Long-Term Outcomes of Isolated Mechanical vs. Bioprosthetic Mitral Valve Replacement in Different Age Groups of Propensity-Matched Patients

In this paper, the authors completed a propensity matched retrospective observational study to compare long-term outcomes of isolated mechanical versus bioprosthetic mitral valves in different age groups. After propensity matching, analysis was completed in two age groups: < 65 and 65–75 years. Ten-year survival and freedom from reintervention were superior in those less than 65 years and receiving mechanical valves. In patients aged between 65–75, there was no difference in survival or freedom from reintervention between valve prosthesis.