应用多普勒超声心动图监测4例风湿性心脏病二尖瓣狭窄并发左房活动性血栓患者,采用中西医联合用药:小剂量尿激酶及常量脉络宁静脉溶栓治疗10～15天,超声显示活动血栓消失,血纤溶活性变化显著,安全可靠。1个月后,使用国产球囊导管及配件,成功施行了经皮球囊二尖瓣成形术,为非外科治疗同类患者提供了一条新的途径。 Doppler echocardiography was used to monitor 4 patients with rheumatic mitral stenosis and left atrial active thrombosis who were treated with combination therapy of Chinese and Western medicine: small dose of urokinase and intravenous infusion of aorta veinning for 10 to 15 days. Active thrombosis disappeared, fibrinolytic activity was significantly changed, safe and reliable. One month later, the successful implementation of percutaneous balloon mitral valvuloplasty using domestic balloon catheters and accessories has provided a new avenue for non-surgical treatment of similar patients.