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  • Title: Catheter-directed thrombolysis through anterior tibial vein for treating acute extensive deep venous thrombosis.
    Author: Wang H, Qi X, Luo H, Zhang Q, Chen Y, Sun J.
    Journal: J Vasc Surg Venous Lymphat Disord; 2018 Nov; 6(6):681-688. PubMed ID: 30126796.
    Abstract:
    OBJECTIVE: The objective of this study was to evaluate the feasibility, efficacy, and safety of catheter-directed thrombolysis (CDT) through an anterior tibial vein approach for acute extensive lower extremity deep venous thrombosis (DVT). METHODS: There were 125 consecutive patients with acute extensive lower extremity DVT who received CDT through an anterior tibial vein approach between October 2014 and June 2017. The patients with iliac vein compression syndrome were treated with balloon dilation and stent implantation after CDT. The thrombus score differences, limb circumference differences, venous patency, and complications were retrospectively analyzed. RESULTS: The anterior tibial vein approach was successfully achieved in 118 patients (94.40% [118/125]). The mean thrombolysis time was 5.28 ± 1.10 days, and the average dose of urokinase was 3,903,400 ± 766,900 IU. Metal stents were placed in 50 patients (42.37% [50/118]). There were 109 patients (92.37% [109/118]) who had successful lysis (grade II and grade III lysis); 31 patients (91.18% [31/34]) achieved grade III lysis (no residual thrombus) within 3 days of symptom onset. In contrast, only 33.96% (18/53) of those treated within 4 to 7 days and 9.68% (3/31) of those treated after 7 days achieved grade III lysis. Compared with findings before CDT, the limb circumference above and below the knee was significantly reduced (7.22 ± 2.54 cm vs 1.58 ± 0.75 cm and 5.14 ± 1.41 cm vs 1.19 ± 0.49 cm, respectively). The incidence of bleeding was 10.17% (12/118). Six patients had puncture site bleeding, and three patients suffered major bleeding. One puncture site infection and two catheter-directed infections were observed during treatment. Two patients had accidental anterior tibial artery injury and recovered without complications, and no nerve injury occurred. During a follow-up of 19.39 ± 7.47 months (6-32 months), femoral venous insufficiency and popliteal venous insufficiency were present in 21.65% (21/97) and 30.93% (30/97) of the patients. The overall patency and post-thrombotic syndrome rates were 83.51% (81/97) and 21.65% (21/97). CONCLUSIONS: CDT through an anterior tibial vein approach is a feasible, effective, and safe method for acute extensive lower extremity DVT patients. In addition, the anterior tibial vein approach can be an alternative to the traditional CDT approach.
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