高齢者の腎機能と心不全のリスク:前向きなコホート研究の結果

Oyunchimeg Buyadaa¹, Rory Wolfe², Andrew M Tonkin³

¹School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia Oyun.Buyadaa@monash.edu.

|August 22, 2025

まとめ

尿中のアルブミンとクレアチニンの比率 (UACR) の上昇によって示されるアルブミヌーリアは,高齢者の心不全 (HF) の入院と死亡リスクを有意に増加させる. 低評価のグルメルフィルタレーション率 (eGFR) もHFのリスクを高め,高評価のeGFRは

科学分野:

心臓病科
腎臓科
高齢者医療

背景:

腎臓機能障害は心血管疾患の重要な危険因子として認識されつつあります
UACRやeGFRのような腎機能マーカーの評価は,心不全 (HF) のリスクが高い個人を特定するのに役立ちます.

研究の目的:

腎機能障害 (UACRとeGFR) と心臓機能不全 (HF) の間の関連性を,高齢者の大きなコホートで調査する.
アルブミヌリアと低または高 eGFRが有害なHFアウトカムを予測するかどうかを判断する.

主な方法:

ASPREE試験と観察試験の17,834人の参加者を分析した.
HF入院,HF死亡,HF再入院の危険比率 (HRs) を計算するためにコックスモデルを使用した.
評価されたベースラインアルブミヌーリア (UACR) と推定されたグルメルフィルタレーション率 (eGFR).

主要な成果:

アルブミヌリア (UACR ≥3. 0 mg/ mmol) は,HF入院リスクの47%増加 (HR1. 47) とHF死亡リスクの55%増加 (HR1. 55) と関連していました.
低濃度 (< 60 mL/ min/ 1. 73 m2) と高濃度 (> 90 mL/ min/ 1. 73 m2) の両方でHFのリスクが増加したが,高濃度 eGFRとの関連は統計的に有意ではなかった.
アルブミヌリアはまた,HF再入院のリスクを増加させた (HR1. 30).

結論:

アルブミヌリアは,高齢者の不良心の結果の有意な予測因子であり,HFリスク評価におけるその使用を支持する.
低評価のグルメルフィルタレーション率 (eGFR) は,HF入院および死亡のリスクの増加と関連しています.
高いeGFRとHFの結果との関連は,さらなる調査を必要とし,残留混同の影響を受けることがあります.

キーワード:

コホート研究流行病学心臓不全

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