Persistent ventricular preexcitation despite right bundle branch block

Academic Article


  • © 2018 Indian Heart Rhythm Society A 44-year-old man with a history of ventricular preexcitation and supraventricular tachycardia was evaluated. The baseline electrocardiogram exhibited ventricular preexcitation with a normal PR interval and a minimally negative delta wave in lead V1 and positive delta waves in the inferior leads. The administration of adenosine resulted in a progressive prolongation of the PR interval with a fixed preexcitation degree, suggesting the presence of antegrade conduction over the fasciculo-ventricular pathway. When complete right bundle branch block occurred, the degree of preexcitation never changed. These findings suggested that the fasciculo-ventricular pathway was likely to be connected to the left-sided His-Purkinje system.
  • Authors

    Digital Object Identifier (doi)

    Author List

  • Itoh T; Yamada T
  • Start Page

  • 146
  • End Page

  • 147
  • Volume

  • 18
  • Issue

  • 4