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. 2022 Dec 12;25(2):600–609. doi: 10.1093/europace/euac216

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© The Author(s) 2022. Published by Oxford University Press on behalf of the European Society of Cardiology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Right-sided accessory pathways with QRS transition ≤ V3. Schematic representation of the TV junction region as viewed in the left anterior oblique view (60°) illustrating posteroseptal (A) and anteroseptal (B) AP-localization. The adjacent Cabrera circles indicate the corresponding leads with the most positive delta wave (bold arrow). ECG-identification of a right-sided posteroseptal AP with the EASY-WPW algorithm (C).TV, tricuspid valve; PS, posteroseptal; AS, anteroseptal; HIS, His bundle; AP, accessory pathway.