Decoy receptor 3 as a diagnostic marker for sepsis: a meta-analysis

Area of Science:

• Critical Care Medicine
• Biomarkers
• Infectious Diseases

Background:

• Sepsis is a life-threatening condition with high mortality, characterized by systemic inflammation and organ damage.
• Decoy receptor 3 (DcR3) is increasingly recognized for its association with infection severity.
• DcR3's potential as a sensitive and specific sepsis biomarker warrants investigation.

Purpose of the Study:

• To evaluate the diagnostic accuracy of decoy receptor 3 (DcR3) for sepsis in intensive care unit (ICU) patients.
• To assess DcR3's performance in differentiating sepsis from normal controls and systemic inflammatory response syndrome (SIRS).

Main Methods:

• A meta-analysis was conducted using data from six databases.
• Studies assessing DcR3 diagnostic accuracy for sepsis in ICUs were included.
• Random-effects models were used to calculate pooled sensitivity, specificity, and AUC.

Main Results:

• DcR3 demonstrated high diagnostic power for sepsis (AUC=0.99) versus controls, with pooled sensitivity of 0.98 and specificity of 0.95.
• When differentiating sepsis from SIRS, DcR3 showed an AUC of 0.95, with pooled sensitivity of 0.93 and specificity of 0.87.
• Positive likelihood ratio (PLR) and diagnostic odds ratio (DOR) indicated strong discriminatory ability for DcR3.

Conclusions:

• Decoy receptor 3 (DcR3) serves as a valuable marker for the early diagnosis of sepsis upon ICU admission.
• The findings highlight DcR3's potential utility in clinical settings for sepsis identification.
• Further large-scale, multicenter prospective studies are recommended to confirm these results due to study limitations and heterogeneity.