A 47-year-old woman was referred for transcatheter closure of a secundum atrial septal defect (ASD). Vascular access was obtained via the right femoral vein and 16-mm ASD diameter was determined using balloon and the stop-flow sizing technique ().
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Tulip-like deformation of a nitinol septal occluder
Agostini,Gustavo Luís and Velho,Fabio Michalski and Tscheika,Anna Paula and Soccol,Ricardo Czarnobai and Pellegrini,Denise and Caramori,Paulo. Tulip-like deformation of a nitinol septal occluder. J Transcat Intervent [online]. 2022, vol.30, [cited 2026-03-06], Available from: <https://jotci.org/article/tulip-like-deformation-of-a-nitinol-septal-occluder/>. ISSN . .
Agostini,Gustavo Luís; Velho,Fabio Michalski; Tscheika,Anna Paula; Soccol,Ricardo Czarnobai; Pellegrini,Denise; Caramori,Paulo. Tulip-like deformation of a nitinol septal occluder. J Transcat Intervent, v.30, Mar. 2022. Available from: <https://jotci.org/article/tulip-like-deformation-of-a-nitinol-septal-occluder/>. acess on 06 Mar. 2026. .
AgostiniGustavo Luís, VelhoFabio Michalski, TscheikaAnna Paula, SoccolRicardo Czarnobai, PellegriniDenise, CaramoriPaulo. Tulip-like deformation of a nitinol septal occluder. J Transcat Intervent [Internet]. 2022 Mar [cited 2026 Mar 06]; 30: Available from: https://jotci.org/article/tulip-like-deformation-of-a-nitinol-septal-occluder/. .
Figure 1
(A) Transesophageal echocardiography image of 16-mm ASD diameter determined using a balloon and stop-flow sizing technique. (B) The 16-mm CeraFlex™ ASD Occluder showing the tulip shape of the left atrium disc after removal from the 12-F delivery catheter. Fluoroscopic images in two views. (C) Transesophageal echocardiography image.
, Fabio Michalski Velho
