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Published on: July 19, 2018
Dialysis patients and critical illness
Stephanie Thompson1, Neesh Pannu
1Division of Nephrology, University of Alberta, Edmonton, Canada.
Summary
Dialysis patients admitted to the intensive care unit (ICU) have higher mortality, but their outcomes are reasonable when considering illness severity. Illness severity, not dialysis status, drives adverse outcomes in critically ill dialysis patients.
Area of Science:
- Nephrology
- Critical Care Medicine
- Epidemiology
Background:
- Long-term dialysis patients represent a significant portion of intensive care unit (ICU) admissions, with numbers expected to rise.
- This population presents with increased comorbidities and illness severity compared to the general ICU population.
Observation:
- Critically ill dialysis patients exhibit higher ICU and in-hospital mortality rates than the general population.
- However, their mortality is lower than critically ill patients with acute kidney injury, suggesting illness severity is a key factor.
- Existing prognostic scoring systems often overestimate mortality in dialysis patients.
Findings:
- Dialysis patients admitted to the ICU demonstrate reasonable short- and long-term outcomes when compared to the general ICU population.
- Illness severity and comorbid conditions, rather than dialysis status alone, are the primary drivers of observed mortality differences.
- Data guiding ICU admission decisions for dialysis patients are limited.
Implications:
- Recognizing the impact of illness severity is crucial for accurate prognostication and resource allocation for dialysis patients in the ICU.
- Further research is needed to refine prognostic models and decision-making tools for this vulnerable patient group.
- Improved understanding can lead to better management strategies and potentially improved outcomes for critically ill dialysis patients.
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