Cytokine kinetic profiles in children with acute lower respiratory tract infection: a post hoc descriptive analysis from a randomized control trial

Standard inflammatory markers and chest radiography lack the ability to discriminate bacterial from non-bacterial lower respiratory tract infection (LRTI). Cytokine profiles may serve as biomarkers for LRTI, but their applicability to identify aetiology, severity of disease and need for antibiotic p...

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Veröffentlicht in:Clinical microbiology and infection 2018-12, Vol.24 (12), p.1341.e1-1341.e7
Hauptverfasser: Fuchs, A., Gotta, V., Decker, M.-L., Szinnai, G., Baumann, P., Bonhoeffer, J., Ritz, N., Baer, G., Berthet, G., Bonhoeffer, J.M., Buettcher, M., Gambon, M., Heininger, U., Mueller, B., Schaad, U.B., Schuetz, P., Trachsel, D.
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container_end_page 1341.e7
container_issue 12
container_start_page 1341.e1
container_title Clinical microbiology and infection
container_volume 24
creator Fuchs, A.
Gotta, V.
Decker, M.-L.
Szinnai, G.
Baumann, P.
Bonhoeffer, J.
Ritz, N.
Baer, G.
Berthet, G.
Bonhoeffer, J.M.
Buettcher, M.
Gambon, M.
Heininger, U.
Mueller, B.
Schaad, U.B.
Schuetz, P.
Trachsel, D.
description Standard inflammatory markers and chest radiography lack the ability to discriminate bacterial from non-bacterial lower respiratory tract infection (LRTI). Cytokine profiles may serve as biomarkers for LRTI, but their applicability to identify aetiology, severity of disease and need for antibiotic prescription in children remains poorly defined. Objectives were to determine the cytokine kinetic profiles over 5 days in paediatric patients with LRTI, to investigate the relationship between cytokine patterns, and clinical and laboratory variables. We included patients aged 1 month to 18 years, with febrile LRTI and three consecutive cytokines measurements on days 1, 3 and 5 of a randomized controlled trial (ProPAED study). We evaluated differences in cytokine concentrations between days and associations with clinical and laboratory variables. A total of 181 patients (median age 4.1 years) were included; 72/181 (40%) received antibiotics. Serum concentrations of interferon (IFN)-γ, interleukin (IL)-1ra, IL-6, IL-10, IFN-γ-inducible protein (IP)-10 and tumor necrosis factor-α were elevated on day 1 and decreased subsequently, with the greatest decline between day 1 and 3 (by −8 to >−94%). Procalcitonin (PCT) and C-reactive protein (CRP) values showed a protracted decrease with the most prominent reduction in concentrations between days 3 and 5. Significantly elevated IL-6 concentrations were associated with hospital admission, antibiotic treatment, and prolonged antibiotic treatment. Bacteraemic LRTI patients had higher concentrations of IL-1ra (p 
doi_str_mv 10.1016/j.cmi.2018.03.016
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Cytokine profiles may serve as biomarkers for LRTI, but their applicability to identify aetiology, severity of disease and need for antibiotic prescription in children remains poorly defined. Objectives were to determine the cytokine kinetic profiles over 5 days in paediatric patients with LRTI, to investigate the relationship between cytokine patterns, and clinical and laboratory variables. We included patients aged 1 month to 18 years, with febrile LRTI and three consecutive cytokines measurements on days 1, 3 and 5 of a randomized controlled trial (ProPAED study). We evaluated differences in cytokine concentrations between days and associations with clinical and laboratory variables. A total of 181 patients (median age 4.1 years) were included; 72/181 (40%) received antibiotics. Serum concentrations of interferon (IFN)-γ, interleukin (IL)-1ra, IL-6, IL-10, IFN-γ-inducible protein (IP)-10 and tumor necrosis factor-α were elevated on day 1 and decreased subsequently, with the greatest decline between day 1 and 3 (by −8 to &gt;−94%). Procalcitonin (PCT) and C-reactive protein (CRP) values showed a protracted decrease with the most prominent reduction in concentrations between days 3 and 5. Significantly elevated IL-6 concentrations were associated with hospital admission, antibiotic treatment, and prolonged antibiotic treatment. Bacteraemic LRTI patients had higher concentrations of IL-1ra (p &lt;0.0055) and IL-6 (p &lt;0.0055) on day 1. We observed an earlier decrease of elevated cytokines compared to PCT or CRP. 