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Updated: Dec 23, 2025

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
Published on: April 11, 2025
A single-loop macroreentrant biatrial flutter identified by the Rhythmia mapping system
Chengye Di1, Weiye Huang2, Mingming Wang3
1Cardiac Electrophysiology Department, First Department of Cardiology, TEDA International Cardiovascular Hospital, Tianjin, China.
Abstract:
We herein present a rare case of perimitral annulus (MA) counterclockwise single-loop macro-reentrant biatrial flutter utilizing Bachmann's bundle (BB), the atrial septum and the coronary sinus (CS) ostium as the critical components of the reentrant circuit, even though the left atrial anterior line was blocked. By acknowledging the interatrial conduction via the BB and the CS identified by the ultrahigh-resolution mapping result, we could understand the atrial flutter mechanism and successfully treat the patient.
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