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Updated: Jul 21, 2025
High-Resolution Endocardial and Epicardial Optical Mapping in a Sheep Model of Stretch-Induced Atrial Fibrillation
Published on: July 29, 2011
Epicardial Potential in the Left Atrium During Posterior Wall Isolation in Persistent Atrial Fibrillation
Ankita Dubey1, Ammar Ahmed2, Harshil Patel2
1Department of Internal Medicine, Ascension Providence Hospital, Michigan State University/College of Human Medicine, Grand Rapids, MI, USA.
Abstract:
Pulmonary vein isolation (PVI) is used for rhythm control in atrial fibrillation (AF). Posterior wall isolation (PWI) is often an adjunct to PVI. Successful PWI is limited by esophageal location, epicardial bridging signals, tissue thickness, and mapping catheter resolution. High-density grid mapping catheters can assist with PWI. Here, we report a case of a 71-year-old woman with persistent AF who underwent PVI and PWI with high-density grid mapping catheters, thus demonstrating the use of omnipolar technology in facilitating successful PWI.
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