腎機能,タンパク質尿,有害な結果との関連
Brenda R Hemmelgarn1, Braden J Manns, Anita Lloyd
1Department of Medicine, University of Calgary, Calgary, Alberta, Canada. brenda.hemmelgarn@albertahealthservices.ca
JAMA
|February 4, 2010
まとめ
タンパク質尿症は,正常な腎機能 (eGFR) にもかかわらず,死亡や腎不全などの有害な結果のリスクを大幅に増加させます. これは,よりよい患者管理のために,プロテイン尿を慢性腎疾患リスク評価に組み込む必要性を強調しています.
科学分野:
- ネフロロジーはネフロロジーを用います.
- 心臓病学 心臓病学
- 公衆衛生は公衆衛生である.
背景:
- 現在の慢性腎臓病 (CKD) の段階化は,推定されるグルメルフィルタレーション率 (eGFR) に基づいているが,リスク層分化のプロテイン尿を統合していない.
- タンパク質尿は,CKD患者における有害な臨床結果と独立して関連しています.
研究 の 目的:
- 減少したGFRとタンパク質尿と不良な臨床結果との組み合わせの関連性を調査する.
- プロテイン尿が,一般成人集団におけるEGFRレベルに関連するリスクを変化させるかどうかを判断する.
主な方法:
- カナダのアルバータ州で920,985人の成人を対象としたコミュニティベースのコホート研究 (2002年~2007年).
- eGFRとプロテインウリア (尿検査棒またはアルバミン-クレアチニン比率 (ACR)) の測定のための使用された実験室の登録データ.
- すべての原因による死亡率,心筋梗塞,腎不全の進行を含む評価されたアウトカム.
主要な成果:
- 高濃度のタンパク質尿は,eGFRから独立して,全因死亡率,心筋梗塞,腎不全の増加と関連していました.
- 濃度の高いタンパク質尿とeGFR ≥60mL/min/1.73m2を有する個人は,適度なeGFRとタンパク質尿のない個人に比べて死亡リスクが2倍以上であった.
- ACRおよび末期性腎疾患などの他の不良結果についても同様の関連性が見られた.
結論:
- タンパク質尿は,CKDにおける有害な結果の独立した予測因子です.
- 死亡率,心筋梗塞,腎不全のリスクは,特定のeGFRでより高いタンパク質尿レベルによって増幅されます.
- 臨床ガイドラインは,包括的なCKDリスク分層化のためのタンパク質尿の評価を組み込むことを検討する必要があります.
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