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Published on: January 20, 2023
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.
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.
Abstract:
Abusive head trauma (AHT) is a leading cause of death in infants and toddlers. The objective of this study was to conduct an age-stratified comparison between children with AHT and accidental Traumatic brain injury TBI (aTBI) in the Approaches and Decisions in Acute Pediatric Traumatic Brain Injury (ADAPT) data. Children with severe TBI and an intracranial pressure monitor placed at a study site in the United States were enrolled from February 1, 2014, to September 31, 2017, and subjects <5 years of age and admitted to a US site were selected for analysis. Subjects were stratified by mechanism ('definite' or 'probable' concern for AHT classified as AHT; 'possible' or 'no' concern for AHT as aTBI) and age (<1 year, 1-2.9-years-, 3-4.9-years). Clinical data including epidemiological, clinical events, and imaging that occurred before monitor placement were compared. Of the 313 subjects (n = 111 AHT), apnea, seizures, and bilateral fixed pupils were more frequently observed in AHT (35.1% vs. 21.8%, p = 0.01; 43.2% vs. 20.8, p < 0.001; 31.5% vs. 15.8%, p = 0.008). Subdural hemorrhages, midline shift, and ischemia were more frequently observed in AHT (96.4% vs. 73.1%, p < 0.001; 54.1% vs. 35.0%, p = 0.001; 40.9% vs. 12.2%, p < 0.001) while contusion, subarachnoid hemorrhage and diffuse axonal injury were less frequently observed (20.2% vs. 49.7%; 38.5% vs. 58.4%; 3.7% vs. 20.8%, all p < 0.001). Among the patients <1 year-old, there was no difference in apnea and seizures between AHT and aTBI (40.6% vs. 34.3%, p = 0.53; 44.9% vs. 40.0%, p = 0.63) while ischemia was more commonly observed in AHT (47.1% vs. 20.0%, p < 0.001). AHT subjects exhibited unique clinical characteristics and radiological findings compared to aTBI, even after this age-stratified comparison. Further study is needed on the effects of both guidelines-based and novel therapies for this vulnerable and unique patient population.
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