Does Microalbuminuria Predict Mortality in Pediatric Intensive Care Unit?

Area of Science:

• Pediatric Critical Care Medicine
• Nephrology
• Clinical Diagnostics

Background:

• Assessing mortality risk in pediatric intensive care units (PICUs) is crucial for timely intervention.
• Microalbuminuria (MA) is a potential biomarker for various clinical conditions.
• The predictive value of MA for mortality in the PICU setting requires further investigation.

Purpose of the Study:

• To evaluate the accuracy of microalbuminuria (MA) as a predictor of mortality in pediatric intensive care unit (PICU) patients.
• To compare the predictive performance of MA with established pediatric mortality scoring systems.

Main Methods:

• A prospective study included 250 pediatric patients (1 month to 18 years) admitted to the PICU for at least 24 hours.
• Spot urine samples were analyzed for microalbuminuria (MA).
• Pediatric Risk of Mortality III-24 and Pediatric Multiple Organ Dysfunction scores were calculated; data were statistically analyzed and compared with observed mortality.

Main Results:

• Microalbuminuria (MA) levels were significantly higher in non-survivors (48 mg/g) compared to survivors (18 mg/g) (p < 0.05).
• Receiver operating characteristic (ROC) curve analysis indicated an area under the curve of 0.81 for MA at a cutoff value of 32 mg/g.
• MA demonstrated a sensitivity of 85.2%, specificity of 70.8%, PPV of 31.5%, and NPV of 96.8% for predicting mortality within 24 hours of PICU admission.

Conclusions:

• Microalbuminuria (MA) is a valuable and accessible tool for predicting mortality in pediatric intensive care unit (PICU) patients.
• Early measurement of MA can aid in identifying high-risk pediatric patients in the PICU.
• MA shows promising performance in discriminating between survivors and non-survivors in the PICU setting.