短期間の血圧変動指標の পদ্ধতি論的洞察と相関関係
Sandra C Fuchs1,2, Guilherme S Procianoy2, Marcelo B Lucca1
1Postgraduate Program of Cardiology, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
Blood pressure
|December 19, 2025
まとめ
標準偏差(SD)、変動係数(CV)、平均実変動(ARV)は、短期間の血圧変動(BPV)の測定において相互利用可能である。時間率指数(TRI)は、異なる構成概念を反映しており、予後価値について別途評価が必要である。
科学分野:
- 心臓病学; 高血圧研究; 睡眠医学
背景:
- 血圧変動(BPV)は、心血管イベントの重要な独立した危険因子です。SD、CV、ARV、TRIなどの短期間BPV指標は、24時間ABPMから導出されます。これらの異なるBPV指標間の相互関係は、十分に探求されていません。
研究 の 目的:
- 短期間のBPV指標であるSD、CV、ARV、およびTRIの間の相関と一貫性を調査すること。これらの指標が心血管アウトカム研究で相互に利用できるかどうかを判断すること。
主な方法:
- 閉塞性睡眠時無呼吸を伴う高血圧患者の24時間ABPMからの収縮期BPV指標の分析。相関と一貫性を評価するためのピアソン相関(r)およびクラス内相関(ICC)の計算。40歳以上の65人の参加者の評価。
主要な成果:
- SD、CV、ARVは、高い線形相関と中程度から高いICCの一貫性を示しました。TRIは、SD、CV、またはARVとの相関が弱く、ICCの一貫性もありませんでした。これらの所見は、閉塞性睡眠時無呼吸を伴う高血圧患者のコホートで観察されました。
結論:
- SD、CV、ARVは、短期間のBPVと心血管アウトカムの評価において相互に利用できる可能性が高いです。TRIはBPVの異なる側面を表しており、その予後価値については別途検討が必要です。さらなる研究により、心血管リスク評価におけるTRIの明確な臨床的有用性が明らかになる可能性があります。
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