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Right Atrial Tachycardia in a Patient with Severe Atrial Conduction Disturbances and an Anatomically Normal Heart
Author(s) -
NOVAK PAUL G.,
MACLE LAURENT,
THIBAULT BERNARD,
GUERRA PETER G.
Publication year - 2005
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.1540-8159.2005.09581.x
Subject(s) - medicine , atrial flutter , reentry , cardiology , atrial tachycardia , tachycardia , ablation , atrial fibrillation , catheter ablation , heart disease
We describe a case of abnormal right atrial (RA) conduction in a patient with atrial tachycardia (AT) but no history of structural heart disease or cardiac surgery. Following ablation of AT, the patient experienced typical atrial flutter (AFL) and a postcardioversion ECG suggestive of low atrial rhythm. Repeat EPS and three‐dimensional electroanatomic activation mapping showed unusual RA activation during SR. This case illustrates the possibility that abnormal intraatrial conduction may lead to unusual patterns of activation in the RA which can serve as a necessary substrate for the initiation and maintenance of macro‐reentry circuits.