title: Mitral stenosis due to pannus overgrowth after rigid ring annuloplasty.
abstract: Although mitral stenosis (MS) due to pannus overgrowth after mitral valve repair for rheumatic mitral regurgitation (MR) is not uncommon, it is extremely rare in relation to non-rheumatic mitral regurgitation. Whilst it has been suggested that the rigid annuloplasty ring induces pannus overgrowth in the same manner as the flexible ring, to date only in cases using the flexible ring has pannus formation been confirmed by a pathological examination after redo surgery. The case is described of a woman who had undergone mitral valve repair using a 28 mm rigid ring three years previously because of non-rheumatic MR, and subsequently suffered from MS due to pannus formation over the annuloplasty ring. To the present authors' knowledge, this is the first report of MS due to pannus formation after mitral valve repair using a rigid annuloplasty ring to treat non-rheumatic MR documented at reoperation.
authors.affiliation: Department of Surgery, Kurume University School of Medicine, Kurume-shi, Fukuoka, Japan. oda@st-mary-med.or.jp
authors.forename: Takeshi
authors.initials: T
authors.lastname: Oda
authors.forename: Seiya
authors.initials: S
authors.lastname: Kato
authors.forename: Eiki
authors.initials: E
authors.lastname: Tayama
authors.forename: Shuji
authors.initials: S
authors.lastname: Fukunaga
authors.forename: Hidetoshi
authors.initials: H
authors.lastname: Akashi
authors.forename: Shigeaki
authors.initials: S
authors.lastname: Aoyagi
mesh_terms: D000368:Aged; D005260:Female; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008943:Mitral Valve / Q000473:pathology / Q000601:surgery*; D008944:Mitral Valve Insufficiency / Q000601:surgery; D008946:Mitral Valve Stenosis / Q000209:etiology*