动态心电图与常规心电图在心律失常患儿诊断中的应用价值

Application value of dynamic electrocardiogram and conventional electrocardiogram in diagnosis of children with arrhythmia

目的探究动态心电图和常规心电图在心律失常患儿诊断中的应用价值。方法选取2016年1月~2017年12月我院收治的50例心律失常患儿作为研究对象,分别为其实施动态心电图检查以及常规心电图检查,对动态心电图和常规心电图检查结果、室性心律失常和非室性心律失常患儿的心率变异性的关系进行观察分析。结果心律失常患儿接受动态心电图检查,其传导阻滞、房性期前收缩、室性期前收缩、室性心动过速、室上性心动过速的检出率均明显高于常规心电图检查的检出率,差异有统计学意义(P<0.05);室性心律失常患儿,其心率变异性中的临近正常RR间期差值>50 ms心搏数占其正常窦性心搏间期的相关比例(PNN50)水平明显高于非室性心律失常患儿,其中的相邻RR间期差值均方根(r MMSD)、24 h内5 min阶段RR间期标准差均值(SDNNindex)、全部窦性心搏RR间期的标准差(SDNN)水平均明显低于非室性心律失常患儿,差异有统计学意义(P<0.05)。结论心律失常患儿在疾病诊断中应用动态心电图和常规心电图检查,均具有一定的价值,其中动态心电图的应用可取得更高的价值。

Objective To explore the application value of dynamic and conventional electrocardiogram（ECG） in the diagnosis of children with arrhythmia.Methods A total of 50 children with arrhythmia treated in our hospital from January 2016 to December 2017 were selected as the subjects.They were all performed with dynamic and conventional ECG respectively.The test results of dynamic and conventional ECG and heart rate variability in patients with ventricular arrhythmia and non-ventricular arrhythmia was observed and analyzed.Results Children with arrhythmia undergone dynamic ECG,the detection rates of conduction block,atrial premature contraction,ventricular premature contraction,ventricular tachycardia,and supraventricular tachycardia were significantly higher than those of conventional ECGs,the difference was statistically significant（P〈0.05）.In children with ventricular arrhythmia,the PNN50 in heart rate variability（the ratio of heart beat closing to normal RR interval difference over 50 ms to that in the normal sinus interval） was much higher than those in children with non-ventricular arrhythmia,among which root mean square difference of adjacent RR interval（r MMSD）,mean standard deviation of RR interval during 5 min within 24 h（SDNNindex）,and standard deviation of RR interval in all sinus beats（SDNN） were all lower than those children with non-ventricular arrhythmia,the differences were statistically significant（P〈0.05）.Conclusion Dynamic and conventional ECG both obtain certain values in the diagnosis of arrhythmia in children,but higher value is reflected in the former.