有、无体外循环冠状动脉旁路移植术后房颤原因的分析

Analyzing the cause of atrial fibrillation after coronary artery bypass grafting

目的:比较非体外循环下的冠状动脉旁路移植术(OPCABG)与体外循环下的冠状动脉旁路移植术(ECCABG)后房颤的发生率,并分析其原因。方法:OPCABG组75例,手术在全麻常温下进行;ECCABG组113例,手术在全麻低温体外循环下进行。结果:OPCABG组术后15例(20％)出现房颤,ECCABG组术后31例(27.4％)出现房颤。二组房颤发生率有显著差异(P<0.05)。结论:非体外循环下的冠状动脉旁路移植术术后房颤的发生率低于体外循环下的冠状动脉旁路移植术术后的房颤发生率,但仍有较高的发生率。房颤发生的原因可能是术后侧支循环逐渐关闭,改变心房的血液分布,诱发心房内及其周围组织产生局灶激动,从而发生房颤。

Objective: To analyze the incidence and causes of atrial fibrillation after coronary artery bypass grafting. Methods: A total of 188 patients were divided into off-pump CABG (OPCABG) group and CABG by extracorporeal circulation (ECCABG) group. OPCABG group contains 75 cases and underwent off-pump coronary artery bypass grafting. ECCABG group contain 113 cases and underwent coronary artery bypass grafting byextracorporeal circulation. Results: There were 15 cases complicated atrial fibrillation in OPCABG group and 31 cases complicated atrial fibrillation in ECCABG group (P<0. 05). Conclusion: The incidence of atrial fibrillation (20%) in OPCABG group is lower than that of ECCABG group (27. 4%), however, the incidence of atrial fibrillation in OPCABG group is higher still.