メチルフェニデート誘発性肝炎の症例報告
Diana Valbom Gonçalves1, Mariana Bravo2, Sónia Almeida1
1Department of Pediatrics. Unidade Local de Saúde Aveiro. Aveiro. Portugal.
Acta medica portuguesa
|December 17, 2025
まとめ
メチルフェニデート(MPH)は、注意欠陥・多動性障害(ADHD)の小児にまれな肝障害を引き起こす可能性があります。重篤な合併症を防ぐために、早期に薬物誘発性肝炎を検出するための定期的なモニタリングが不可欠です。
科学分野:
- 小児薬理学
- 肝臓病学
- 神経精神医学
背景:
- メチルフェニデート(MPH)は、注意欠陥・多動性障害(ADHD)の第一選択薬である。
- 一般的に安全であるが、MPH治療に関連する肝毒性のまれな症例が報告されている。
- MPHの副作用は通常一過性であるが、肝障害は深刻な懸念事項となりうる。
研究 の 目的:
- MPHで治療された小児患者における薬物誘発性肝炎の症例を報告する。
- 長期MPH療法中の肝機能モニタリングの重要性を強調する。
- 重篤な肝合併症を防ぐための早期発見と介入の必要性を強調する。
主な方法:
- 長期MPH療法を受けているADHDの12歳女性の症例提示。
- 肝酵素(トランスアミナーゼ、γ-GTP)を含む生化学的評価。
- 他の原因を除外した後の薬物誘発性肝炎の確認のための肝生検。
主要な成果:
- MPH治療開始から3.5年後に著明な肝酵素上昇が認められた。
- 肝生検により薬物誘発性肝炎が確認された。
- MPHの中止により肝酵素値は正常化した。
結論:
- 長期MPH療法では、小児患者の肝機能の定期的な検査が必要である。
- 肝酵素上昇の早期特定は、MPHの速やかな中止のために極めて重要である。
- タイムリーな介入は、肝障害を逆転させ、肝不全への進行を防ぐことができる。
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