Analysis of prognostic factors in critically ill patients with COVID-19

Klaudia Bartoszewicz1, Mateusz Bartoszewicz2, Wojciech Gradkowski2

  • 1Department of Clinical Immunology, Medical University of Bialystok, Bialystok, Poland.

Plos One
|June 27, 2024
PubMed

Insights

Lower Interleukin-6 and White Blood Cell counts in the ICU predict survival in COVID-19 patients. These markers, not demographics, are key for monitoring critically ill individuals and improving outcomes.

Area of Science:

  • Critical Care Medicine
  • Infectious Diseases
  • Clinical Laboratory Science

Background:

  • Coronavirus Disease 2019 (COVID-19) presents a significant global health challenge.
  • Identifying mortality predictors in intensive care unit (ICU) patients is crucial for effective management.
  • Existing research on COVID-19 mortality factors requires further investigation, particularly in diverse patient cohorts.

Purpose of the Study:

  • To identify key risk factors associated with mortality in critically ill COVID-19 patients admitted to the ICU.
  • To investigate the predictive value of demographic, clinical, and laboratory markers for in-ICU mortality.
  • To explore the relationship between specific inflammatory markers and patient survival.

Main Methods:

  • Retrospective cohort study of 201 ICU-admitted COVID-19 patients.
  • Data collection included demographics, laboratory findings (Interleukin-6, White Blood Cells), and mortality outcomes.
  • Logistic regression analysis was used to determine significant predictors of in-ICU mortality.

Main Results:

  • Lower levels of Interleukin-6 (IL-6) and White Blood Cells (WBC) at 24 and 48 hours post-ICU admission were significant indicators of survival.
  • Demographic factors (gender, age) and comorbidities were not significant predictors of in-ICU mortality.
  • Antibiotic use was associated with increased mortality risk (OR: 11.2, p = 0.031), while ventilator-associated pneumonia was higher in survivors.

Conclusions:

  • Monitoring IL-6 and WBC levels within 48 hours of ICU admission is vital for predicting COVID-19 patient outcomes.
  • These inflammatory markers appear more critical than demographic factors in determining survival.
  • Findings may inform therapeutic strategies and ICU protocols for managing critically ill COVID-19 patients.

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