患者女性52岁,因间歇性心悸、气促20余年伴胸闷、胸痛入院。患者20年前起劳累后出现胸骨后压榨性疼痛,休息能缓解。近几年来上述症状加重,稍许活动胸痛频繁发作。体格检查:血压17.29/9.31kPa口唇不发绀,颈静脉无怒张,气管居中,胸廓对称, Female patient 52 years old, due to intermittent palpitations, shortness of breath more than 20 years with chest tightness, chest pain admitted. Patient twenty years ago after exertion of sternal pain after press, rest can be alleviated. In recent years, the above symptoms worse, frequent activities of chest pain frequent attacks. Physical examination: blood pressure 17.29 / 9.31kPa lips without cyanosis, jugular vein without tension, tracheal center, thorax symmetry,