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Fraunberger, Peter; Holler, Ernst; Parhofer, Klaus G.; Walli, Autar K.; Seidel, Dietrich (2008): Haben die Konzentrationen von Interleukin 6, Procalcitonin und CRP bei Intensivpatienten während des ersten Fieberanstieges eine prognostische Bedeutung? In: Laboratoriumsmedizin - Journal of Laboratory Medicine, Vol. 32, Nr. 6: S. 434-437
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Abstract

Serum levels of interleukin 6 (IL-6), procalcitonin (PCT), and C-reactive protein (CRP) were measured in 38 critically ill patients immediately after an increase in body temperature above 38.3 degrees C. Ten healthy controls were also included for comparison. The onset of fever was accompanied by elevated circulating levels of all the 3 markers in comparison to healthy control subjects. However, only IL-6 levels were significantly higher (p<0.05) in nonsurvivors compared with survivors. Sensitivity, specificity, positive, and negative predictive values for survival were higher for IL-6 in comparison to levels of PCT and CRP. Areas under receiver characteristic operating curves revealed the highest area under the curve for IL-6 compared to PCT and CRP. These data suggest that IL-6 rather than PCT or CRP may be an early predictor of prognosis and mortality in patients with the onset of fever.