摘要
目的探讨儿童与成人之间短程心率变异性的差异,评价其临床应用价值。方法对66例9岁儿童和29例24岁成人进行短程心率变异性检查,对两组人群的不同体位与不同年龄之间的RR间期标准差(SDNN)及相邻RR间期差值的均方根(RMSSD)两项心率变异性线性指标和非线性的Lorenz图形态进行对比分析。结果两组间线性指标对比无统计学差异,同组内不同体位之间线性指标对比差异呈显著性。两组之间Lorenz图有形态的差异。结论两组相同体位的心率变异性线性指标无统计学差异,同组不同体位之间的心率变异性线性指标有统计学显著差异。Lorenz图反映了交感神经系统与迷走神经系统的功能状态。
Objective To observe the difference of the heart rate variability （HRV） between the normal children and adults, and evaluate the clinical application. Methods Short - time HRV from 66 normal children and 29 adults were examined. The two HRV indexes standard deviation and correlation coefficients of RR - intervals were compared among the groups of the ages. Results There are no statistically difference in linear index between two groups. Within the same group, the different body position showed obviously different linear index and Lorenz print. Conclusion The observed linear index and Lorenz print demonstrated the different response of the functional state between the vagus nerve and the sympathetic nervous system.
出处
《医学研究杂志》
2009年第4期101-103,共3页
Journal of Medical Research
基金
望京医院科研基金资助项目(2007-05)
关键词
短程
心率变异性
不同年龄
不同体位
Short - time
Heart rate variability
Ages
Body position
