病例1患男，52岁，曾胸痛胸闷已3个月，现因持续性胸痛2h入院。诊为急性心内膜下心肌梗塞。给予极化液，硝酸甘油2．5mg，肝素50mg常规静滴，尿激酶25万U（丽宝生物化学制药厂，950202）加入生理盐水100ml内静脉滴注；90min后病人出现右耳堵塞感，听力减退，无耳鸣及眩晕，持续 Case 1 suffering from men, 52 years old, had chest pain chest tightness has been 3 months, is due to persistent chest pain 2h admission. Diagnosis of acute subendocardial myocardial infarction. Given polarized solution, nitroglycerin 2.5mg, heparin 50mg conventional intravenous infusion of urokinase 250,000 U (Biopharmaceutical Factory 950202) was added intravenous infusion of saline 100ml; 90min after the patient appeared right ear clogging, Hearing loss, no tinnitus and dizziness continued