title: Left ventricular outflow obstruction after mitral valve replacement preserving native anterior leaflet.
abstract: Left ventricular outflow obstruction may result from preserving the anterior leaflet after mitral valve replacement. A 79-year-old woman, who had a mitral valve replacement with the native mitral leaflets left intact 16 years before, was admitted to our hospital with severe dyspnea due to heart failure. Echocardiography showed systolic anterior motion of preserved anterior mitral leaflet, and continuous wave Doppler detected severe left ventricular outflow tract jets during systole without mitral chordal rupture. Surgical incising of the anterior mitral leaflet through the aortic root relieved the obstruction without removing the prosthetic mitral valve.
authors.affiliation: Department of Cardiovascular Surgery, Saiseikai Tochigiken Utsunomiya Hospital, Utsunomiya, Tochigi, Japan. kazuma@mail.com
authors.forename: Kazuma
authors.initials: K
authors.lastname: Okamoto
authors.forename: Issei
authors.initials: I
authors.lastname: Kiso
authors.forename: Yoshihito
authors.initials: Y
authors.lastname: Inoue
authors.forename: Hideki
authors.initials: H
authors.lastname: Matayoshi
authors.forename: Ryuichi
authors.initials: R
authors.lastname: Takahashi
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Umezu
mesh_terms: D000368:Aged; D005260:Female; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects*; D006801:Humans; D008943:Mitral Valve / Q000601:surgery*; D008944:Mitral Valve Insufficiency / Q000601:surgery; D013599:Systole; D014694:Ventricular Outflow Obstruction / Q000209:etiology*