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  1. ホーム
  3. 低リスクの女性における冠動脈結晶の流行と予後的な影響:メタ解析
  1. ホーム
  3. 低リスクの女性における冠動脈結晶の流行と予後的な影響:メタ解析

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Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
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低リスクの女性における冠動脈結晶の流行と予後的な影響:メタ解析

Maryam Kavousi1, Chintan S Desai2, Colby Ayers3

  • 1Department of Epidemiology, Erasmus University Medical Center, Rotterdam, the Netherlands.

JAMA
|November 16, 2016

PubMed で要約を見る

まとめ
この要約は機械生成です。

心血管疾患 (CVD) のリスクが低い女性の冠動脈カルシウム (CAC) 検査は,リスクが高い女性を特定します. CACの存在はCVDのリスクを大幅に高め,従来の要因を超えてリスク予測をわずかに改善します.

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科学分野:

  • 心臓病科
  • 予防 医療
  • 医療用イメージング

背景:

  • 現在の心血管疾患 (CVD) 予防ガイドラインは,低リスクの女性に対して冠動脈カルシウム (CAC) 検査の使用に関する限られたガイドラインを提供します.
  • この集団におけるCVDリスク層分化の精錬におけるCAC検査の有用性は不明である.

研究 の 目的:

  • 初期に低リスクに分類された女性の心血管疾患リスクの推定と分層化におけるCAC検査の有効性を評価する.
  • 既定のリスク因子を超えて,CACが予後値を追加するかどうかを判断する.

主な方法:

  • 10年間の動脈硬化性CVD (ASCVD) リスクが7. 5%未満の女性を含む5つの大きな集団を対象としたメタ分析.
  • ダラス心臓研究,フレーミングハム心臓研究,ハインツ・ニックスドルフ・リコール研究,多民族性動脈硬化症研究,ロッテルダム研究からのデータをまとめました.
  • 冠動脈カルシウム (CAC) のスコアはコンピュータ断層撮影を用いて評価され,ASCVDの発生は7. 0から11. 6年のフォローアップ期間で追跡された.

主要な成果:

  • 低リスクの女性6739人のうち,CACが検出できたのは36. 1%であった.
  • CACの存在は,ASCVDイベントの2倍以上のリスクに関連していた (HR,2. 04; 95% CI,1. 44- 2. 90).
  • CACをリスクモデルに組み込むことで,リスク予測の精度が向上した (C統計は0. 73から0. 77に増加し,cNRI=0. 20).

    • 結論:

    • CACは低リスクの女性の約3分の1に広がり,ASCVDリスクが著しく高い個人を特定します.
    • CAC検査は,従来の危険因子のみと比較して,予後精度がわずかに改善されています.
    • この集団におけるCAC検査の臨床的有用性と費用対効果を決定するために,さらなる研究が必要である.