A: Baseline electrocardiogram showing atrial flutter with wide, left bundle branch block morphology QRS complexes interspersed with narrow QRS complexes. Sweep speed 25 mm/s. B: During spontaneous initiation of wide QRS complex tachycardia, His signal “moves” after the beginning of the QRS complex, and distal His signal comes earlier than proximal His signal. Sweep speed 125 mm/s. CS = coronary sinus; His = His bundle; RVa = right ventricular apex.
展开▼
机译：答：基线心电图显示心房颤动，宽束分支块形态QRS复合物穿插着窄QRS复合物。扫速25 mm / s。 B：在宽QRS复杂的心动过速的自发发起期间，他的信号“移动”在QRS复合物的开始后，其信号的远端比他的信号更早提前。扫速125 mm / s。 CS =冠状动脉窦;他=他的捆绑; RVA =右心室顶点。
展开▼
