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. 2023 Mar 30;10:1095661. doi: 10.3389/fcvm.2023.1095661

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© 2023 Onorato, Grancini, Monizzi, Mastrangelo, Fabbiocchi and Bartorelli.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Intraprocedural rotational intracardiac Echo by Ultra ICE (mechanical 9F/9 MHz 360° scan probe, Ultra ICE™, EP technologies, BSC, CA, United States) in the parasagittal long axis (“four chamber”) plane showing procedural steps (A–C) of implantation of Flex II UNI occluder (Occlutech GmbH, Jena, Germany) with equally sized discs (28.5 mm × 28.5 mm) (orange asterisk); (D) after agitated saline solution injection from the femoral vein, no residual shunt immediately after device release. RA, right atrium; LA, left atrium; DS, delivery sheath across the septal fenestration.