在健康个体中,心率变化和心声学心脏功能的心脏指数之间的关系
Mushidur Rahman1, Sophie L Russell1, Nduka C Okwose1
1Research Centre for Health and Life Sciences, Institute for Health and Wellbeing, Coventry University, Coventry, UK.
心率变化 (HRV) 测量,包括高频功率 (HF) 和连续RR间隔差异 (RMSSD) 的平方根平均值,与健康成年人左心室缩功能相关. 这项研究强调了HRV作为潜在的心脏健康的非侵入性指标.
科学领域:
- 心脏病学 心脏病学
- 生理学 生理学 生理学
背景情况:
- 心率变化 (HRV) 反映了心脏的自主神经系统调制.
- 心声图提供了对心脏结构和功能的详细评估.
- 了解HRV与心声学指数之间的关系对于非侵入性心脏健康评估至关重要.
研究的目的:
- 调查短期休息心率变化 (HRV) 测量与健康个体心脏功能回声心脏学指数之间的关联.
- 为了确定特定的HRV参数是否与左心室和右心室缩功能以及左心房应变相关.
主要方法:
- 30名健康成年人接受了休息HRV评估 (时间和频率域) 和带有斑点跟踪的胸前心声扫描.
- HRV指标包括R-R间隔,RMSSD,SDNN,LF,HF,LFnorm和HFnorm.
- 心声检查评估了LVEF,LV-GLS,RV-GLS,LAres,LAcon,以及LACT. 这就是心声检查.
主要成果:
- 在高频功率 (HF) 和左心室全球纵向应变 (LV-GLS) 之间观察到显著的负相关性 (r = -0.47,p = 0.01).
- 在RMSSD和左心室喷射率 (LVEF) (r = -0.39,p = 0.03) 之间也发现了显著的负相关性.
- 在其他HRV测量和心声回声指数之间没有发现显著的关联.
结论:
- 心率变化参数,特别是高频功率和RMSSD,与健康个体的左心室缩功能有关.
- 这些发现表明,HRV可以作为评估心脏功能的非侵入性标记,特别是左心室缩性表现.
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