Purpose: To show our first experiments with the treatment of Wolff-Parkinson-White syndrome through endocavitary fulguration of accessory pathway.
Patients and methods: Fourteen endocavitary fulguration sessions applied in 9 patients with the Wolff-Parkinson-White syndrome. Five were men and the average age was 35 years.
Results: We obtained complete interruption of the conduction by the anomalous pathway in 7 cases: 4 of them needed only one session and the remaining 3, two sessions. Three fulguration sessions were carried out with the remaining patient (actually the first to be submitted to the treatment), and the procedure in that case proved to be unable to interrupt the conduction by the anomalous pathway. This patient was submitted to surgical ablation. In all cases it was not observed any cardiologic complications due to the application of this technique.
Conclusion: The endocavitary fulguration of the accessory pathway is a safe and efficient method and must be considered as a first option when the ablation of the anomalous pathways is indicated.