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附图为V_1导联连续记录。P波直立,P-P0.58—0.64秒,频率93—103次/分。心室波群基本分三型:第一种QRS时限0.08秒,呈不完全性右束支阻滞图形,P-R间期固定0.16秒,为下传的窦性搏动;第二种QRS波群明显畸形,增宽至0.14秒,伴有继发ST-T改变,配对间期0.46—0.56秒,其激动的逆向传导与P波的前向传导在房室交界处相干扰,引起完全性代偿间歇,这是室性早搏(X),其形态为左束支传导阻滞型,表示起源于右室;第三种心室波群形态居于二者之间,其前可见一P波,但P-R间期短而不一致,这是各种不同程度的室性融合波(XF),配对间期为0.56—0.60秒。异位搏动之间交替包含1个及2个窦性搏动,室性早搏的配对间期不固定,提示为室性并行节奏点。但异位搏动之间的长短间期无倍数关系,这种长与短间期的交替,
The figure for the V_1 lead continuous record. P wave upright, P-P0.58-0.64 seconds, the frequency of 93-103 beats / min. Ventricular wave group basically divided into three types: the first QRS time limit of 0.08 seconds, showed incomplete right bundle branch block pattern, PR interval fixed 0.16 seconds, for the next sinus beats; the second QRS complex obvious deformity , Widened to 0.14 seconds, accompanied by secondary ST-T changes, pairing interval of 0.46-0.56 seconds, the inverse of its conduction and conduction of P wave front interferential interference in the atrioventricular junction, causing a complete compensatory intermittent , Which is premature ventricular contractions (X), the shape of the left bundle branch block type, said originated in the right ventricle; the third type of ventricular wave group living in between the two, in front of a P wave seen, but the PR room Short and inconsistent, this is a variety of different degrees of ventricular fusion wave (XF), matching between 0.56-0.60 seconds. Ectopic beats alternating between 1 and 2 sinus beats, ventricular premature beats between the matching interval is not fixed, suggesting that ventricular rhythm point. But the ectopic beats between the length of the non-multiples of the relationship between the long and short intervals of alternating,