Abstract 10284: Alcohol Consumption and Cardiovascular Outcomes in Patients With Atrial Fibrillation; a RE-LY AF Registry Analysis
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abstract
Introduction:
The role of alcohol intake in patients with atrial fibrillation (AF) has been long debated. We aim to assess the association between different alcohol intake levels and cardiovascular outcomes in patients with AF.
Methods:
We performed a cross-sectional analysis of the RE-LY AF registry, which included 15,400 AF patients who visited emergency departments across 46 countries and were followed for one year after the baseline visit. Alcohol intake level was retrospectively ascertained and categorized into abstainers, light (<7 standard drinks [SD]/week), moderate (7-13 SD/week), and heavy drinkers (≥14 SD/week) based on self-reported intake levels. The outcomes of interest were stroke/systemic embolism, heart failure (HF) hospitalization, all-cause mortality, and major bleeding events. Logistic mixed-effects regression models adjusted for baseline covariates were used to calculate the adjusted odds ratios (aOR) and 95% confidence intervals (CI).
Results:
A total of 14,058 AF patients (mean age: 65.9 years; 48% women) with available data on alcohol intake level were included. The odds of stroke/systemic embolism were not significantly increased in light (aOR 0.87, 95% CI: 0.60-1.26), moderate (aOR 0.92, 95% CI: 0.54-1.58), nor heavy drinkers (aOR 0.76, 95% CI: 0.39-1.49) compared to abstainers. Light and moderate drinking, compared to alcohol abstinence, were associated with reduced odds of HF hospitalization (light: aOR 0.75, 95% CI: 0.59-0.95; moderate: aOR 0.57, 95% CI: 0.38-0.85) and all-cause mortality (light: aOR 0.42, 95% CI: 0.30-0.58; moderate: aOR 0.42, 95% CI: 0.26-0.68; heavy: aOR 0.58, 95% CI: 0.35-0.97). Alcohol consumption was not associated with an excess risk of major bleeding events.
Conclusion:
As compared to non-drinkers, light and moderate alcohol drinking in patients with AF are associated with a lower risk of mortality and HF hospitalization, with no difference in thromboembolic and bleeding risk.
