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Isolating the Posterior Left Atrium and Pulmonary Veins with a “Box” Lesion Set: Use of Epicardial Ablation to Complete Electrical Isolation
Author(s) -
REDDY VIVEK Y.,
NEUZIL PETR,
D'AVILA ANDRE,
RUSKIN JEREMY N.
Publication year - 2008
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.1540-8167.2007.00944.x
Subject(s) - medicine , ablation , lesion , catheter ablation , left atrium , posterior wall , catheter , cardiology , atrial fibrillation , radiology , surgery
Similar to the surgical mini‐maze procedure, the posterior “box” lesion set employs linear ablation lesions along the anterior aspects of both sets of PVs connected by a roof line and an inferior line to electrically isolate the PVs and complete posterior LA wall en masse . However, creating fully transmural linear atrial lesions can be difficult to achieve, even with an irrigated ablation catheter. This report details a case wherein a combined endocardial and epicardial approach was required to create an electrically continuous posterior box lesion in a patient with persistent AF.