阵发性室上性心动过速患儿的心率变异性分析  

Analysis of heart rate variability in pediatric patients with paroxysmal supraventricular tachycardia

作　　者：彭静[1] 邓淑珍[1] 王瑞耕[1] 刘玲[1] 孙东明[1] 夏琨[1] 付佳[1] 

机构地区：[1]武汉市妇女儿童医疗保健中心心血管内科,湖北武汉430016

出　　处：《临床儿科杂志》2013年第3期236-238,共3页Journal of Clinical Pediatrics

摘　　要：目的分析阵发性室上性心动过速(PSVT)患儿心率变异性(HRV),探讨自主神经系统活动在PSVT发生中的作用。方法选择25例PSVT患儿,其中16例为房室折返性心动过速(AVRT)患儿,30例健康儿童,分析及比较24 h HRV长程时域指标。结果与健康儿童相比,PSVT患儿RR间期总体标准差(SDNN)、相邻RR间期差值的均方根(RMSSD)降低,差异均有统计学意义(P均<0.05);而RR间期平均值的标准差(SDANN)、RR间期标准差的平均值(SDNNindex)差异均无统计学意义(P均>0.05)。16例AVRT患儿中,10例频繁发作患儿的SDNN、RMSSD、SDANN、SDNNindex均低于6例非频繁发作患儿,差异均有统计学意义(P均<0.05)。结论 PSVT患儿存在自主神经系统失衡,以迷走神经功能降低为主;频繁发作AVRT患儿心脏交感神经活动亦存在明显增强。Objective To explore the effects of autonerve activity in paroxysmal supraventricular tachycardia（PSVT） through the analysis of heart rate variability（HRV）.Methods Twenty-five pediatric patients with PSVT,including 16 patients with atrioventricular anti-fold tachycardia（AVRT） and 30 healthy children were recuited.The 24h HRV indicators were analyzed and compared.Results Compared with the healthy children,the SDNN,RMSSD were lower in petients with PSVT（P0.05）,and no differences were seen in SDANN and SDNNIndex（P0.05）.Among the patients with AVRT,the SDNN,RMSSD,SDANN and SDNNindex were lower in 10 cases with frequent episodes than those in six cases with non-frequent episodes（P0.05）.Conclusions The pediatric patients with PSVT have imbalance in autonerve nervous activity mainly with manifestation of inhibition of vagus nerve function.The patients with frequent episodes of AVRT have more obviously increased sympathetic nervous tension.

关 键 词：心率变异性 阵发性室上性心动过速 自主神经系统 儿童 

分 类 号：R725.4[医药卫生—儿科]