohol is a widely consumed toxic substance, impacting global health.
- Alcohol use is a significant risk factor for over 60 acute and chronic diseases.
- Its relationship with cardiovascular disease is complex, with both risks and potential benefits.
Purpose of the Study:
- To explore the potential cardiac benefits of alcohol consumption.
- To examine the association between alcohol use and alcoholic cardiomyopathy.
- To review the epidemiology, clinical features, and management of alcoholic cardiomyopathy.
Main Methods:
- This is a review article.
- It synthesizes existing research on alcohol's effects on the heart.
- Focuses on cohort studies and the impact of varying consumption levels.
Main Results:
- Chronic excessive alcohol intake is linked to cardiac issues like hypertension, arrhythmias, and heart failure.
- Low-level alcohol consumption may have a protective effect against ischemic heart disease and diabetes.
- A threshold effect of alcohol on heart health is suggested, possibly influenced by genetic predisposition.
Conclusions:
- Alcohol's impact on cardiovascular health is dose-dependent and complex.
- Excessive consumption leads to alcoholic cardiomyopathy, while moderate intake might offer some protection.
- Understanding these nuances is crucial for public health strategies and clinical management.
Abstract:
Alcohol is the most frequently consumed toxic substance in the world and remains a major global public health issue, with one in three adults consuming it worldwide. Alcohol use is a leading risk factor for disease, contributing to over 60 acute and chronic health conditions, with a particularly complex association with cardiovascular disease. Chronic excessive alcohol consumption is associated with a range of cardiac complications, including decreased myocardial contractility, hypertension, arrhythmias, MI and heart failure. However, low-level alcohol consumption is believed to have a protective effect against ischaemic heart disease and diabetes. In most cohort studies, small to moderate amounts of alcohol consumption have not been linked to heart failure, indicating a threshold effect of alcohol with individual (possibly genetic) predisposition rather than a continuous effect of exposure. This review article explores the potential benefits of alcohol on the heart, the association between alcohol use and alcoholic cardiomyopathy and the epidemiology, clinical correlates and management of alcoholic cardiomyopathy.
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