====== Mild traumatic brain injury definition ======

see also [[traumatic brain injury definition]] 

The most frequently used [[definition]] of [[mild traumatic brain injury]] is a [[GCS]] score between 13-15 and loss of [[consciousness]] of less than 30 minutes or [[amnesia]] not extending beyond 24 hours after [[blunt]] [[head injury]]
((Teasdale G, Maas A, Lecky F, Manley G, Stocchetti N, Murray G. The Glasgow
Coma Scale at 40 years: standing the test of time. Lancet Neurol. 2014
Aug;13(8):844-54. doi: 10.1016/S1474-4422(14)70120-6. Review. Erratum in: Lancet 
Neurol. 2014 Sep;13(9):863. PubMed PMID: 25030516.
)).

Traditionally, mild head injury has been defined as GCS ≥ 13. However, the increased frequency of both surgical lesions and CT scan abnormalities in patients with GCS=13 suggests that they would be better classified with moderate rather than mild head injuries
((Stein SC, Ross SE. The Value of Computed Tomo- graphic Scans in Patients with Low-Risk Head Inju- ries. Neurosurgery. 1990; 26:638–640)).