What are possible complications of atrioventricular reentrant tachycardia (AVRT) 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

Another concerning feature of AVRT in patients with WPW is that it can disorganize into AF, which can have disastrous consequences in patients with accessory AV pathways capable of antegrade conduction. Atrial impulses can reach an AP at a rate of 300-400 times per minute and may result in hemodynamic instability due to rapid rates of ventricular response, far in excess of that allowed by the AV node-His-Purkinje axis. [26]


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