World-renowned transcatheter valve-in-valve expert Dr. Vinnie Bapat joined the Marcus Heart Valve Center team to help with a unique valve-in-valve case to treat mitral annular calcification (MAC). After performing the successful procedure – the first valve-in-MAC with the Lotus Valve in the U.S. – he sat down with Piedmont cardiac surgeon Dr. Jim Kauten and cardiologist Dr. Randy Martin to discuss innovations in the field of transcatheter valve therapy.