Key result
Multipolar-guided RF ablation successfully eliminates swallowing-induced atrial tachycardia near the right superior pulmonary vein.
Why the study?
Swallowing-induced atrial tachycardia is a rare condition requiring detailed mapping for effective ablation.
Case Report (n=1)
No
Hypothesis-generating for multipolar mapping in rare swallowing-induced atrial tachycardia; prospective studies needed before clinical adoption.
We herein report a case of a 52-year-old woman who presented with a history of recurrent palpitations that occurred during swallowing solid food. On a Holter electrocardiogram, paroxysmal atrial tachycardias (PATs) were detected while eating. We mapped the right atrium (RA) with a multipolar mapping catheter while she swallowed a rice ball and it was revealed that the earliest endocardial breakthrough was on the anterior septal side near the superior vena cava junction of the RA. We successfully eliminated PAT at both the site in the RA and the adjacent right superior pulmonary vein ostium. After ablation, no PAT was documented while eating.
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Onishi et al. (2016) conducted a case report in Swallowing-induced atrial tachycardia (n=1). Radiofrequency catheter ablation with a multipolar mapping catheter (PentaRay NAV) was evaluated on Elimination of paroxysmal atrial tachycardia while eating. Radiofrequency catheter ablation guided by a multipolar mapping catheter successfully eliminated swallowing-induced atrial tachycardia originating near the right superior pulmonary vein ostium.
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