title: Transient dysfunction of the freestyle stentless xenograft.
abstract: After replacement of a bicuspid aortic valve with a Freestyle stentless xenograft, right coronary leaflet dysfunction and an elevated pressure gradient developed. Attempts to match the right and left ostia of the prosthesis, which were located at an angle of less than 120 degrees, to the native right and left ostia, which were located at 180 degrees, may have resulted in the leaflet distension. This is a suggestive finding about its implantation technique.
authors.affiliation: First Department of Surgery, School of Medicine, Kumamoto University, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Uemura
authors.forename: J
authors.initials: J
authors.lastname: Utoh
authors.forename: M
authors.initials: M
authors.lastname: Hara
authors.forename: Y
authors.initials: Y
authors.lastname: Ikuta
authors.forename: N
authors.initials: N
authors.lastname: Kitamura
mesh_terms: D001021:Aortic Valve / Q000002:abnormalities / Q000601:surgery*; D001705:Bioprosthesis; D005260:Female; D019918:Heart Valve Prosthesis Implantation; D006801:Humans; D008875:Middle Aged; D011474:Prosthesis Design; D011475:Prosthesis Failure; D015607:Stents