Catheter-based ablation of supraventricular tachycardias in a paediatric population – a decade of experience at a single centre

摘要

Accessory atrioventricular pathways (AP) and dual AVnodal physiology are common substrates for paroxysmalsupraventricular tachycardias (SVT) in children and adolescents.Definitive treatment can be achieved by catheterablation with either radiofrequency (RF) or cryoenergy.Aim of this study was to assess effectiveness and safety ofRF- and cryoenergy ablation in a paediatric population.During the last 10 years 562 EP studies have been performedin 479 children and adolescents at our institution.Median age was 12.1 yrs (range 0.4 – 19.8). Indicationsincluded patient’s preference (67.3%), drug refractorySVT (31.5%) and malignant arrhythmias (1.2%). RF wasused in 75%, cryoenergy in 16 %, both energy sources in8%. No ablation was performed in 1%. Congenital heartdisease was present in 39 children (6.9%).