患者男， 50岁，已婚，以反复胸闷气促半年，加重 8 d于 1999年 11月 1日入院。患者半年来反复出现胸闷、气促，快步行走尤为明显，登楼困难，有时夜间端坐，无下肢浮肿，无胸痛、晕厥。曾在外院按心衰给予地高辛、利尿剂、扩血管药等治疗好转。 8 d前胸闷气促加重，呈持续性端 Male patient, 50 years old, married with repeated chest tightness and irritability for six months, increased 8 d on November 1, 1999 admitted to hospital. Repeated chest tightness in patients six months, shortness of breath, rapid walking is particularly evident, difficult ascension, sometimes sitting at night, no lower extremity edema, no chest pain, syncope. Had to heart failure given digoxin, diuretics, vasodilators and other treatment improved. 8 d chest tightness and aggravate aggravate, was persistent end