What does preexcitation syndrome in the history of a patient with atrial flutter (AFL) suggest?

Updated: Nov 18, 2019
  • Author: Lawrence Rosenthal, MD, PhD, FACC, FHRS; Chief Editor: Jeffrey N Rottman, MD  more...
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Atrial flutter rhythm itself is unstable and usually reverts either to atrial fibrillation or to sinus rhythm. It would be unusual but certainly not impossible for a patient to remain in stable chronic atrial flutter. A history of preexcitation syndrome (Wolff-Parkinson-White) indicates a need for caution; these patients are at risk for 1:1 conduction of the flutter waves, which can cause ventricular fibrillation.

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