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Published on: September 21, 2017
Head injury depth as an indicator of causes and mechanisms
Kent P Hymel1, Michael A Stoiko, Bruce E Herman
1Dartmouth-Hitchcock Medical Center, Department of Pediatrics, One Medical Center Dr, Lebanon, NH 03756-0001, USA. kphymel@gmail.com
Insights
Head injury depth in children under 3 years old correlates with causes and severity. Deeper injuries, especially subcortical, indicate abuse, severe trauma, and poorer neurodevelopmental outcomes.
Area of Science:
- Pediatric Traumatology
- Neurodevelopmental Pediatrics
- Child Abuse Pediatrics
Background:
- Acute cranial injuries in young children (<36 months) present diverse causes, mechanisms, and outcomes.
- Understanding the relationship between injury depth and these factors is crucial for accurate diagnosis and management.
Purpose of the Study:
- To measure differences in causes, mechanisms, clinical presentations, injuries, and outcomes of acute cranial injuries in children under 36 months based on injury depth.
- To establish head injury depth as an indicator of injury characteristics in young children.
Main Methods:
- Hospitalized children (<36 months) with acute head trauma were enrolled across multiple sites.
- Clinical and imaging data were collected, caregivers interviewed, and neurodevelopmental evaluations performed at 6 months post-injury.
- Head trauma causes were categorized, and subjects grouped by greatest injury depth for comparison.
Main Results:
- Subcortical injuries were significantly associated with abuse (OR: 35.6), inertial mechanisms (P < .001), and acute respiratory/circulatory compromise (ORs: 43.9, 60.0).
- Deeper injuries correlated with acute encephalopathy (OR: 28.5), prolonged consciousness impairment (OR: 8.4), interhemispheric subdural hemorrhage (OR: 10.1), and bilateral brain hypoxia/ischemia/swelling (OR: 241.6).
- Children with deeper injuries showed significantly lower Mental Developmental Index (P = .006) and Gross Motor Quotient (P < .001) scores at 6 months.
Conclusions:
- Head injury depth is a valuable indicator for determining the causes and mechanisms of acute cranial injuries in children under 3 years.
- This finding aids in identifying high-risk injuries and predicting neurodevelopmental trajectories in pediatric head trauma.
Objective:
The goal was to measure differences in the causes, mechanisms, acute clinical presentations, injuries, and outcomes of children <36 months of age with varying "greatest depths" of acute cranial injury.
Methods:
Children <36 months of age who were hospitalized with acute head trauma were recruited at multiple sites. Clinical and imaging data were collected, and caregivers underwent scripted interviews. Neurodevelopmental evaluations were completed 6 months after injury. Head trauma causes were categorized independently, and subject groups with varying greatest depths of injury were compared.
Results:
Fifty-four subjects were enrolled at 9 sites. Twenty-seven subjects underwent follow-up neurodevelopmental assessments 6 months after injury. Greatest depth of visible injury was categorized as scalp, skull, or epidural for 20 subjects, subarachnoid or subdural for 13, cortical for 10, and subcortical for 11. Compared with subjects with more-superficial injuries, subjects with subcortical injuries more frequently had been abused (odds ratio [OR]: 35.6; P < .001), more frequently demonstrated inertial injuries (P < .001), more frequently manifested acute respiratory (OR: 43.9; P < .001) and/or circulatory (OR: 60.0; P < .001) compromise, acute encephalopathy (OR: 28.5; P = .003), prolonged impairments of consciousness (OR: 8.4; P = .002), interhemispheric subdural hemorrhage (OR: 10.1; P = .019), and bilateral brain hypoxia, ischemia, or swelling (OR: 241.6; P < .001), and had lower Mental Developmental Index (P = .006) and Gross Motor Quotient (P < .001) scores 6 months after injury.
Conclusion:
For children <3 years of age, head injury depth is a useful indicator of injury causes and mechanisms.
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