الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 151 |  |  |
| | | from | 151 | | |
Abstract
Understanding of WPW syndrome and its variants has continued to increase recent years .Our study concerned with study of variants and atypical forms of reexcitation and the role of catheter ablation in the management of these patients.
The current study was carried out in the Department of Arrhythmiology, San Raffaele University Hospital during the period from January 2007 to January 2008.
This study included 20 patients who had variants and atypical forms of reexcitation either in site, electrophysiological properties of accessory pathway or e catheter used in ablation.
The present study demonstrates that
• AP associated with long conduction times were significantly more likely to be in a posteroseptal AP location than AP associated with typical conductive properties,
• High success rate of ablation of these accessory pathways by either conventional or with STEREOTAXIS with no recurrence nor complications during or after the procedure
• PJRT in adults is often paroxysmal and the retrograde slowly conducting, decremental AP is frequently in posteroseptal location. And the study confirmed that radiofrequency catheter ablation by irrigated tip catheter inside CS should be considered as the treatment of first choice in adult patients with PJRT for efficacy and safety of the procedures.
• The incidence of mUltiple accessory pathways is not low among patients who did not have any congenital anomalies
• The diagnosis of multiple accessory pathways depends on detailed electrocardiographic and electrophysiological studies especially after successful abiation of the first accessory pathway.
• Multiple accessory pathways can treated safely by radiofrequency catheter ablation conventional or with use of STEROT AX!S in one session with high success rate: and low incidence of recurrence and complication.
• APs resistant to conventional RF ablation were observed among APs and were more common in the CS. Irrigated tip catheter ablation successfully eliminated without any serious complications, irrespective of their location.