下大静脈フィルターの回収失敗
Robert B Murrell1, Mitchell Fisher2, Christopher Stewart2
1General Surgery, St. Mary's Hospital, Blue Springs, USA.
Cureus
|February 3, 2026
まとめ
下大静脈(IVC)フィルターの回収は困難な場合がある。本症例は、フィルターの傾斜による回収失敗を強調し、注意と高度な技術に関するさらなる研究の必要性を強調する。
科学分野:
- 血管外科
- インターベンショナルラジオロジー
- 医療機器技術
背景:
- 下大静脈(IVC)フィルターは、深部静脈血栓症(DVT)患者の肺塞栓症を予防する。
- フィルターは通常一時的なものであり、抗凝固療法が安全になったら除去される。
- 回収失敗が発生する可能性があり、慎重な管理が必要となる。
研究 の 目的:
- IVCフィルター回収失敗の症例を報告する。
- 困難なIVCフィルター除去に関連する課題と潜在的な合併症について論じる。
- 標準化された高度な回収技術の必要性を強調する。
主な方法:
- 75歳女性患者がIVCフィルター回収を試みた。
- スネア・アンド・シース、内視鏡、腹腔鏡用グリッパーを含む複数の回収技術が用いられた。
- 処置中にフィルターの位置を評価するために画像検査(静脈造影)が使用された。
主要な成果:
- IVCフィルターは約30度傾斜し、フックは右腎静脈起始部に近接していた。
- 不十分な把持力とフィルターのずれにより、すべての回収試行が失敗した。
- 合併症を回避するため、フィルターをそのまま留置する決定がなされた。
結論:
- 困難なIVCフィルター回収は、重大な課題とリスクをもたらす。
- 高度な技術は成功率を向上させるが、複雑な症例では注意が必要である。
- 困難なIVCフィルター回収の手順を標準化するためには、さらなる研究が必要である。
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