Severe infective endocarditis due to Neisseria sicca: case report and review of literature.

We report a case of infective endocarditis (IE) caused by an unusual micro-organism in a previously healthy young man. Our patient presented with meningo-encephalitis and embolic signs due to IE caused by Neisseria sicca. Risk factors for IE due to Neisseria sicca, such as intravenous drug use and pre-existing heart disease were absent. The patient recovered well after mitral valve surgery and antimicrobial therapy. IE due to Neisseria spp. is associated with embolic manifestations and valve destruction. However, no deaths have been reported in patients who are treated with appropriate antimicrobial and surgical therapy.