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  1. ホーム
  2. 研究分野
  3. 生物医学と臨床科学
  4. 心血管医学と血液学
  5. 心臓病 (心血管疾患を含む)
  6. 心筋損傷と心筋梗塞を区別するための心筋トロポニン値と運動学

心筋損傷と心筋梗塞を区別するための心筋トロポニン値と運動学

Ryan Wereski1, Dorien M Kimenai2, Caelan Taggart1

  • 1British Heart Foundation Centre for Cardiovascular Science (R.W., C.T., D.D., K.K.L., M.T.H.L., A.B., T.F., A.A., A.R.C., N.L.M.), University of Edinburgh, UK.

Circulation
|June 25, 2021

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PubMed で要約を見る

まとめ
この要約は機械生成です。

発現時の心臓トロポニンのレベルは,第1型心筋梗塞と他の心筋損傷の原因を確実に区別することはできません. しかし,トロポニン濃度の変化は,心筋梗塞の診断の正確性を向上させる可能性を示しています.

科学分野:

  • 心臓病科
  • バイオマーカー
  • 診断 の 正確 さ

背景:

  • 現在のガイドラインでは 心筋梗塞の診断値として 99 パーセントを推奨しています
  • いくつかのガイドラインでは,発症時の心筋梗塞を判断するために,より高いトロポニン値が推奨されています.
  • トロポニン濃度の大きさと心筋損傷と心臓発作の原因を区別する変化の有用性は不明である.

研究 の 目的:

  • 心臓のトロポニン濃度と時間の経過による変化が,1型心筋梗塞と他の心筋損傷の原因を区別できるかどうかを調査する.
  • 1型心筋梗塞の診断のための異なるトロポニン値の陽性予測値と特異性を評価する.

主な方法:

  • STセグメント上昇性心筋梗塞の疑わしい急性冠動脈症候群の46, 092人の患者を含む多センターランダム化対照試験の二次分析.
  • 心筋損傷と心臓発作の患者の間で,高感度心筋トロポニンI濃度の比較
  • 性別特有の99パーセント上限基準値とルールインの値 (64ng/Lと5倍上限基準値) での陽性予測値と特異性の決定

主要な成果:

  • トロポニン濃度が99パーセントを超えた患者は18%で,1型心筋梗塞は,心筋梗塞と診断された患者の50%で発生しました.
  • トロポニンの初期濃度は,第1型心筋梗塞,第2型心筋梗塞および急性/慢性心筋損傷において類似した.
  • トロポニン濃度の絶対値,相対値,および変化率は,第1型心筋梗塞において有意に高かった (P< 0. 001).
  • トロポニン濃度とその変化を併用すると,トロポニン濃度単独と比較して診断差別が改善された (AUC 0. 661 対 0. 613).

結論:

  • 発現時の心臓トロポニンの濃度は,第1型心筋梗塞と他の心筋損傷の原因を区別するのに不十分である.
  • トロポニン運動量 (時間の経過による変化) は,心筋梗塞の差別化に役立つ情報を提供します.
  • トロポニンの濃度だけでは,他の臨床的要因や運動の変化を考慮せずに管理決定を導くべきではありません.
キーワード:
運動学心筋梗塞テストの予測値トロポニン

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