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Non‐Contact Three‐Dimensional Mapping and Ablation of Swallowing‐Induced Atrial Tachyarrhythmias: Two Case Reports
Author(s) -
TADA HIROSHI,
KASENO KENICHI,
NAITO SHIGETO,
OSHIMA SHIGERU
Publication year - 2007
Publication title -
journal of cardiovascular electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.193
H-Index - 138
eISSN - 1540-8167
pISSN - 1045-3873
DOI - 10.1111/j.1540-8167.2007.00830.x
Subject(s) - medicine , ostium , swallowing , ablation , cardiology , catheter ablation , atrial tachycardia , pulmonary vein , radiofrequency catheter ablation , anesthesia , surgery
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.