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患者男,45岁,临床诊断室早。1年前,患者因感心慌气短在当地医院查心电图示室早,给以美西律2片,日3次,服用约2个月,自觉症状明显好转,停药3月后,自觉室早又出现,自购美西律5瓶连续服用,近日自觉症状加重,并有1次晕厥。故来院查心电图,初始12导心电图(纸速25mm/s,电压100mm/mv)图中最后2次心搏呈室上性,P—R间期0.15秒,PⅡ、Ⅲ,avF直立,PavR倒置,R—R间期为1.08秒,频率为56次/分,未见明显的ST—T改变,从图中观察QRS波形态可见5种形态,以V_5
Male patient, 45 years old, clinical diagnosis room early. 1 year ago, the patient felt palpitation shortness of breath in the local hospital check ECG early, to the United States Xilv, 2, 3 times a day, taking about 2 months, significantly improved symptoms, withdrawal 3 months later, consciously room early Appear, since the United States bought five consecutive bottles of law, taking symptoms recently increased, and a syncope. Therefore, the hospital check electrocardiogram, the initial 12-lead ECG (paper speed 25mm / s, voltage 100mm / mv) the last 2 beats in the graph was supraventricular, P-R interval 0.15 seconds, P Ⅱ, Ⅲ, avF upright, PavR upside down , R-R interval of 1.08 seconds, a frequency of 56 beats / min, no significant ST-T changes seen from the figure observed in five morphological morphology of QRS wave to V_5