title: Radiofrequency catheter ablation therapy of swallowing-induced atrioventricular nodal reentrant tachycardia: report of two cases.
abstract: We describe two patients who presented with a history of recurrent palpitations on swallowing of solid food. The event-recorder and Holter monitoring documented episodic supraventricular tachycardia (SVT) initiated by atrial premature contractions (APCs). During electrophysiological study (EPS), swallowing of solid food consistently induced APCs and their activation sequence, morphology of P wave were suggestive of their right atrial origin in them. Drug challenge did not affect the APC onset during the swallowing. During EPS, slow-fast variety of atrioventricular nodal reentrant tachycardia (AVNRT) was induced and successful radiofrequency (RF) catheter ablation of slow pathway resulted in total relief of their symptoms.
authors.affiliation: Nizam's Institute of Medical Sciences, Hyderabad, India.
authors.forename: Oruganti Sai
authors.initials: OS
authors.lastname: Satish
authors.forename: San-Jou
authors.initials: SJ
authors.lastname: Yeh
authors.forename: Kuan-Hung
authors.initials: KH
authors.lastname: Yeh
authors.forename: Ming-Shien
authors.initials: MS
authors.lastname: Wen
authors.forename: Chun-Chieh
authors.initials: CC
authors.lastname: Wang
authors.forename: Chung-Chuan
authors.initials: CC
authors.lastname: Chou
authors.forename: Delon
authors.initials: D
authors.lastname: Wu
mesh_terms: D017115:Catheter Ablation; D003679:Deglutition; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000209:etiology* / Q000601:surgery*