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Updated: May 27, 2026
High-Resolution Endocardial and Epicardial Optical Mapping in a Sheep Model of Stretch-Induced Atrial Fibrillation
Published on: July 29, 2011
Spontaneous demonstration of counterclockwise right atrial activation following successful isthmus ablation
Vivek Chaturvedi1, Neeraj Parakh, Vijay Trehan
1Department of Cardiology, G. B. Pant Hospital, New Delhi, India.
Abstract:
We describe an uncommon case of typical flutter with symptomatic sinus node dysfunction, in which a permanent junctional rhythm developed following ablation of the cavo-tricuspid isthmus. This rhythm activated the right atrium in counter clockwise manner thus providing spontaneous proof of unidirectional isthmus block, a phenomenon that is usually demonstrated by proximal coronary sinus pacing.
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