title: Longest follow-up of in situ working Bjork Shiley valve: 42-year follow-up.
abstract: The Bjork Shiley valve (BSV) is considered as the pioneer among modern disc valves, and eventually evolved into a reliable prosthesis after considerable research and multiple modifications. Various case reports have been published with follow-up of different types of BSV. We are reporting the longest follow-up ever published of a plano-convex type of BSV. Our patient's valve was implanted in 1973 due to a congenital bicuspid aortic valve with concomitant severe, symptomatic aortic stenosis, discovered at the age of 27. She presented with exertional dyspnoea, syncope and chest pain; however, her cardiovascular status remained stable and these symptoms abated after successful valve replacement at the age of 34. She is now 77 years old with no limitations in her activities and is able to walk a few miles most days of the week. Her echocardiograms throughout the decades have shown acceptable gradients across the aortic prosthesis without evidence of haemolysis. Our case report includes a summary of the patient with a discussion of the evidence that supports the durability of the original plano-convex BSV.
authors.affiliation: St Paul Hospital, Providence Health Care, Vancouver, BC, Canada adilsoofi@hotmail.com.
authors.forename: Muhammad A
authors.initials: MA
authors.lastname: Soofi
authors.affiliation: SUNY Upstate Medical University, New York, NY, USA.
authors.forename: Maya T
authors.initials: MT
authors.lastname: Ignaszewski
authors.affiliation: Penticton Regional Hospital, Penticton, BC, Canada.
authors.forename: Thomas H
authors.initials: TH
authors.lastname: Ashton
authors.affiliation: St Paul Hospital, Providence Health Care, Vancouver, BC, Canada.
authors.forename: Robert T
authors.initials: RT
authors.lastname: Miyagishima
mesh_terms: D000368:Aged; D001021:Aortic Valve / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D001024:Aortic Valve Stenosis / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology / Q000601:surgery*; D000082882:Bicuspid Aortic Valve Disease; D018618:Echocardiography, Doppler, Color; D005260:Female; D006349:Heart Valve Diseases / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000295:instrumentation*; D006801:Humans; D011474:Prosthesis Design; D016896:Treatment Outcome
keywords: Aortic stenosis; Bicuspid aortic valve; Bjork Shiley valve