弘前医学
Online ISSN : 2434-4656
Print ISSN : 0439-1721
原著
ALN retrievable vena cava filter -efficacy, safety and retrievability-
Wakako FukudaMari ChiyoyaYoshiaki SaitoSaoshi TaniguchiKazuyuki DaitokuIkuo Fukuda
著者情報
キーワード: IVC filter, ALN filter, VTE
ジャーナル フリー

2017 年 67 巻 2-4 号 p. 158-165

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抄録

Background: Retrievable inferior vena cava (IVC) filter devices have been developed to overcome the long-term complications of permanent filters. It is of interest to evaluate the retrievability of retrievable IVC filters and how safely the IVC filters indwelled for a long period of time can be retrieved. We reviewed a group of 44 patients, who were selected for ALN retrievable filter implantation and reviewed the indications, efficacy as well as complications.
Material and Methods: 300 venous thromboembolism (VTE) patients were treated in our institution between 2003 and 2014. IVC filters were inserted in 84 cases (28%) and 44 of 84 patients received ALN retrievable filter implantation. We retrospectively reviewed the indications, efficacy and complications of 44 patients with ALN filters. Results: All 44 patients had deep vein thrombosis (DVT) and 39 patients (88.6%) also had pulmonary embolism (PE). The most frequent associated risk factor for DVT was cancer (n=19). The filter was implanted for a median duration of 708.8 days (range 68-1717). While the filter was in place, at least one venous thromboembolic event occurred in 4.5% (2 of 44 patients). Filter retrieval was attempted in 8 patients (18.2%) after a median period of 271.9 days (range 79 - 559). Filter retrievals were successful in all cases.
Conclusion: This study showed the efficacy of ALN filter. It also demonstrated the safety of retrieval after a long-term placement.

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© 2017 Hirosaki Medical Journal Editorial Board
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