Predictive Role of CX3CL1 and D-dimer Levels in Mortality Risk Stratification for COPD Patients With COVID-19

Jing Xue1, Meimei Liu2, Xin Liu2

  • 1Department of Internal Medicine, Jingbian County Hospital of Traditional Chinese Medicine, Yulin, CHN.

Cureus
|August 27, 2025
PubMed

Insights

Elevated levels of CX3CL1 and D-dimer predict mortality in hospitalized patients with chronic obstructive pulmonary disease (COPD) and COVID-19. Monitoring these inflammatory biomarkers can improve clinical decisions and patient outcomes.

Area of Science:

  • Pulmonary Medicine
  • Infectious Diseases
  • Immunology

Background:

  • Chronic obstructive pulmonary disease (COPD) exacerbations increase susceptibility to infections.
  • COVID-19 poses a significant threat to patients with underlying respiratory conditions like COPD.
  • Identifying predictors of mortality in COPD patients with COVID-19 is crucial for effective management.

Purpose of the Study:

  • To investigate the predictive value of CX3CL1 and D-dimer for mortality in hospitalized COPD patients with COVID-19.
  • To explore the association between inflammatory biomarkers and disease severity in this patient cohort.

Main Methods:

  • Retrospective study at Yulin Hospital, analyzing data from hospitalized COPD patients with COVID-19.
  • Collected complete blood counts and inflammatory cytokine levels at admission.
  • Assessed the relationship between CX3CL1, D-dimer, and mortality.

Main Results:

  • CX3CL1 and D-dimer levels were significantly higher in critical illness participants compared to severe cases.
  • CX3CL1 (0.78) and D-dimer (0.68) showed strong predictive indices.
  • Elevated CX3CL1 and D-dimer were associated with prolonged illness in COPD patients with COVID-19.

Conclusions:

  • CX3CL1 and D-dimer are potential biomarkers for predicting mortality in severe COVID-19 patients with COPD.
  • Monitoring these biomarkers can aid in clinical decision-making and risk stratification.
  • Improved risk assessment may lead to more targeted and effective treatment strategies.
Abstract

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