尽管急性心肌梗死并发完全性心脏传导阻滞，但预激仍得以保留。

Boroomand K, Armstrong P W

Can Med Assoc J. 1978 Jul 22;119(2):139-42.

In a 53-year-old man with ventricular pre-excitation (normal PR interval, QRS interval of 0.12 seconds and delta-waves) acute inferior wall myocardial infarction was complicated by, successively, first-degree atrioventricular block, second-degree atrioventricular block (Wenckebach type) and complete heart block. The QRS pattern of pre-excitation was preserved throughout these events. The classification of ventricular pre-excitation is reviewed and the correlation between the various electrocardiographic patterns (the Wolff-Parkinson-White syndrome and its variants and the Lown-Ganong-Levine syndrome) and the anomalous conduction pathways of Kent, James and Mahaim are discussed. In this case the best possible explanation for preservation of pre-excitation during complete heart block was the existence of accessory fibres of Mahaim.

在一名53岁有室性预激（PR间期正常，QRS间期0.12秒且有δ波）的男性患者中，急性下壁心肌梗死相继并发一度房室传导阻滞、二度房室传导阻滞（文氏型）和完全性心脏传导阻滞。在这些过程中，预激的QRS图形一直存在。回顾了室性预激的分类，并讨论了各种心电图图形（ Wolff-Parkinson-White综合征及其变异型和Lown-Ganong-Levine综合征）与Kent、James和Mahaim异常传导通路之间的相关性。在该病例中，完全性心脏传导阻滞期间预激得以保留的最佳解释是存在Mahaim副纤维。