Mohamad Alkhouli1, David R Holmes2, John D Carroll3, Zhuokai Li4, Taku Inohara4, Andrzej S Kosinski4, Molly Szerlip5, Vinod H Thourani6, Michael J Mack7, Sreekanth Vemulapalli8. 1. Department of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota; Division of Cardiology, West Virginia University, Morgantown, West Virginia. 2. Department of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota. Electronic address: Holmes.david@mayo.edu. 3. Division of Cardiology, University of Colorado School of Medicine, Aurora, Colorado. 4. Duke Clinical Research Institute, Durham, North Carolina. 5. Department of Interventional Cardiology, The Heart Hospital Baylor Plano, Plano, Texas. 6. Department of Cardiac Surgery, MedStar Heart and Vascular Institute and Georgetown University, Washington, DC. 7. Baylor Scott and White Health, Dallas, Texas. 8. Duke Clinical Research Institute, Durham, North Carolina; Division of Cardiology, Duke University School of Medicine, Durham, North Carolina.
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.
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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