経肛門内視鏡下微細手術(TEM)における腹膜開口:術前体位評価は術中管理を改善できるか?
Alberto Arezzo1, Carlo Alberto Ammirati2, Giovanni Distefano2
1Department of Surgical Sciences, University of Turin, Corso Bramante 88, 10126, Turin, Italy. alberto.arezzo@unito.it.
Surgical endoscopy
|February 4, 2026
まとめ
経肛門内視鏡下微細手術(TEM)中の腹膜開口(PO)はまれであるが、腹部への移行拡大および入院期間の延長と関連している。病変の特性と患者の体位を考慮した慎重な手術計画により、リスクを軽減できる。
科学分野:
- 大腸外科; 低侵襲手技; 手術合併症
背景:
- 経肛門内視鏡下微細手術(TEM)中の腹膜開口(PO)は、気腹の虚脱や処置合併症につながる可能性があります。; TEMがより大きくより近位の直腸病変にますます使用されるにつれて、POの理解は極めて重要です。
研究 の 目的:
- 経肛門内視鏡下微細手術(TEM)における腹膜開口(PO)の頻度、予測因子、および結果を決定すること。; 患者の体位がPOおよび関連する転帰に及ぼす影響を評価すること。
主な方法:
- 1077件のTEM/TEO切除の prospectively maintained single-center database の分析。; 病変の距離、直径、切除平面、および位置を含むPOの予測因子を特定するための多変量ロジスティック回帰。; POのある患者とない患者の転帰(腹部への移行、合併症、入院期間)の比較、および体位効果の分析。
主要な成果:
- TEM/TEO切除の7.5%で腹膜開口(PO)が発生しました。; POの予測因子には、肛門縁からの距離が遠いこと、病変径が大きいこと、全層切除、および円周方向の位置が含まれていました。後方位置は保護的でした。; POは腹部への移行率(6.2% vs 0.1%)と入院期間(5日 vs 4日)の増加と関連していましたが、合併症の有意な増加とは関連しませんでした。; POは腹臥位(11.1%)で仰臥位(3.7%)よりも一般的でしたが、PO群内での移行率は仰臥位でより高かったです。
結論:
- TEM/TEO中の腹膜開口(PO)はまれであり、主に解剖学的要因によって引き起こされます。; POの管理には、通常、安全な内腔内修復が効果的です。; 手術計画(病変の特性、体位)を最適化することで、短期的な罹患率を増加させることなくPOのリスクを低減できます。
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