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. 2023 Aug 11;11(8):e7794. doi: 10.1002/ccr3.7794

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© 2023 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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(A) Intraprocedural real‐time 3D‐TEE volume rendering view showing puncture needle (red arrow) as tenting of the septum. (B) Puncture needle (red arrow) guided by real‐time 3D‐TEE to the posterior side. (C) Fluoroscopic view showing puncture needle (red arrow) at the inferoposterior side of the device. (D) Steerable guide catheter approaching the mitral valve at nearly 30° as estimated by the pre‐procedural TEE. ASO, Amplatzer Septal Occluder; SGC, steerable guide catheter; TEE, transoesophageal echocardiography.