作者对103例慢性非风湿性心房纤颤病人采用经食道超声心动图检查、研究左房自发回波的普遍性及临床意义。从1989年1月到1991年4月。经体检或超声心动图证实无风湿性二尖瓣狭窄,而心房纤颤持续30天或30天以上患者,诊断为慢性非风湿性心房纤颤的103例(男74人、女29人,年龄28～82岁,平均年龄65岁)为研究对象。采用经胸腔和食管超声心动图检查,发现在103例中有25例可见左房自发回波(占24.3%)。再从年龄、性别、左房直径、舒张期和收缩期的左室大小、射血分数、二尖瓣狭窄程度及孤立性房颤等方面进行对比研究。发现在有左房自发回波和没有自发回波的病人之间基本上无区别,但有左房自发回波的病人比无自发回波患者出现中到重度二尖瓣回流者少见(P<0.05)。观察到左房血栓7 The author of 103 cases of chronic non-rheumatic atrial fibrillation in patients with transesophageal echocardiography to study the universal left atrial spontaneous echo and clinical significance. From January 1989 to April 1991. 103 cases of chronic non-rheumatic atrial fibrillation (74 males and 29 females, age, 15 years old) were diagnosed as having rheumatic mitral stenosis by physical examination or echocardiography, while patients with atrial fibrillation lasting 30 days or more 28 to 82 years old, average age 65 years) as the research object. Using transthoracic and esophageal echocardiography, it was found in 25 of 103 cases of left atrial spontaneous echo (24.3%). Then from the age, gender, left atrial diameter, diastolic and systolic left ventricular size, ejection fraction, degree of mitral stenosis and isolated atrial fibrillation and other aspects of comparative study. Found to be essentially indistinguishable between patients with and without spontaneous left atrial spontaneous echo but with spontaneous echo of the left atrium and patients with moderate to severe mitral regurgitation with rare spontaneous echo were less common (P < 0.05). Left atrial thrombus was observed