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Medicinski pregled
2006, vol. 59, iss. 9-10, pp. 468-471
article language: Serbian
document type: Professional Paper
published on: 02/06/2007
doi: 10.2298/MPNS0610468V
Learning curve in performing radiofrequency ablation of accessory pathways in patients with Wolf-Parkinson-White syndrome
University of Belgrade, Faculty of Medicine, Institute of Cardiovascular Diseases 'Dedinje'


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.


Wolff-Parkinson-White syndrome + therapy; electrophysiology


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