Heavy drinking habits are associated with worse in-hospital outcomes in patients with acute coronary syndrome

Abstract

Abstract Introduction The association between alcohol consumption and the occurrence of coronary heart disease is well described in literature. Data regarding the impact of regular alcohol consumption on in-hospital outcomes in the setting of acute coronary syndrome (ACS) are lacking. Purpose We aimed to evaluate the impact of self-reported alcohol consumption on in-hospital outcomes in patients with ACS. Methods Data derived from patients enrolled between 2007 and 2019 in the Acute Myocardial Infarction in Switzerland (AMIS) Plus registry were retrospectively analyzed. The primary endpoint was all-cause in-hospital mortality, while secondary endpoints were set as incidence of major adverse cardiac and cerebrovascular events (MACCEs). Outcomes comparisons according to quantity of daily alcohol intake were also performed. Results Records concerning alcohol consumption were available in 25707 patients; 5298 of them (21%) fulfilled the criteria of regular alcohol consumption. Daily alcohol intake was reported in 4059 (77%), of these patients (regular drinkers) with 2640 light drinkers (≤2 drinks/day) and 1419 heavy drinkers (>2 drinks/day). Regular drinkers were predominantly male, younger, smokers, more comorbid and with a worse clinical presentation as compared to abstainers/occasional drinkers. In-hospital mortality and MACCEs of heavy drinkers were significantly higher compared to light drinkers (5.4% vs. 3.3% and 7.0% vs. 4.4%, both p=0.001). When tested together with GRACE risk score parameters, heavy alcohol consumption was independently associated to in-hospital mortality (p=0.004). Conclusions Heavy alcohol consumption is an additional independent predictor of in-hospital mortality in patients presenting with ACS. Figure 1. Study flowchart. Funding Acknowledgement Type of funding source: Other. Main funding source(s): Swiss Heart Foundation