• M Sauer, K Tiede, R Volland, D Fuchs, and F Zintl.
• Klinik für Kinder und Jugendmedizin Jussuf-Ibrahim, Friedrich-Schiller-Universität Jena.
• Klin Padiatr. 2000 Jan 1;212(1):10-5.

BackgroundPCT has recently drawn attention as a quite specific marker for bacterial, fungal, and parasitic origin of severe sepsis-syndrome. These specific properties could make PCT to an important tool for sepsis monitoring in severely immunocompromised children. The clinical value of PCT in comparison to CrP was investigated in children after bone marrow transplantation (BMT).MethodsPCT was measured in the serum of 48 children (median age 12.4 years) after BMT in a prospective study. Results were correlated with the clinical findings and compared to the C-reactive protein (CrP).ResultsPCT showed a sensitivity for diagnosing a sepsis-syndrome of 56%, a specificity of 87%, a positive predictive value of 69%, and a negative predictive value of 80%. Regarding CrP they were 100%, 41%, 46% and 100% respectively. The relative risk to die due to sepsis-syndrome was 26.4 for PCT levels over 10 ng/ml and 4.0 for CrP levels over 200 mg/l. It could be shown furthermore that there can be a significant liberation of PCT even during hematological aplasia.Conclusion(1) Measuring PCT levels in the sera of children undergoing BMT improves the possibility of diagnosing severe infection and gives an important prognostic tool. (2) Measuring PCT can be recommended if severe sepsis-syndrome is suspected and there is an additional need for differential diagnosis and prognostic evaluation.

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