title: Fatal obstruction of the left ventricular outflow tract caused by low-profile bioprostheses in the mitral valve position.
abstract: Two cases of fatal left ventricular outflow tract obstruction following mitral valve replacement with low-profile bioprostheses are described. This unfortunate experience shows that correct orientation of the prosthesis is mandatory also when using low-profile bioprosthetic valves to avoid this complication, particularly in patients with a small left ventricular cavity.
authors.affiliation: Department of Cardiovascular Surgery, University of Padova Medical School, Italy.
authors.forename: U
authors.initials: U
authors.lastname: Bortolotti
authors.forename: A
authors.initials: A
authors.lastname: Milano
authors.forename: V
authors.initials: V
authors.lastname: Tursi
authors.forename: M
authors.initials: M
authors.lastname: Minarini
authors.forename: G
authors.initials: G
authors.lastname: Thiene
authors.forename: A
authors.initials: A
authors.lastname: Mazzucco
mesh_terms: D000368:Aged; D001705:Bioprosthesis / Q000009:adverse effects*; D017809:Fatal Outcome; D005260:Female; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008875:Middle Aged; D008943:Mitral Valve / Q000601:surgery*; D014694:Ventricular Outflow Obstruction / Q000209:etiology*