血小板輸血療法 血小板輸血療法 血小板輸血療法 輸血後1時間の増加は,HLAにマッチした製剤の必要性を予測する上で価値があります
JAMA
|February 1, 1980
まとめ
輸血後1時間の血小板数は,がん患者のアル免疫を予測することができます. より高い修正カウントインクリメント (CI) は抗体がないことを示し,より低いCIは細胞毒性抗体を示し,HLAマッチした血小板の使用をガイドします.
科学分野:
- 血液学 ヘマトロジ
- 免疫学 免疫学とは
- 腫瘍学 腫瘍学
背景:
- 血小板減少性がんの患者はしばしば血小板輸血を必要とします.
- 急速な血小板破壊は,アロ免疫または他の臨床的要因のために起こる可能性があります.
- 標準的な18〜24時間のインクリメントは,時として輸血の有効性を評価するのに不十分です.
研究 の 目的:
- 輸血後1時間の血小板数値が,アロ免疫を他の急速な血小板破壊の原因と区別できるかどうかを評価する.
- HLA-マッチした血小板の必要性を予測する1時間の補正カウントインクリメント (CI) の有用性を決定する.
主な方法:
- トロンボサイトペニックがん患者の73人の79人の血小板輸血の分析.
- 1時間の補正されたカウントインクリメントの計算 (CI = [輸血後のカウント - 輸血前のカウント] × 体表面積 [平方メートル] / 輸血血小板 × 10^9).
- 1時間のCIとリンパ球毒性抗体の存在とHLAマッチング輸血に対する応答の相関.
主要な成果:
- 1時間のCI >= 10x10^3 / マイクロリットルは,リンパ細胞毒性抗体の欠如と関連していました.
- 1時間のCI <10x10^3 /マイクロリットルは,一般的に高レベルの細胞毒性抗体と相関しています.
- HLAマッチングの輸血は,初期1時間のCIが>=10x10^3 / マイクロリットルであった場合の利益を示さなかったが,他のケースでは改善のステップを示した.
結論:
- 輸血後1時間の血小板数は,免疫を予測するためのシンプルで貴重な検査です.
- この検査は,HLA抗体の存在と相関し,HLAマッチングの血小板から恩恵を受ける患者を特定するのに役立ちます.
- それは,HLA-マッチングの血小板輸血の不必要な経験的使用を避けるのに役立ちます.
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