19例哑型二尖瓣狭窄临床分析发现，随着年龄的增长及时间的推移，本病发病率有增多趋势，临床上有风湿病史，劳力性心悸、气促，体检发现S1及P2亢进、二尖瓣开瓣音，X线及心电图有左房、右室大，肺动脉高压征，心电轴右偏时应高度注意本病的可能，超声心动图是确诊本病最可靠的方法。 19 cases of dumb mitral stenosis clinical analysis found that with age and the passage of time, the incidence of this disease have an increasing trend in clinical rheumatoid history, palpitations, fatigue, shortness of breath, physical examination found S1 and P2 hyperthyroidism, Mitral valve open tone, X-ray and ECG left atrium, right ventricular large, pulmonary hypertension, right axis deviation should pay high attention to the possibility of this disease, echocardiography is the most reliable method of diagnosis of the disease.