title: [A case of quadricuspid aortic valve with aortic regurgitation].
abstract: A 67-year-old man with grade 3 aortic valve regurgitation was found to have a quadricuspid aortic valve. The aortic valve consisted of 1 large, 2 intermediate and 1 small sized cusp. An accessory cusp located between the right and noncoronary cusps, and shaped like a hammock which sling by the fibrous strings originating from the both commissures to the aortic wall. Aortic valve replacement was successfully performed with a 23 mm St. Jude Medical prosthetic valve, and the patient is asymptomatic five months post-operatively. Histological examination of the resected cusps showed fibrous thickening and no rheumatic valvulitis or infective endocarditis.
authors.affiliation: Department of Cardiovascular Surgery, Hachinohe Municipal Hospital.
authors.forename: S
authors.initials: S
authors.lastname: Koizumi
authors.forename: S
authors.initials: S
authors.lastname: Arai
authors.forename: T
authors.initials: T
authors.lastname: Kato
mesh_terms: D000368:Aged; D001021:Aortic Valve / Q000002:abnormalities* / Q000601:surgery; D001022:Aortic Valve Insufficiency / Q000209:etiology / Q000601:surgery*; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male