Among anatomical factors affecting transcatheter aortic valve implantation (TAVI) success, aortic annulus shape plays a relevant role: an elliptic geometry may lead to gaps between the aortic root and the prosthesis, which is designed to expand circularly, resulting in paravalvular leak (PVL). In this context, the impact of different self-expanding (SE) devices is currently unknown.
The aim of the study was to compare PVL and device success rates of the Portico and Evolut R in patients with an elliptic aortic annulus and to test by computational simulations their behaviour by increasing eccentricity.
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