軽度の冠動脈疾患と内皮機能不全の患者の長期追跡調査
J A Suwaidi1, S Hamasaki, S T Higano
1Center for Coronary Physiology and Imaging, Division of Cardiovascular Diseases, and Department of Internal Medicine, Mayo Clinic and Mayo Foundation, Rochester, MN 55905, USA.
Circulation
|March 7, 2000
まとめ
重度の冠動脈内皮機能不全の患者は,重大な阻害がない場合でも,心臓発作や死亡などの心臓イベントのリスクが高くなります. これは,内皮の機能を強調しています.
科学分野:
- 心臓病学 心臓病学
- 血管生物学 血管生物学
- 動脈硬化症の研究研究
背景:
- 冠動脈内皮機能不全は,アセチルコリンに対する異常な血管収縮を伴う.
- これは冠動脈動脈硬化症の早期兆候と考えられています.
- 内皮機能レベルに基づく患者のアウトカムに関するデータは限られている.
研究 の 目的:
- 軽度の冠動脈疾患の患者の臨床的アウトカムを評価するために,彼らの内皮機能によって層分化.
- 冠動脈内皮機能不全の予後値を調査するために.
主な方法:
- 軽度の冠動脈疾患を有する157人の患者は,アセチルコリン,アデノシン,ニトログリセリンによる冠動脈血管反応性検査と,冠動脈内超音波検査を受けた.
- 患者は,アセチルコリン反応に基づいて,正常 (n=83),軽度 (n=32) および重度 (n=42) の内皮機能不全グループに分類されました.
- 結果は,平均28ヶ月のフォローアップ期間で追跡されました.
主要な成果:
- 正常または軽度の内皮機能不全の患者では心臓イベントは発生しませんでした.
- 重度の内皮機能不全の患者の14%は,心筋梗塞,再血管化,または心臓死 (P<0.05) を含む心臓イベントを経験しました.
- 重度の機能障害群では,合計10件の心臓発作が記録されました.
結論:
- 閉塞性冠動脈疾患とは無関係な重度の内皮機能不全は,不良心疾患のリスクが著しく高いことと関連しています.
- これらの発見は,冠動脈内皮機能不全が冠動脈動脈硬化症の進行に決定的な役割を果たしていることを示唆しています.
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