Key result
Swallowing-induced tachycardia originated in the high right atrium prior to esophageal peristalsis, likely due to triggered automaticity, and was refractory to pharmacologic blockade.
Case Report (n=1)
Swallowing-induced tachycardia is a rare disorder originating in the high right atrium, likely due to triggered automaticity, and may be resistant to standard pharmacologic interventions.
May warrant EP evaluation in refractory cases; leaves open mechanism-specific therapies.
A 38-year-old man developed palpitations after swallowing. Intracardiac recordings and esophageal manometry were obtained during episodes of swallowing-induced tachycardia. These studies demonstrated that the site of origin of the tachycardia was the high right atrium and that the onset of the tachycardia occurred prior to the arrival of the peristaltic wave in the esophagus. Evaluation of the tachycardia revealed that the likely mechanism for the tachycardia was triggered automaticity. Autonomic blockade and other pharmacologic interventions failed to prevent episodes of tachycardia. Swallowing-induced tachycardia is a rare disorder triggered by an undefined neural reflex arc.
No takes yet. Share an insight, caveat, or question.
Greenspon et al. (1988) conducted a case report in Swallowing-induced tachycardia (n=1). Swallowing was evaluated on Tachycardia onset and mechanism. Swallowing-induced tachycardia originated in the high right atrium prior to esophageal peristalsis, likely due to triggered automaticity, and was refractory to pharmacologic blockade.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: