交界性并行心律伴反复搏动散点图特征

ECG scattergram characteristics of the junctional parallel rhythm with repetitive beats

目的探讨交界性并行心律伴反复搏动的心电散点图特征及形成原理,为快速分析相关病例奠定基础。方法选择交界性并行心律伴反复搏动的经典病例,利用逆行技术了解其RR间期特征,在《几何画板》中制作其Lorenz散点图及差值散点图的数学模型,对比模型与真图,提炼交界性并行心律伴反复搏动的心电散点图特征。结果逆行技术显示交界性反复搏动周期(JN’)相对固定,为恒量;并行心律性早搏的联律间期变异性远大于窦性心律周期(NN)的变异性,相对而言,NN周期为恒量,NJ周期为变量,依据RR间期的恒变性质制作的散点图数学模型与真图高度吻合。对照模型与真图,可以总结出交界性并行心律伴反复搏动的心电散点图主要特征有:JN’水平分布于低位;NJN’水平分布,JN’N垂直分布;NNJN’、NJN’N、JN’NN分别分布于Ⅲ象限、Ⅱ象限、x轴正侧,总体上呈三轮状结构。结论交界性并行心律伴反复搏动的心电散点图规律性强,特征明显,与插入性早搏的散点图特征明显不同,心电散点图技术是快速分析相关病例的秘密武器。

Objective To discuss the characteristics and formation principles of the ECG scattergrams of borderline parallel heart rhythms with repetitive beats,and lay the foundation for the rapid analysis of related cases.Methods Select several classic cases of borderline parallel heart rhythm with repetitive beats,use retrograde technology to analyze the characteristics of the RR interval,and make the mathematical models of the Lorenz scatter plot and the difference scatter plot in the"Geometric Sketchpad".Refining the characteristics of the ECG scatter plot of the junctional parallel heart rhythm with repetitive beats.Results The results show that the JN’cycle is relatively fixed;the variability of the inter-rhythm of parallel premature beats is much greater than the variability of the sinus rhythm cycle(NN).Relatively speaking,the NN cycle is constant,the NJ period is a variable,and the mathematical model of the scatter diagram made according to the constant-variable nature of the RR interval is highly consistent with the true diagram.Comparing the model with the real image,it can be concluded that the main features of the ECG scatter diagram with borderline parallel heart rhythm with repeated beating are:JN’horizontally distributed in the low position;NJN’horizontally distributed,JN’N vertically distributed;NNJN’,NJN’N,JN’NN are respectively distributed on theⅢquadrant,Ⅱquadrant,and the positive side of the x-axis,and generally have a three-wheeled structure.Conclusions The ECG scatter diagram of borderline parallel heart rhythm with repetitive beats has strong regularity and obvious characteristics.It is obviously different from the scatter diagram of inserted premature beats.The ECG scatter diagram technology is the secret weapon for rapid analysis of related cases.