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Updated: Oct 26, 2025

High-Resolution Endocardial and Epicardial Optical Mapping in a Sheep Model of Stretch-Induced Atrial Fibrillation
Published on: July 29, 2011
Paroxysmal Atrial Fibrillation With Both Triggers and Rotational Drivers Within the Right Atrial Appendage
Marshall B Marcus1, Jamie A Shein1, Aditi S Vaishnav1
1Department of Cardiology, Lenox Hill Hospital, New York, New York.
Abstract:
A 48-year-old woman with paroxysmal atrial fibrillation (AF) underwent an electrophysiology study after 2 previous failed ablations. Noninvasive mapping suggested AF initiation from the right atrial appendage (RAA) with rotational drivers of AF in the RAA. Invasive mapping confirmed these findings. The patient was successfully treated with cryoballoon RAA isolation. (Level of Difficulty: Intermediate.).
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