Experimental ventricular preexcitation--type WPW syndrome

Experimental ventricular preexcitation type WPW was performed in five dogs, through an artificial bypass, an electric conductor, made of copper, with a diameter of 8 mm and 12 cm in length. Whenever the conductor was put in contact with both the atrial and the ventricular wall, a WPW electrocardiogram pattern was obtained. This work has been done to better localize with epicardial mapping the site of preexcitation for surgical purposes.