What is the role of the Ebstein anomaly in the etiology of Wolff-Parkinson-White (WPW) syndrome?

Updated: Jan 08, 2017
  • Author: Christopher R Ellis, MD, FACC, FHRS; Chief Editor: Mikhael F El-Chami, MD  more...
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Patients with the Ebstein anomaly may develop WPW syndrome. They frequently have multiple accessory bypass tracts, mostly on the right, in the posterior part of the septum or the posterolateral wall of the right ventricle. The orthodromic reciprocating tachycardia in such patients often exhibits right bundle-branch block (RBBB) and a long ventriculoatrial (VA) interval.

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