Methods In order to perform general anticoagulation, heparin or small molecule heparin were used for patients with acute brain thrombosis in 22 cases, limb artery thrombosis in 18 cases, ilic and formal vein thrombosis in 200 cases, inferior vena cava thrombosis in 20 cases. 方法急性脑血栓形成22例,四肢动脉血栓18例,髂股静脉血栓200例,下腔静脉血栓20例,分别给以肝素或小分子肝素行全身抗凝。