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Published on: April 18, 2011
Immune function in paediatric trauma patients: a prospective explorative cohort study.
Lotte M C Jacobs1, Michiel Vaneker2,3, Demi van Dalen1
1Department of Surgery, Radboud University Medical Center, Nijmegen, Netherlands.
Frontiers in Immunology
|June 5, 2026
Summary
Trauma in children triggers rapid immune changes, with severe injuries leading to immunosuppression that increases infection risk. This immunosuppression may be partially reversed by interferon-gamma (IFN-γ).
Area of Science:
- Pediatric critical care medicine
- Immunology
- Trauma surgery
Background:
- Trauma is a significant risk factor for nosocomial infections in children.
- The immunological effects of trauma and their link to injury severity in pediatric patients are not well understood.
- Associations between injury severity and immunosuppression in pediatric trauma patients require investigation.
Purpose of the Study:
- To characterize the early immunological effects of trauma and injury severity in pediatric patients.
- To assess differences in immune profiles between polytrauma patients who develop nosocomial infections and those with uncomplicated recovery.
- To explore potential therapeutic interventions for trauma-induced immunosuppression.
Main Methods:
- Prospective cohort study of children (4-16 years) including controls, monotrauma, and polytrauma patients.
- Immune function assessed via blood samples at the trauma scene, emergency room, and post-injury day 1.
- Evaluated immune cell counts, functionality, plasma cytokines, damage-associated molecular patterns (DAMPs), and ex vivo cytokine production.
Main Results:
- Elevated inflammatory biomarkers and immunosuppression were observed early after trauma, particularly in polytrauma patients.
- Immune trajectories differed between monotrauma and polytrauma groups, with polytrauma patients showing a more severe response.
- Polytrauma patients who developed nosocomial infections exhibited profound immunosuppression, partially reversible ex vivo with interferon-gamma (IFN-γ).
Conclusions:
- Paediatric traumatic injury induces rapid immune responses, with polytrauma leading to significant immunosuppression and increased infection risk.
- Early immune monitoring can identify high-risk pediatric trauma patients who may benefit from immunomodulatory therapies like IFN-γ.
- Findings suggest potential for targeted immunomodulation to mitigate infection risk in pediatric trauma patients, though further research with larger cohorts is warranted.
