Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Early Diagnostic Markers of Late-Onset Sepsis of the Newborn

Version 1 : Received: 14 August 2023 / Approved: 15 August 2023 / Online: 15 August 2023 (08:08:24 CEST)

How to cite: Gatseva, P.R.; Blazhev, A.; Yordanov, Z.; Atanasova, V. Early Diagnostic Markers of Late-Onset Sepsis of the Newborn. Preprints 2023, 2023081095. https://doi.org/10.20944/preprints202308.1095.v1 Gatseva, P.R.; Blazhev, A.; Yordanov, Z.; Atanasova, V. Early Diagnostic Markers of Late-Onset Sepsis of the Newborn. Preprints 2023, 2023081095. https://doi.org/10.20944/preprints202308.1095.v1

Abstract

The aim of this study was to determine the potential of early inflammatory markers to diagnose late-onset neonatal sepsis - procalcitonin (PCT), interleukin 6 (IL-6), interleukin 8 (IL-8) and endocan (ESM-1), and to compare them with routinely used markers. A prospective (January, 2022 – January, 2023) clinical-epidemiological study was conducted in a third level NICU in Pleven, Bulgaria. Patients with suspected nosocomial infection and healthy controls were tested. A sandwich ELISA method was used to measure the serum concentrations. Sixty newborns with an average gestational age of 29.75 ± 3.61 gestational weeks were included, of which 35 % were symptomatic and infected, 33.3 % were symptomatic but uninfected, and 31.7 % were asymptomatic controls. The mean values of PCT, IL-6, I:T index and PLT differ significantly in the three groups. For ESM-1, IL-8 and CRP, the difference was statistically insignificant. The best sensitivity (78%) and negative predictive value (84%) was found for IL-6. The combination of PCT + IL-6 + I:T+ PLT demonstrated high precision (78%) and best sensitivity (94%) and negative predictive value (95%). The introduction into routine practice of indicators such as PCT and IL-6 may provide an opportunity to promptly optimize the diagnostic and therapeutic approach to LOS.

Keywords

neonates; late-onset sepsis; inflammatory markers

Subject

Medicine and Pharmacology, Pediatrics, Perinatology and Child Health

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