• Int J Med Sci · Jan 2022

    Blood biomarkers in early bacterial infection and sepsis diagnostics in feverish young children.

    • Algirdas Dagys, Goda Laucaitytė, Augusta Volkevičiūtė, Silvijus Abramavičius, Rimantas Kėvalas, Astra Vitkauskienė, and Lina Jankauskaitė.
    • Lithuanian University of Health Sciences, Medical Academy, Department of Pediatrics, 50161 Kaunas, Lithuania.
    • Int J Med Sci. 2022 Jan 1; 19 (4): 753761753-761.

    Background And ObjectivesWhile most feverish children have self-limiting diseases, 5-10% develop a serious and potentially life-threatening bacterial infection (BI). Due to potential risk, prompt recognition of BI and sepsis in the pediatric emergency department (PED) remains a clinical priority. The aim of the study was to evaluate the role of certain cytokines and chemokines separately and in combination with routine blood tests in early BI and sepsis diagnostics at PED.Materials And MethodsWe prospectively studied children younger than 5 presenting to the PED with fever lasting for under 12 hours with high risk for serious illness. Clinical data, routine blood analysis, and inflammatory cytokine and chemokine panels were evaluated for their diagnostic abilities. Two separate analyses were carried out on the patients' data: one contrasting BI and viral infection (VI) groups, the other comparing septic and non-septic patients.ResultsThe sample comprised 70 patients (40% with BI). IL-2 was found to be the most specific biomarker to identify BI with specificity of 100%. The best discriminative ability was demonstrated by combining IL-2, IL-6, CRP, WBC, and neutrophil count: AUC 0.942 (95% Cl 0.859-0.984). IL-10 exhibited a greater AUC (0.837. 95% CI: 0.730-0.915 p<0.05) than CRP (0.807. 95% CI: 0.695-0.895 p<0.05) when predicting sepsis and showed high specificity (98%) and moderate sensitivity (75%).ConclusionsIL-6 and IL-2 could increase the diagnostic ability of routine blood tests for predicting BI, as IL-10 raises specificity for recognizing sepsis in the early hours of disease onset.© The author(s).

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