Key result
Radiofrequency ablation successfully abolished an iatrogenic atrioventricular re-entry tachycardia within the surgical anastomosis in a 16-year-old female post-Fontan operation.
Case Report (n=1)
Radiofrequency ablation can successfully treat iatrogenic atrioventricular re-entry tachycardia arising from a surgical anastomosis following a Fontan operation.
May support evaluating anastomotic sites in post-Fontan ablation; single-case data leaves open reproducibility and durability.
A 16 year old female with tricuspid atresia had undergone a Fontan operation at four years of age. Two years later she first presented with a narrow complex tachycardia which could only be partially controlled on flecainide in high doses. On electrophysiological study, the tachycardia was found to be due to atrioventricular re-entry within the surgical right atrial to right ventricular outflow tract anastomosis. Radiofrequency ablation at this site abolished the arrhythmia and she is now symptom-free on no medication.
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Rosenthal et al. (1997) conducted a case report in Tricuspid atresia, post-Fontan operation, narrow complex tachycardia (n=1). Radiofrequency ablation was evaluated on Abolition of arrhythmia. Radiofrequency ablation successfully abolished an iatrogenic atrioventricular re-entry tachycardia within the surgical anastomosis in a 16-year-old female post-Fontan operation.
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