Do Complex Pathologies Remain a Challenge in Minimally Invasive Mitral Valve Surgery?

Minimally invasive mitral valve repair (MI-MVr) is the preferred treatment approach in experienced centers for mitral valve disease (MVD), offering reduced surgical trauma and fast recovery. However, limited operative exposure and increased procedural complexity can represent a challenge in complex MVD. This narrative review provides an overview of current literature on clinical outcomes of MI-MVr in challenging MVD scenarios, such as mitral valve (MV) endocarditis, annulus calcification, and mitral annular disjunction, in the context of myxomatous MVD. Despite the complex anatomy and MVD, MI-MVr is non-inferior in long-term outcomes in treating MV endocarditis, MV calcification, and myxomatous MVD with mitral annular disjunction. Nonetheless, careful patient selection and referral to high-volume centers, where surgeons with expertise in MI-MVr operate, are key elements for achieving a durable, patient-tailored repair with an optimal long-term outcome in treating complex MVD.