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目的分析总结P波Ⅱ、Ⅲ、avF形态、方向改变引起心律误诊的原因。方法随机筛选出被自动数字心电图机初步诊断为异位心律的158例静态心电图受检者,分析其P波形态、方向及其是否患病和患病的类型。结果 146例为各种原因引起的P波非特异性改变导致的伪异位心律,只有少数12例是真正的异位心律。结论单纯Ⅱ、Ⅲ、avF导联P波形态、方向改变不能盲从自动心电图机诊断为异位心律。
Objective To analyze and summarize the causes of the misdiagnosis of heart rhythm caused by the changes of P wave Ⅱ, Ⅲ, avF morphology and direction. Methods Fifty-eight patients with static electrocardiogram (ECG) who were diagnosed as ectopic heart rhythm by automatic digital electrocardiography were randomly selected and their P wave morphology and orientation were analyzed. Results 146 cases of pseudo-ectopic heart rhythm caused by non-specific P-wave changes caused by various reasons, only a small number of 12 cases are true ectopic rhythm. Conclusions The changes of P wave shape and orientation in simple leads II, III and avF can not be blindly diagnosed as ectopic rhythm by automatic ECG.