BioprosthesisHeart Valve ProsthesisAortic ValveHeart Valve Prosthesis ImplantationHeart Valve DiseasesProsthesis DesignAortic Valve StenosisProsthesis FailureAortic Valve InsufficiencyMitral ValveProsthesis FittingGlutaralPericardiumMaterials TestingHemodynamicsReoperationCardiac CatheterizationEchocardiography, DopplerSwineCalcinosisTreatment OutcomeStentsEquipment DesignTime FactorsFollow-Up StudiesRetrospective Studies