A 22 year female comes with complains of dyspnea and palpitations since 4 years shows verrucous vegetations of mitral valve. The condition is due to?

Libman-Sacks endocarditis (often misspelled Libmann-Sachs) is a form of nonbacterial endocarditis that is seen in association with systemic lupus erythematosus. It is one of the most common hea-related manifestations of lupus (the most common being pericarditis . Ref Davidson 23rd edition pg 453