Valve in Valve Mitral app provides information specific for a clinical scenario, quickly and simply. This will help in the planning of and performing a mitral Valve in Valve or Valve in Ring case. The application navigates the user through important aspects of surgical mitral valves, mitral rings and TAVR valve design, which are vital for a successful Valve in Valve or ring procedure. The app logically steps through the possible combinations to give the user specific information needed to perform the procedure.