title: A misinterpreted case of aorta prosthesis endocarditis: remember the phenomenon of microbubbles.
abstract: A 17-year-old male with a history of newly implanted mechanical valve at the aortic position, presented with fever, rigors, and painful cutaneous abscesses on his lower extremities and was suspected for infective endocarditis. Transthoracic echocardiography (TTE) showed a vegetation-like structure following the movement of the mechanical heart valve (MHV), which eventually proved to be a product of degassing microbubbles (MB).
authors.affiliation: Department of Cardiology, Copenhagen University Hospital Roskilde, Roskilde, Denmark. cjl@dadlnet.dk
authors.forename: Christian Johann
authors.initials: CJ
authors.lastname: Lerche
authors.forename: Ketil Jørgen
authors.initials: KJ
authors.lastname: Haugan
authors.forename: Jesper Irving
authors.initials: JI
authors.lastname: Reimers
authors.forename: Nikolaj
authors.initials: N
authors.lastname: Ihlemann
mesh_terms: D000293:Adolescent; D001021:Aortic Valve / Q000000981:diagnostic imaging* / Q000601:surgery*; D016477:Artifacts; D003287:Contrast Media; D003937:Diagnosis, Differential; D003951:Diagnostic Errors / Q000517:prevention & control*; D004696:Endocarditis / Q000000981:diagnostic imaging*; D005189:False Positive Reactions; D006350:Heart Valve Prosthesis / Q000009:adverse effects; D006801:Humans; D008297:Male; D010743:Phospholipids; D016459:Prosthesis-Related Infections / Q000000981:diagnostic imaging / Q000209:etiology; D013203:Staphylococcal Infections / Q000000981:diagnostic imaging*; D013459:Sulfur Hexafluoride; D014463:Ultrasonography
chemical_list: D003287:Contrast Media; D010743:Phospholipids; C420843:contrast agent BR1; D013459:Sulfur Hexafluoride
keywords: cavitation; degassing; endocarditis; mechanical heart valve; microbubbles