Mortality Predictors in Patients with Severe COPD Exacerbation

Area of Science:

• Critical Care Medicine
• Pulmonology
• Hematology

Background:

• Severe acute exacerbations of chronic obstructive pulmonary disease (AECOPD) are a significant cause of ICU admissions and mortality.
• Hematological inflammatory biomarkers like neutrophil-to-lymphocyte ratio (NLR) and systemic immune-inflammation index (SII) are explored for disease severity assessment.

Purpose of the Study:

• To evaluate the predictive value of hematological inflammatory biomarkers for mortality in ICU patients with AECOPD.
• To identify key biomarkers for risk stratification and early intervention in AECOPD.

Main Methods:

• Retrospective analysis of 104 ICU patients with AECOPD.
• Comparison of hematological indices (NLR, PLR, MLR, dNLR, SII) between survivors and non-survivors.
• Statistical analyses including logistic regression, Kaplan-Meier, and ROC curves.

Main Results:

• Higher SII (OR: 1.92) and NLR (OR: 2.89) independently predicted mortality in AECOPD patients.
• NLR > 8.0 and SII > 1800 were associated with significantly lower survival rates.
• SII (AUC=0.79) and NLR (AUC=0.82) demonstrated strong predictive power for mortality.

Conclusions:

• NLR, MLR, PLR, dNLR, and SII are independent predictors of mortality in ICU-admitted AECOPD patients.
• These easily evaluated biomarkers should be incorporated into ICU risk models for timely interventions.