• Wesley T O'Neal, Jimmy T Efird, Stephen W Davies, Jason B O'Neal, Curtis A Anderson, T Bruce Ferguson, W Randolph Chitwood, and Alan P Kypson.
• Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina.
• J Card Surg. 2013 Sep 1; 28 (5): 484-91.

Background And AimPostoperative atrial fibrillation (POAF) is a known predictor of in-hospital morbidity and short-term survival after coronary artery bypass grafting (CABG). The impact of race and long-term survival has not been examined in this population. We aimed to examine the influence of these factors on long-term survival in patients undergoing CABG.MethodsPatients undergoing first-time, isolated CABG between 1992 and 2011 were included in this study. Long-term survival was compared in patients with and without POAF and stratified by race. Hazard ratios (HR) and 95% confidence intervals (CI) were computed using a Cox regression model.ResultsA total of 2,907 (22%) patients developed POAF (black n=370; white n=2,537) following CABG (N=13,165). Median follow-up for study participants was 8.2 years. Long-term survival after CABG differed by POAF status and race (no POAF: HR=1.0; white POAF: adjusted HR=1.1, 95% CI=1.06-1.2; black POAF: adjusted HR=1.4, 95% CI=1.2-1.6; pTrend=0.0002). lack POAF patients also died sooner after surgery than their white counterparts (adjusted HR=1.2, 95% CI=1.02-1.4).ConclusionBlack race was a statistically significant predictor of decreased survival among POAF patients after CABG. This finding provides useful outcome information for surgeons and their patients.© 2013 Wiley Periodicals, Inc.

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