二尖瓣狭窄(MS),常见于风心病。心尖部听不到舒张期杂音(DM)者称为“哑型”MS。此时诊断困难,误、漏诊率较高。近年来,随着超声心动图(UCG)检查的普及,本病时有发现。现将我院近二年资料完整的5例结合文献讨论如下。临床资料女3例,男2例,年龄43～68岁。病程2～33年,5例有左心衰竭,4例同时伴右心衰 Mitral stenosis (MS), common in rheumatic heart disease. Apex diastolic murmur (DM) are called “dull” MS. At this point of diagnosis difficult, wrong, missed a higher rate of misdiagnosis. In recent years, with the popularity of echocardiography (UCG) examination, the time has been found. Now in our hospital nearly two years of data complete with 5 cases of literature discussed below. Clinical data of 3 females, 2 males, aged 43 to 68 years. Course of 2 to 33 years, 5 cases of left heart failure, 4 cases accompanied by right heart failure