Key result
Accessory pathway RF ablation transitions ORT directly to AVNRT with no subsequent tachycardia recurrence.
This case demonstrates a rare transition of orthodromic atrioventricular reciprocating tachycardia into atrioventricular nodal re-entrant tachycardia during accessory pathway ablation.
Alerts electrophysiologists to possible tachycardia transition during ablation; leaves open whether dual nodal pathways warrant concurrent evaluation.
We report a patient with Wolff-Parkinson-White syndrome, in whom orthodromic atrioventricular reciprocating tachycardia directly passed over to atrioventricular nodal re-entrant tachycardia during radiofrequency ablation of the accessory pathway. After the accessory pathway ablation, there were no tachycardia recurrences.
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Peter Rakovec (2009) studied this question. Radiofrequency ablation of an accessory pathway resulted in a direct transition from orthodromic reciprocating to AV nodal re-entrant tachycardia, followed by no tachycardia recurrences.
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