Predictive value of elevated interleukin-33 levels for multi-organ dysfunction syndrome in trauma patients in South

Sanghyun An1,2, In Sik Shin3, Myoung Jun Kim4

  • 1Division of Colorectal Surgery, Department of Surgery, Yonsei University Wonju College of Medicine, Wonju, Korea.

Acute and Critical Care
|December 11, 2025
PubMed
Abstract

Insights

Interleukin-33 (IL-33) levels were initially higher in trauma patients who developed multi-organ distress syndrome (MODS). However, IL-33 did not prove to be an independent predictor of MODS in further analysis.

Area of Science:

  • Trauma care
  • Critical care medicine
  • Biomarker discovery

Background:

  • Multi-organ distress syndrome (MODS) is a significant cause of morbidity in trauma patients.
  • Interleukin-33 (IL-33) is a cytokine that reflects tissue damage and inflammatory responses.
  • Identifying reliable indicators for MODS is crucial for improving patient outcomes.

Purpose of the Study:

  • To evaluate the effectiveness of IL-33 as an indicator for MODS in trauma patients.
  • To determine if initial IL-33 levels correlate with MODS development.
  • To identify independent predictors of MODS progression.

Main Methods:

  • Prospective study of 87 trauma patients admitted between July 2022 and July 2023.
  • IL-33 levels were measured in blood samples for four days post-admission.
  • Correlations between IL-33 levels, clinical data, and laboratory indicators were analyzed.

Main Results:

  • Twenty patients developed MODS; they had higher initial IL-33 levels compared to the non-MODS group.
  • IL-33 levels showed distinct patterns in MODS versus non-MODS groups post-admission.
  • Initial IL-33 levels correlated with Abbreviated Injury Scale 5 and Injury Severity Score (ISS).
  • ISS and delta neutrophil index were identified as independent predictors of MODS.

Conclusions:

  • Initial IL-33 levels are elevated in trauma patients who develop MODS.
  • While IL-33 shows an initial association with MODS, it was not an independent predictor in multivariate analysis.
  • IL-33 may be relevant for assessing trauma severity, but further validation is needed for its use as a MODS biomarker.