RT Journal Article SR Electronic T1 Racial, ethnic and socioeconomic disparities in patients undergoing left atrial appendage closure JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1946 OP 1955 DO 10.1136/heartjnl-2020-318650 VO 107 IS 24 A1 Sparrow, Robbie A1 Sanjoy, Shubrandu A1 Choi, Yun-Hee A1 Elgendy, Islam Y A1 Jneid, Hani A1 Villablanca, Pedro A A1 Holmes, David R A1 Pershad, Ashish A1 Alraies, Chadi A1 Sposato, Luciano A A1 Mamas, Mamas A A1 Bagur, Rodrigo YR 2021 UL http://heart.bmj.com/content/107/24/1946.abstract AB Objective This manuscript aims to explore the impact of race/ethnicity and socioeconomic status on in-hospital complication rates after left atrial appendage closure (LAAC).Methods The US National Inpatient Sample was used to identify hospitalisations for LAAC between 1 October 2015 to 31 December 2018. These patients were stratified by race/ethnicity and quartiles of median neighbourhood income. The primary outcome was the occurrence of in-hospital major adverse events, defined as a composite of postprocedural bleeding, cardiac and vascular complications, acute kidney injury and ischaemic stroke.Results Of 6478 unweighted hospitalisations for LAAC, 58% were male and patients of black, Hispanic and ‘other’ race/ethnicity each comprised approximately 5% of the cohort. Adjusted by the older Americans population, the estimated number of LAAC procedures was 69.2/100 000 for white individuals, as compared with 29.5/100 000 for blacks, 47.2/100 000 for Hispanics and 40.7/100 000 for individuals of ‘other’ race/ethnicity. Black patients were ~5 years younger but had a higher comorbidity burden. The primary outcome occurred in 5% of patients and differed significantly between racial/ethnic groups (p<0.001) but not across neighbourhood income quartiles (p=0.88). After multilevel modelling, the overall rate of in-hospital major adverse events was higher in black patients as compared with whites (OR: 1.60, 95% CI 1.22 to 2.10, p<0.001); however, the incidence of acute kidney injury was higher in Hispanics (OR: 2.19, 95% CI 1.52 to 3.17, p<0.001). No significant differences were found in adjusted overall in-hospital complication rates between income quartiles.Conclusion In this study assessing racial/ethnic disparities in patients undergoing LAAC, minorities are under-represented, specifically patients of black race/ethnicity. Compared with whites, black patients had higher comorbidity burden and higher rates of in-hospital complications. Lower socioeconomic status was not associated with complication rates.All data relevant to the study are included in the article or uploaded as supplementary information.