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Introduction: Atrial fibrillation (AF) is a common complication following coronary artery bypass grafting (CABG) surgery, particularly in diabetic patients. Elevated preoperative HbA1c levels have been suggested as a potential risk factor for postoperative AF; however, the association remains unclear. This study aimed to investigate the association between preoperative HbA1c levels and the incidence of new-onset atrial fibrillation during the early postoperative period in diabetic patients undergoing on-pump CABG surgery in Bangladesh. Methods: This observational cross-sectional study was conducted at the Department of Cardiac Surgery, National Institute of Cardiovascular Disease, Dhaka, Bangladesh. A total of 60 diabetic patients undergoing on-pump CABG were included and divided into two groups: Group-1 (HbA1c 0.05). However, preoperative HbA1c levels were significantly different between the two groups (6.11±0.44 in Group-1 vs. 7.98±0.55 in Group-2, p < 0.001). The incidence of new-onset atrial fibrillation during the early postoperative period was significantly higher in Group-2 (63.33%) than in Group-1 (30.00%, p < 0.05). A significant association was also observed between postoperative atrial fibrillation and hypertension (p < 0.05). Patients in Group-2 experienced a higher rate of postoperative complications, ....... |
