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V_1导联窦 P 频率62—65次/min,P_(4、7、14)提前出现,配对间期基本相等,代偿间歇不完全,系房性早搏。其中 P_7下传心室,P_(4、14)因 P-R 间期太短而未能下传。QRS 形态有4—5种:①V_1呈 QS 型、V_5呈 R 型,R 波平顶错折,时限0.14s,系窦 P 下传,呈完全性左束支阻滞,其 P-R间期0.15—0.18s,当 P-R0.18s 时,是否存在
V_1 lead sinus P frequency of 62-65 beats / min, P_ (4,7,14) appear in advance, the pairing interval is basically equal, compensatory intermittent incomplete, Department of atrial premature beats. Which P_7 downlink ventricle, P_ (4,14) due to the P-R interval is too short and failed to download. QRS morphology of 4-5 kinds: ① V_1 was QS type, V_5 was R type, R wave flat top wrong, time limit 0.14s, Department of sinus P down, was complete left bundle branch block, the PR interval 0.15-0.18 s, when P-R0.18s, it exists