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J Tehran Heart Cent. 2013 Apr;8(2):111-5. Epub 2013 Apr 28.

Radiofrequency ablation of accessory pathways in children with complex congenital cardiac lesions: a report of three cases.

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Rajaie Cardiovascular, Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran.


Catheter ablation is an accepted, highly effective modality of treatment for cardiac arrhythmias in children. The success rate depends on the operator's experience, especially in cases involving complex anatomies. We hereby report our recent experience of successful ablation of accessory pathways in three children with complex congenital heart diseases. The first case was a 7-year-old girl with tricuspid atresia and a previous Glenn shunt, in whom a sub-epicardial overt accessory pathway was successfully ablated via the coronary sinus. The second case, a 9-year-old girl, received accessory pathway ablation via the fenestration of an extracardiac Fontan pathway. The third case was a 14-year-old boy with dextrocardia, common atrium, common ventricle, and a previous extracardiac Fontan operation, in whom ablation of a concealed accessory pathway was carried out retrogradely from the aorta. All the ablations were done in Rajaie Cardiovascular, Medical and Research Center, Tehran, and all the patients were discharged from the hospital without any complication.


Accessory atrioventricular bundle; Catheter ablation; Child; Heart defect, congenital

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