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Ⅰ和aVF导联联合Ⅱ导联法与传统Ⅰ和Ⅲ导联法判断QRS平均心电轴的比较

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摘要:

目的 比较Ⅰ和aVF导联目测判断QRS平均心电轴与Ⅰ和Ⅲ导联判断电轴的优势。方法 采用整群抽样法抽取兰州大学第二临床医学院2015级临床医学生,分为研究组和对照组,研究组用导联Ⅰ和aVF判断电轴,对照组用导联Ⅰ和Ⅲ判断电轴。判断标准依据心电图机系统化数据为参考结果。结果 应用导联Ⅰ和aVF判断其中3个象限的心电轴快速准确;当电轴在“left”象限时,需要联合Ⅱ导联正负相判断。Ⅰ和Ⅲ导联误判率相对较高。结论 用Ⅰ和aVF导联判断QRS平均心电轴快速准确,可用于临床。

Abstract:

Objective To compare the advantages between lead Ⅰ-lead aVF method and lead Ⅰ-lead Ⅲ method in judging QRS mean axis. Methods The students of clinical medicine of grade 2015 were selected by using cluster sampling method from the Second School of Clinical Medicine of Lanzhou University, and then divided into study group and control group. QRS mean axis was judged by using lead I-lead aVF method in study group and by using lead I-lead Ⅲmethod in control group. The results of ECG machine systematic data were taken as judging criterion. Results The lead I-lead aVF method was quick and accurate in judging 3 quadrants of QRS mean axis. When QRS mean axis was at left quadrant, lead Ⅱ was combined with lead I-lead aVF for judging positive and negative quadrants. The false rate of lead I-lead Ⅲ method was higher. Conclusion The lead I-lead aVF method is quick and accurate in judging QRS mean axis, which can be used in clinical practice.

基金项目:

兰州大学教学资助项目(2017234)

参考文献:

  • 2008

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