Adenosine triphosphate successfully exposed dormant pulmonary vein conduction during a re-do ablation, and its elimination cured recurrent atrial tachycardia with no recurrence at 6 months.
Case Report (n=1)
Does adenosine triphosphate administration during re-do ablation expose dormant pulmonary vein conduction and help cure recurrent atrial tachycardia in patients with prior PVI?
Evaluating dormant pulmonary vein conduction using adenosine triphosphate during re-do ablation can effectively identify and cure the source of recurrent atrial tachycardia after initial PVI.
A 61-year-old man suffered from atrial tachycardia (AT) following pulmonary vein isolation (PVI) treatment of atrial fibrillation. During a re-do procedure, all pulmonary veins (PVs) were isolated from the left atrium (LA) and programmed stimulation could not induce any atrial arrhythmias. Adenosine triphosphate exposed dormant PV-LA conduction at the right superior PV. PV firing during the reconnection caused AT with the same P-wave morphology as clinical AT. For 6 months after the elimination of that dormant PV conduction, the patient has been free of any AT. Evaluation of dormant PV conduction was effective in curing the recurrent AT after PVI.
Miyazaki et al. (Thu,) conducted a case report in Recurrent atrial tachycardia after pulmonary vein isolation (n=1). Adenosine triphosphate evaluation during re-do ablation was evaluated on Freedom from atrial tachycardia. Adenosine triphosphate successfully exposed dormant pulmonary vein conduction during a re-do ablation, and its elimination cured recurrent atrial tachycardia with no recurrence at 6 months.
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