Population‐Based Single‐Center Outcome for Pediatric Catheter Ablation of Common Supraventricular Tachycardias

Abstract

In our cohort study of 318 pediatric patients, with a mean follow-up of 5 years, SVT ablation was successful for 91% of the patients. Arrhythmia recurred in 6% of the patients. The increased sinus rate following radiofrequency ablation, observed in 4% of pediatric patients, constitutes a new finding, which warrants attention in other patient series.

Is There a Difference in Tachycardia Cycle Length during SVT in Children with AVRT and AVNRT?

“…Atrioventricular (AV) reentry tachycardia (AVRT) and atrioventricular nodal reentry tachycardia (AVNRT) are the two most common forms of supraventricular tachycardia (SVT) seen in children . The treatment and management for both substrates has evolved over the last several decades, with ablation now being the primary form of treatment for both AVRT and AVNRT in children and adolescents . Additional methods to help differentiate AVRT from AVNRT in young patients could be helpful to electrophysiologists in guiding therapy and for counseling families with regard to treatment options and risks of AV nodal injury during invasive electrophysiology (EP) study (EPS).…”

“…1,2 The treatment and management for both substrates has evolved over the last several decades, with ablation now being the primary form of treatment for both AVRT and AVNRT in children and adolescents. [3][4][5] Additional methods to help differentiate AVRT from AVNRT in young patients could be helpful to electrophysiologists in guiding therapy and for counseling families with regard to treatment options and risks of AV nodal injury during invasive electrophysiology (EP) study (EPS). There are limited adult data suggesting the tachycardia cycle length (TCL) of AVRT is shorter than AVNRT, though there are scant data suggesting there is no difference in children.…”

Evolution of Clinical and Electrophysiological Data in Children with a Preexcitation Syndrome

“…The high rate of success of ablation of the group of Pappone and Santinelli should not overshadow the risks of catheterization and radiation in children and despite recent improvement of the results and the safety for some groups …”

Age-related location of manifest accessory pathway and clinical consequences

“…In the literature, complications of RF AP ablations were not rare and mainly reported for AS location [23] , [24] , [25] , [26] , [27] , [28] , [29] , [30] despite a trend for an actual lower risk [31] , [32] , [33] , [34] . In the study of Shaffer [12] in children, inadvertent atrioventricular block was related to the ablation anatomic site: (2.7%) anteroseptal, (10.4%) midseptal, and (1.0%) right posteroseptal sites (P = 0.0007 for anteroseptal, P = 0.0001 for midseptal, and P = 0.17 for right posteroseptal versus left septal sites).…”