Coronary Artery Bypass Grafting Atrial Fibrillation Incidence And Risk Factors Analysis

【Objective】: To investigate the incidence and relative risk factors of atrial fibrillation (AF) in patients with coronary artery bypass grafting (CABG).【Methods】: 312 patients with CABG were reviewed and divided into an AF group and a non-AF group. Statistical analysis was used to compare the data between the two groups and screen for risk factors of post-CABG AF.【Results】: 103/312 (33.01%) patients developed post-CABG AF. Univariate analysis showed that patients in AF group compared with those in non-AF group were more likely to have advanced age (≥65 years), early postoperative withdrawl ofβ-blockers, hypertension, left atrial enlargement (≥38mm), a history of AF, prolonged p-wave duration (≥110ms) and increased number of grafts (≥3). Stepwise multivariate logistic regression analysis showed advanced age (≥65years), early postoperative withdrawal ofβ-blockers, hypertension, left atrial enlargement (≥38mm) and history of AF were highly related to post-CABG AF.【Conclusions】: The incidence of AF in patients following CABG was 33.01% in this study. Advanced age, early postoperative withdrawal ofβ-blockers, hypertension, left atrial enlargement and history of AF were independent risk factors of post-CABG AF.