12导动态心电图与12导常规心电图ST-T差别的研究

目的:探讨12导动态心电图与12导常规心电图ST-T的差别,为提出12导动态心电图(AECG)ST-T的诊断标准提供依据。方法:用常规12导心电图(RECG)的连接方式和12导动态心电图的连接方式分别描记心电图,然后比较两种连接方式心电图ST?T的差别。结果:两种导联联接方式,ST段正常或改变基本一致的555例,一致率为92.5%,但AECG的ST改变较RECG显著;T波正常或改变基本一致的561例,一致率为94.8%(T波的一致是指:在QRS波群主波向上的导联,T波方向一致,T波的电压变化均在正常范围内,形态大致相同);Q-Tc间期:两种连接方式均在正常范围内586例,一致率为97.5%。结论:①两种联接方式,虽然ST段的一致率为92.5%,但AECG的ST改变较RECG显著,所以AECG的ST诊断标准应比RECG的ST诊断标准更为严格;②两种联接方式T波的一致率为94.8%差别较ST段小,在分析12导联AECG T波时,可适当考虑这一情况;③两种联接方式Q-Tc间期一致率为97.5%,可考虑使用同一诊断标准。

The Difference of ST-T Between 12-lead Dynamic Electrocardiogram (DCG) and 12-lead Routine Electrocardiogram (RECG)

Objective: To explore the difference of ST-T between 12-lead dynamic electrocardiogram(DCG)and 12-lead routine electrocardiogram(RECG),then to investigate the diagnostic standard of ST-T by DCG.Method:600 patients were detected with DCG and RECG respectively.and the difference of ST-T was analysed.Result: The changes of ST-T in 555 cases detected by DCG were in accordance to those by RECG.The concordance rate of ST-T detection was 92.5%.But ST-T variation by DCG was more significant than that by RECG.561 patients show a normal T-wave or similar changes in T-wave by both DCG and RECG.The concordance rate was 94.8%.The Q-Tc intervals of 586 cases were all in normal range by both DCG and RECG.The concordance rate of Q-Tc interval detection was 97.5%.Conclusion: Firstly,the diagnostic standard of ST by DCG maybe sensitive than that by RECG.Secondly,The concordance rate of T-wave detection was higher than that of ST-T.Lastly,Identical standard can be used for Q-Tc interval diagnosis by DCG and RECG since a high concordance rate of Q-Tc interval was found.