DECAF のランダム化臨床試験で,心房細動を減らすために,カフェインを含むコーヒーの摂取または禁酒
Christopher X Wong1,2, Christopher C Cheung3, Gabrielle Montenegro1
1Division of Cardiology, University of California San Francisco.
JAMA
|November 9, 2025
まとめ
カフェインを含んだコーヒーの摂取は,平均1杯で,控えめに比べ,心房細動 (AF) の再発のリスクが低下した. このランダム化試験は コーヒーが AF患者にとって 鼓動不良を誘発するという考えに 異議を唱えます
科学分野:
- 心臓病科
- 臨床試験
- 電気生理学
背景:
- カフェイン入りのコーヒーは 鼓動不良を誘発する
- 心房細動 (AF) は 常見 の 心拍 乱 症 で,コーヒー は 広く 消費 さ れ て いる 飲み物 です.
- カフェイン入りコーヒーとAF再発に関する以前のランダム化試験は欠けています.
研究 の 目的:
- カフェイン入りコーヒーの摂取と 禁断の効果を研究する.
- AF患者におけるカフェインを含むコーヒーの適度な毎日の摂取の安全性と有効性を評価する.
主な方法:
- 200人の成人を対象とした前向きなオープンなランダム化臨床試験です.
- 参加者はランダムに1対1に分けられ,カフェインを摂取するか,6ヶ月間カフェインを全く摂取しないようにしました.
- 主なエンドポイントは,臨床的に検出されたAFまたは心房の振動の再発でした.
主要な成果:
- カフェインを摂取したグループ (47%) は,禁酒グループ (64%) と比較して,AFまたは心房の再発率が低かった.
- カフェインを含むコーヒーの摂取は,再発のリスクが39%低かった (HR,0.61).
- 2つのグループ間で有害事象の有意な違いは認められなかった.
結論:
- カフェインを含んだコーヒーを毎日適度に飲むと AFの再発リスクが低下する可能性があります.
- この発見は コーヒーが AF患者で 鼓動不良を起こすという 伝統的な見解に異議を唱えるものです
- この関連性を裏付ける特定のメカニズムをさらに研究してもよいでしょう.
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