title: Recurrent prosthetic valve thrombosis: importance of prolonged Doppler echocardiography examination for diagnosis.
abstract: In a 9-month period a 52-year-old woman was admitted on 3 occasions with thrombotic obstruction of a Medtronic Hall aortic valve prosthesis. On the first occasion the diagnosis was clinically obvious; on the second occasion prosthetic valve malfunction was detected fortuitously on Doppler echocardiography; on the third occasion the diagnosis was made after prolonged Doppler echocardiographic examination. The patient was treated with thrombolysis, surgical thrombectomy, and aortic valve re-replacement on the 3 occasions, respectively.
authors.affiliation: Department of Cardiology, Manchester Royal Infirmary, M13 9SB, UK. dyl.rittoo@mbc.cmht.nwest.nhs.uk
authors.forename: D
authors.initials: D
authors.lastname: Rittoo
authors.forename: H
authors.initials: H
authors.lastname: Buckley
authors.forename: L
authors.initials: L
authors.lastname: Cotter
mesh_terms: D001021:Aortic Valve / Q000601:surgery*; D015150:Echocardiography, Doppler; D005260:Female; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008875:Middle Aged; D011475:Prosthesis Failure; D012008:Recurrence; D013927:Thrombosis / Q000000981:diagnostic imaging / Q000209:etiology* / Q000628:therapy