Precision in pediatrics: validating the infant scalp score for TBI detection

Area of Science:

• Pediatric Emergency Medicine
• Neurotrauma
• Diagnostic Accuracy

Background:

• Traumatic Brain Injury (TBI) is a frequent cause of pediatric emergency visits, but intracranial injury is rare.
• Clinical judgment and institutional protocols guide CT scan decisions in children with head trauma.
• The Infant Scalp Score (ISS) was developed to assess TBI risk in infants.

Purpose of the Study:

• To evaluate the Infant Scalp Score (ISS) as a predictor of clinically significant TBI (ciTBI) in children under two.
• To assess the role of ISS in guiding CT scan decisions for pediatric head trauma.
• To determine optimal ISS cut-offs for predicting ciTBI.

Main Methods:

• Prospective, observational study of 161 pediatric head trauma cases.
• ISS calculated based on age, hematoma size (small, medium, large), and location.
• Statistical modeling, including ROC curve analysis, used to assess ISS predictive performance and associations with CT findings.

Main Results:

• Of 124 children who underwent CT, 25 (20.2%) had TBI, with 7 (4.34%) meeting ciTBI criteria.
• Hematomas ≥3 cm were significantly associated with higher TBI risk (OR=3.67, p=0.02).
• ISS ≥7 demonstrated strong predictive power for ciTBI (AUC=0.89, 95% CI: 0.72-0.94, p=0.04).

Conclusions:

• The Infant Scalp Score (ISS) demonstrates strong diagnostic accuracy in predicting TBI in children under two.
• An ISS of 7 or higher is a reliable cut-off for identifying children at risk of ciTBI.
• ISS is a valuable tool for guiding CT scan decisions, potentially reducing unnecessary radiation exposure in pediatric head trauma management.