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[Wolff-Parkinson-White syndrome caused by association of atrio-hisian fibers and Mahaim's fibers. Comparison between the electrophysiology and histology].

Authors
Type
Published Article
Journal
Archives des maladies du coeur et des vaisseaux
Publication Date
Volume
69
Issue
12
Pages
1275–1283
Identifiers
PMID: 827264
Source
Medline

Abstract

A child of six who had had several losses of consciousness died suddenly during a spell of tachycardia. The EKG showed at times a type B Wolff-Parkinson-White syndrome, at times a Lown-Ganong-Levine syndrome. Intracavitary electrophysiological explorations had been carried out. The interest of this case lies in the comparison between these electrophysiological explorations and the histological examination of the normal and accessory conduction pathways. The short PR interval, which did not lengthen under the effect of premature atrial stimulation, was accounted for by the presence of atrio-His bundle tracts. The intermittent delta wave was due to Hissio-ventricular Mahaim fibres. These two accessory conduction pathways are considered as abnormal.

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