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- W1937622140 abstract "Objectives Patient–prosthesis mismatch has been identified as a risk factor for mortality after aortic valve replacement and for structural valve deterioration (SVD) in patients receiving a bioprosthetic aortic valve. The aim of the present study was to compare the incidence of aortic valve bioprosthesis replacement for SVD in patients with mismatch to a population without mismatch. Methods Three hundred eighty-seven adult patients who underwent aortic valve replacement with a bioprosthesis from 1974 to 2009 were retrospectively reviewed. Mismatch was considered to be present if the anticipated indexed effective orifice area was <0.70 cm2/m2. The median follow-up period was 7.2 years. Follow-up was 97% complete. Results Patient–prosthesis mismatch was present in 12% of the study population (n = 47). Ten-year freedom from reoperation for aortic bioprosthesis replacement was 74.3 ± 3.2%. During follow-up, 111 patients underwent reoperation for aortic bioprosthesis replacement. Causes of aortic bioprosthesis replacement were SVD of the bioprosthesis (n = 96), paravalvular leak (n = 10), and acute endocarditis (n = 5). According to unadjusted Kaplan–Meier analysis, patients with mismatch had a higher incidence of aortic bioprosthesis replacement for SVD when compared with patients without mismatch (log rank test: p 0.05). This result was confirmed by multivariable Cox regression analysis, which identified two independent predictors of aortic bioprosthesis replacement for SVD: patients' age (hazard ratio (HR) 0.967) and patient–prosthesis mismatch (HR 2.161). Conclusion Patients suffering from mismatch were twice as likely to undergo reoperation for aortic bioprosthesis replacement for SVD than those without mismatch. doi: 10.1111/jocs.12345 (J Card Surg 2014;29:439–444)" @default.
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- W1937622140 date "2014-04-29" @default.
- W1937622140 modified "2023-09-27" @default.
- W1937622140 title "Patient-Prosthesis Mismatch in Patients Undergoing Bioprosthetic Aortic Valve Implantation Increases Risk of Reoperation for Structural Valve Deterioration" @default.
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- W1937622140 doi "https://doi.org/10.1111/jocs.12345" @default.
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