Abstract
While alcohol consumption is implicated in the development of aortic dissection, the impact of alcohol use disorder (AUD) on the outcomes of type A aortic dissection (TAAD) repair is still largely unexplored. This study aimed to conduct a comprehensive, population-based analysis of effect of AUD on in-hospital outcomes following TAAD repair using National/Nationwide Inpatient Sample, the largest all-payer database in the United States. Patients undergoing TAAD repair were identified in National/Nationwide Inpatient Sample from Q4 2015-2020. Demographics, comorbidities, hospital characteristics, primary payer status, and transfer-in status between patients with and without AUD were matched by a 1:3 propensity-score matching. In-hospital outcomes were examined. There were 220 patients with AUD who underwent TAAD repair. Meanwhile, 4062 non-AUD patients went under TAAD repair, where 646 of them were matched to all AUD patients. After propensity-score matching, AUD patients had a lower risk of in-hospital mortality (7.76% vs 13.31%, P = 0.03) while there was no difference in transfer-in status or time from admission to operation. However, patients with AUD had a higher rate of respiratory complications (27.40% vs 19.66%, P = 0.02) and a longer hospital length of stay (16.20 ± 11.61 vs 11.72 ± 1.69days, P = 0.01). All other in-hospital outcomes were comparable between AUD and non-AUD patients. AUD patients had a lower risk of in-hospital mortality but a higher rate of respiratory complications and a longer LOS. These findings can provide insights into preoperative risk stratification of these patients. Nonetheless, reasons underlying the lower mortality rate in AUD patients and their long-term prognosis require further investigation.
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