ABSTRACT
Objective To investigate the relationship between serum uric acid level and atrial fibrillation in patients with coronary heart disease.Methods Two hundred and forty-seven inpatients with coronary heart disease were selected.All the patients were divided into simple coronary heart disease group (90 cases),coronary heart disease with paroxysmal atrial fibrillation group (85 cases) and coronary heart disease with continuous/permanent atrial fibrillation group (72 cases).The age,history of cardiovascular events,uric acid,echocardiographic characteristics and drug-taking history were carefully recorded.The risk factors of atrial fibrillation in patients with coronary heart disease were analyzed by Logistic regression.Results The level of history of smoking,diastolic blood pressure,body mass index,total cholesterol,high density lipoprotein cholesterol,low density lipoprotein cholesterol,creatinine,fasting plasma glucose,postprandial 2 h plasma glucose,interventricular septal thickness,carotid intima-media thickness and drug-taking history among the 3 groups showed no statistical differences (P ＞ 0.05).The age,systolic blood pressure,uric acid,left atrial diameter (LAD),left ventricular end diastolic diameter (LVEDD) in coronary heart disease with paroxysmal atrial fibrillation group and coronary heart disease with continuous/permanent atrial fibrillation group were significantly higher than those in simple coronary heart disease group,the left ventricular ejection fraction (LVEF) was significantly lower than that in simple coronary heart disease group,and there were statistical differences (P ＜ 0.01 or ＜ 0.05).The result of Logistic regression analysis showed high uric acid,high age,expanded LAD and LVEDD were the independent risk factors of atrial fibrillation in patients with coronary heart disease,and uric acid showed the most significant correlation (P =0.001,OR =1.061,95％ CI 1.026-1.096).Conclusion High serum uric acid level maybe a risk factor of atrial fibrillation in patients with coronary heart disease.