[Ablation of the accessory bundle of Kent using radiofrequency current in a 17-year-old boy with type A Wolff-Parkinson-White syndrome].

The authors describe the in Czechoslovakia so far not used therapeutic catheterization ablation method of the accessory atrioventricular pathway in patients with tachycardia with the Wolff-Parkinson-White syndrome. They performed successful ablation of the accessory bundle of Kent located by electrophysiological examination behind the left atrium and left ventricle in a 17-year-old boy with WPW Syndrome type A. They severed the accessory pathway by radiofrequency current using a catheter inserted from a retrograde approach into the left ventricle beneath the mitral valve. After ablation the boy suffers no longer from tachycardia, the ECG tracing in devoid of preventricular preexcitation, although he has no medicamentous treatment.