肝硬変および再発性腹水の患者におけるTIPSの生存率改善:多施設共同観察研究
Bo Wang1,2, Jun Zhu1,3, Jing Li4,5
1State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China.
International journal of surgery (London, England)
|December 19, 2025
まとめ
経皮的肝内門脈大循環シャント(TIPS)は、大容量穿刺排液+アルブミン療法(LVP + A)と比較して、再発性腹水を伴う進行性肝硬変患者の生存率を著しく改善する。TIPSは腹水の再発および出血を減少させるが、肝性脳症のリスクを増加させる。
科学分野:
- 肝臓学
- 血管内治療
- 消化器病学
背景:
- 再発性腹水を伴う進行性肝硬変に対する経皮的肝内門脈大循環シャント(TIPS)の生存率ベネフィットに関するエビデンスは限られている。
- 大容量穿刺排液+アルブミン療法(LVP + A)は、難治性腹水の一般的な治療法である。
研究 の 目的:
- 進行性肝硬変および再発性腹水患者におけるTIPSとLVP + Aの生存率ベネフィットを比較すること。
- TIPSが腹水の再発および門脈圧亢進症関連合併症に及ぼす影響を評価すること。
主な方法:
- 進行性肝硬変および再発性腹水患者462名を対象とした後向き研究。
- TIPS(N=151)群とLVP + A(N=311)群の比較。
- Fine and Gray競合リスク回帰モデルを用いたアウトカム解析。
主要な成果:
- TIPS群の1年全生存率は、LVP + A群(47.3%)と比較してTIPS群(77.9%)で有意に高かった。
- TIPS群は死亡リスクを57%減少させた(調整後ハザード比=0.43)。
- TIPSは、さらなる穿刺排液および門脈圧亢進症関連出血を有意に減少させたが、顕性肝性脳症は増加した。
結論:
- TIPSは、LVP + Aと比較して、再発性腹水を伴う進行性肝硬変患者の1年生存率を改善する。
- TIPSは顕性肝性脳症のリスクを増加させるが、腹水の再発および門脈圧亢進症関連出血を効果的に減少させる。
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