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Mechanical or Biologic Prostheses for Aortic Valve and Mitral Valve Replacement
Trends in the use of bioprosthetic versus mechanical valves for AVR and MVR were assessed using a California-based surgical population from 1996-2013. During this period the use of bioprosthetic devices increased from 12% to 52% for AVR and from 17% to 54% for MVR. Bioprostheses were associated with substantially increased 15-year mortality in younger patients and had a higher rate of reoperation. Mechanical valves were associated with higher rates of bleeding and stroke.