碎裂QRS波与Tp-Te间期关系的研究

The relationship between fragmentation of QRS wave and T peak-T end interval

目的探讨碎裂QRS波群(fQRS)与T波峰-末间期的关系及临床意义。方法选择421例无症状健康体检者,采集静息状态的常规心电图,并同步记录12导联心电图的Ⅱ、V2导联的T波峰-末间期进行测量,分析fQRS与T波峰-末间期的关系。结果 67例(16%)检出fQRS,其中84.5%(56/67)的fQRS分布于肢体导联,另15.5%(11/67)分布于胸前导联。两组间Ⅱ导联Tpe/RR差异具有统计学意义(p<0.05),而QT/RR无统计学意义(p>0.05)。结论健康人心电图fQRS主要分布在肢体导联,有fQRS者较无fQRS者的T波峰-末间期增大。

Objective To investigate the fragmentation of QRS wave（fQRS）and T peak-T end interval and its clinical significance.Methods 421 cases of asymptomatic healthy subjects,collecting the resting electrocardiogram and recorded during the synchronous twelve lead ECG Ⅱ lead,lead V2 T peak-T end interval measurement,analysis of fragmentation ofQRS and Tpeak-Tend intervalrelations.Results A total of 67 cases（16%）were fQRS,of which about 84.5%（56/67）of fQRS distribution in the limb leads,the other15.5%（11/67）distributed in the precordial leads.Among the two groups of lead,lead Ⅱ Tpe/RR the difference was statistically significant（p0.05）,and QT/RR（p0.05）no statistically significance.Conclusions fQRS is mainly distributed in limb leads with increase of T peak-T end interval in asymptomatic healthy subjects.