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Fluoroscopic steps of implantation of Flex II UNI occluder (Occlutech GmbH, Jena, Germany) with equally sized discs (28.5 mm × 28.5 mm) under rotational intracardiac echo by Ultra ICE (black asterisk). (A–C) left and right disc opening; (D,E) pull and push maneuver to test device stability; (F) device deployed. Red arrow, radiopaque polypropylene knot.
