入院患者における低ナトリウム血症補正の標的化のランダム化試験
Julie Refardt1,2,3, Laura Potasso1,2,4, Anissa Pelouto3
1Departments of Endocrinology, Diabetology, and Metabolism, University Hospital Basel, University of Basel, Basel, Switzerland.
NEJM evidence
|February 24, 2026
まとめ
入院患者における慢性低ナトリウム血症の標的化補正は、ナトリウムレベルを改善したが、30日死亡率または再入院率を有意に低下させなかった。この研究は、この状態の慎重な管理の重要性を強調している。
科学分野:
- 腎臓病学;内科学;臨床試験
背景:
- 慢性低ナトリウム血症は、転倒、認知障害、死亡率などの有害な転帰と関連している。;低ナトリウム血症がこれらの問題を引き起こすのか、それとも基礎疾患の重症度を示すのかは不明なままである。
研究 の 目的:
- 低ナトリウム血症の標的化補正と通常ケアが死亡率および再入院に及ぼす影響を評価する。;低ナトリウムレベルの積極的な管理が患者の転帰を改善するかどうかを評価する。
主な方法:
- 血漿ナトリウム値が130 mmol/l未満の入院患者2173名を対象としたランダム化、対照、多施設共同試験。;参加者は、低ナトリウム血症に対する多面的な標的化補正介入または通常ケアのいずれかに割り付けられた。;主要転帰は、30日以内の死亡または再入院の複合リスクであった。
主要な成果:
- 標的化補群では、正常なナトリウムレベルの達成率が高かった(60.4%対46.2%)。;30日死亡率および再入院の複合アウトカムに群間で有意差は観察されなかった(20.5%対21.8%)。;過剰補正は少数の患者で発生したが、浸透圧性脱髄症の症例はなかった。
結論:
- 慢性低ナトリウム血症の標的化補正は、正常ナトリウム血症の率を増加させる。;この介入は、30日死亡率および再入院の複合アウトカムの有意な減少につながらなかった。
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