１临床资料 患者女性，２９岁，因胸闷、气短３月，加重７天于２０００年３月１５日入院。患者１９９９年１２月５日无明显诱因突发晕厥，持续约１０分，醒后自觉胸闷、气短，活动耐力减低，当地医院肺动脉造影证实：双侧肺动脉主干内血栓栓塞，给予尿激酶３０万Ｕ静脉溶栓，每 1 Clinical data Patients Female, 29 years old, due to chest tightness, shortness of breath in March, increased 7 days in March 15, 2000 admission. Patients December 5, 1999 no significant incentive sudden syncope, lasted for about 10 minutes, wake up conscious chest tightness, shortness of breath, decreased activity endurance, pulmonary arteriography confirmed by the local hospital: Bilateral pulmonary artery thromboembolism given urokinase 30 million U Intravenous thrombolysis, each