[摘要] 目的 了解肺栓塞心电图QRS电交替的临床价值。 方法 分析我院2013年9月～2015年9月经CTA确诊的55例肺栓塞心电图。 结果 有QRS电交替的肺栓塞20例占36.4%。 结论 心电图QRS电交替无特异性，但可作为肺栓塞诊断的重要预警之一。

    [关键词] 肺栓塞；心电图；QRS；电交替

    [中图分类号] R563.5 [文献标识码] B [文章编号] 1673-9701(2016)19-0094-04

    [Abstract] Objective To understand the clinical value of pulmonary embolism electrocardiogram QRS electrical alternation. Methods 55 cases of electrocardiogram(ecg) were analyzed which were proved to be pulmonary embolism by CTA in our hospital from September 2013 to September 2015. Results Pulmonary embolism electrocardiogram QRS alternating electric was accounted for 36.4%. Conclusion Electrocardiogram QRS alternating electric is no specificity ......