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Host biomarkers and combinatorial scores for the detection of serious and invasive bacterial infection in pediatric patients with fever without source. | LitMetric

AI Article Synopsis

  • - The study aimed to improve the detection of bacterial infections in children under 3 years with fever without a clear source, by combining viral and bacterial biomarkers (specifically TRAIL, IP-10, and CRP) and comparing their effectiveness to standard individual biomarkers and a Labscore.
  • - Conducted with 241 patients, the study found that 28% had bacterial infections, and Labscore and ImmunoXpert showed the highest diagnostic accuracy, with AUC values indicating their effectiveness in identifying bacterial infections, especially when compared to other individual biomarkers.
  • - The results indicate that Labscore and ImmunoXpert are reliable tools for distinguishing bacterial infections in young children, with high sensitivity and specificity, although slightly less effective in

Article Abstract

Background: Improved tools are required to detect bacterial infection in children with fever without source (FWS), especially when younger than 3 years old. The aim of the present study was to investigate the diagnostic accuracy of a host signature combining for the first time two viral-induced biomarkers, tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) and interferon γ-induced protein-10 (IP-10), with a bacterial-induced one, C-reactive protein (CRP), to reliably predict bacterial infection in children with fever without source (FWS) and to compare its performance to routine individual biomarkers (CRP, procalcitonin (PCT), white blood cell and absolute neutrophil counts, TRAIL, and IP-10) and to the Labscore.

Methods: This was a prospective diagnostic accuracy study conducted in a single tertiary center in children aged less than 3 years old presenting with FWS. Reference standard etiology (bacterial or viral) was assigned by a panel of three independent experts. Diagnostic accuracy (AUC, sensitivity, specificity) of host individual biomarkers and combinatorial scores was evaluated in comparison to reference standard outcomes (expert panel adjudication and microbiological diagnosis).

Results: 241 patients were included. 68 of them (28%) were diagnosed with a bacterial infection and 5 (2%) with invasive bacterial infection (IBI). Labscore, ImmunoXpert, and CRP attained the highest AUC values for the detection of bacterial infection, respectively 0.854 (0.804-0.905), 0.827 (0.764-0.890), and 0.807 (0.744-0.869). Labscore and ImmunoXpert outperformed the other single biomarkers with higher sensitivity and/or specificity and showed comparable performance to one another although slightly reduced sensitivity in children < 90 days of age.

Conclusion: Labscore and ImmunoXpert demonstrate high diagnostic accuracy for safely discriminating bacterial infection in children with FWS aged under and over 90 days, supporting their adoption in the assessment of febrile patients.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10642781PMC
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0294032PLOS

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