Hello, my husband had a mitral valve and tricuspid valve replaced last September at the Mayo Clinic in Rochester. As explained to us, the tricuspid valve is the "last frontier" in valve replacement but as medical advancements have come along there has been lots of progress in the replace or repair of this valve. The doctor who preformed the surgery was Malakh L. Shrestha. If you drill down into his background and Mayo videos with him you will find a lot of information. My husband learned from the Mayo videos and doctor interviews and those from the Cleveland Clinic. The heart surgery was a success for my husband but he suffered severe complication after sugery which resulted in a long hospitalization and continued medical help. But, his heart is in better shape then it had been in years! Good luck!