症状のない大動脈狭窄症の患者の結果を予測するためのリスクスコア
Jean-Luc Monin1, Patrizio Lancellotti, Mehran Monchi
1Department of Cardiology, Henri Mondor Hospital, 51 avenue De Lattre de Tassigny, 94010 Créteil, France. jean-luc.monin@hmn.aphp.fr
Circulation
|June 24, 2009
まとめ
新しいリスクスコアは,症状のない重度の大動脈狭窄症の患者の症状や有害事象を予測するのに役立ちます. このツールは,早期の外科介入から利益を得ることができる個人を特定するのに役立ちます.
科学分野:
- 心臓病学 心臓病学
- バルブ性心疾患 バルブ性心疾患とは
- 医療リスクの階層化
背景:
- 症状のない重度の大動脈狭窄症の管理は困難です.
- 症状の発症や有害事象を予測することは,適切な介入に不可欠です.
研究 の 目的:
- 症状のない重度の大動脈狭窄症の継続的なリスクスコアを開発し,検証する.
- 中期的な有害結果のリスクが高い患者を特定する.
主な方法:
- 症状のない重度の大動脈狭窄症の患者107人を対象とした前向きなコホート研究.
- 独立した予測要因を用いたリスクスコアの開発:女性の性別,最大主動脈噴射速度,B型ナトリウレチンペプチド.
- 107人の患者の独立したコホートでの検証.
主要な成果:
- リスクスコアは独立して有害な結果 (死亡または症状による大動脈弁置換) を予測した.
- 20ヶ月のイベントフリー生存率は,スコア四分位数 (80%対7%) において有意に変化しました.
- ROC曲線によって示された高い予測精度 (開発と検証コホートでは0.90と0.89).
結論:
- 開発されたリスクスコアは,無症状の重度の大動脈狭窄の結果を予測する可能性を示している.
- このスコアは,早期の外科介入から恩恵を受ける可能性がある患者を選択するのに役立ちます.
- 臨床実施のためにさらなる検証が推奨されています.
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