The surgical repair of duplication of the mitral orifice.
D002648:Child; D002675:Child, Preschool; D002815:Chordae Tendineae / Q000601:surgery*; D006330:Heart Defects, Congenital / Q000601:surgery*; D006801:Humans; D008297:Male; D008943:Mitral Valve / Q000002:abnormalities* / Q000601:surgery*