Arnau Vives M A, Bonet L A, Lalaguna L A, Blasco P M, Dolz L M, Sáez A O, Pérez M P
Cardiology Department, La Fe Hospital, Valencia, Spain.
J Electrocardiol. 1999 Jan;32(1):73-6. doi: 10.1016/s0022-0736(99)90024-9.
An electrocardiogram tracing of a patient in conducted sinus rhythm with left bundle branch block is shown, in which occasional pseudonormalization of intraventricular conduction is seen. This event is attributed to ventricular fusions with end-diastolic extrasystoles of the left His-Purkinje system distal to the block site. This type of extrasystole is discussed. In this case, normalization of ventricular activation allowed for diagnosis of inferior subepicardial ischemia.
图中显示了一名患有左束支传导阻滞且窦性心律传导正常的患者的心电图描记，其中可见偶尔的室内传导假性正常化。该事件归因于与阻滞部位远端的左希氏-浦肯野系统舒张期末期期前收缩的心室融合。讨论了这种类型的期前收缩。在这种情况下，心室激动的正常化有助于诊断下壁心外膜下缺血。
