病例资料：患者女，36岁。因劳力性心悸、气促4a，加重3个月于1994年3月7日入院。患者于1990年始出现劳力性心悸、气促，症状逐年加重。1992年后反复出现端坐呼吸及双下肢水肿，曾多次往当地医院诊断为风湿性心瓣膜病、二尖担狭窄，经治疗后症状缓解。近3个月来症状加重，出现 Case Information: Female patient, 36 years old. Because of labor-induced palpitations, shortness of breath 4a, increased 3 months in March 7, 1994 admission. Patients with exertional heart palpitations began in 1990, shortness of breath, the symptoms increased year by year. Repeated after 1992, sitting and breathing of both lower extremity edema, has repeatedly to the local hospital diagnosed with rheumatic valvular heart disease, two pointed narrow, after treatment, the symptoms ease. The past three months to increase the symptoms appear