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J Med Biochem. 2015 Oct;34(4):431-439. doi: 10.1515/jomb-2015-0002. Epub 2015 Sep 19.

Prognostic Value and Daily Trend of Interleukin-6, Neutrophil CD64 Expression, C-Reactive Protein and Lipopolysaccharide-Binding Protein in Critically Ill Patients: Reliable Predictors of Outcome or Not?.

Journal of medical biochemistry

Dragan Djordjevic, Janko Pejovic, Maja Surbatovic, Jasna Jevdjic, Sonja Radakovic, Milic Veljovic, Aneta Peric, Tamara Andjelic, Nada Popovic

Affiliations

  1. Clinic of Anesthesiology and Intensive Therapy, Military Medical Academy, Belgrade, Serbia; Faculty of Medicine of the Military Medical Academy, University of Defence, Belgrade, Serbia.
  2. Institute of Medical Biochemistry, Military Medical Academy, Belgrade, Serbia; Faculty of Medicine of the Military Medical Academy, University of Defence, Belgrade, Serbia.
  3. Faculty of Medical Sciences, University of Kragujevac, Serbia; Clinical Center Kragujevac, Serbia.
  4. Sector of Preventive Medicine, Military Medical Academy, Belgrade, Serbia; Faculty of Medicine of the Military Medical Academy, University of Defence, Belgrade, Serbia.
  5. Sector for pharmacy, Military Medical Academy, Belgrade, Serbia; Faculty of Medicine of the Military Medical Academy, University of Defence, Belgrade, Serbia.
  6. Institute of Medical Biochemistry, Military Medical Academy, Belgrade, Serbia.
  7. School of Medicine, University of Belgrade, Serbia; Clinic for Burns, Plastic and Reconstructive Surgery, Belgrade, Serbia.

PMID: 28356852 PMCID: PMC4922357 DOI: 10.1515/jomb-2015-0002

Abstract

BACKGROUND: Severe sepsis and/or trauma complicated by multiple organ dysfunction syndrome are the leading causes of death in critically ill patients. The aim of this prospective single-centre study was to assess the prognostic value and daily trend of interleukin-6 (IL-6), neutrophil CD64 expression, C-reactive protein (CRP) and lipopolysaccharide-binding protein (LBP) regarding outcome in critically ill patients with severe trauma and/or severe sepsis. Outcome measure was hospital mortality.

METHODS: One hundred and two critically ill patients admitted to the intensive care unit of a tertiary university hospital were enrolled in this prospective study. Blood samples were collected on admission (day 1), days 2 and 3.

RESULTS: CD64 index was 1.6-fold higher on day 1 and 1.78-fold higher on day 2 in non-survivors (p<0.05). The area under the curve (AUC) for the CD64 index on day 1 for outcome was 0.727. At a cut-off level of 2.80 sensitivity was 75% and specificity was 65%. Patients with CD64 index level on day 1 higher than 2.80 had 2.4-fold higher probability of dying. Odds ratio is 2.40; 95% CI 0.60-9.67.

CONCLUSIONS: CD64 index on day 1 is a fairly good predictor of outcome. AUCs for IL-6, CRP and LBP were < 0.55, suggesting these biomarkers failed to predict outcome.

Keywords: biomarkers; critical care; leukocytes; outcome; prognosis

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