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A Data-Driven Approach to Quantifying Immune States in Sepsis
Published on: February 7, 2025
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Red blood cell distribution width as prognostic factor in sepsis: A new use for a classical parameter
Víctor Moreno-Torres1, Ana Royuela2, Elena Múñez-Rubio1
1Internal Medicine Service, IDIPHIM (University Hospital Puerta de Hierro Research Institute), Hospital Universitario Puerta de Hierro Majadahonda. C/Joaquín Rodrigo 2, Majadahonda, Madrid, Spain.
Journal of Critical Care
|June 6, 2022
Summary
Red blood cell distribution width (RDW) effectively predicts mortality in intensive care unit (ICU) sepsis patients. Incorporating RDW into existing scoring systems like SOFA significantly enhances their ability to identify patients at high risk of death.
Area of Science:
- Critical Care Medicine
- Hematology
- Biomarker Discovery
Background:
- Sepsis poses a significant challenge in intensive care units (ICUs).
- Accurate prognostic biomarkers are crucial for timely intervention and improved patient outcomes.
- Existing scoring systems have limitations in predicting sepsis-related mortality.
Purpose of the Study:
- To evaluate the prognostic value of Red blood cell distribution width (RDW) in sepsis.
- To assess the ability of RDW to discriminate hospital mortality in ICU patients.
- To determine the added value of RDW when combined with established scoring systems.
Main Methods:
- Analysis of RDW dynamics in 203 septic ICU patients.
- Evaluation of RDW's discrimination ability for hospital mortality using AUC-ROC.
- Assessment of RDW's added value to SOFA, LODS, SAPS-II, and APACHE-II scores.
Main Results:
- Non-survivors exhibited higher RDW values during the first ICU week (p=0.048).
- RDW was independently associated with mortality, alongside SOFA, after multivariable adjustment.
- RDW improved the discrimination ability of SOFA, LODS, SAPS-II, and APACHE-II scores, particularly at 24 hours and admission.
Conclusions:
- RDW serves as an independent prognostic marker for mortality in ICU sepsis patients.
- RDW enhances the predictive power of established clinical scoring systems.
- RDW can be integrated into prognostic scores to reflect systemic dysfunction and inflammatory response.
