夜間低血圧は,2型糖尿病患者の慢性腎疾患の予後悪化と関連している
Sarah Driendl1, Stefan Stadler2, Mathias Baumert3
1Department of Internal Medicine II, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany. sarah-maria.driendl@ukr.de.
Cardiovascular diabetology
|August 31, 2025
まとめ
2型糖尿病患者の慢性腎臓病 (CKD) の悪化の新たな危険因子である. 高いT90 (酸素飽和度が90%未満の時間) は,非常に高いリスクのCKDを発症するリスクを大幅に増加させます.
科学分野:
- 腎臓科
- 心臓病科
- 内分泌学
- 睡眠医学
背景:
- 低血球過濾率 (eGFR) と高いアルブミヌリアは有害な結果と関連しています.
- 慢性腎疾患 (CKD) の進行は,2型糖尿病 (T2D) の重要な懸念事項である.
- 夜間低血圧 (NHB) は,CKDの予後に関連して広く研究されていません.
研究 の 目的:
- 2型糖尿病患者におけるNHBとCKDの予後悪化との関連を調査する.
- 夜間の酸素不飽和が非常に高いリスクのCKDの発展を予測するかどうかを判断する.
- 糖尿病患者の腎臓に悪影響を及ぼす新たな危険因子を特定する.
主な方法:
- T2D患者のDIACORE前向きなコホート研究からの夜間酸素測定データの分析.
- 90%以下の酸素飽和度 (T90) の累積時間を用いてNHBの定量化.
- KDIGO分類基準 (eGFRとアルブミヌリアレベル) に基づく非常に高リスクCKDの定義
- 既知のCKDリスク因子に調整されたロジスティック回帰分析を用いて,NHBと非常高リスクCKDとの関連性を評価した.
主要な成果:
- この研究では857人のT2D患者 (41%が女性,平均年齢65歳) が参加しました.
- 追跡期間中,患者の8. 4%が非常に高いリスクのCKDを発症した.
- T90の最高四分位にある患者は,最も低い四分位と比較して,非常に高いリスクのCKDを発症するリスクが3. 0倍増加しました (OR2. 96, p=0. 014).
- NHBは,複数のリスク因子を調整した後でも,非常に高いリスクのCKDの発生率の増加と独立して関連していました.
結論:
- 夜間低血圧 (NHB) は,T2D患者におけるCKDの進行の新たな危険因子として特定されています.
- これらの発見は,T90がCKDの悪化を防ぐために臨床的に重要なターゲットである可能性があることを示唆しています.
- CKDの予防のためにT90を減らす臨床的有用性を確認するために,さらなる研究が必要である.
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