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Pediatric Tachyarrhythmia and Radiofrequency Catheter Ablation: Results From 1993 to 2011

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Author(s)
Yeo Hyang KimHyoung-Seob ParkMyung Chul HyunYoon-Nyun Kim
Keimyung Author(s)
Kim, Yeo HyangPark, Hyoung SeobKim, Yoon Nyun
Department
Dept. of Pediatrics (소아청소년학)
Dept. of Internal Medicine (내과학)
Journal Title
Korean Circulation Journal
Issued Date
2012
Volume
42
Issue
11
Keyword
PediatricsTachycardiasupraventricularCatheter ablation
Abstract
Background and Objectives : We performed a retrospective study to elucidate the frequency of tachycardia mechanisms and the characteristics of accessory pathways (APs), confirmed by radiofrequency catheter ablation (RFCA) in pediatric tachycardia. In addition, we analyzed the efficacy and safety of pediatric RFCA. Subjects and Methods : The authors retrospectively reviewed the records of a total of 260 patients (aged 2 to 18 years) who had undergone RFCA between August 1993 and July 2011 at two medical centers in Daegu. Results : Two hundred and sixty patients underwent 272 RFCAs at less than 18 years of age. Of these 260 patients, 9 patients (3%) were younger than 6 years, and 175 patients (67%) were older than 12 years. The tachycardia mechanisms observed were atrioventricular reentry tachycardia (AVRT) in 175 patients (65%), atrioventricular nodal reentry tachycardia (AVNRT) in 83 patients (30%), ventricular tachycardia in 12 patients (4%), and atrial tachycardia in 2 patients (0.7%). Among the patients with AVRT, there were 94 concealed APs and 81 manifest APs. Left-side APs were more common in concealed APs than in manifest APs (72/94, 77% vs. 33/81, 41%, p<0.001). Sixty-six percent (55/83) of AVNRT cases were located at the M1 and/or M2 sites. Four patients had multiple tachycardia mechanisms (AVNRT+AVRT) and 9 patients had multiple APs. The recurrence rate was 5% (13/272). Of these recurrent cases, 12 patients had AVRT. The overall success rate was 95%. Conclusion : Pediatric RFCA provides a good success rate and an acceptable recurrence. In addition, we suggest that the APs location may be associated with concealed or manifest property of APs.
Keimyung Author(s)(Kor)
김여향
박형섭
김윤년
Publisher
School of Medicine
Citation
Yeo Hyang Kim et al. (2012). Pediatric Tachyarrhythmia and Radiofrequency Catheter Ablation: Results From 1993 to 2011. Korean Circulation Journal, 42(11), 735–740. doi: 10.4070/kcj.2012.42.11.735
Type
Article
ISSN
1738-5520
DOI
10.4070/kcj.2012.42.11.735
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/36058
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Internal Medicine (내과학)
1. School of Medicine (의과대학) > Dept. of Pediatrics (소아청소년학)
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