Applicability of the Canadian CT Head Rule in Minimal Head Injury

We applaud Davey et al1 for their study describing their use of the Canadian CT Head Rule with patients with minimal head injury. They generated interesting hypotheses in regard to this subgroup of patients (who do not experience loss of consciousness or transient confusion) compared with patients with minor head injury (who do). Although the authors acknowledged a number of study limitations, some were not taken into consideration, and questions remain.

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