Key result
Ablation using a combined antegrade and retrograde mapping approach successfully treated atrioventricular nodal reentry tachycardia in a patient following the atriopulmonary Fontan procedure.
Case Report (n=1)
Demonstrates that AVNRT can be successfully ablated using a combined antegrade and retrograde mapping approach in patients with complex anatomy following an atriopulmonary Fontan procedure.
Supports feasibility of combined mapping for AVNRT ablation in post-Fontan anatomy; hypothesis-generating and requires validation in larger series.
Arrhythmia is a prevalent complication of the atriopulmonary Fontan procedure, most commonly macro-reentrant tachycardia within the right atrium as a consequence of long-term morphological and haemodynamic changes coupled with surgical intervention. We describe a patient with a long history of supraventricular arrhythmia following the atriopulmonary Fontan procedure identified as atrioventricular nodal reentry tachycardia at electrophysiological assessment. Despite anatomical and technical difficulties related to right atrial morphological changes and loss of the tricuspid annulus with its associated anatomical landmarks, the arrhythmia was successfully ablated using a combined antegrade and retrograde mapping approach.
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Abrams et al. (2006) conducted a case report in Atrioventricular nodal reentry tachycardia following atriopulmonary Fontan procedure (n=1). Ablation using a combined antegrade and retrograde mapping approach was evaluated on Successful ablation of arrhythmia. Ablation using a combined antegrade and retrograde mapping approach successfully treated atrioventricular nodal reentry tachycardia in a patient following the atriopulmonary Fontan procedure.
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