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Percutaneous transcatheter aortic valve implantation (TAVI) is an emerging technique for the treatment of aortic stenosis (AS). By this method, a bioprosthetic valve (bovine pericardium) attached to a stent can be deployed in the aortic valve position via a catheter delivery system inserted through either the femoral artery or via the apex of the left ventricle. This technique is available in Europe and is being considered by the FDA for release in the United States.

Transcatheter Aortic Valve Implantation vs Surgical AVR for Severe Aortic Stenosis