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Acute renal failure in a critical care unit
W M Van der Merwe1, J F Collins
1Department of Medicine, Auckland Hospital.
The New Zealand Medical Journal
|March 8, 1989
Summary
This study found that the number of organ failures, often linked to sepsis, significantly predicts mortality in critically ill patients with acute renal failure. Survival is excellent when sepsis and multiple organ failure are absent.
Area of Science:
- Nephrology
- Critical Care Medicine
- Infectious Disease
Background:
- Acute renal failure (ARF) is a common complication in critically ill patients.
- Dialysis is frequently required for ARF management in intensive care units.
- High mortality rates are associated with ARF in the critical care setting.
Purpose of the Study:
- To review patients requiring dialysis for ARF in a critical care unit.
- To identify predictors of mortality in this patient population.
- To understand the role of sepsis and organ failure in ARF outcomes.
Main Methods:
- Retrospective review of 45 patients requiring dialysis for ARF from 1981-1985.
- Analysis of patient demographics, underlying conditions (surgical, medical, obstetric), and organ system function.
- Statistical review of variables to determine predictors of mortality.
Main Results:
- Overall mortality rate was 53% among the 45 patients.
- The number of failed organs was the only significant predictor of mortality.
- Progressive multiple organ failure was frequently associated with sepsis, though not universally proven.
Conclusions:
- Reducing ARF mortality hinges on improved prevention, diagnosis, and management of sepsis.
- Patients without sepsis or multiple organ failure demonstrated excellent survival rates.
- Sepsis and progressive organ failure are key determinants of poor outcomes in ARF patients requiring dialysis.