title: Critical left ventricular outflow tract obstruction due to accessory mitral valve tissue.
abstract: Left ventricular outflow tract (LVOT) obstruction due to anomalous tissue tag arising from the mitral valve is a rare congenital cardiac anomaly. It generally becomes symptomatic during the first decade of life as exercise intolerance, chest pain, or syncope at effort. To date, only a few cases of critical systemic obstruction due to isolated mitral valve anomaly in neonates have been reported. We report the case of a neonate who was a few hours old and was referred in severe clinical condition due to critical left ventricular outflow obstruction resulting from an anomalous tissue tag of mitral valve origin.
authors.affiliation: Pediatric Cardiology, V. Monaldi Hospital, Via Vito Lembo, 14, 84131 Salerno, Italy.
authors.forename: R
authors.initials: R
authors.lastname: Calabrò
authors.forename: G
authors.initials: G
authors.lastname: Santoro
authors.forename: C
authors.initials: C
authors.lastname: Pisacane
authors.forename: B
authors.initials: B
authors.lastname: Sarubbi
authors.forename: G
authors.initials: G
authors.lastname: Farina
authors.forename: G
authors.initials: G
authors.lastname: Pacileo
authors.forename: G
authors.initials: G
authors.lastname: Caianiello
mesh_terms: D001783:Blood Flow Velocity; D003937:Diagnosis, Differential; D018618:Echocardiography, Doppler, Color; D006330:Heart Defects, Congenital / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008943:Mitral Valve / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery; D008944:Mitral Valve Insufficiency / Q000150:complications* / Q000151:congenital / Q000175:diagnosis / Q000601:surgery; D014694:Ventricular Outflow Obstruction / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology