title: Congenital quadricuspid aortic valve associated with severe regurgitation.
abstract: A 56-year-old man was referred because of severe aortic regurgitation. He had a quadricuspid aortic valve with a small accessory cusp between the right coronary and noncoronary cusps. The ostium of the right coronary artery was deviated toward the accessory cusp commissure. Aortic valve replacement was performed with a bioprosthesis. The resected cusps showed fibrotic thickening with calcification and fenestration.
authors.affiliation: Division of Cardiovascular, Thoracic, and Pediatric Surgery, Kobe University Graduate School of Medicine, Kobe City, Japan. yujirokawanishi@hotmail.com
authors.forename: Yujiro
authors.initials: Y
authors.lastname: Kawanishi
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Tanaka
authors.forename: Keitaro
authors.initials: K
authors.lastname: Nakagiri
authors.forename: Teruo
authors.initials: T
authors.lastname: Yamashita
authors.forename: Kenji
authors.initials: K
authors.lastname: Okada
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Okita
mesh_terms: D001021:Aortic Valve / Q000002:abnormalities* / Q000601:surgery; D001022:Aortic Valve Insufficiency / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D001705:Bioprosthesis; D017548:Echocardiography, Transesophageal; D006330:Heart Defects, Congenital / Q000150:complications* / Q000473:pathology / Q000601:surgery; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000295:instrumentation; D006801:Humans; D008297:Male; D008875:Middle Aged; D012720:Severity of Illness Index; D016896:Treatment Outcome