Holter监测广泛应用于发现心律失常,确定心律失常的性质以及评价抗心律失常药物的疗效。由于现用监测导联的限制,使它对心律失常的分析存在一定局限性。Dewer等人采用改良的Frank导联系统,在EAI点放上电极,S电极置于胸骨柄上,构成类似正校心电图的xyz导联的ESASAI三个导联,并由此再衍生出拟12导联心电图,采用这 Holter monitoring is widely used to detect cardiac arrhythmias, determine the nature of arrhythmias, and evaluate the efficacy of antiarrhythmic drugs. Because of the limitations of current monitoring leads, it has limitations in the analysis of arrhythmias. Dewer et al. Used a modified Frank lead system with an electrode placed at the EAI point and a S electrode placed on the sternum stem to form three ESASAI leads similar to the xyz lead of the positive school electrocardiogram and derive therefrom the pseudo-12 Lead ECG, using this