论文部分内容阅读
房性早搏在心电图上表现为提前出现与窦性P 波形态不同的异位P′波,其P′—R 间期≥0.12秒,QRS 波群形态多正常;其后代偿间期多不完全,诊断容易。但有时临床遇到提前出现的直立性P 波(P_(?)直立,P_(aVR)倒置),其P′—R 间期<0.12秒,不符合一般房早的特点,给诊断带来困难,现结合所遇1例加以粗浅讨论。患者男性,21岁,临床诊断:急性心肌炎。心电图表现见封3图1。图1为2月17日描记常规心电图示:窦性心律,P—R 间期=0.14秒。在各导联中均可见提前出现的与窦性P 波形态不同的异位P′波,
Atrial premature beats in the ECG showed early and sinus P wave morphology of ectopic P ’wave, the P’-R interval ≥ 0.12 seconds, QRS wave group more than normal; the subsequent compensation period is not Completely easy to diagnose. But sometimes clinical encounter early standing P wave (P_ (?) Upright, P_ (aVR) inversion), the P’-R interval of <0.12 seconds, does not meet the characteristics of the general room early to bring difficulties to the diagnosis , Now combined with the experience of 1 case to be discussed superficially. Male patient, 21 years old, clinical diagnosis: acute myocarditis. ECG performance see the seal 3 Figure 1. Figure 1 is February 17 tracing conventional ECG: sinus rhythm, P-R interval = 0.14 seconds. In each lead can be seen in advance with the sinus P wave morphology of ectopic P ’wave,