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患者男性,58岁,临床诊断:扩张型心肌病。附图为V_1导联连续记录,P波形态有2种:(1)窦性P波呈双向先正后负,顺序出现。P-R0.16s,P-P0.70—0.79s。(2)P波呈直立,小而尖且提前发生(上行P_(4、9),中行P_3、下行P_6)。除中行P_3未下传(P-P’0.44s)外,余均下传心室(P-P’0.50s)。P’-R0.18s,提示:房性早搏。从中行P_3至下行P_3均与P’形态相同,P’-P不等,最短P’-P’0.32—0.36s,最长P’-P’为1.96s(中行P_(9-10)),为短P’-P6倍。提示:房性心动过速伴传出阻滞。
Male patient, 58 years old, clinical diagnosis: dilated cardiomyopathy. The figure for the V_1 lead continuous recording, P wave morphology of two kinds: (1) sinus P wave was positive and negative in both directions, the order of appearance. P-R 0.16s, P-P0.70-0.79s. (2) P wave was upright, small and pointed, and occurred earlier (up P_ (4,9), Bank of P_3, down P_6). In addition to the Bank of China P_3 did not pass (P-P’0.44s), the remaining were down ventricle (P-P’0.50s). P’-R0.18s, tips: atrial premature beats. From the Bank of P_3 to the downstream P_3 are the same with the P ’form, P’-P ranging from the shortest P’-P’0.32-0.36s, the longest P’-P’ is 1.96s (Bank of China P_ (9-10)) , For short P’-P6 times. Tip: Atrial tachycardia with the block.