title: Aortic root replacement in a patient with bicuspid pulmonary valve late after arterial switch operation.
abstract: Mild to moderate neoaortic root dilatation late after arterial switch operation (ASO) is a well-documented morbidity, but rarely needs surgical replacement. Here, we report on a 22-year-old man, who developed marked dilatation of neoaortic root and needed an aortic root replacement with mechanical conduit. His aortic valve was bicuspid. Only three cases have been reported for surgical replacement of aortic root after ASO, and two of them had bicuspid neoaortic valves. We suspect that a bicuspid neoaortic valve may be a risk factor for marked dilatation of the aortic root late after ASO.
authors.affiliation: Division of Cardiothoracic, Transplantation, and Vascular Surgery, Hannover Medical School, Hannover, Germany.
authors.forename: Dmitry
authors.initials: D
authors.lastname: Bobylev
authors.forename: Thomas
authors.initials: T
authors.lastname: Breymann
authors.forename: Dietmar
authors.initials: D
authors.lastname: Boethig
authors.forename: Masamichi
authors.initials: M
authors.lastname: Ono
mesh_terms: D000015:Abnormalities, Multiple; D001014:Aortic Aneurysm / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D001021:Aortic Valve / Q000002:abnormalities* / Q000601:surgery; D000082882:Bicuspid Aortic Valve Disease; D019917:Blood Vessel Prosthesis Implantation; D006348:Cardiac Surgical Procedures / Q000009:adverse effects*; D004108:Dilatation, Pathologic; D006349:Heart Valve Diseases / Q000175:diagnosis / Q000601:surgery*; D019918:Heart Valve Prosthesis Implantation; D006801:Humans; D008297:Male; D011664:Pulmonary Valve / Q000002:abnormalities*; D012086:Reoperation; D012307:Risk Factors; D014057:Tomography, X-Ray Computed; D014188:Transposition of Great Vessels / Q000175:diagnosis / Q000601:surgery*; D016896:Treatment Outcome; D055815:Young Adult