夜間頻尿:心臓が夜中にあなたを目覚めさせるとき
Laure Van de Steen1, Mohammad Hazique2, Mauro Van den Ende3
1Department of Urology, ERN-eUROGEN accredited centre, Ghent University Hospital, Ghent, Belgium. laure.vandesteen@uzgent.be.
World journal of urology
|January 7, 2026
まとめ
夜間頻尿、すなわち夜間の頻尿は、心臓の充満圧の上昇と関連している。本研究では、肺動脈楔入圧(PAWP)および右房(RA)圧が高いほど、夜間頻尿の重症度と相関することが判明し、体液過剰の兆候であることを示唆している。
科学分野:
- 循環器病学
- 腎臓病学
- 内科学
背景:
- 夜間頻尿は、心血管系の問題と関連することが多い一般的な症状である。
- これまでの研究では、夜間頻尿、心不全、および体液過剰との関連が示唆されている。
- この関連性に関する直接的な血行動態学的証拠は限られている。
研究 の 目的:
- 左心室および右心室の充満圧と夜間頻尿の重症度との関係を調査すること。
- 特に右心カテーテル検査を受けた患者における肺動脈楔入圧(PAWP)および右房(RA)圧を検討した。
主な方法:
- 右心カテーテル検査を受けた成人患者74名を対象とした前向き観察研究。
- 夜間頻尿の頻度は、構造化された面接によって評価され、順序尺度としてモデル化された。
- スピアマンの相関および順序ロジスティック回帰を用いて、臨床的要因で調整した充満圧と夜間頻尿の重症度との関連を分析した。
主要な成果:
- 肺動脈楔入圧(PAWP)は夜間頻尿の重症度と有意な関連を示した(ρ=0.35、p=0.003)。
- PAWPが1 mmHg上昇するごとに、夜間の排尿頻度が高くなるオッズが7-10%増加した。
- 右房(RA)圧および右室拡張末期圧(RVEDP)は、調整後モデルにおいて、夜間頻尿の重症度と独立して関連していた。
結論:
- 左心室および右心室の充満圧、特にPAWPおよびRA圧は、夜間頻尿の重症度と独立して関連していた。
- 本研究の結果は、夜間頻尿が血行動態のうっ血および体液過剰の臨床的指標であることを支持する。
- 夜間頻尿は、潜在的な心機能不全を示唆する可能性があり、臨床的注意が必要である。
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