Which ECG finding suggests AF through an AP 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...
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Answer

AF through an AP appears as a bizarre, wide-complex, irregular tachycardia on ECG, with rates often in the 250 bpm range or higher. The combination of a rapid rate, a widened QRS complex, and unusual or changing QRS complex morphologies in a young patient strongly suggests the diagnosis. [27]


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