心率变化和血液动力学功能在患有多变性心肌病的个体
Alaa I Alyahya1,2,3, Sarah J Charman1,2, Nduka C Okwose1,2,4
1Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.
Clinical physiology and functional imaging
|June 9, 2023
概括
心率变化 (HRV) 在缩性心肌病 (HCM) 中显示出阴道活动增加,并与外围抵抗有关. 这项研究强调HRV是评估HCM患者自主功能的一种可行的方法.
科学领域:
- 心脏病学 心脏病学
- 自主神经系统功能 自主神经系统功能
- 心血管生理学心血管生理学
背景情况:
- 心率变化 (HRV) 量化了心脏自主功能.
- 增高性心肌病变 (HCM) 是一种影响心脏结构和功能的疾病.
- 了解自主功能障碍对于管理HCM至关重要.
研究的目的:
- 为了比较患有HCM和健康对照个体之间的HRV和血液动力学功能.
- 研究HCM患者的HRV参数和血液动力学变量之间的关系.
主要方法:
- 28名HCM患者和28名匹配的健康对照接受了5分钟HRV和血液动力学评估.
- 使用生物阻抗技术在休息的卧卧状态下进行测量.
- 分析了频域HRV指数 (LF,HF,LF/HF比率) 和RR间隔.
主要成果:
- 与对照组相比,患有HCM的个体表现出更高的高频 (HF) 功率 (表明动活动增加) 和较低的RR间隔.
- HCM患者的中风体积指数 (SV) 和心脏指数降低,以及总外周阻力 (TPR) 升高.
- 在HCM组中,高频功率与SV (r=-0.46) 和TPR (r=0.28) 有显著的相关性.
结论:
- 短期频域HRV指数为评估HCM患者自主功能提供了一种实用的方法.
- 增加的阴道活动,反映在HF功率中,在HCM中观察到,并与改变的外周电阻有关.
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