高齢者における脈圧の上昇と心不全のリスク
C U Chae1, M A Pfeffer, R J Glynn
1Department of Medicine, Brigham and Women's Hospital, Boston, MA 02215-1204, USA. chae.claudia@mgh.harvard.edu
JAMA
|February 24, 1999
まとめ
動脈の硬化を測定する脈圧は,高齢者の kongestive heart failure (CHF) のリスクを独立して予測します. 脈圧の上昇は,心筋不全を発症する可能性を大幅に高めます.
科学分野:
- ゲロントロジーはゲロントロジーの学科です.
- 心血管医学 心血管医学
- エピデミオロジー エピデミオロジー
背景:
- 動脈の硬さは,年齢とともに自然に進行する.
- 脈圧は,動脈硬化の重要な指標として機能します.
- 動脈の硬さの増加は,高齢者の閉塞性心不全 (CHF) などの心血管合併症に関連しています.
研究 の 目的:
- 脈圧と充血性心不全 (CHF) の発症リスクとの関連を将来的に調査する.
主な方法:
- 展望的なコホート研究デザインが採用されました.
- この研究では,イーストボストン・シニア・ヘルス・プロジェクト (East Boston Senior Health Project) の1621人の高齢者 (平均年齢77.9歳) が参加しました.
- 参加者は平均3.8年間追跡され,CHFの発生率は,退院診断と死亡証明書によって決定されました.
主要な成果:
- 脈圧は,複数の混同要因を調整した後でも,CHFの独立した予測因子として特定されました.
- 脈圧が10mmHg上昇すると,心臓梗塞のリスクが14%上昇する (P = .003).
- 脈圧の最高三位数 (>67 mm Hg) の個人は,最低三位数 (<54 mm Hg) の個人に比べて,心臓梗塞のリスクが55%高かった.
結論:
- 脈圧は,高齢者集団における充血性心不全 (CHF) リスクの有意かつ独立した予測因子である.
- この容易に測定可能な血液動力学パラメータは,高齢者の心血管健康のための貴重な予後情報を提供します.
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