title: Jellyfish-Like Accessory Mitral Valve Tissue Causing Near-Collapse in a Young Child.
abstract: Accessory mitral valve tissue (AMVT) causing left ventricular outflow tract obstruction (LVOTO) is rare. We report a case of AMVT causing severe LVOTO resulting in acutely progressive symptoms of near-collapse. Urgent surgical resection eliminated the patient's life-threatening symptoms. AMVT should be considered among potential LVOTO diagnoses, and early surgical intervention may be required.
authors.affiliation: 1 Division of Cardiovascular and Thoracic Surgery, BC Children's Hospital, Vancouver, British Columbia, Canada.
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Kato
authors.affiliation: 2 Division of Cardiology, BC Children's Hospital, Vancouver, British Columbia, Canada.
authors.forename: Carolina
authors.initials: C
authors.lastname: Escudero
authors.affiliation: 2 Division of Cardiology, BC Children's Hospital, Vancouver, British Columbia, Canada.
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Sherwin
authors.affiliation: 2 Division of Cardiology, BC Children's Hospital, Vancouver, British Columbia, Canada.
authors.forename: Martin
authors.initials: M
authors.lastname: Hosking
authors.affiliation: 1 Division of Cardiovascular and Thoracic Surgery, BC Children's Hospital, Vancouver, British Columbia, Canada.
authors.forename: Sanjiv K
authors.initials: SK
authors.lastname: Gandhi
mesh_terms: D006330:Heart Defects, Congenital / Q000150:complications / Q000175:diagnosis*; D006349:Heart Valve Diseases / Q000150:complications / Q000151:congenital / Q000175:diagnosis*; D006801:Humans; D007223:Infant; D008297:Male; D008943:Mitral Valve / Q000002:abnormalities*; D014694:Ventricular Outflow Obstruction / Q000175:diagnosis / Q000209:etiology*
keywords: accessory mitral valve tissue; congenital heart disease; left ventricular outflow tract obstruction; mitral valve repair