Wolff-Parkinson-White syndrome overview
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Sara Zand, M.D.[2] Cafer Zorkun, M.D., Ph.D. [3]
Overview
Wolff-Parkinson-White (WPW) syndrome is the most common cause of ventricular pre-excitation and the second common cause of supraventricular tachycardia. There is a muscle fiber that bridges the atrioventricular groove providing electrical continuity between the atrium and ventricle in parallel to the atrioventricular node-His-Purkinje axis. The atrial impulse activates the entire or part of the ventricle or the ventricular impulse activates the entire atrium or part of it, earlier than normally be expected. Patients with WPW syndrome may present with abrupt palpitation, presyncope, syncope, or sudden cardiac death(SCD). In some patients, SCD is the first presentation of WPW syndrome, especially in the setting of atrial fibrillation with a rapid ventricular response.