Implantation of a universal self-expanding aortic bioprosthesis (transcatheter and sutureless) for minimally invasive surgery into a silicone 3-dimensional model of the aortic root

• Bogachev-Prokophiev A.V.
• Zalesov A.S.
• Sharifulin R.M.
• Vladimirov S.V.
• Afanasyev A.V.
• Tsaroev B.S.
• Islomov A.A.
• Chernyavskiy A.M.

Abstract

Aim – to test the first domestic universal transcatheter bioprosthesis for aortic valve replacement in a 3D model of the aortic root in an in vitro experiment.

Material and methods. Implantation of a prototype transcatheter aortic bioprosthesis with a self-expanding nitinol frame was performed in the aortic valve position of a silicone 3D model of the aortic root. The model was created using multislice computed tomography data from a patient with severe degenerative aortic stenosis.

Results. Adequate orientation of the ventricular and aortic components of the bioprosthesis was achieved, along with reliable circumferential coverage and adherence of the annular part of the frame, ensuring stable fixation of the prosthesis in the aortic position of the artificial aortic root.

Conclusion. The prototype of the universal aortic bioprosthesis demonstrated effectiveness when implanted into the aortic valve position of the 3D aortic root model.

Keywords:aortic valve; sutureless aortic prosthesis; transcatheter aortic valve replacement; TAVI

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