关键词: 急性下肢静脉血栓, 抗凝治疗, 导管接触性溶栓, 经皮机械血栓清除术

Abstract: Treatment strategies of acute lower-extremity venous thrombosis        WU Dan-ming, SHEN Shi-kai. Department of Vascular，the People’s Hospital of Liaoning Province, Shenyang 110001，China
Corresponding author：WU Dan-ming,E-mail：danming_w@126.com
Abstract    Acute venous thrombosis of the lower extremities is the most common venous emergency in vascular surgery with a high incidence.If it isn’t handled properly，thrombus shedding in the acute phase will cause pulmonary embolism，and some patients in the chronic phase will have complications such as thrombosis recurrence and post-thrombotic syndrome，which will seriously affect the quality of life of the patients. Therefore，clarifying the risk factors and being vigilant for patients with venerable age，immobilization，surgery，trauma，postpartum，and malignant tumors, carrying on reasonable prevention and evaluation should be performed to reduce the incidence of thrombosis in the hospital.Once thrombosis is formed，if there is no contraindication to anticoagulation，anticoagulation therapy should be performed immediately.After the bleeding risk is assessed，select appropriate endovascular treatment methods，such as catheter directed thrombolysis or percutaneous mechanical thrombectomy.For patients with iliac vein stenosis or occlusion，stent implantation is feasible. For patients with contraindications to anticoagulation or floating thrombosis in the inferior vena cava，implantation of the vena cava filter is feasible.The establishment of a thrombosis prevention and control system at the hospital level can provide early detection，early diagnosis and early treatment of thrombosis patients.

Key words: acute lower-extremity venous thrombosis, anticoagulation therapy, catheter-directed thrombolysis, percutaneous mechanical thrombectomy