title: [Intermittent dysfunction of a Björk-Shiley tricuspid prosthesis caused by thrombosis suspected through pulmonary scintigraphy].
abstract: Thrombosis of a Björk-Shiley tricuspid valve prosthesis was observed 4 years after its implantation. The resulting dysfunction was intermittent blocking the disc in the closed position leading to recurrent near-syncopal malaises probably due to a temporary fall in cardiac output and cerebral blood flow and a right to left interatrial shunt which was detected at pulmonary scintigraphy performed to exclude pulmonary embolism. The Björk-Shiley prosthesis was replaced with a Carpentier-Edwards n. 29 prosthesis with a good result after a follow-up of one year.
mesh_terms: D000328:Adult; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D011475:Prosthesis Failure; D011877:Radionuclide Imaging; D013927:Thrombosis / Q000000981:diagnostic imaging* / Q000209:etiology; D014261:Tricuspid Valve / Q000601:surgery
vernacular_title: Dysfonctionnement intermittent par thrombose d'une prothèse tricuspidienne de Björk-Shiley suspecté par la scintigraphie pulmonaire.