Non-contact three-dimensional mapping and ablation of swallowing-induced atrial tachyarrhythmias: two case reports

J Cardiovasc Electrophysiol. 2007 Nov;18(11):1206-9. doi: 10.1111/j.1540-8167.2007.00830.x. Epub 2007 May 3.

Abstract

We describe two cases of swallowing-induced tachyarrhythmias that were cured by radiofrequency ablation (RFCA) using a non-contact mapping system (NCMS). In both patients, tachyarrhythmias occurred during swallowing solids and liquids, and mapping and ablation of the arrhythmia using the NCMS was attempted during swallowing a rice ball. During a premature atrial contraction shortly after the swallow, the earliest endocardial breakthrough occurred at the right superior pulmonary vein (PV) ostium in Case 1 and at the left superior PV ostium and postero-inferior right atrium in Case 2. Guided by the NCMS catheter navigation system, the ablation catheter was easily and precisely positioned at a site where the earliest endocardial breakthrough occurred. RFCA at that site resulted in success and no recurrence or complications occurred during the follow-up in either patient.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Catheter Ablation / methods*
  • Deglutition Disorders / complications*
  • Electrophysiologic Techniques, Cardiac / methods*
  • Follow-Up Studies
  • Humans
  • Male
  • Middle Aged
  • Tachycardia, Ectopic Atrial / diagnosis
  • Tachycardia, Ectopic Atrial / etiology*
  • Tachycardia, Ectopic Atrial / surgery*
  • Treatment Outcome