Korean Journal of Pediatrics 2007;50(11):1085-1090.
Published online November 15, 2007.
Results of radiofrequency catheter ablation in children and adolescent with tachyarrhythmia
Young Beom Chang1, Seung Hyun Lee1, Eun Young Kang1, Kyoung-Suk Rhee2, Chan Uhng Joo1
1Department of Pediatrics, Internal Medicine, Chonbuk National University Medical School, Jeonju, Korea
2Institute of Cardiovascular Research, Chonbuk National University Medical School, Jeonju, Korea
소아 청소년 부정맥 환자에서 고주파 전극도자 절제술의 이용 성적
장영범1, 이승현1, 강은영1, 이경석2, 주찬웅1
1전북대학교 의과대학 소아과학교실 및 순환기내과학교실
2전북대학교 의과대학 심혈관연구소
Correspondence: 
Chan Uhng Joo, Email: joocu@chonbuk.ac.kr
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 (13.7?.6 yr, 18/19), 11 atrioventricular reentrant tachycardia with concealed bypass tract (12.3?.0 yr, 10/11), 13 atrioventricular nodal reentrant tachycardia (12.6?.4 yr, 13/13), 4 atrial flutter (13.0?.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.
Key Words: Tachycardia, Radiofrequency Catheter Ablation, Children


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