|
|
| Line 1: |
Line 1: |
| ==Canadian CT Head Rule==
| | #Redirect:[[Head CT (Clinical Decision Rules)]] |
| Not applicable for non-trauma, GCS<13, Age <16, Bleeding disorder or on anti-coagulation (e.g. Coumaidn, Debigatran), Obvious open skull fracture.
| |
| ===If ANY High Risk factor present – then get a CT Head ===
| |
| # Age >65 years | |
| #Suspected Open or Depressed skull fracture
| |
| #Signs suggesting Basal skull fracture
| |
| ## Hemotympanum
| |
| ## Racoon eyes
| |
| ##CSF otorrhea or rhinorrhea
| |
| ##Battle sign
| |
| #Vomiting > 2 times
| |
| #GCS <15 at 2 hours post injury
| |
| | |
| ===If ANY Medium Risk factor present – then get a CT Head===
| |
| # Amnesia before impact >30min
| |
| #Dangerous mechanism
| |
| ##Pedestrian struck by vehicle
| |
| ##Ejection from motor vehicle
| |
| ##Fall from elevation >3 feet or 5 stairs
| |
| | |
| ==Canadian rule vs. New Orleans vs. Nexus II rules==
| |
| Comparison done to evaluate Sensitivity and Specificity for clinically important intracranial injuries
| |
| ===Sensitivity===
| |
| Canadian 99% vs [[Head CT (New Orleans rule)|New Orleans]] 99% vs. Nexus II 97%
| |
| ===Specificity===
| |
| Canadian 47% vs. New Orleans 33% vs. Nexus II 47%
| |
| | |
| ==Source==
| |
| #Ann of Emerg Med 2009; 53, 2:180-188.
| |
| #http://www.ohri.ca/emerg/cdr/cthead.html
| |
| [[Category:Trauma]]
| |
| [[Category:Neuro]]
| |
| [[Category:Rads]]
| |
