Application of inferior vena cava filter in the interventional treatment of deep veinous thrombosis

Objectives To explore the application value of inferior vena cave filter (IVCF) for preventing pulmonary embolism (PE) in the interventional treatment of deep veinous thrombosis (DVT). Methods From May, 1998 to April, 2002, 35 filters were placed in 35 cases suffered from DVT in the lower limbs and pelvic veins through femoral veins (32 cases) and right subclavian veins (3 cases). All the filters were located at the level below the opening of renal veins. Interventional therapy including thrombolysis, thrombectomy, percutaneous transluminal angioplasty and stent implantation was carried out after IVCF placement. Results All the procedures were finished successfully. No PE occurred and no complication found in the follow up period of 1～36 months. Clinical symptoms and signs improved significantly. Conclusions IVCF insertion is an effective and safe method for preventing PE in the interventional treatment of DVT.