Rapid localization of accessory pathways in WPW syndrome using unipolar potential mapping

Wolff-Parkinson-White (WPW) syndrome is discussed as a condition in which anomalous myocardial tissues electrically connect atrial and ventricular muscle. Patients with this disorder are subject to a variety of disabling and potentially life threatening arrhythmias. Spatial mapping of the atrial and ventricular electrical activation sequence has been used to localize these pathways at the time of surgery, but the procedures are time consuming and often yield uncertainties in data interpretation. A new electrode arrangement and display procedure provides a faster and cleaner presentation of the information used to direct operative interventions