title: Hancock valve deterioration in tricuspid position for Ebstein's anomaly.
abstract: A 65-year-old woman with a Hancock valve implanted 25 years earlier for Ebstein's anomaly underwent a successful second tricuspid valve replacement with a Mosaic valve because of significant tricuspid regurgitation. At surgery, it was found that the Hancock valve had a cylinder-shaped hole and had lost its entire structure. Tricuspid valve dysfunction may be tolerated for a long time before surgery is contemplated.
authors.affiliation: Chiba Cardiovascular Center, 575 Tsurumai, Ichihara, Chiba 290-0512, Japan. ksughimoto@yahoo.co.jp
authors.forename: Koichi
authors.initials: K
authors.lastname: Sughimoto
authors.forename: Kiyoharu
authors.initials: K
authors.lastname: Nakano
authors.forename: Akihiko
authors.initials: A
authors.lastname: Gomi
authors.forename: Hayao
authors.initials: H
authors.lastname: Nakatani
authors.forename: Yoshitsugu
authors.initials: Y
authors.lastname: Nakamura
authors.forename: Atsuhiko
authors.initials: A
authors.lastname: Sato
mesh_terms: D000368:Aged; D001705:Bioprosthesis; D020878:Device Removal; D004437:Ebstein Anomaly / Q000473:pathology / Q000601:surgery*; D005260:Female; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects / Q000295:instrumentation*; D006801:Humans; D018579:Patient Selection; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012086:Reoperation; D016896:Treatment Outcome; D014261:Tricuspid Valve / Q000002:abnormalities / Q000473:pathology / Q000601:surgery*; D014262:Tricuspid Valve Insufficiency / Q000209:etiology* / Q000473:pathology / Q000601:surgery