Severe Pediatric Traumatic Brain Injury Presenting Characteristics: Abusive Versus Accidental Trauma

Caitlin R McNamara1, Rachel P Berger2, James F Luther3

  • 1Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.

Journal of Neurotrauma
|August 13, 2025
PubMed

Insights

Abusive head trauma (AHT) in children presents distinct clinical and imaging findings compared to accidental traumatic brain injury (aTBI). This age-stratified analysis reveals key differences in symptoms and injury patterns, crucial for accurate diagnosis in pediatric cases.

Area of Science:

  • Pediatric Traumatology
  • Neurocritical Care
  • Forensic Medicine

Background:

  • Abusive head trauma (AHT) is a significant cause of mortality and severe morbidity in infants and young children.
  • Distinguishing AHT from accidental traumatic brain injury (aTBI) is critical for appropriate medical management and legal/social interventions.
  • Previous studies have identified differences, but age-stratified comparisons are essential due to developmental variations in young children.

Purpose of the Study:

  • To perform an age-stratified comparison of clinical and radiological findings between AHT and aTBI in children under 5 years old.
  • To identify unique characteristics of AHT that differentiate it from aTBI across different pediatric age groups (<1, 1-2.9, and 3-4.9 years).
  • To analyze data from the Approaches and Decisions in Acute Pediatric Traumatic Brain Injury (ADAPT) study.

Main Methods:

  • Retrospective analysis of severe traumatic brain injury (TBI) cases from the ADAPT database (February 2014 - September 2017).
  • Inclusion criteria: subjects <5 years old admitted to a US study site with an intracranial pressure monitor.
  • Stratification by mechanism of injury (AHT vs. aTBI) and age groups. Comparison of epidemiological data, clinical events, and imaging findings prior to monitor placement.

Main Results:

  • AHT cases showed higher frequencies of apnea, seizures, and bilateral fixed pupils compared to aTBI.
  • Radiological findings more common in AHT included subdural hemorrhages, midline shift, and ischemia; contusion, subarachnoid hemorrhage, and diffuse axonal injury were less frequent.
  • In infants <1 year, apnea and seizures did not differ, but ischemia was more prevalent in AHT.

Conclusions:

  • Abusive head trauma exhibits distinct clinical and radiological signatures compared to accidental TBI, even when stratified by age.
  • Specific findings like subdural hemorrhages and ischemia are key indicators, though some symptoms like apnea and seizures may not differ in the youngest infants.
  • Further research is warranted to optimize therapies for this vulnerable pediatric population.

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