New data clarify leaflet thickening in TAVI and surgical aortic prostheses

New data suggest that thickening of the valve leaflets following implantation of a transcatheter or surgical aortic valve bioprosthesis is relatively rare, not linked to short-term clinical events, and not unique to any one type of valve. Longer-term follow-up and larger studies looking specifically at this issue are warranted, experts said at a special session devoted to the emerging understanding of the phenomenon.

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