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Canadian CT Head Rule

Procedure: 1) major criteria - Glasgow coma scale < 15 2 hours after injury - suspected open or depressed skull fracture - sign of basilar skull fracture - hemotympanum, 'racoon eyes' Battle's sign, CSF rhinorrhea - vomiting more than once - age >= 65 2) minor criteria - retrograde amnesia >= 30 minutes after injury - dangerous mechanism of injury* * pedestrian struck by motor vehicle * occupant ejected from motor vehicle * Fall from > 3 feet or > 5 stairs Clinical significance: - neuroimaging not necessary if all major & minor criteria are negative - neurosurgery consult if any positive major criteria

Related

head injury New Orleans/Charity Head Trauma/Injury Rule traumatic brain injury (TBI)

General

numerical rating scale (NRS)

References

  1. MD+CALC: Canadian CT Head Injury/Trauma Rule http://www.mdcalc.com/canadian-ct-head-injury-trauma-rule/
  2. Papa L et al. Performance of the Canadian CT Head Rule and the New Orleans Criteria for predicting any traumatic intracranial injury on computed tomography in a United States level I trauma center. Acad Emerg Med 2012 Jan; 19:2. PMID: 22251188