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A Wide Complex Tachycardia with Changing Atrial Activation Sequence
Author(s) -
AYOU ROMEO,
AGARWAL SHARAD,
TANG ANTHONY,
STERNS LAURENCE D.
Publication year - 2013
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.1540-8159.2011.03050.x
Subject(s) - accessory pathway , medicine , tachycardia , cardiology , ablation , supraventricular tachycardia , catheter ablation , atrial tachycardia
Change of the retrograde atrial activation sequence during radiofrequency (RF) ablation of left‐side accessory pathway can be due to another accessory pathway, another mechanism for the tachycardia, or due to intraatrial conduction block, partial or complete, caused by RF delivery to a site proximal to the site of insertion of the accessory pathway. In this case report, a temporary complete intraatrial conduction block was created by RF delivery proximal to the site of accessory pathway insertion, causing a change in the retrograde atrial activation sequence during ongoing tachycardia that was terminated by ablation at the insertion site of accessory pathway . (PACE 2013; 36:e23–e26)