BODY-SURFACE POTENTIAL MAPPING OF A PATIENT WITH WOLFF-PARKINSON-WHITE SYNDROME WITH 2 ACCESSORY PATHWAYS AND 2 ATRIAL PACEMAKER COMPLEXES

As part of an ongoing research protocol, a patient with Wolff-Parkinso n-White syndrome underwent body surface potential mapping and electrop hysiologic studies before radiofrequency ablation therapy. Careful ana lysis of the body surface potential mapping data made it possible to d istinguish four different map sequences representing four different ca rdiac complexes. Analysis of these maps is consistent with two accesso ry pathways, with the additional pathology of two distinct atrial pace maker sites. A right anterosuperior pathway was found to conduct conti nuously. The second pathway is consistent with a right inferior pathwa y conducting intermittently. The analysis demonstrates the type of inf ormation that can be extracted from body surface potential maps, even in the presence of complex pathologies.