Related Experiment Video
Updated: Jun 5, 2026

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
Published on: January 29, 2018
AKI and Mortality in Children Hospitalized With Malnutrition
Anthony Batte1,2,3,4, Aidah Namugumya4, Denise C Hasson5
1Child Health and Development Center, College of Health Sciences, Makerere University, Kampala, Uganda.
Insights
Acute kidney injury (AKI) is common in malnourished children and linked to mortality when specific creatinine thresholds are used. Current risk scores are ineffective, highlighting the need for better AKI detection methods in this vulnerable group.
Area of Science:
- Pediatric Nephrology
- Global Health
- Critical Care Medicine
Background:
- Acute kidney injury (AKI) is a frequent complication in hospitalized children.
- Children with acute malnutrition present unique challenges for AKI diagnosis due to low baseline creatinine levels.
Purpose of the Study:
- To determine the prevalence of AKI in children hospitalized with acute malnutrition.
- To assess how different AKI definitions, particularly those incorporating minimum creatinine thresholds, affect risk stratification.
- To evaluate the performance of the STOP AKI risk score in this population.
Main Methods:
- 185 Ugandan children hospitalized with acute malnutrition were enrolled.
- AKI was defined using Kidney Disease: Improving Global Outcomes (KDIGO) criteria with serial creatinine measurements.
- The study evaluated the impact of minimum absolute creatinine thresholds (e.g., 0.4 mg/dl) on AKI identification and its association with mortality.
Main Results:
- AKI, defined by KDIGO without a minimum threshold, was not associated with mortality.
- Applying a 0.4 mg/dl minimum creatinine threshold identified AKI in 23.2% of children and was independently associated with increased mortality (aOR: 4.06).
- The ISN STOP AKI risk score showed poor discrimination for AKI risk (AUROC: 0.50).
Conclusions:
- Clinically meaningful AKI in malnourished children is strongly associated with mortality when appropriate creatinine thresholds are applied.
- Standard AKI risk prediction tools perform poorly in this population.
- There is a critical need for adapted strategies to identify AKI in children with acute malnutrition.
Introduction:
Acute kidney injury (AKI) is a common complication of pediatric hospitalizations. We evaluated the prevalence of AKI in children hospitalized with acute malnutrition, examined how AKI definitions influence risk stratification, and assessed the performance of the STOP AKI risk score.
Methods:
We enrolled 185 Ugandan children hospitalized with acute malnutrition. AKI was defined using the Kidney Disease: Improving Global Outcomes (KDIGO) criteria based on serial creatinine measurements, with the nadir creatinine during hospitalization as baseline. Because children with malnutrition have low baseline creatinine levels, we evaluated whether applying minimum absolute creatinine thresholds improved identification of clinically meaningful AKI, defined by its association with mortality.
Results:
The median age was 1.2 years, and 13.5% of children died. KDIGO-defined AKI without a minimum creatinine threshold was not associated with mortality. Applying a minimum absolute creatinine threshold of 0.4 mg/dl to the KDIGO criteria identified AKI in 23.2% of participants and was independently associated with mortality (adjusted odds ratio [OR, aOR]: 4.06, 95% confidence interval [CI]: 1.39-11.84). A threshold of 0.5 mg/dl identified fewer children but predominantly severe AKI. Clinical risk factors included diarrhea, vomiting, and sepsis. The ISN STOP AKI risk score did not discriminate AKI risk (area under the receiver operating characteristic curve [AUROC]: 0.50, 95% CI: 0.40-0.60).
Conclusion:
AKI is common in children hospitalized with acute malnutrition and is strongly associated with mortality when clinically meaningful creatinine thresholds are applied. Existing AKI risk tools perform poorly in this population, thereby underscoring the need for adapted approaches to AKI identification in malnourished children.
Related Concept Videos
Anorexia Nervosa
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption
Pharmacokinetics in Pediatric Patients: Drug Distribution
Overview of Protein Metabolism
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
Pharmacokinetics in Pediatric Patients: Drug Metabolism
Acute Kidney Injury III: Clinical Manifestations
