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Iatrogenic atrioventricular bypass tract following a Fontan operation for tricuspid atresia.
  1. E. Rosenthal,
  2. J. Bostock,
  3. J. Gill
  1. Department of Paediatric Cardiology, Guy's Hospital, London.

    Abstract

    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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