WPW syndrome is caused by
Bundle Branch Block
Right sided accessory pathway
Ectopic pacemaker in atrium
Left budle Branch block
Ans. is 'b' i.e., Right sided accessory pathway Anatomy (Location ofAccessory pathway) in W.R W syndrome Electrophysiological studies and mapping have shown that accessory. Atrioventricular pathways may be located anywhere along the A-V rign or groove in the septum. The most frequent locations are : - Left lateral (50%), posteroseptal (30%) right anteroseptal (10%). Right lateral (10%). Preexcitation resulting from left sided accessory is called type A preexcitation. Preexcitation resulting from right sided accessory pathway is called type B preexcitation.