Abstract：Objective To assess efficacy and safety of radiofrequency catheter ablation for su-praventricular tachycardia in pediatric patients. Methods A retrospective study was made in a total of 39 pediatric patients， who underwent radiofrequency catheter ablation for supraventricular tachy-cardia in our institute. Results Structural heart disease was excluded in all of the patients， inclu-ding 21 boys and 18 girls，with mean age 11.0±3.5 years（range 4.7 to 18.4 years）. Electro-physiologic studies revealed atrioventricular reentry，atrioventricular nodal reentry and ectopic atrial tachycardia in 25，11 and 3 patients，accounting for 64.1%，28.2% and 7.7%，respectively. Among 25 patients with atrioventricular reentry tachycardia，12 patients had Wolff-Parkinson-White accessory pathway and the other 13 patients had concealed pathway. The involving pathways located in left free-wall，right free-wall and right septum were identified in 9，8 and 8 patients respectively. Ablation success was achieved in 37 patients（94.9%） and recurrence occurred in 2 patients （5.1%）. No complication was found. Conclusions Our primary experience indicated radiofrequency catheter ablation is a safe and effective therapy for children with supraventricular tachycardia.
2012, Vol. 21 
