2~9歳児の ABO不適合心臓移植:移植における新しいパラダイム?
Paolo Hollis1, Richard Issitt2, Sebastiano A G Lava1
1Department of Cardiothoracic Transplantation, Great Ormond Street Hospital, London, UK.
まとめ
2歳から9歳の子どもには安全で効果的であり,ドナーの選択肢を広げています. この年齢層のほとんどの子供には低アイソヘマグルーチニンの位数があり,ABOi移植が可能になり,世界中のドナーの利用可能性を高めます.
科学分野:
- 小児心臓科
- 移植免疫学
- 臓器提供
背景:
- 限られたドナー臓器は 子どもの心臓移植を妨げます
- 乳児に対するABO不適合性心臓移植はドナープールを拡大しました.
- 2歳以上の小児に対するABOi心臓移植の定期的な導入は,安全性上の懸念のため,依然として制限されています.
研究 の 目的:
- 2~9歳児におけるABO不適合心臓移植の安全性と有効性を評価する.
- この年齢層において,ABOi移植に適したイソヘマグルーチニン位数の有病率を決定する.
- 小児患者のドナー可用性に対する ABOi心臓移植の影響を評価する.
主な方法:
- 2013年1月から2023年6月までの小児心臓移植の遡及分析
- リストアップ時に抗Aおよび/または抗Bの位数測定
- 移植後の患者の生存率と拒絶率の評価
主要な成果:
- 2. 5~8. 9歳の14人の子どもがABOi心臓移植を受けた.
- 14人の患者全員のフォローアップは良好でした (中位は4. 9年).
- リストに記載された子供の86%は,ABOi移植を考慮する値である1:32のイソヘマグルチニン位数を持っていた.
結論:
- 9歳までの子供には安全で有効な選択肢です.
- 小児のほとんどは,ABOi移植に適した同血凝固素の位数を持っています.
- これらの発見は,世界中の小児心臓移植のドナーの可用性を大幅に増加させる可能性があります.
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