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- W2077030351 abstract "Background: Transcatheter aortic valve implantation (TAVI) is an emerging alternative to palliative medical therapy for nonsurgical patients with severe aortic stenosis. There is a paucity of detailed data on the management and outcome of complications related to the sub-optimal deployment of the prosthesis. We appraised the incidence and management of early implant failure occurring during TAVI. Methods: Of 110 patients who underwent TAVI using the third generation 18-French CoreValve ReValving System (Medtronic, MN) in our Institution between June 2007 and January 2010, we identified those experiencing early implant failure and reported on their management and clinical outcome. The primary endpoint was the incidence of major adverse cardiovascular and cerebrovascular event (MACCE) at 30 days and mid-term follow up. Results: Early implant failure occurred in 18 of 110 patients (16.3%). The most common cause was prosthesis under-expansion conditioning moderate to severe peri-valvular leak (44.4%). Prosthesis deployment too low or too high with respect to the aortic annulus leading to severe peri-valvular leak occurred in 22.2% and 5.5% of patients, respectively. Need of valve retrieve after the first attempt of deployment occurred in four cases (22.2%). Prosthesis embolization in the ascending aorta occurred in 5.5% of patients who experienced early implant failure. All implant failure cases were managed percutaneously with gain in aortic valve area from 0.44 ± 0.17 to 1.28 ± 0.27 cm2 (P < 0.001), decrease of mean transaortic gradient from 55.00 ± 19.51 to 11.58 ± 5.91 mmHg (P < 0.001) and no MACCE at 30 days. After 11 ± 6 months, MACCE occurred cumulatively in two patients (11.1%). Conclusions: Early implant failure can complicate the TAVI procedure with the CoreValve system, but it can be managed safely and effectively with bailout transcatheter techniques, avoiding surgery, with good early and mid-term clinical and echocardiographic results. © 2010 Wiley-Liss, Inc." @default.
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- W2077030351 date "2010-04-15" @default.
- W2077030351 modified "2023-10-18" @default.
- W2077030351 title "Management of implant failure during transcatheter aortic valve implantation" @default.
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- W2077030351 doi "https://doi.org/10.1002/ccd.22595" @default.
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