Algorithm (Milstein) to localize accessory pathway in preexcitation syndrome

Mapping algorithm for localization of accessory pathway in the preexcitation syndrome using the morphology of the delta wave on the electrocardiogram.

LBBB: left bundle branch block; RAS: right anteroseptal; LL: left lateral; PS: posteroseptal; RL: right lateral.
* + QRS ≥90 msec in L1 and rS in V1 and V2.

Graphic 70648 Version 5.0