Korean J Pediatr.  2007 Nov;50(11):1085-1090. 10.3345/kjp.2007.50.11.1085.

Results of radiofrequency catheter ablation in children and adolescent with tachyarrhythmia

• Chang YB
• Lee SH
• Kang EY
• Rhee KS
• Joo CU

• KMID: 2279367
• DOI: http://doi.org/10.3345/kjp.2007.50.11.1085

Abstract

PURPOSE: Radiofrequency catheter ablation (RFCA) has become an effective therapeutic modality for treating pediatric tachyarrhythmias. Using conventional RFCA catheters, ablation of parahisian accessory pathways may be difficult and have high risk for heart block. We reviewed the efficacy and complications of the RFCA in children and adolescent with arrhythmias including parahisian accessory pathways.
METHODS
We studied 48 patients (aged 2 years to 20 years) who had undergone RFCA from August 2003 to March 2007. We reviewed clinical findings, electrophysiologic studies, RFCA data, complications, and follow-up results of the patients.
RESULTS
Mean age of the patients was 13.1 years. Numbers and types of arrhythmias (age, acute success rate) were as follows: 19 WPW syndrome including 5 parahisian accessory pathways (13.74.6 yr, 18/19), 11 atrioventricular reentrant tachycardia with concealed bypass tract (12.35.0 yr, 10/11), 13 atrioventricular nodal reentrant tachycardia (12.64.4 yr, 13/13), 4 atrial flutter (13.07.4 yr, 3/4), and 1 ventricular tachycardia (20 yr, 1/1). Associated cardiac structural lesion was not detected in 48 patients. The recurrence rate was 6.5%, and the final success rate was 93.8%.
CONCLUSION
These results suggest that RFCA is a highly effective treatment method in children and adolescent with tachyarrhythmia.

Keyword

Tachycardia; Radiofrequency Catheter Ablation; Children

MeSH Terms

Adolescent*
Arrhythmias, Cardiac
Atrial Flutter
Catheter Ablation*
Catheters
Child*
Follow-Up Studies
Heart Block
Humans
Recurrence
Tachycardia*
Tachycardia, Atrioventricular Nodal Reentry
Tachycardia, Ventricular
Wolff-Parkinson-White Syndrome