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微絨毛内包症患者における壊死性腸炎:症例報告
Inna Spector Cohen1,2, H Golden3, O Kobi1,4
1Pediatric Gastroenterology & Nutrition Institute, Ruth Rappaport Children's Hospital, Rambam Health Care Campus, Haifa, Israel.
Intestinal Failure (New York, N.Y.)
|February 6, 2026
まとめ
微絨毛内包症(MVID)は、壊死性腸炎(NEC)を呈する可能性のあるまれな遺伝性疾患です。この症例は、NEC合併症を防ぐためにMVID患者における慎重な経腸栄養管理の重要性を強調しています。
科学分野:
- 消化器病学
- 小児医学
- 遺伝学
背景:
- 微絨毛内包症(MVID)は、重度の乳児下痢を特徴とするまれな先天性疾患であり、長期的な静脈栄養を必要とすることがよくあります。
- MVIDは、腸管機能に不可欠なブラシ縁タンパク質輸送を損なうMYO5B遺伝子の変異によって発生します。
- 壊死性腸炎(NEC)は、MVIDとの関連はまれであり、以前の症例報告は限られています。
研究 の 目的:
- MVIDがNECで複雑化した症例を報告すること。
- MVIDとNECの潜在的な関連性を強調すること。
- MVID患者における経腸栄養に関する臨床診療に情報を提供すること。
主な方法:
- MVIDを有する5か月齢の男児の症例報告。
- 臨床症状、診断画像、および治療介入を文書化しました。
- フォーミュラ変更や提供された母乳を含む栄養管理戦略を評価しました。
主要な成果:
- 患者は、フォーミュラへの移行後、下痢、脱水、代謝性アシドーシスの悪化を呈し、NECと診断されました。
- 画像検査では、腸管気腫症や門脈ガスなどの特徴的なNEC所見が明らかになりました。
- 保存的治療と提供された母乳への切り替えにより、乳児は安定し、症状は改善しました。
結論:
- この症例は、MVIDを有する乳児におけるNEC発症の可能性を強調しています。
- MVID患者における経腸栄養戦略の慎重な検討が不可欠です。
- 低灌流および粘膜完全性の低下のリスクがあるため、臨床医はMVID患者におけるNECの疑いを高く持つべきです。
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