title: Unicuspid aortic valve mimicking quadricuspid valve.
abstract: Unicuspid aortic valve is a rare congenital cardiac abnormality, leading to aortic stenosis or regurgitation. We report the case of a 55-year-old man with severe aortic regurgitation caused by a unicuspid valve mimicking quadricuspid valve.
authors: Department of Cardiovascular Surgery, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan. toota-cvs@umin.ac.jp
authors: Takeyoshi
authors: T
authors: Ota
authors: Kenji
authors: K
authors: Okada
authors: Yoshihisa
authors: Y
authors: Morimoto
authors: Yutaka
authors: Y
authors: Okita
mesh_terms: D001021:Aortic Valve / Q000033:anatomy & histology*; D001022:Aortic Valve Insufficiency; D001024:Aortic Valve Stenosis / Q000175:diagnosis; D006330:Heart Defects, Congenital / Q000175:diagnosis*; D006349:Heart Valve Diseases / Q000175:diagnosis; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation; D006801:Humans; D008297:Male; D008875:Middle Aged; D016896:Treatment Outcome