Acute renal failure: six months pilot study in qatar

Area of Science:

• Nephrology
• Critical Care Medicine

Background:

• Acute renal failure (ARF) is a significant complication in hospitalized patients.
• Identifying the primary causes and outcomes of ARF is crucial for improving patient management.

Purpose of the Study:

• To investigate the incidence, etiologic factors, and outcomes of acute renal failure in a hospital setting.
• To compare mortality rates between different causes of ARF and analyze the impact of oliguria.

Main Methods:

• Retrospective analysis of 11,216 hospital admissions over six months.
• Diagnosis of ARF based on elevated blood urea nitrogen and creatinine levels.
• Categorization of ARF causes into renal ischemia and nephrotoxic drugs, with sub-classification of ischemic causes.

Main Results:

• ARF developed in 0.49% of patients (55/11,216), with a mean age of 51.9 years.
• Renal ischemia (69%) was the leading cause, followed by nephrotoxic drugs (16.3%). Septic shock and severe hypotension were major contributors to ischemic ARF.
• ARF patients had a longer hospital stay (15.8 days vs. 5.1 days). Overall mortality was 21.8%, exclusively concentrated in the oliguric group, with significantly higher mortality in ischemic ARF compared to nephrotoxic ARF (p < 0.05).

Conclusions:

• Renal ischemia, particularly due to septic shock and hypotension, is the predominant cause of ARF in hospitalized patients.
• Oliguria is a critical indicator of poor prognosis in ARF, irrespective of age.
• Prompt management of hypotension and judicious use of renal replacement therapies are essential, with a notable difference in survival based on ARF etiology.