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Updated: May 19, 2026

A Large Animal Model for Acute Kidney Injury by Temporary Bilateral Renal Artery Occlusion
Published on: February 2, 2021
Nutritional support for acute kidney injury.
1Department of Intensive Care Unit, Sichuan Cancer Hospital, Chengdu, China.
Nutritional support for acute kidney injury (AKI) shows limited evidence of effectiveness. More high-quality studies are needed to determine the benefits and safety of enteral and parenteral nutrition in AKI patients.
Area of Science:
- Nephrology
- Critical Care Medicine
- Nutritional Science
Background:
- Acute kidney injury (AKI) management focuses on supportive care and treating underlying causes.
- Enteral and parenteral nutrition are used for AKI patients, but their efficacy remains debated.
- This review updates previous findings on nutritional support in AKI.
Purpose of the Study:
- To evaluate the effectiveness and safety of nutritional support for patients diagnosed with AKI.
- Assess the impact of different nutritional interventions on AKI outcomes.
Main Methods:
- Systematic review of randomized controlled trials (RCTs) identified through comprehensive database searches (CENTRAL, MEDLINE, EMBASE, etc.).
- Data extraction and quality assessment were performed independently by authors.
- Results were synthesized using risk ratios (RR) and mean differences (MD) with 95% confidence intervals (CI).
Main Results:
- Intravenous essential L-amino acids (EAA) showed potential for increased AKI recovery rates and survival in dialyzed patients compared to glucose alone.
- Higher calorie total parenteral nutrition (TPN) did not improve nitrogen balance but increased serum triglycerides and insulin needs.
- Mixed results were observed for different amino acid formulations and dosages regarding nitrogen balance, urea levels, and serum creatinine.
Conclusions:
- Insufficient evidence currently supports the widespread effectiveness of nutritional support for AKI.
- High-quality research is necessary to establish reliable evidence on the effects and safety of nutritional interventions in AKI.
- Further studies should focus on specific nutritional strategies and patient populations within AKI.
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