Isolated Streptococcus agalactiae tricuspid endocarditis in elderly patient without known predisposing factors: Case report and review of the literature

Group b streptococcal (gbs) tricuspid infective endocarditis is a very rare clinical entity. it affects intravenous drug users,pregnant,postpartum women,and the elderly. we report the case of a 68-year-old patient without known predisposing factors who presented a gbs tricuspid endocarditis treated by penicillin and aminoglycosides with no response. the patient was operated with a good evolution. our case is the 25th reported in the literature. gbs disease is increasing in the elderly and is mainly associated to comorbid conditions. tricuspid infective endocarditis with group b streptococcus predominantly presents as a persistent fever with respiratory symptoms due to pulmonary embolism. therefore,it requires a medicosurgical treatment and close follow-up. © 2015 the authors.