心房颤动是临床最常见的心律失常之一。据统计,60岁以上的人群中,房颤的发生率为1%,且随着年龄而增加。房颤常发生于原有心血管疾病者,常见于冠心病、风湿性心脏病、高血压性心脏病、缩窄性心包炎、心肌病、感染性心内膜炎及慢性肺心病等。本试验旨在观察左房内径对冠心病患者 Atrial fibrillation is one of the most common clinical arrhythmias. According to statistics, among people over the age of 60, the incidence of atrial fibrillation is 1%, and increases with age. Atrial fibrillation often occurs in the original cardiovascular disease, common in coronary heart disease, rheumatic heart disease, hypertensive heart disease, constrictive pericarditis, cardiomyopathy, infective endocarditis and chronic pulmonary heart disease. The purpose of this study was to observe the left atrial diameter of patients with coronary heart disease