高リスクの同時性直腸癌肝転移患者における同時切除の長期生存との関連性
Kevin P Labadie1, Peter Vien1, Kelly M Mahuron1
1Division of Surgical Oncology, Department of Surgery, City of Hope National Medical Center, Duarte, California, USA.
Journal of surgical oncology
|January 28, 2026
まとめ
直腸癌肝転移(RCLM)の同時切除は、高リスク患者にとって安全であり、長期生存をもたらす。この複合手術は、適切な設定で行われた場合に実行可能な選択肢を提供する。
科学分野:
- 腫瘍外科学; 消化器腫瘍学; 肝胆膵外科学
背景:
- 直腸癌肝転移(RCLM)の同時切除は、安全性への懸念および限定的な転帰データのため、頻繁には行われていない。肝転移を伴う直腸癌は、外科的管理にとって複雑な課題を提示する。
研究 の 目的:
- RCLMに対する同時性直腸および肝臓切除の周術期安全性および腫瘍学的転帰を評価すること。この複合手術アプローチに続く長期生存および再発パターンを評価すること。
主な方法:
- RCLMに対する根治的同時性直腸全摘除術(TME)および肝切除を受けた92人の患者の後ろ向き分析。2011年1月から2024年5月までに単一施設で収集されたデータ。術後合併症、全生存期間(OS)、無再発生存期間(RFS)、および肝臓無再発生存期間(H-RFS)の評価。
主要な成果:
- 92人の患者に周術期死亡は発生しなかった。患者の15%がClavien-Dindo Grade 3を超える合併症を経験した。中央値51ヶ月の追跡調査で、中央値OSは70ヶ月、RFSは10ヶ月、H-RFSは17ヶ月であった。肝臓の陽性断端、高い臨床リスクスコア、高い腫瘍負荷スコア、および6サイクルを超える術前化学療法は、予後不良と関連していた。
結論:
- RCLMの同時切除は、慎重に選択された高リスク患者において、良好な長期生存を伴う安全な処置である。この手術アプローチは、適切な臨床設定におけるRCLMの妥当な治療選択肢と見なすことができる。
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