Abiotrophia endocarditis: a case report and review of literature.

Nutritionally Variant Streptococci (NVS) were first grouped under viridans streptococci, although they differed from the latter by variant growth characteristics. NVS cause approximately 5% of cases of bacterial endocarditis. Infective endocarditis caused by NVS has a higher rate of complications than endocarditis caused by other viridans streptococci. Recently NVS were separated from other viridans streptococci to form a new genus Abiotrophia. Since then, only four case reports have described the clinical course of Abiotrophia endocarditis. Therefore, current knowledge on this disease derives from previous data on NVS endocarditis. We present the case of Abiotrophia endocarditis, followed by discussion of relevant literature.