Catheter Ablation of Pediatric Focal XXXX : Ten-Year Experience Using Modern Mapping Systems.

@entity591 @entity1 @entity955
UNASSIGNED: Experience of catheter ablation of pediatric @entity591 ( @entity591 ) is still limited. There are data which were gathered prior to the introduction of modern 3D mapping and navigation systems into the clinical routine. Accordingly, procedures were associated with significant fluoroscopy and low success rates. The aim of this study was to present clinical and electrophysiological details of catheter ablation of pediatric @entity591 using modern mapping systems. Since March 2003, 17 consecutive @entity1 <20  years underwent electrophysiological study (EPS) for @entity591 using the NavX(  ) system (n  =  7), the non-contact mapping system (n  =  6) or the LocaLisa(  ) system (n  =  4), respectively. Radiofrequency was the primary energy source; cryoablation was performed in selected @entity1 with a focus close to the AV node. In 16 @entity1 , a total number of 19 @entity955 (right-sided n  =  13, left-sided n  =  6) could be targeted. In the remaining @entity1 , @entity591 was not present/inducible during EPS. On an intention-to-treat basis, acute success was achieved in 14/16 @entity1 (87.5  %) with a median number of 11 (1-31) energy applications. Ablation was unsuccessful in two @entity1 due to an epicardial location of a right atrial focus (n  =  1) and a focus close to the His bundle (n  =  1), respectively. Median procedure time was 210 (84-332)  min, and median fluoroscopy time was 13.1 (4.5-22.5)  min. In pediatric @entity1 with @entity591 , 3D mapping and catheter ablation provided improved clinical quality of care. Catheter ablation may be considered early in the course of treatment of this @entity591 in symptomatic @entity1 .
