RT Journal Article T1 Impact of Pre-Existing Prosthesis-Patient Mismatch on Survival Following Aortic Valve-in-Valve Procedures. A1 Pibarot, Philippe A1 Simonato, Matheus A1 Barbanti, Marco A1 Linke, Axel A1 Kornowski, Ran A1 Rudolph, Tanja A1 Spence, Mark A1 Moat, Neil A1 Aldea, Gabriel A1 Mennuni, Marco A1 Iadanza, Alessandro A1 Amrane, Hafid A1 Gaia, Diego A1 Kim, Won-Keun A1 Napodano, Massimo A1 Baumbach, Hardy A1 Finkelstein, Ariel A1 Kobayashi, Junjiro A1 Brecker, Stephen A1 Don, Creighton A1 Cerillo, Alfredo A1 Unbehaun, Axel A1 Attias, David A1 Nejjari, Mohammed A1 Jones, Noah A1 Fiorina, Claudia A1 Tchetche, Didier A1 Philippart, Raphael A1 Spargias, Konstantinos A1 Hernandez, Jose-Maria A1 Latib, Azeem A1 Dvir, Danny K1 prosthesis-patient-mismatch K1 transcatheter aortic valve replacement K1 valve-in-valve AB The aim of this study was to determine whether the association of small label size of the surgical valve with increased mortality after transcatheter valve-in-valve (ViV) implantation is, at least in part, related to pre-existing prosthesis-patient mismatch (PPM) (i.e., a bioprosthesis that is too small in relation to body size). Transcatheter ViV implantation is an alternative for the treatment of patients with degenerated bioprostheses. Small label size of the surgical valve has been associated with increased mortality after ViV implantation. Data from 1,168 patients included in the VIVID (Valve-in-Valve International Data) registry were analyzed. Pre-existing PPM of the surgical valve was determined using a reference value of effective orifice area for each given model and size of implanted prosthetic valve indexed for body surface area. Severe PPM was defined according to the criteria proposed by the Valve Academic Research Consortium 2: indexed effective orifice area  Among the 1,168 patients included in the registry, 89 (7.6%) had pre-existing severe PPM. Patients with severe PPM had higher 30-day (10.3%, p = 0.01) and 1-year (unadjusted: 28.6%, p  Pre-existing PPM of the failed surgical valve is strongly and independently associated with increased risk for mortality following ViV implantation. YR 2018 FD 2018 LK http://hdl.handle.net/10668/12027 UL http://hdl.handle.net/10668/12027 LA en DS RISalud RD Apr 8, 2025