Acute Q fever with hemophagocytic syndrome: case report and literature review.
ABSTRACT Hemophagocytic syndrome is a rare complication of acute Q fever. We reported the case of 26-year-old man with fever, chills, severe headache, non-productive cough and progressive thrombocytopenia. Bone marrow aspirate revealed hemophagocytosis. We discussed the differences among the three previous reported cases and the possible mechanisms of hemophagocytic syndrome.
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ABSTRACT: BACKGROUND: Hemophagocytosis during Q fever (QF) and Mediterranean spotted fever (MSF) is rare and only a few cases have been reported. We aimed to investigate the characteristics, outcome, and treatment of QF/MSF-associated hemophagocytosis. METHODS: We retrospectively reviewed all patients with a diagnosis of QF or MSF and suspected hemophagocytic syndrome (HS), according to Henter's criteria, between 2002 and 2011, and compared the latter to patients without HS or with lymphoma-associated HS. RESULTS: Seventeen patients with HS (median age 42 years, range 5-68 years; five females (29%)) with QF (n=8) and MSF (n=9) were included in this study. When comparing patients with QF- and MSF-associated HS with patients without HS (n=11), HS-associated signs (splenomegaly, ferritinemia, hypertriglyceridemia, and cytopenia) were significantly more frequent in patients with histological HS (p<0.05), along with a greater number of Henter's criteria. Despite the presence of HS-associated signs, treatment was similar in these two subgroups, including the time to recovery and the outcome. When compared to lymphoma-associated HS (n=10), the outcome in QF/MSF-associated HS was significantly different, with mortality in 70% of lymphoma patients versus none in QF- and MSF-associated HS (p<0.05). CONCLUSION: Hemophagocytosis is a rare occurrence during the course of QF and MSF. The presence of profound cytopenia is quite unusual in QF and MSF and should bring to mind the presence of associated HS. Nevertheless, hemophagocytic syndrome is associated with a good outcome in this condition.International journal of infectious diseases: IJID: official publication of the International Society for Infectious Diseases 02/2013; · 2.17 Impact Factor
- Enfermedades Infecciosas y Microbiología Clínica 11/2008; 26(9):597-598. · 1.88 Impact Factor
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ABSTRACT: Background The northern fur seal (Callorhinus ursinus) is an important cultural and nutritional resource for the Aleut community on St. Paul Island Alaska. In recent years, an increasing number of zoonotic pathogens have been identified in the population, but the public health significance of these findings is unknown. To determine the prevalence of Coxiella burnetii and Brucella spp. in northern fur seal tissues, eight tissue types from 50 subsistence-harvested fur seals were tested for bacterial DNA by real-time polymerase chain reaction.FindingsOf the 400 samples tested, only a single splenic sample was positive for Brucella spp. and the cycle threshold (ct) value was extremely high suggesting a low concentration of DNA within the tissue. C. burnetii DNA was not detected.Conclusions Findings suggest that the risk of humans contracting brucellosis or Q fever from the consumption of harvested northern fur seals is low.Acta Veterinaria Scandinavica 10/2014; 56(1):67. · 1.00 Impact Factor