Black race was a significant predictor of decreased long-term survival among patients developing postoperative atrial fibrillation after CABG compared to white patients (adjusted HR 1.2; 95% CI 1.02-1.4).
Cohort (n=13,165)
Does postoperative atrial fibrillation and race affect long-term survival in patients undergoing first-time isolated CABG?
Black race is a significant predictor of decreased long-term survival among patients who develop postoperative atrial fibrillation after CABG.
Hazard Ratio: 1.2 (95% CI 1.02–1.4)
BACKGROUND AND AIM: Postoperative 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. METHODS: Patients 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. RESULTS: A 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). CONCLUSION: Black 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.
O’Neal et al. (2013) conducted a cohort in Coronary Artery Bypass Grafting (CABG) (n=13,165). Black race among patients with postoperative atrial fibrillation vs. White race among patients with postoperative atrial fibrillation was evaluated on Long-term survival (HR 1.2, 95% CI 1.02-1.4). Black race was a significant predictor of decreased long-term survival among patients developing postoperative atrial fibrillation after CABG compared to white patients (adjusted HR 1.2; 95% CI 1.02-1.4).