Which ECG finding excludes an accessory AV pathway as part of the reentrant circuit in Wolff-Parkinson-White (WPW) syndrome?

Updated: Jan 08, 2017
  • Author: Christopher R Ellis, MD, FACC, FHRS; Chief Editor: Mikhael F El-Chami, MD  more...
  • Print
Answer

Atria and ventricles are required components of the macroreentrant circuit in ORT or AV reentrant tachycardia (AVRT); therefore, continuation of the tachycardia in the presence of AV or VA block excludes an accessory AV pathway as part of the reentrant circuit.


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!