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Vol 18, No 2 (2023)
Case report
Published online: 2023-03-20

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Latent complete atrioventricular block in a patient with Wolff–Parkinson–White syndrome and fast paroxysmal atrial fibrillation

Dariusz Michałkiewicz1, Sebastian Przychodzeń1, Małgorzata Oleszczak-Kostyra1, Andrzej Osiecki1, Wacław Kochman1
Folia Cardiologica 2023;18(2):91-94.


The Wolf–Parkinson–White (WPW) syndrome is very rarely complicated with a complete atrioventricular block (AVB). In this case, the ventricle is activated entirely through the accessory pathway and the QRS complex is wide and exhibits maximum pre-excitation features. This case report describes a history of a 68 years old male with symptomatic WPW syndrome, episodes of rapid atrial fibrillation and complete atrioventricular block.

Complete heart block in WPW syndrome should be suspected in the presence of a very wide, torn QRS, PJ interval > 0.27 s and paroxysmal atrial fibrillation without atrioventricular re-entrant tachycardia episodes.

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