How is paroxysmal supraventricular tachycardia (PSVT) differentiated from ORT in Wolff-Parkinson-White (WPW) syndrome dysrhythmia?

Updated: Jan 08, 2017
  • Author: Christopher R Ellis, MD, FACC, FHRS; Chief Editor: Mikhael F El-Chami, MD  more...
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Differential diagnosis of this type of WPW dysrhythmia includes paroxysmal supraventricular tachycardia (PSVT). Differentiating between the 2 in an acutely symptomatic patient with a regular-rhythm, narrow-complex tachycardia is difficult. Cardiac dysrhythmias with rates higher than 220 bpm in adults suggest that the dysrhythmia is bypassing the AV node and may reflect an AP or ventricular tachycardia (VT).

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