What are the indications for electrophysiologic study (EPS) in the diagnosis 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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Answer

EPS can be used in patients with WPW syndrome to determine the following:

  • The mechanism of the clinical tachycardia
  • The electrophysiologic properties (eg, conduction capability, refractory periods) of the AP and the normal AV nodal and His Purkinje conduction system
  • The number and locations of APs (which are necessary for catheter ablation)
  • The response to pharmacologic or ablation therapy

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