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      Treatment of type II endoleaks with ethylene-vinyl-alcohol copolymer (Onyx).

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          Abstract

          We report our single-center experience in treating 101 type II endoleaks with ethylene-vinyl-alcohol copolymer (EVOH, Onyx). In all, 65 endoleaks were embolized transarterially, and 36 were treated through a translumbar approach. Since the first transarterial embolization, when we began attempts to treat all patients initially via common femoral access, 58 (65.9%) of 88 patients were successfully embolized transarterially. All endoleaks in the translumbar group were successfully treated. At a median follow-up length of 15 weeks, a decrease or stabilization in aneurysm size was observed in 39 (73.6%) of the 53 endoleaks that had adequate follow-up computed tomography imaging. The overall residual endoleak rate was 34.0%. There was no difference in efficacy when comparing transarterial and translumbar approaches. We demonstrate that in most cases, transarterial access of the endoleak nidus is feasible, and controlled embolization is possible using EVOH. Furthermore, EVOH appears effective in long-term stabilization of aneurysm size and in preventing residual endoleaks.

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          Author and article information

          Journal
          Vasc Endovascular Surg
          Vascular and endovascular surgery
          SAGE Publications
          1938-9116
          1538-5744
          Apr 2012
          : 46
          : 3
          Affiliations
          [1 ] Florida Interventional Specialists, Tampa, FL, USA. massis.kamal@gmail.com
          Article
          1538574412442401
          10.1177/1538574412442401
          22492111

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