Objective: We investigated the accuracy of parental reports of infant trauma history.
Methods: We retrospectively reviewed 166 infants from 3 tertiary institutions in Japan that had suffered a traumatic intracranial hemorrhage between 2002 and 2013. The infants were classified into 3 groups based on the parents' report of the mechanism of injury: the low-risk group consisted of injuries sustained from falling off a height below 3 ft. (n=84); the middle-to-high-risk group comprised other mechanisms of injury (n=54); and the unknown-risk group consisted of unknown mechanisms of injury (n=28). The severity, neurological outcomes, clinical features, and evaluation for abuse were compared among these 3 groups.
Results: Infants in the low-risk group had a higher severity, a worse neurological outcome, and a higher percentage of household injuries, retinal hemorrhage, subdural hematoma, and subdural hematoma suggestive of abusive head trauma (AHT) than those in the middle-to-high-risk group (P<.05). Infants in the unknown-risk group had the highest severity and the worst neurological outcomes, and a higher rate of features suggestive of AHT (P<.05).
Conclusions: The accuracy of the history obtained from the caregivers of infants may be low in severe infantile head trauma. Therefore, medical professionals should treat the mechanism of injury obtained from caregivers as secondary information and investigate for possible AHT in cases with inconsistencies between the history that was taken and the severity of the injury observed.
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