The use of body surface maps in patients with WPW syndrome as a means to predict the localization of bypass tract

23 adult patients with Wolff-Parkinson-White (WPW) syndrome (mean age 46.5, 11 male, 12 female) with a single accessory pathway confirmed by electrophysiological study.

Body surface potential mapping (87 leads) using the position of the potential minimum when the potential reaches -0.15 mV during the delta wave to predict accessory pathway localization.

Electrophysiological study using catheter electrodes (reference standard).

Localization of the accessory pathway (classified into 7 regions of the atrioventricular ring).surrogate