MU Junsheng , ZHOU Fan , ZHANG Jianqun , et al .
  • 1.Department, Cardiac Surgery, the Affiliated Anzhen Hospital, Capital University of Medical Science, Beijing 100029, P.R.China;;
  • 2.Department of Echocardiagraphy, Army Hospital, Beijing 100039, P.R.China;
Coronary artery bypass grafting; Atrial fibrillation; Risk factor
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Objective To analyze the preoperative risk factors of atrial fibrillation (AF) in patients with coronary artery disease after coronary artery bypass grafting (CABG). Methods From September 2007 to April 2008, the clinical information of 226 patients who underwent onpump coronary artery bypass grafting(CABG)or offpump coronary artery bypass grafting(OPC
AB) was collected. The patients were divided into nonAF group and AF group according to whether AF lasted more than 5 mins in 3 days after operation. Ultrasonic cardiography (UCG) and clinical information of preoperation in two groups wer
e analyzed. Results Twentyfour（10.6%） patients had AF after operation. There were more patients whose left atrial diameter  gt;35 mm in AF group than that in nonAF group ［41.7%（10）vs. 22.3% (45),χ2=4.380, P=0.036）］, more pati
ents had mitral regurgitation in AF group than that in nonAF group ［37.5%（9） vs. 17.3% (35),χ2=5.568, P=0.018）］, more patients had left main coronary artery involvement in AF group than that in nonAF group ［33.3% (8) vs.12.4% (25),
χ2=7.560,P=0.006］, and patients in AF group were older than those in nonAF group ［65.7±9.5 years vs. 60.1±10.1 years,t=-2.724,P=0.010］. In univariate analysis, in terms of preoperative clinical indexs such as the aged, mitral regurgitation, left atrial diameter, left mainm coronary artery involvement, and postoperative clinical indexs such as ventilatory time （χ2=4.190，P=0.040）, electrocardiogram (ECG) monitoring time（χ2=5.948，P=0.015）, hospitalization expense（χ2=4.110，P=0.043）, there were significant differences between 2 groups. Conclusion Risk factors such as the aged, mitral regurgitation, left atrial diameter and left main coronary artery involvement are related to AF after CABG. Clinical index, ECG and echocardiography are helpful to predict AF, and can provide better prevention and treatment, and reduce the rate of AF.

Citation： MU Junsheng,ZHOU Fan,ZHANG Jianqun,et al .. Risk Factors of Atrial Fibrillation after Coronary Artery Bypass Grafting. Chinese Journal of Clinical Thoracic and Cardiovascular Surgery, 2009, 16(3): 179-182. doi: Copy