A 96-year-old woman presented to the emergency department with a 1-day history of pleuritic chest pain 4 days after a single-chamber transvenous pacemaker had been implanted. A chest radiograph and computed tomographic scan of the chest showed the tip of the right ventricular lead in the left pleural space. What rhythm does the electrocardiogram show?
一名96岁女性因植入单腔经静脉起搏器后4日出现胸膜炎性胸痛1日到急诊科就诊。胸片和胸部计算机断层扫描显示右心室导线尖端位于左胸膜间隙。心电图显示的是什么节律?
A. Atrial fibrillation
B. Complete heart block完全性心脏传导阻滞
C. Second degree heart block
D. Ventricular-paced rhythm心室起搏心律
E. Wandering atrial pacemaker游离型心房起搏器
答案解析：
心电图显示完全性心脏传导阻滞，心房频率为84次/分，交界区逸出，右束支传导阻滞，心率为42次/分，以及无心室夺获的起搏棘波。诊断为起搏器导线脱位伴心脏穿孔。紧急进行了经皮导线翻修，患者在就诊后3日出院回家。
正确答案：B
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