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Published on: November 3, 2016
Cerebral complications of nonaccidental head injury in childhood
1Department of Pediatrics and Neurology, Ohio State University, Children's Hospital, Columbus 43205, USA.
Insights
Nonaccidental head injury (NAHI) in children often leads to poor outcomes, including cerebral infarction. Age significantly impacts injury patterns and response, with younger children showing diffuse damage and older children focal damage.
Area of Science:
- Pediatric Neurology
- Neuroradiology
- Forensic Pathology
Background:
- Nonaccidental head injury (NAHI) is a significant cause of pediatric morbidity and mortality.
- Understanding the patterns of cerebral injury is crucial for diagnosis and predicting outcomes.
- Previous studies have not fully detailed the specific patterns of parenchymal damage and their age-related variations in NAHI.
Purpose of the Study:
- To evaluate the patterns of cerebral parenchymal injury in children with confirmed NAHI.
- To investigate the relationship between these injury patterns and outcome morbidity.
- To identify potential age-dependent differences in postinjury response cascades.
Main Methods:
- Retrospective study of 14 children with confirmed NAHI.
- Initial CT imaging was used to categorize injuries into diffuse or focal cerebral hypoattenuation groups.
- Clinical data, including age, Children's Coma Score, and follow-up, were analyzed.
Main Results:
- All patients presented with acute subdural hematoma.
- Two distinct groups emerged: diffuse (younger children, mean age 5 months) and focal (older children, mean age 19 months) hypoattenuation (P < 0.01).
- Poor outcomes were common, with cerebral infarction in all survivors, including hemispheric necrosis and arterial/borderzone infarctions. Early posttraumatic seizures occurred in 79%.
Conclusions:
- NAHI results in severe cerebral parenchymal injury with poor outcomes.
- Significant age-dependent differences exist in injury patterns following NAHI.
- This study highlights the diverse infarction patterns and age-related responses in pediatric NAHI.
Abstract:
Patterns of cerebral parenchymal injury and their relationship to outcome morbidity are evaluated in this retrospective study of 14 children with confirmed nonaccidental head injury (NAHI). The mean age at time of injury was 12 months 6 days, mean Children's Coma Score was 5.36, and mean postinjury follow-up was 17 months 12 days. All patients had acute subdural hematoma (interhemispheric or convexity) on initial CT imaging. Two major groups of children were identified from initial CT scans; those with diffuse cerebral hypoattenuation (n = 7) and those with focal cerebral hypoattenuation (n = 7). The two groups differed significantly by age (diffuse group, mean age 5 months 9 days +/- 36 days; focal group, mean age 19 months 3 days +/- 6 months 9 days; P < 0.01) and ultimate type and extent of parenchymal damage. Outcome was generally poor in both groups (mean Children's Outcome Score of III/IV). Cerebral infarction developed in all survivors. Most common were hemispheric necrosis after hemispheric swelling subjacent to an ipsilateral convexity acute subdural hematoma (n = 5); distribution of the posterior cerebral artery (n = 4) or callosomarginal branch of the anterior cerebral artery (n = 4); and borderzone infarctions (n = 4). Of 14 children, 11 (79%) had early posttraumatic seizures (EPTS). Clinical progression of symptoms was confirmed in nine patients (mean Childrens Coma Score was 4.0 +/- 0.33). None had a lucid interval. This is the first study using strict inclusion criteria that documents the range of infarction patterns and potential age-dependent differences in postinjury response cascades after nonaccidental head injury.
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