PMID: 22584490May 16, 2012Paper

Radiofrequency ablation of childhood arrhythmia: observational registry in 125 children

Arquivos brasileiros de cardiologia
Sissy Lara de MeloEduardo Argentino Sosa

Abstract

Radiofrequency ablation (RFA) in children is an increasingly common practice. To evaluate, in our institution, the results of RFA in children younger than 15 years. A total of 125 children submitted to RFA between May 1991 and May 2010 were analyzed. Sixty-seven (53.6%) children were males, aged between 44 days and 15 years (mean 8.6 ± 3.3 years) with median weight of 31 kg. Heart disease was present in 21 (16.8%) patients. The RFA of accessory pathways (AP) was the most common procedure (62 children - 49.6%). The RFA of nodal reentrant tachycardia (NRT) was the second most common arrhythmia in 27 (21.6%), followed by atrial tachycardia (AT) in 16 (12.8%) and ventricular tachycardias (VT) in 8 (6.4%) children. The success criteria were achieved in 86.9%, 96.1%, 80% and 62.5% of patients undergoing RFA of AP, NRT, AT and VT, respectively. Transient AVB occurred during RFA in 4 (3.2%) and LBBB in 7 (5.6%) children. Twenty-five children underwent a new RFA due to initial failure or recurrence. During the mean follow up of 5.5 ± 3.4 years, 107 (88.4%) remained without recurrence. There was no statistical difference regarding the results and the age at which the patient underwent the procedure. No child had persistent AVB or require...Continue Reading

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