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Efficacy and Safety of Cryoablation of Parahissian Accessory Pathways in Children: A Single Institution Study
Author(s) -
YILDIRIM IŞIL,
KARAGÖZ TEVFIK,
ERTUĞRUL İLKER,
KARAGÖZ AYŞE HEVES,
ÖZER SEMA
Publication year - 2013
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/pace.12268
Subject(s) - medicine , cryoablation , surgery , ablation , atrioventricular block , retrospective cohort study , supraventricular arrhythmia , radiofrequency ablation , catheter ablation , anesthesia , atrial fibrillation
Background Catheter cryoablation of supraventricular tachycardias involving the perinodal regions is considered to be a safer alternative compared to radiofrequency ablation. Limited information is available for efficacy, midterm outcomes, and complications regarding the ablation of parahissian accessory pathways (APs) in pediatric patients. Methods A retrospective review of all pediatric patients who underwent cryoablation for treatment of a parahissian AP was performed. Results Twenty‐five patients (median age 13 years and weight 45.6 kg) underwent cryoablation of a parahissian AP. Median number of cryolesions applied was four (range: 3–6). Initial procedural success was achieved in 23 patients (23/25, 92%). Transient third‐degree atrioventricular (AV) block was noted in two patients. There was no permanent AV block. Transient right bundle branch block (RBBB) was observed in one patient and permanent RBBB occurred in two patients. Of the patients successfully ablated with cryo, there was only one recurrence (1/23, 4.3%) over a follow‐up of 17.5 months (range 6–34 months). Conclusion Cryoablation of parahissian APs is both safe and effective with a low risk of recurrence in pediatric patients.