title: Mitral valve stenosis caused by abnormal pannus extension over the prosthetic ring and leaflets after Duran ring mitral annuloplasty.
abstract: We treated a 61-year-old woman with mitral stenosis caused by pannus formation after Duran ring annuloplasty. Pannus overgrowth on the ring with extension onto both leaflets narrowed the mitral orifice and severely restricted the mobility of the valve leaflets. Mitral valve replacement with a St. Jude Medical mechanical heart valve prosthesis was successfully performed, and the postoperative course was uneventful. Patients undergoing Duran ring annuloplasty should be followed up with the consideration of possible mitral stenosis caused by pannus extension, as the cause for pannus formation remains unclear.
authors.affiliation: Department of Thoracic and Cardiovascular Surgery, Fukuoka Tokushukai Hospital, Fukuoka, Japan. zunzy0120@hotmail.com
authors.forename: Junji
authors.initials: J
authors.lastname: Yunoki
authors.forename: Naoki
authors.initials: N
authors.lastname: Minato
authors.forename: Yuji
authors.initials: Y
authors.lastname: Katayama
authors.forename: Hisashi
authors.initials: H
authors.lastname: Sato
mesh_terms: D005260:Female; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects*; D006801:Humans; D008875:Middle Aged; D008943:Mitral Valve / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D008946:Mitral Valve Stenosis / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D014463:Ultrasonography