No Association Between Protein C Levels and Bacteremia in Children With Febrile Neutropenia
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BACKGROUND: Little is known about protein C levels and outcomes of pediatric febrile neutropenia. The primary aim was to evaluate the relationship between markers of activated coagulation including protein C levels and bacteremia in pediatric oncology patients with febrile neutropenia. METHODS: In this prospective cohort study, we collected a blood specimen from pediatric oncology patients who were admitted to a tertiary care hospital between October 2, 2002 and February 3, 2006 with febrile neutropenia. Levels of protein C, soluble thrombomodulin, soluble endothelial protein C receptor, thrombin-antithrombin complex, fibrinogen degradation products and activated protein C were measured. Associations between markers of activated coagulation and bacteremia were examined using univariate logistic regression. RESULTS: Of the 73 evaluable patients, 10 had bacteremia. None of the above measured markers of activated coagulation were associated with bacteremia. More specifically, the median level of protein C in those with bacteremia was 0.64 U/mL (interquartile range: 0.58 to 0.72) in comparison with the median level in those without bacteremia of 0.73 U/mL (interquartile range: 0.61 to 0.92), odds ratio 0.18 (95% confidence interval 0.00 to 8.33); P=0.38. CONCLUSIONS: Protein C levels do not differ between pediatric febrile neutropenic patients with and without bacteremia.
