title: Accessory mitral valve in an adult population: the role of echocardiography in diagnosis and management.
abstract: Accessory mitral valve is a rare congenital abnormality and is an unusual cause for subvalvular left ventricular outflow tract (LVOT) obstruction. It is detected first in children and is very rarely noticed in adults. The most common clinical presentation is symptomatic LVOT obstruction. We present a case series of 5 adult patients with varying clinical presentations in which the accessory mitral valve was diagnosed using echocardiography. Three patients presented with varying degrees of symptomatic LVOT obstruction, one presented with recurrent transient ischemic attack and stroke, and one patient was incidentally diagnosed during echocardiography to exclude endocarditis. Accessory mitral valve should be suggested in patients with LVOT obstruction.
authors.affiliation: Cardiovascular Division, Washington University School of Medicine, St Louis, MO 63110, USA. harit@im.wustl.edu
authors.forename: Aleksandr
authors.initials: A
authors.lastname: Rovner
authors.forename: Srihari
authors.initials: S
authors.lastname: Thanigaraj
authors.forename: Julio E
authors.initials: JE
authors.lastname: Perez
mesh_terms: D000328:Adult; D005260:Female; D006337:Heart Murmurs; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000002:abnormalities* / Q000000981:diagnostic imaging* / Q000601:surgery; D017202:Myocardial Ischemia / Q000209:etiology; D012008:Recurrence; D020521:Stroke / Q000209:etiology; D014463:Ultrasonography; D014694:Ventricular Outflow Obstruction / Q000175:diagnosis / Q000209:etiology*