血小板機能は,急性心筋梗塞患者の心筋損傷を予測する
Martin Frossard1, Ingrid Fuchs, Judith M Leitner
1Department of Clinical Pharmacology, Medical University, Vienna, Austria.
Circulation
|August 18, 2004
まとめ
コラーゲンアデノシンジフォスファート閉塞時間 (CADP-CT) で測定される血小板機能上昇は,心筋梗塞 (MI) の患者で上昇しています. 短いCADP-CTは,より大きな心損傷を予測し,急性冠動脈症候群におけるリスクの分層化を助けます.
科学分野:
- 心臓病学 心臓病学
- 血液学 ヘマトロジ
- クリニカル診断士
背景:
- 血小板活性化は,急性冠動脈症候群の重要な特徴である.
- 血小板機能の改善は,これらの患者の心筋損傷と関連している可能性があります.
研究 の 目的:
- 高シャー率の下での血小板機能が,心筋梗塞 (MI) の患者で強化されているかどうかを判断する.
- 血小板機能が心筋損傷の程度を予測するかどうかを評価する.
主な方法:
- 血小板機能分析器 (PFA-100) を使用した急性胸痛の患者216人の前向きな検査.
- コラーゲンアデノシンジフォスファート閉塞時間 (CADP-CT) とコラーゲンエピネフリン-CTの測定.
- クレアチンキナーゼ (CK-MB) とトロポニンT (TnT) レベルによる心筋損傷の評価.
主要な成果:
- CADP-CTは,他のグループと比較して,MI患者,特にSTセグメント上昇MI (STEMI) で著しく短かった.
- 短いCADP-CTとコラーゲン・エピネフリン-CTは,独立して心筋損傷を予測した.
- 最下位CADP-CTクォーティルのMI患者は,CK-MBとTNTのレベルが3倍高かった.
結論:
- STEMIの患者は,高い切断率の下,血小板機能が著しく向上したことを示しています.
- CADP-CTは,心臓発作の重度の独立予測であり,心臓死滅マーカーによって示されます.
- PFA-100の血小板機能検査は,心筋梗塞患者のリスク分層化に役立ちます.
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