摘要
目的探讨病毒性心肌炎患儿动态心电图心率变异性(HRV)与心率减速力(DC)的变化及意义。方法选取病毒性心肌炎患儿50例作为试验组,另选取同期到本院行健康体检的健康儿童50例作为对照组。两组儿童均行24 h动态心电图检测,记录两组DC与HRV各项指标水平,分析DC与HRV各项指标的相关性。结果与对照组相比,试验组DC、低频功率、高频功率、RR间期均值标准差(SDANN)、RR间期总体标准差(SDNN)、相邻RR间期差值均方根(RMSSD)均显著降低(P均<0.05);经双变量Pearson相关性分析检验证实,DC与低频功率、高频功率、SDANN、SDNN、RMSSD均呈正相关(r值分别为0.632、0.703、0.781、0.608和0.772,P<0.05)。结论病毒性心肌炎患儿多伴迷走神经功能受损,且HRV各项指标与DC呈正相关,提示将DC用于小儿病毒性心肌炎病情严重程度判断及治疗指导有一定临床意义。
Objective To investigate the changes and significance of heart rate variability(HRV)and deceleration capacity of rate(DC)in children with viral myocarditis.Methods Fifty children with viral myocarditis were selected as the experimental group,and 50 healthy children who had undergone health checkups in our hospital during the same period were selected as the control group.The 24 h ambulatory electrocardiogram test was performed in the two groups of children.The levels of DC and HRV indicators were recorded and the correlation between DC and HRV indicators was analyzed.Results DC,lowfrequency power,highfrequency power,standard deviation of RR interval mean(SDANN),overall standard deviation of RR interval(SDNN),and root mean square difference of adjacent RR intervals(RMSSD)of the test group are lower than that of the control group,and the difference is statistically significant(P<0.05).The bivariate Pearson correlation analysis test confirmed that DC was positively correlated with low frequency power,high frequency power,SDANN,SDNN,and RMSD(r values were 0.632,0.703,0.781,0.608 and 0.772,P<0.05).Conclusions Children with viral myocarditis are often associated with impaired vagus nerve function,and HRV indicators are positively correlated with DC,suggesting that the use of DC for judging the severity of viral myocarditis in children and its treatment guidance have certain clinical significance.
作者
陈惠红
刘东亮
潘月
Chen Hui-hong;Liu Dong-liang;Pan Yue(ECG Room,Luohe Henan 462000,China,Luohe Central Hospital,Luohe Henan 462000;Department of Cardiology,Luohe Central Hospital,Luohe Henan 462000;ECG Room,the Sixth People's Hospital of Luohe,Luohe Henan 462000,China)
出处
《实用心电学杂志》
2020年第1期16-18,共3页
Journal of Practical Electrocardiology
基金
国家自然科学基金资助项目(81803318)
关键词
病毒性心肌炎
心率变异性
心率减速力
动态心电图
viral myocarditis
deceleration capacity of rate
heart rate variability
Holter monitoring
