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Hospital-acquired renal insufficiency: a prospective study
The American Journal of Medicine
|February 1, 1983
Summary
Hospital-acquired renal insufficiency is a significant risk, with iatrogenic factors causing over half of cases. Poor prognostic indicators like oliguria and increased serum creatinine correlate with high mortality rates.
Area of Science:
- Nephrology
- Internal Medicine
- Hospital Medicine
Background:
- Hospital-acquired renal insufficiency (HARI) poses a significant threat to patient outcomes.
- Iatrogenic factors are increasingly recognized as major contributors to HARI.
Purpose of the Study:
- To prospectively evaluate the incidence and causes of hospital-acquired renal insufficiency.
- To identify risk factors and prognostic indicators for HARI.
Main Methods:
- Prospective evaluation of 2,262 consecutive medical and surgical admissions.
- Analysis of 2,216 at-risk patients to determine the incidence of renal insufficiency.
- Identification of contributing iatrogenic factors and assessment of prognostic indicators.
Main Results:
- 4.9% of at-risk patients developed renal insufficiency.
- Decreased renal perfusion, postoperative factors, contrast media, and aminoglycosides caused 79% of HARI episodes.
- Iatrogenic factors accounted for 55% of all HARI cases.
- Oliguria, abnormal urine sediment, and increased serum creatinine (≥3 mg/dL) were poor prognostic indicators, with a 64% mortality rate for the latter.
Conclusions:
- There is a substantial risk of developing renal failure during hospitalization.
- Hospital-acquired renal insufficiency carries a high mortality rate.
- Identifying and mitigating iatrogenic causes is crucial for improving patient outcomes.