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. 1978 Jul 22;119(2):139–142.

Preservation of pre-excitation despite acute myocardial infarction complicated by complete heart block.

K Boroomand, P W Armstrong
PMCID: PMC1818059  PMID: 679113

Abstract

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.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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