Libman-Sacks Endocarditis, also known as libmann-sachs, endocarditis in systemic lupus erythematosus, is related to endocarditis and mitral valve insufficiency. An important gene associated with Libman-Sacks Endocarditis is APOH (Apolipoprotein H), and among its related pathways/superpathways are Diseases of hemostasis and Complement cascade. Affiliated tissues include heart and lung.