健康儿童心率变异性长程时域指标的特点探讨  

The characteristics of long-term time domain heart rate variability in normal children

作　　者：李筠[1] 周爱卿[1] 朱敏[1] 黄美蓉[1] 杨健萍[1] 王红平[1] 张海燕[1] 

机构地区：[1]上海第二医科大学附属新华医院上海儿童医学中心,200127

出　　处：《中国介入心脏病学杂志》2001年第2期59-60,共2页Chinese Journal of Interventional Cardiology

摘　　要：目的 探讨健康儿童心率变异性（ＨＲＶ）长程时域指标的特点。方法 对２６６例健康儿童ＨＲＶ２４小时长程时域指标（ＳＣＬ、ＳＤＮＮ、ＳＤＮＮｉｎｄｅｘ、ＳＤＡＮＮ、ＲＭＳＳＤ、三角指数）进行不同年龄、性别及与成人正常参考值间进行分析比较。结果 ①儿童不同性别组间ＨＲＶ差异无显著性；②儿童不同年龄组间虽心动周期（或心率）存在差异，但ＨＲＶ差异无显著性；③儿童组与成人正常参考值中ＳＤＮＮ、ＳＤＡＮＮ、ＲＭＳＳＤ存在有差异显著性，ＲＭＳＳＤ在儿童中明显高于成人组。结论 ＳＤＡＮＮ、ＳＤＮＮｉｎｄｅｘ是反映交感神经功能的敏感指标，而ＲＭＳＳＤ更能反映迷走神经功能，可见儿童的自主神经功能较成人活跃，而随着年龄的增长即自主神经功能的减退，尤其是迷走神经的紧张性抑制功能明显减退。Objective To study the characteristics of long-term time domain heart rate variability(HRV) in normal children, Methods Long-term HRV(SCL、SDNN、SDNNindex、SDANN、RMSSD、Triangular index) were measured and compared with sex and age in 266 normal children and also compared with normal adult values Results ①HRV Has no significant difference in children with sex;②Though heart rate is different with the age in children, HRV has no difference; ③ SDNN、SDANN、RMSSD are significantly different between children and adults, especially RMSSD.Conclusion SDANN、SDNNindex reflect the function of sympathetic nervous while RMSSD reflects parasympathetic nervous function. Our study shows that children have more active autonomic nervous system than adults. As the age autonomic nervous are decreased, especially parasympathetic nervous funtion.

关 键 词：心率变异性 自主神经系统 儿童 

分 类 号：R331.3[医药卫生—人体生理学]