Role of Mahaim fibers in cardiac arrhythmias in man.

Journal Article (Journal Article)

Twelve patients with evidence of Mahaim fibers are reported, six with nodoventricular (NV) fibers and six with fasciculoventricular (FV) fibers. All patients with NV fibers had left bundle branch block morphology, and a sustained reentrant tachycardia with this morphology was proved in each case. In three of the six, ventriculoatrial dissociation occurred during tachycardia. We postulate that the mechanism of this tachycardia is a macroreentry circuit using the NV fiber for the antegrade limb and the His-Purkinje system with a portion of the atrioventricular node for the retrograde limb. ECGs of patients with FV fibers were varied, suggesting a functional relation to the right or left side of the septum. No direct relationship of FV fibers to observed arrhythmias could be found.

Full Text

Duke Authors

Cited Authors

  • Gallagher, JJ; Smith, WM; Kasell, JH; Benson, DW; Sterba, R; Grant, AO

Published Date

  • July 1981

Published In

Volume / Issue

  • 64 / 1

Start / End Page

  • 176 - 189

PubMed ID

  • 7237717

International Standard Serial Number (ISSN)

  • 0009-7322

Digital Object Identifier (DOI)

  • 10.1161/01.cir.64.1.176


  • eng

Conference Location

  • United States