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  • Title: Racial Disparities in the Utilization and Outcomes of TAVR: TVT Registry Report.
    Author: Alkhouli M, Holmes DR, Carroll JD, Li Z, Inohara T, Kosinski AS, Szerlip M, Thourani VH, Mack MJ, Vemulapalli S.
    Journal: JACC Cardiovasc Interv; 2019 May 27; 12(10):936-948. PubMed ID: 31122351.
    Abstract:
    OBJECTIVES: This study sought to evaluate racial disparities in the performance and outcomes of transcatheter aortic valve replacement (TAVR). BACKGROUND: Racial disparities in cardiovascular diseases are well described. Whether the racial disparities observed in surgical aortic valve replacement also exist with TAVR remains unknown. METHODS: Patients undergoing TAVR between November 2011 and June 2016 were identified in the American College of Cardiology/Society of Thoracic Surgeons/Transcatheter Valve Therapy Registry. We described the racial distribution, and the risk-adjusted in-hospital morbidity, and mortality stratified by race. We evaluated 1-year outcomes in a subset of patients via linkage to Medicare (Centers for Medicare and Medicaid Services) claims. RESULTS: Among the 70,221 included patients, 91.3% were white, 3.8% were black, 3.4% were Hispanic, and 1.5% were of Asian/Native American/Pacific Islander race. This represented significant underrepresentation of nonwhite patients compared with their proportion of the population. After risk-adjustment, there was no difference in the rates of in-hospital mortality, myocardial infarction, stroke, major bleeding, vascular complications, or new pacemaker requirements among the 4 racial groups. Among 29,351 patients with Centers for Medicare and Medicaid Services linkage, 1-year adjusted mortality rates were similar in blacks and Hispanics compared with whites, but lower among patients of Asian/Native American/Pacific Islander race (adjusted hazard ratio: 0.71; 95% confidence interval: 0.55 to 0.92; p = 0.028). Black and Hispanic patients had more heart failure hospitalizations compared with whites (adjusted hazard ratio: 1.39; 95% confidence interval: 1.16 to 1.67; p < 0.001; and adjusted hazard ratio: 1.37; 95% confidence interval: 1.13 to 1.66; p = 0.004, respectively). These differences persisted after additional risk-adjustment for socioeconomic status. CONCLUSIONS: Racial minorities are underrepresented among patients undergoing TAVR in the United States, but their adjusted 30-day and 1-year clinical outcomes are comparable with those of white race.
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