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Red cell distribution in critically ill patients with chronic obstructive pulmonary disease
1Department of Respiratory and Critical Care Medicine, Lishui Municipal Central Hospital, Lishui, Zhejiang 323000, China.
Elevated red blood cell distribution width (RDW) is linked to higher 28-day mortality in critically ill patients with chronic obstructive pulmonary disease (COPD). This finding highlights RDW as a potential prognostic marker in this vulnerable patient group.
Area of Science:
- Critical care medicine
- Pulmonology
- Hematology
Background:
- Red blood cell distribution width (RDW) is a known mortality predictor in chronic obstructive pulmonary disease (COPD).
- Data on RDW's prognostic value in critically ill COPD patients are limited.
Purpose of the Study:
- To investigate the association between RDW and 28-day all-cause mortality in critically ill COPD patients.
- To determine if RDW can serve as a prognostic indicator in this population.
Main Methods:
- Retrospective cohort study using the MIMIC III V1.4 database.
- Identification of critically ill COPD patients using ICD codes.
- Analysis of the first RDW value within 24 hours of ICU admission and 28-day mortality.
Main Results:
- A total of 2,344 patients were analyzed.
- Increased RDW was significantly associated with increased 28-day mortality (OR 1.15; 95% CI 1.09-1.21).
- Higher RDW groups showed a trend towards increased mortality risk compared to the low-RDW group (P trend < 0.0001).
Conclusions:
- Elevated RDW is associated with increased 28-day mortality in critically ill COPD patients.
- RDW may be a valuable prognostic marker for this patient group.
- Further research is warranted to explore this association.
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