Mechanical versus Biological Mitral Valve Replacement: Insights from Propensity Score Matching on Survival and Reoperation Rates

Patients with symptomatic mitral valve disease unsuitable for repair can be sufficiently treated with surgical mitral valve replacement (MVR). The decision between biological and mechanical MVR (bMVR/mMVR) can be difficult, especially due to the question of the lesser of two evils: anticoagulation versus reoperation.