Table 1 Comparison of clinical variables collected and those included in SNC guideline
Clinical variables collected | SNC head CT guideline [19] |
|---|---|
Post-traumatic seizure | Post-traumatic seizure |
Age | Age ≥65 years |
Vomiting, number of times | Vomiting ≥2 times |
Glasgow Coma Scale score | Glasgow Coma Scale score |
Suspected open skull fracture | Clinical signs of depressed skull fracture |
Signs of basilar skull fracture | Clinical signs of basilar skull fracture |
Diplopia, paralysis | Focal neurologic deficit |
All current neurologic conditions, including hydrocephalus | Shunt-treated hydrocephalus |
prothrombin ratio and international normalized ratio, not collected | Coagulation disorders |
All current medications including antiplatelet and anticoagulants | Antiplatelet medication |
Therapeutic anticoagulation | |
Loss of consciousness | Suspected or confirmed loss of consciousness |
All extracranial injuries | Significant extracerebral injury |
S100B levels | S100B ≤0.10 μg/L |