門脈血栓症および腸間膜静脈虚血の概要
Cyprien Gayat1, Alexandre Nuzzo2,3, Laure Elkrief1,4
1Université de Tours, service d'hépato-gastroentérologie, Centre de références constitutif des maladies vasculaires du foie, Hôpital Trousseau, CHRU de Tours, Tours, France.
La Revue du praticien
|December 30, 2025
まとめ
門脈血栓症(PVT)は肝疾患がない場合はまれですが、肝硬変では一般的です。診断は画像検査で行われ、治療は抗凝固療法が中心ですが、重症例では再開通療法や手術が考慮されます。
科学分野:
- 消化器病学
- 血管医学
- 放射線医学
背景:
- 門脈血栓症(PVT)は、慢性肝疾患のない患者ではまれであり、血栓形成傾向の状態に関連しています。
- PVTの有病率は肝硬変の重症度とともに増加し、腹痛やC反応性タンパク(CRP)の上昇などの急性症状、または門脈圧亢進症の慢性的な兆候を示します。
研究 の 目的:
- 門脈血栓症(PVT)の診断および管理戦略を概説すること。
- PVT、肝硬変、および血栓形成傾向因子との関連を強調すること。
- PVTとその合併症の診断における画像診断の重要な役割を強調すること。
主な方法:
- 診断は、特定の位相取得を伴うコンピューテッドトモグラフィー(CT)または磁気共鳴画像法(MRI)に依存します。
- 腸間膜虚血(重度のPVT合併症)の検出には、体系的な画像診断検査が不可欠です。
- 治療の個別化のため、血栓症の特徴、併存疾患、および治療目標を考慮します。
主要な成果:
- PVTの診断は30%の症例で偶発的です。
- 腸間膜虚血は最も重要な合併症であり、腸壊死、高乳酸血症、臓器不全が疑われる場合は緊急手術を考慮する必要があります。
- 抗凝固療法は、最近および慢性のPVTの両方に対する主要な治療法です。
結論:
- 抗凝固療法はPVT管理の基盤です。
- 放射線学的門脈再開通療法は、難治性または重度の症状の症例の選択肢です。
- 最適な結果を得るためには、血管性肝疾患の専門家による管理が推奨されます。
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