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. Wolff-Parkinson-White syndrome is named after the cardiologists Louis Wolff, John Parkinson, and Paul Dudley White who gave a definitive description of the conduction disorder of the heart in 1930. The term Wolff-Parkinson-White syndrome was coined in 1940. Bundle of Kent was first discovered by Albert Frank Stanley Kent, a British physiologist following finding the lateral branch in the atrioventricular groove of the monkey heart. Wolff-Parkinson-White (WPW) syndrome is the occurrence of arrhythmia in the presence of an accessory pathway. WPW can be classified according to the site of origin, location in the mitral or tricuspid annulus, type of conduction (antegrade vs retrograde), and characteristics of the conduction (decremental vs nondecremental). In addition, WPW can be classified based of the type of atrioventricular reciprocating tachycardia (AVRT) it causes, which can be either orthodromic (~95% of the cases) or antidromic.
Historical Perspective
Wolff-Parkinson-White syndrome is named after the cardiologists Louis Wolff, John Parkinson, and Paul Dudley White who gave a definitive description of the conduction disorder of the heart in 1930. The term Wolff-Parkinson-White syndrome was coined in 1940. Bundle of Kent was first discovered by Albert Frank Stanley Kent, a British physiologist following finding the lateral branch in the atrioventricular groove of the monkey heart.
Classification
Wolff-Parkinson-White (WPW) syndrome is the occurrence of arrhythmia in the presence of an accessory pathway. WPW can be classified according to the site of origin, location in the mitral or tricuspid annulus, type of conduction (antegrade vs retrograde), and characteristics of the conduction (decremental vs nondecremental). In addition, WPW can be classified based of the type of atrioventricular reciprocating tachycardia (AVRT) it causes, which can be either orthodromic (~95% of the cases) or antidromic.