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. 2021 Jul 2;10(13):2979. doi: 10.3390/jcm10132979

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Representative image to demonstrate and the temporal stability of region of interests (ROIs) from CARTOFINDER mapping. Upper panels: Findings from CARTOFINDER mapping prior to ablation. Lower panels: Findings from CARTOFINDER mapping after ablation. (A,C,D,F) Persistent focal activity (green spots) in the left atrial appendage, independent of pulmonary vein isolation and left atrial substrate modification. (A,D) In contrast, the rotational activity (blue spots) disappeared after catheter ablation. (B,E) This was also the case for focal activity (green spots) around the left sided pulmonary veins.