title: Pediatric radiofrequency catheter ablation: results of initial 100 consecutive cases including congenital heart anomalies.
abstract: Radiofrequency catheter ablation (RFCA) has recently become a management option for pediatric tachycardia. We reviewed the records of a total of 100 patients (aged 10 months to 19 yr) who had undergone RFCA, from March 2000 to June 2004. Types of arrhythmia (age, acute success rate) were as follows: atrioventricular reentrant tachycardia (AVRT, 9.0+/-3.7 yr, 66/67), atrioventricular nodal reentrant tachycardia (AVNRT, 13+/-2.5 yr, 16/16), ectopic atrial tachycardia (6.4+/-3.3 yr, 5/5), junctional ectopic tachycardia (10 month, 1/1), ventricular tachycardia (12+/-4.9 yr, 6/6), postsurgical intraatrial reentrant tachycardia (15.6+/-4.1 yr, 2/3), twin node tachycardia (4 yr, 0/1), and His bundle ablation (9 yr, 1/1). The age of AVNRT was older than that of AVRT (p=0.002). Associated cardiac disease was detected in 17 patients, including 6 univentricular patients, and 3 Ebstein's anomaly patients. RFCA for multiple accessory pathways required longer fluoroscopic times than did the single accessory pathway (53.9+/-4.8 vs. 36.2+/-24.1 min; p=0.03), and was associated with a higher recurrence rate (3/9 vs. 3/53; p=0.03). Regardless of the presence or absence of cardiac diseases, the overall acute success rate was 97% without major complications, the recurrence rate was 8.2%, and the final success rate was 97%. This experience confirmed the efficacy and safety of RFCA in the management of tachycardia in children.
authors.affiliation: Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea.
authors.forename: Eun-Jung
authors.initials: EJ
authors.lastname: Bae
authors.forename: Ji-Eun
authors.initials: JE
authors.lastname: Ban
authors.forename: Jung A
authors.initials: JA
authors.lastname: Lee
authors.forename: Sun-Mi
authors.initials: SM
authors.lastname: Jin
authors.forename: Chung-Il
authors.initials: CI
authors.lastname: Noh
authors.forename: Jung-Yun
authors.initials: JY
authors.lastname: Choi
authors.forename: Yong-Soo
authors.initials: YS
authors.lastname: Yun
mesh_terms: D017115:Catheter Ablation / Q000706:statistics & numerical data*; D002648:Child; D015897:Comorbidity; D005260:Female; D006330:Heart Defects, Congenital / Q000453:epidemiology* / Q000601:surgery*; D006801:Humans; D007723:Korea / Q000453:epidemiology; D008297:Male; D010865:Pilot Projects; D011183:Postoperative Complications / Q000453:epidemiology; D015995:Prevalence; D012189:Retrospective Studies; D018570:Risk Assessment / Q000379:methods*; D012307:Risk Factors; D013610:Tachycardia / Q000453:epidemiology* / Q000601:surgery*; D016896:Treatment Outcome