Case 25

Bradley P. Knight*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter


A female marathon runner without structural heart disease had a documented regular wide complex tachycardia (Fig. 25.1). At the time of electrophysiology (EP) testing, she had normal sinus and atrioventricular (AV) node function, no ventricular preexcitation, and no inducible ventricular tachycardia (VT). A wide complex tachycardia was induced with an atrial premature extrastimulus during sinus rhythm (Fig. 25.2). The QRS morphology was a right bundle branch block (RBBB) pattern with an inferior axis. There was not His-bundle potential recordable before the QRS during the tachycardia. What is the most likely diagnosis?

Original languageEnglish (US)
Title of host publicationCardiac Electrophysiology
Subtitle of host publicationClinical Case Review
PublisherSpringer London
Number of pages4
ISBN (Print)9781849963893
StatePublished - 2011

ASJC Scopus subject areas

  • General Medicine


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