Ferrera, CarlosAlmería, CarlosMaroto Castellanos, Luis CarlosCobiella, JavierDe Agustín Loeches, José AlbertoRodrigo López, José LuisIslas, FabiánMarcos-Alberca, PedroRodríguez, José EnriquePérez De Isla, LeopoldoMacaya Miguel, Carlos2026-02-022026-02-022014Ferrera, C., Almería, C., Maroto, L., Cobiella, J., de Agustín, J. A., Rodrigo, J. L., Islas, F., Marcos-Alberca, P., Rodríguez, J. E., Pérez de Isla, L., & Macaya, C. (2014). Mitral valve in valve: a new choice to be still cautious. International journal of cardiology, 171(2), 304–307. https://doi.org/10.1016/j.ijcard.2013.11.0701874-175410.1016/J.IJCARD.2013.11.070https://hdl.handle.net/20.500.14352/131366As the aging population grows, there is a parallel increase of degenerative valvulopathies. In the same way, bioprosthesis implanted years ago may undergo a gradual deterioration over time. Increased risk of reoperation is well known, but today it is the unique option for degenerated bioprosthesis. This situation leads to a crossover of two main issues: on the one side, an increase in aged-patient proportion, and on the other side, the higher risk from reoperation.engletter to the editorhttps://doi.org/10.1016/J.IJCARD.2013.11.07024342398https://www.sciencedirect.com/journal/international-journal-of-cardiologyrestricted access616.12Minimally invasive surgery; Mitral bioprosthesis; Transapical valve implantation; Valve in valve.Cardiología3205.01 Cardiología