The Benefits of Repair With the availability of reliable increasingly durable mechanical bioprostheses why pursue mitral repair? What is the justification for a procedure that might take longer, has a low but definite incidenc of eary failure, and requiesthe use of a collection of techniques to mold the valve to a successful correction? Valve replacement is simpler and across a population practitioners, more consistent reliable Mitral repair requires practice and experience to achieve consistently good results Nevertheless, repair over forty years of progressive refinements has become amenable to more standardized proven approach and proven to have comparable durability to replacement with a lower incidence of thromboembolism, infection. and hemorrhagic complications.