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Case Reports
Gap-related Pulmonary Vein and Left Atrial Flutter Mimicking Cavotricuspid Isthmus-dependent Atrial Flutter.
- Tomo Komaki, Masahiro Ogawa, Yoshiaki Idemoto, Joji Morii, Keijiro Saku, and Shinichiro Miura.
- Department of Cardiology, Fukuoka University School of Medicine, Japan.
- Intern. Med. 2020 Jun 1; 59 (11): 1413-1416.
AbstractWe herein report a 79-year-old man with recurrent atrial flutter (AFL) following catheter ablation for pulmonary vein (PV) isolation and block line of the cavotricuspid isthmus. An electrophysiological study and three-dimensional mapping results revealed left atrium (LA)-PV macroreentrant flutter caused by a conduction gap, possibly correlated to prior application, which mimicked cavotricuspid isthmus-dependent AFL. This LA-PV flutter was terminated after applying radiofrequency to the gap at the antrum near the bottom left inferior PV in the posterior LA wall. During follow-up, the patient did not present with atrial tachyarrhythmias; antiarrhythmic drugs were therefore not administered.
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