原发性肥厚型梗阻性心肌病(IHSS)并非少见,但往往由于临床表现不典型,易造成漏诊或误诊。我院自1978～1989年5月超声心动检出原发性肥厚型心肌病113例,其中IHSS51例,现就其中38例有较完整临床资料者初步分析如下。临床资料男性19例,女性19例,年龄20～74(平均42.5)岁,病程1月～15年不等。症状:以阵发性心悸、胸闷为最常见。其中心悸26例,胸闷14例,头昏9例、黑矇3例、 Primary hypertrophic obstructive cardiomyopathy (IHSS) is not uncommon, but often due to the clinical manifestations of atypical, easily lead to missed diagnosis or misdiagnosis. Our hospital from 1978 to May 1989 echocardiography detected 113 cases of primary hypertrophic cardiomyopathy, of which 51 cases of IHSS, are now 38 cases of which have a more complete clinical information were initially analyzed as follows. Clinical data of 19 males and 19 females, aged 20 to 74 (average 42.5) years of age, duration of 1 months to 15 years. Symptoms: Paroxysmal palpitations, chest tightness is the most common. The central palpitations in 26 cases, chest tightness in 14 cases, dizziness in 9 cases, 3 cases of malaria,