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- W2060984696 abstract "Une femme de 51 ans vivant en Algérie a développé une endocardite à Coxiella burnetii sur bioprothèse de valve mitrale. Elle présentait depuis quelques mois une dyspnée d'effort, de la fièvre, et une hépatomégalie avec apparition progressive d'un tableau d'insuffisance cardiaque. L'aggravation de l'état hémodynamique a conduit au remplacement de la valve mitrale prothétique. Les hémocultures sont revenues négatives et le diagnostic de fièvre Q a été établi de façon inattendue grâce à la sérologie systématique de Coxiella burnetii, qui montrait des titres élevés en anticorps d'isotypes IgG et IgA dirigés contre les antigènes de phases I et II de Coxiella burnetii. La patiente fut ensuite traitée par doxycycline et ofloxacine. Une prothèse valvulaire constitue un facteur de risque pour le développement d'une endocardite au cours de la fièvre Q. Cette observation souligne la nécessité de rechercher une infection par Coxiella burnetii en cas de dysfonctionnement d'une valve prothétique, en particulier lorsque les hémocultures sont négatives. A 51-year-old woman, originating from Algeria, developped Q fever endocarditis on porcine bioprosthetic mitral valve. She had chronic course with nonspecific symptoms, such as dyspnea and fever, hepatosplenomegaly, and developed progressive cardiac failure. Worsening of hemodynamic state led to prosthetic valve replacement. Hemocultures were all negative, and the diagnosis of Q fever was unexpectedly performed by systematic screening for specific serum antibody to Coxiella burnetii. High phase I and II specific IgG and IgA antibody titers against C burnetii were found. The patient was treated by doxycycline and ofloxacin, and improved rapidly. Prosthetic valve constitutes likely predisposing factor for the development of chronic Q fever endocarditis. This observation emphasizes the need to search for Q fever in prosthetic valve dysfunction, in particular when hemocultures are negative." @default.
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- W2060984696 title "Endocardite à coxiella burnetii sur bioprothèse valvulaire: revue de la littérature à propos d'un cas" @default.
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- W2060984696 doi "https://doi.org/10.1016/s0248-8663(05)81143-9" @default.
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