... requiring surgery. In this study we report two cases of mitral valve repair and two cases of mitral valve replacement for mitral regurgitation (MR) caused by Libman-Sacks endocarditis. In addition, ... erythematosus.Lancet 1990, 335:1541-4.16. Takayama T, Teramura M, Sakai H, Tamaki S, Okabayashi T, Kawashima T,Yamamoto T, Horie M, Suzuki T, Asai T: Perforated mitral valve aneurysmassociated ... persists mitral valve surgery may be required. Valve repair versus replacement and valve selectionIn contemporary cardiac surgery mitral valve repair hasbecome the mainstay of surgical treatment for...