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Updated: Feb 8, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
Left atrial low-voltage zone ablation of persistent atrial fibrillation in a patient with myotonic dystrophy: A case
Toyokazu Otsubo1, Takeshi Tsuchiya2, Takanori Yamaguchi3
1Department of Cardiology and Clinical Examination Faculty of Medicine Oita University Yufu Japan.
Abstract:
We here report a case of a 32-year-old man with genetically diagnosed myotonic dystrophy and persistent atrial fibrillation (AF) who underwent a low-voltage zone (LVZ) ablation. His cardiac function was normal except for a prophylactic pacemaker implantation for a high risk of complete atrioventricular block. An LVZ was found in the anteroseptal left atrium during sinus rhythm and was ablated during induced AF after a pulmonary vein antrum isolation, which terminated the AF and rendered it noninducible by rapid pacing and/or isoproterenol. During 20 months of follow-up, no atrial tachyarrhythmias were observed with pacemaker monitoring of antiarrhythmic drugs.
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