Copyright © 1988 by the European Society of Cardiology.
© 1988 The European Society of Cardiology
Modification of a left-sided accessory atrioventricular pathway by radiofrequency current using a bipolar epicardial-endocardial electrode configuration

Department of Cardiology, University Hospital Eppendorf Hamburg, F.R.G.
*University of Oklahoma Oklahoma City, OK
University of Texas Houston, TX, U.S.A.
Received 2 September 1987; revised 1 February 1988; .
Address for reprints: Karl-Heinz Kuck, MD, Department of Cardiology, University Hospital Eppendorf, Martinistrasse 52, D-2000 Hamburg 20, F.R.G.
Abstract
Transcatheter ablation of a left posterolateral free wall accessory atrioventricular pathway using radiofrequency current and a bipolar epicardialendocardial electrode configuration was attempted in a 19-year-old woman. The patient had suffered from recurrent syncope due to atrial fibrillation with rapid conduction to the ventricles. Following applications of radiofrequency current between one electrode in the coronary sinus and another in the left ventricle placed high against the mitral annulus, the anterograde effective refractory period was increased from less than 205 ms to a lasting value of 460 ms. Radiofrequency application could be performed without general anaesthesia and caused no side-effects.
Key Words: WolffParkinsonWhite syndrome transcatheter ablation.