短期心率变化:一种潜在的方法来评估老年人的脆弱性
Gevesh Chand Dewangan1,2, Sunny Singhal1,3, Dinu S Chandran4
1Department of Geriatric Medicine All India Institute of Medical Sciences New Delhi India.
Aging medicine (Milton (N.S.W))
|September 5, 2024
概括
心脏自主调节,通过心率变化 (HRV) 来衡量,与非脆弱个体相比,在脆弱的老年人中显著减少. 这表明自主功能逐渐下降,脆弱性增加.
科学领域:
- 老年学是指老年学的学科.
- 心脏病学 心脏病学
- 自主神经科学 自主神经科学
背景情况:
- 虚弱是一种老年综合征,其特征是生理储备下降和脆弱性增加.
- 自主神经系统 (ANS) 功能障碍与衰老和虚弱有关.
- 心率变化 (HRV) 是一种非侵入性测量ANS活动的方法.
研究的目的:
- 在印度老年人中使用短期HRV评估心脏自主调制.
- 为了比较不同脆弱状态 (脆弱,前脆弱,非脆弱) 的HRV参数.
主要方法:
- 210名60岁以上的成年人被分为脆弱,脆弱前和非脆弱组 (每组n=70) 使用洛克伍德脆弱指数.
- 从5分钟的心电图中评估了短期HRV,使用时间,频率和非线性分析.
- 在脆弱性组之间进行了统计比较.
主要成果:
- 与脆弱前和非脆弱组相比,脆弱的个体表现出明显较低的副交感 (SDNN,rMSSD,HF功率) 和交感 (LF功率) 调制.
- 虚弱指数与所有HRV参数有负相关性,表明自主功能下降与虚弱增加.
- 在交 - 阴道平衡比率 (LF/HF) 中没有发现显著差异.
结论:
- 脆弱的老年人表现出减少的交感和副交感调制,这表明广泛的自主功能障碍.
- 自主调制随着脆弱程度的增加而逐渐下降.
- 尽管调制减少了,但在脆弱的个体中似乎保持了平衡的交感状态.
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