title: Reconstruction of right ventricular outflow tract with stentless xenografts in Ross procedure.
abstract: To investigate whether the use of a stentless porcine aortic xenograft can be an alternative for right ventricular outflow tract (RVOT) reconstruction during the Ross procedure, 9 patients underwent the Ross procedure and RVOT reconstruction with a stentless xenograft since January 2000. After the aortic valve was replaced with a pulmonary autograft, a stentless xenograft with a xeno- pericardial roll was implanted in the RVOT. One patient required subsequent aortic valve replacement because of severe regurgitation of the pulmonary autograft. All patients recovered well from the operation. The right ventricle-pulmonary arterial pressure gradient was 18 +/- 7 mm Hg at discharge and was not significantly increased during the 2-year follow-up period. Although 1 patient died of ventricular arrhythmia 5 months after, his cardiac function was normal, and transpulmonary valve pressure was 19 mm Hg in the follow-up. The other 7 patients are currently in New York Heart Association functional Class I. Although long-term follow-up is required to explain the durability, the stentless xenograft with a pericardial roll is considered to be an alternative for reconstruction of the RVOT within 2 years after the Ross procedure.
authors.affiliation: Department og Cardiovascular, Thoracic, and Pediatric Surgery, Kobe University, Graduate School of Medicine, Japan.
authors.forename: Takuro
authors.initials: T
authors.lastname: Tsukube
authors.forename: Yujiro
authors.initials: Y
authors.lastname: Kawanishi
authors.forename: Hirohisa
authors.initials: H
authors.lastname: Murakami
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Hino
authors.forename: Ritsu
authors.initials: R
authors.lastname: Matsukawa
authors.forename: Nobuchika
authors.initials: N
authors.lastname: Ozaki
authors.forename: Kenji
authors.initials: K
authors.lastname: Okada
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Matsuda
authors.forename: Noboru
authors.initials: N
authors.lastname: Wakita
authors.forename: Masami
authors.initials: M
authors.lastname: Nishiwaki
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Okita
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001021:Aortic Valve / Q000601:surgery*; D001705:Bioprosthesis; D006348:Cardiac Surgical Procedures / Q000379:methods; D005260:Female; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation; D006801:Humans; D008297:Male; D008875:Middle Aged; D011664:Pulmonary Valve / Q000601:surgery / Q000637:transplantation*