Medicinski pregled 2006 Volume 59, Issue 9-10, Pages: 468-471
doi:10.2298/MPNS0610468V
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Learning curve in performing radiofrequency ablation of accessory pathways in patients with Wolf-Parkinson-White syndrome

Vukajlović Dejan, Nešković Aleksandar N.

Introduction. This study examines the effect of operator experience on radiofrequency ablation (RFA) of accessory pathways success rate in patients with Wolff-Parkinson-White (WPW) syndrome. Material and methods. The first 100 consecutive patients with WPW syndrome treated by radiofrequency ablation at our Clinic, were divided into group A (first 50 patients) and group B (the following 50 patients). Various parameters were compared between these 2 groups. Results. The success rate in group A was 69% and in group B 92%, p<0,01. There were 6 patients with recurrent WPW syndrome, after 3 months of follow-up, 5 were from group A and 1 from group B, p<0,05. Significantly more applications of radiofrequency energy were delivered in group A (10,0±4,8 in group A and 6,2 ±3,1 in group B, p<0,05). Two patients from group A presented with complications: one had intermittent complete AV-block, and the other pericardial effusion. Conclusion. This study shows a clear learning curve in performing RFA of accessory pathways in patients with WPW syndrome. .

Keywords: Wolff-Parkinson-White syndrome + therapy, electrophysiology

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