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Serum Albumin Level as a Predictor of Outcome in Patients Admitted to Pediatric Intensive Care Units
Osama E Bekhit1, Remon M Yousef1, Hoiyda A Abdelrasol2
1From the Departments of Pediatrics.
Insights
Low serum albumin on pediatric intensive care unit (PICU) admission predicts higher mortality. This finding highlights albumin as a key prognostic indicator for critically ill children.
Area of Science:
- Pediatric critical care medicine
- Clinical biochemistry
- Prognostic marker research
Background:
- Serum albumin levels are routinely measured on admission to pediatric intensive care units (PICUs).
- The prognostic value of admission serum albumin in critically ill children remains an area of investigation.
Purpose of the Study:
- To evaluate serum albumin level on admission as a prognostic indicator in the pediatric intensive care unit (PICU).
- To assess the association between hypoalbuminemia and mortality in critically ill children.
Main Methods:
- A prospective study was conducted at Fayoum University Children's Hospital.
- Demographic, clinical, and laboratory data were collected, including the Pediatric Risk of Mortality III (PRISM-III) score.
- Serum albumin levels were measured within 24 hours of PICU admission, and outcomes such as mortality and length of stay were recorded.
Main Results:
- The incidence of hypoalbuminemia (serum albumin ≤3.7 g/dL) was 26%, associated with significantly higher mortality (42.3% vs 17.6%).
- Each unit increase in serum albumin decreased mortality risk by 28.9% (OR, 0.289; P=0.001).
- Combining serum albumin with the PRISM-III score improved mortality prediction (AUC, 0.802) compared to either alone (AUC, 0.738 for albumin).
Conclusions:
- Admission hypoalbuminemia is a significant predictor of mortality in the PICU.
- Serum albumin is a valuable prognostic marker in critically ill children.
- Further research is recommended to validate the addition of serum albumin to existing scoring systems like PRISM-III for enhanced mortality prediction.
Objective:
The aim of this study was to assess serum albumin level on admission to the pediatric intensive care unit (PICU) as a prognostic indicator.
Methods:
A prospective study was conducted in Fayoum University Children's Hospital. The study subjects' demographics and clinical and laboratory data were recorded. Pediatric Risk of Mortality III (PRISM-III) score was calculated. Serum albumin level was assessed within 24 hours from admission. Outcomes included mortality, PICU and hospital stay, need and duration of mechanical ventilation, and inotrope use.
Results:
The incidence of admission hypoalbuminemia was 26%. The study subjects had a significantly higher mortality rate than subjects with normal albumin levels (42.3% vs 17.6%, respectively, P = 0.011). Each unit of increase in serum albumin decreased the risk of mortality by 28.9% (odds ratio, 0.289; confidence interval, 0.136-0.615, P = 0.001). Serum albumin showed a fair discriminatory power (area under the curve, 0.738). At a cutoff point of ≤3.7 g/dL, albumin had a 79.2% sensitivity, 67.1% specificity, 43.2% positive predictive value, and 91.1% negative predictive value. Incorporation of serum albumin with PRISM-III score was more predictive of mortality than either predictors alone (area under the curve, 0.802). No significant difference was found between the 2 groups regarding either PICU and hospital stay as well as the need and duration of ventilation.
Conclusions:
In PICUs, admission hypoalbuminemia is a good predictor of mortality. Further studies to confirm the value of adding serum albumin to PRISM-III score are recommended.
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