Abstract
To evaluate the efficacy and safety of catheter-directed thrombolysis (CDT) in treating with inferior vena cava (IVC) thrombosis after filter implantation. A retrospective analysis of 13 patients with IVC thrombosis after filter implantation was conducted at our institution from June 2009 to June 2012. A total of 26 lower extremities were involved.IVC filters were implanted via right internal jugular vein. Then CDT was performed through small saphenous vein, popliteal vein or femoral vein. The dosage of urokinase was 0.6-1 million/day. The occlusive segment in IVC was managed with percutaneous transluminal angioplasty (PTA) and stenting. The obstructed IVC was re-opened after CDT in 11 cases. The average CDT time was 8.3 (7-13) days. PTA (n = 2) and stenting (n = 1) were performed. A total of 4 retrievable filters were planted and retrieved later successfully.No severe complications occurred. During the follow-ups, no clinically detetable sighs of pulmonary embolism were observed. CDT is effective, safe and feasible in the treatment of IVC thrombosis after filter implantation.
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