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Radiofrequency Catheter Ablation of Atrial Tachycardia with Unusual Left Atrial Sites of Origin: Report of Two Cases
Author(s) -
MALLAVARAPU CHRISTOPHER,
SCHWARTZMAN DAVID,
CALLANS DAVID J.,
GOTTLIEB CHARLES D.,
MARCHLINSKI FRANCIS E.
Publication year - 1996
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.1996.tb03398.x
Subject(s) - medicine , cardiology , atrial tachycardia , catheter ablation , sinus rhythm , ablation , tachycardia , catheter , radiofrequency catheter ablation , radiofrequency ablation , atrium (architecture) , left atrium , atrial fibrillation , surgery
Two cases of successful radiofrequency catheter ablation of adult‐onset atrial tachycardia originating from the left atrium adjacent to the mitral annulus are presented. Endocardial catheter activation mapping performed by retrograde or atrial transseptal approach revealed presystolic activation at the successful ablation site in both patients, and fractionation during sinus rhythm and tachycardia in one. The 12 lead electrocardiogrnphic P wave appearance was suggestive of a left atrial tachycardia origin in both cases.