Observational retrospective study that included all patients meeting the inclusion criteria from 1st January 2014 to 31st December 2015.

The objective of the study is to describe and compare two populations of patients with severe traumatic head injury arriving under sedation in the Department in whom the sedation was not continued.

Inclusion Criteria:

- Patients with traumatic head injuring arriving in the Neurosurgery and Traumatologic Intensive Care Unit under sedation

Exclusion Criteria:

• Brain death within the 48h following admission,
• Stroke leading to the traumatic head injury,
• Death within the 24h following admission,
• Patients not under sedation on admission to the unit,
• Non-sedated patients transferred directly to the operating theatre
• Traumatic brain injury in patients presenting chronic sub-dural haematoma,
• Continued sedation (> 15h) in the ICU.

Patients with traumatic head injury