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Serum concentrations of interferon (IFN)-γ, interleukin (IL)-1ra, IL-6, IL-10, IFN-γ-inducible protein (IP)-10 and tumor necrosis factor-α were elevated on day 1 and decreased subsequently, with the greatest decline between day 1 and 3 (by −8 to &gt;−94%). Procalcitonin (PCT) and C-reactive protein (CRP) values showed a protracted decrease with the most prominent reduction in concentrations between days 3 and 5. Significantly elevated IL-6 concentrations were associated with hospital admission, antibiotic treatment, and prolonged antibiotic treatment. Bacteraemic LRTI patients had higher concentrations of IL-1ra (p &lt;0.0055) and IL-6 (p &lt;0.0055) on day 1. We observed an earlier decrease of elevated cytokines compared to PCT or CRP. 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Cytokine profiles may serve as biomarkers for LRTI, but their applicability to identify aetiology, severity of disease and need for antibiotic prescription in children remains poorly defined. Objectives were to determine the cytokine kinetic profiles over 5 days in paediatric patients with LRTI, to investigate the relationship between cytokine patterns, and clinical and laboratory variables. We included patients aged 1 month to 18 years, with febrile LRTI and three consecutive cytokines measurements on days 1, 3 and 5 of a randomized controlled trial (ProPAED study). We evaluated differences in cytokine concentrations between days and associations with clinical and laboratory variables. A total of 181 patients (median age 4.1 years) were included; 72/181 (40%) received antibiotics. Serum concentrations of interferon (IFN)-γ, interleukin (IL)-1ra, IL-6, IL-10, IFN-γ-inducible protein (IP)-10 and tumor necrosis factor-α were elevated on day 1 and decreased subsequently, with the greatest decline between day 1 and 3 (by −8 to &gt;−94%). Procalcitonin (PCT) and C-reactive protein (CRP) values showed a protracted decrease with the most prominent reduction in concentrations between days 3 and 5. Significantly elevated IL-6 concentrations were associated with hospital admission, antibiotic treatment, and prolonged antibiotic treatment. Bacteraemic LRTI patients had higher concentrations of IL-1ra (p &lt;0.0055) and IL-6 (p &lt;0.0055) on day 1. We observed an earlier decrease of elevated cytokines compared to PCT or CRP. Both pro- and anti-inflammatory cytokines may serve as markers for severity of LRTI.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>29555393</pmid><doi>10.1016/j.cmi.2018.03.016</doi><oa>free_for_read</oa></addata></record>
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subjects Adolescent
Anti-Bacterial Agents - therapeutic use
Antibacterial agents
Bacteremia - diagnosis
Bacteremia - immunology
Bacteremia - microbiology
bacterial infections
Biomarkers - blood
C-Reactive Protein - analysis
Calcitonin - blood
Calcitonin Gene-Related Peptide - blood
Child
Child, Preschool
cytokines
Cytokines - blood
Cytokines - immunology
Female
Humans
Immune system
Infant
Male
paediatrics
Protein Precursors - blood
Respiratory Tract Infections - blood
Respiratory Tract Infections - diagnosis
Respiratory Tract Infections - drug therapy
Respiratory Tract Infections - immunology
Tumor Necrosis Factor-alpha - blood
title Cytokine kinetic profiles in children with acute lower respiratory tract infection: a post hoc descriptive analysis from a randomized control trial
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