患者,男,69岁,因阴茎肿物于1992年12月7日入院。既往无高血压和心前区疼痛史。心电图检查如下。 12月17日首次记录标Ⅱ导联,P波直立,均位于QRS波之后,p-p间距0.72s;QRS波呈室上型,匀齐发生,R-R间距等于0.72s,频率83次/分,P-R间期固定为0.63s。据此,心电图可有两种不同的诊断:(1)非阵发性交界性心动过速,等律性房室分离;或(2)窦性心律伴一度房室传导阻滞(AVB)。 The patient, male, 69 years old, was admitted to the hospital on December 7, 1992 for having a penile tumor. No previous history of hypertension and precordial pain. ECG check as follows. December 17 recorded the first lead Ⅱ, P wave upright, are located in the QRS wave, pp spacing 0.72s; QRS wave was supratentorial, homogeneous occurred, RR interval is equal to 0.72s, the frequency of 83 beats / min, PR The interval is fixed at 0.63s. Accordingly, the ECG can be diagnosed in two different ways: (1) non-paroxysmal borderline tachycardia, atrioventricular separation; or (2) sinus rhythm with atrioventricular block (AVB).