Prognostic value of brain injury biomarkers in acute encephalitis/encephalopathy

Area of Science:

• Pediatric Neurology
• Neuroscience
• Biomarker Discovery

Background:

• Acute encephalitis/encephalopathy (AEE) is a severe condition in children, often leading to significant neurodevelopmental issues or death.
• Predicting outcomes in pediatric AEE is crucial for timely intervention and management.
• Bedside point-of-care testing for ongoing brain injury is highly desirable.

Purpose of the Study:

• To evaluate the potential of specific brain injury markers in cerebrospinal fluid (CSF) to predict outcomes in children with AEE.
• To compare the predictive accuracy of S-100B, glial fibrillary acidic protein (GFAP), and tau protein levels in CSF for AEE outcomes.

Main Methods:

• CSF samples were collected from children diagnosed with AEE and controls.
• Three groups were analyzed: non-AEE controls, AEE with mild sequelae, and AEE with severe sequelae or death.
• Levels of S-100B, GFAP, and tau protein were measured in early CSF samples.

Main Results:

• All three markers (S-100B, GFAP, tau) were significantly elevated in children with AEE and poor outcomes compared to controls and those with mild sequelae.
• A scoring system combining S-100B and tau levels achieved 100% accuracy in identifying poor outcomes in pediatric AEE patients.
• Individual markers also showed significant predictive accuracy, with S-100B at 91% and tau at 78% for poor outcomes.

Conclusions:

• Combined measurement of S-100B and tau in CSF shows strong promise for predicting clinical outcomes in children with AEE.
• These biomarkers may facilitate early identification of children at risk for severe sequelae or death from AEE.
• Scoring assessments based on these CSF markers could become valuable tools for bedside prognostication in pediatric neurology.