title: Saccular aneurysm of pulmonary autograft after the Ross procedure.
abstract: The Ross procedure, which includes removal of the malformed aortic valve and replacement of a pulmonary autograft in the aortic position, has increased the number of available treatment options. Recently, dilatation of the autograft pulmonary root after the Ross procedure has been reported as a complication. We report a patient with bicuspid aortic valve malformations and aortic annulus dilatation, who had a saccular-form, true-type, aneurysm in the pulmonary autograft seven months after the Ross procedure. These changes have not been described so far as complication. Pathologically, marked mucoid degeneration was noted in the tunica media of the aneurysm, as well as in the original aortic root. These findings may suggest similar pathological characteristics between the aorta and pulmonary arteries. Hence, the surgical risks accompanying vascular characteristics in patients with congenital aortic valve malformations should be considered.
authors.affiliation: Department of Cardiology, Sakakibara Heart Institute, Tokyo, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Harada
authors.forename: E
authors.initials: E
authors.lastname: Ohtaki
authors.forename: J
authors.initials: J
authors.lastname: Kitamura
authors.forename: R
authors.initials: R
authors.lastname: Asano
authors.forename: H
authors.initials: H
authors.lastname: Kasegawa
authors.forename: T
authors.initials: T
authors.lastname: Koyanagi
authors.forename: T
authors.initials: T
authors.lastname: Sumiyoshi
authors.forename: S
authors.initials: S
authors.lastname: Hosoda
mesh_terms: D000328:Adult; D001021:Aortic Valve / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery*; D001022:Aortic Valve Insufficiency / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D001027:Aortography; D004108:Dilatation, Pathologic / Q000175:diagnosis / Q000209:etiology / Q000601:surgery; D006801:Humans; D002532:Intracranial Aneurysm / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D008297:Male; D008943:Mitral Valve / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery*; D011183:Postoperative Complications; D011664:Pulmonary Valve / Q000000981:diagnostic imaging / Q000637:transplantation*; D014057:Tomography, X-Ray Computed; D014182:Transplantation, Autologous