title: Streptococcus constellatus community acquired pneumonia with subsequent isolated pulmonic valve endocarditis and abscess formation in a structurally normal heart.
abstract: Pulmonic valve infective endocarditis in isolation is a rare clinical entity. The formation of an abscess in the right ventricular outflow tract as a consequence of vegetations affecting the pulmonic valve in a structurally normal heart is extremely rare and has not been reported. We report a case of isolated pulmonic valve endocarditis complicated by a regional abscess formed within the right ventricular outflow tract caused by Streptococcus Constellatus (S. Constellatus), a member of the Streptococcus Milleri group in a young male whose risk factor was alcohol abuse and he was treated medically, a comprehensive literature review on the subject is also reported. Our case is the first reported in literature with infective endocarditis caused by S. Constellatus affecting the pulmonic valve, and the first with pulmonic valve endocarditis and perivalvular abscess formation in a structurally normal heart.
authors.affiliation: Department of Cardiac Sciences, Libin Cardiovascular Institute, Foothills Medical Center, University of Calgary, Calgary, Alberta, Canada.
authors.forename: Tarek Ali
authors.initials: TA
authors.lastname: Elhussein
authors.affiliation: Department of Cardiac Sciences, Libin Cardiovascular Institute, Foothills Medical Center, University of Calgary, Calgary, Alberta, Canada.
authors.forename: Stuart James
authors.initials: SJ
authors.lastname: Hutchison
keywords: Echocardiogram; Infective endocarditis; Pulmonary valve; Streptococcus