title: Dehiscence of the Freestyle stentless bioprosthesis.
abstract: This study aimed to identify and characterize patients who developed prosthetic dehiscence after aortic valve replacement with the Freestyle Stentless bioprosthesis. Review of patients' records and preoperative echocardiogram was performed. Prosthetic dehiscence developed in 10 patients after 2.5 to 49 months (mean 19). Most patients were symptomatic at presentation. Nine patients were reoperated. Dehiscence was typically located at the inflow suture line beneath the noncoronary cusp. Four patients died. The cause of dehiscence is assumed to be related primarily to surgical technique.
authors.affiliation: Department of Cardiothoracic Surgery, Leiden University Medical Centre, The Netherlands.
authors.forename: P H
authors.initials: PH
authors.lastname: Schoof
authors.forename: L H
authors.initials: LH
authors.lastname: Baur
authors.forename: A P
authors.initials: AP
authors.lastname: Kappetein
authors.forename: M G
authors.initials: MG
authors.lastname: Hazekamp
authors.forename: G L
authors.initials: GL
authors.lastname: van Rijk-Zwikker
authors.forename: H A
authors.initials: HA
authors.lastname: Huysmans
mesh_terms: D000368:Aged; D001021:Aortic Valve; D001705:Bioprosthesis; D006350:Heart Valve Prosthesis; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012189:Retrospective Studies; D013529:Surgical Wound Dehiscence / Q000453:epidemiology*; D013997:Time Factors