Survival and Long-term Outcomes Following Bioprosthetic vs Mechanical Aortic Valve Replacement in Patients Aged 50 to 69 Years

The New York State database was used to perform a retrospective analysis of outcomes for isolated AVR comparing bioprosthetic to mechanical valves.  Propensity matching was used to create 1001 patient pairs.  Survival  and stroke rates were similar between the groups at an average of 10.8 years follow-up.  The cumulative incidence of reoperation  was higher in the bioprosthetic group (12.1% vs 6.9%) but the cumulative incidence of major bleeding was lower in that group (6.6% vs 13.0%).