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. 2018 May 30;11(6):e006242. doi: 10.1161/CIRCEP.118.006242

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© 2018 The Authors.

Circulation: Arrhythmia and Electrophysiology is published on behalf of the American Heart Association, Inc., by Wolters Kluwer Health, Inc. This is an open access article under the terms of the Creative Commons Attribution Non-Commercial-NoDerivs License, which permits use, distribution, and reproduction in any medium, provided that the original work is properly cited, the use is noncommercial, and no modifications or adaptations are made.

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Figure 1. — Left atrial low-voltage areas (LVAs) are associated with outcome after atrial fibrillation (AF) ablation. A, Example of left atrial voltage maps. Patients were divided into 3 groups according to the extent of LVAs. B, Kaplan–Meier curves estimating freedom from AF after pulmonary vein isolation (PVI) only, which shows a strong correlation between LVAs and procedure outcome. C, Kaplan–Meier curves for patients that received PVI and—in case of significant LVAs—additional substrate modification.