静脉血栓栓塞是一种常见病,但对其处理至今研究得不多。苏格兰的调查发现,虽然大多数医师先用静脉内肝素继而用口服新双香豆素治疗这类病人,但用药时间差别很大。用药时间越长,出血及其它副作用的危险越大,而且耗时费钱。因此,通过随机研究以证实抗凝 Venous thromboembolism is a common disease, but few studies have addressed it so far. The Scottish survey found that although most physicians first treated these patients with intravenous heparin followed by oral dipivoxil, the timing of treatment varies widely. The longer the medication, the greater the risk of bleeding and other side effects, which can be time-consuming and costly. Therefore, through randomized studies to confirm anticoagulation