RESUMO
Infective endocarditis is a rare but life-threatening condition, occasionally linked to diverse immunologic manifestations, including mixed cryoglobulinemia. This can lead to cryoglobulinemic vasculitis, which has the potential for widespread organ damage. Although some cases have highlighted the relationship between infective endocarditis and cryoglobulinemic vasculitis, no comprehensive epidemiological evaluation or optimal treatment strategies have been advanced for such a combination. We present a case of methicillin-sensitive Staphylococcus aureus infective endocarditis associated with cryoglobulinemic vasculitis and conduct a literature review to compare management and outcomes in similar cases. Our patient presented with classical Meltzer's triad and mild renal involvement. Cryoimmunofixation confirmed type III cryoglobulinemia, and serum cytokines showed elevated IL-6 levels. The differential diagnosis included infective endocarditis and chronic active hepatitis C virus infection. Rapid symptom resolution after antibiotic treatment identified infective endocarditis as the likely cause of cryoglobulinemic vasculitis. Our case and review of the literature highlight that early identification of the cause of cryoglobulinemic vasculitis is crucial for selecting appropriate treatment and preventing recurrence or morbidity.
Assuntos
Coinfecção , Crioglobulinemia , Endocardite Bacteriana , Hepatite C Crônica , Infecções Estafilocócicas , Staphylococcus aureus , Vasculite , Humanos , Crioglobulinemia/etiologia , Crioglobulinemia/complicações , Crioglobulinemia/diagnóstico , Infecções Estafilocócicas/complicações , Hepatite C Crônica/complicações , Vasculite/etiologia , Endocardite Bacteriana/complicações , Endocardite Bacteriana/diagnóstico , Endocardite Bacteriana/etiologia , Masculino , Pessoa de Meia-Idade , Hepacivirus , Antibacterianos/uso terapêuticoRESUMO
Lower respiratory tract infections are a frequent cause of excessive antibiotic prescription. The use of CRP and PCT has been evaluated by recent trials as a mean to assist antibiotic prescription. These studies suggest a safe reduction of antibiotic usage when prescription is guided by biomarkers. There is at the moment no evidence benefiting one of the biomarkers over the other, but a recent Swiss trial could suggest an added benefit for PCT. For now, PCT is less available, more expensive and not reimbursed. Democratization of its use, and/or clear thresholds for the use of CRP are additional ways that could participate to reduce excessive antibiotic prescription in primary care.
Les infections respiratoires basses sont une cause fréquente de prescription inappropriée d'antibiotiques en médecine de famille. L'utilisation de la CRP et de la procalcitonine (PCT) a été évaluée par plusieurs études comme moyen de guider la prescription d'antibiotiques. Ces études suggèrent une diminution sûre de la prescription lorsque l'utilisation est guidée par des biomarqueurs. Il n'y a pour l'instant pas d'évidence en faveur d'une supériorité d'un biomarqueur mais une étude suisse pourrait suggérer un effet additionnel de la PCT. Pour l'instant, elle est moins facilement accessible, plus chère et non remboursée. La démocratisation de son utilisation et/ou la définition de seuils clairs pour l'utilisation de la CRP pourraient aider à diminuer la prescription excessive d'antibiotiques en ambulatoire.