特发性肥厚性主动脉瓣下狭窄,简称IHSS,或称梗阻性心肌病。本病特点是左室对称或不对称肥厚,尤以室间隔及左室流出道附近心肌为著。收缩期流出道肥厚心肌更形狭窄,致左室射血障碍,引起一系列症状。以往对本病认识不足,常被忽略或误诊。近10余年已引起重视,国内专题报告不多,现将我们碰到的较为典型的10例提出讨论。一般资料年龄与性别:本组10例年龄5～52岁(其中30～41岁5例),女性2例(系同一家庭)。症状:心前区痛8例,头晕6例,晕厥 Idiopathic hypertrophic aortic valve stenosis, referred to as IHSS, or obstructive cardiomyopathy. The disease is characterized by left ventricular symmetry or asymmetric hypertrophy, especially in the septum and left ventricular outflow tract near the myocardium. Systolic outflow tract hypertrophy myocardial more narrow, causing left ventricular ejection disorder, causing a series of symptoms. In the past lack of knowledge of the disease, often overlooked or misdiagnosed. In the past 10 years or so, attention has been drawn to the fact that there are not many reports on special topics in our country. We now discuss the more typical 10 cases we encountered. General information Age and gender: The group of 10 patients aged 5 to 52 years (of which 30 to 41 years in 5 cases), female 2 (Department of the same family). Symptoms: 8 cases of anterior precordial pain, dizziness in 6 cases, syncope