traumatic brain injury
Also written as: TBI — traumatic brain injury
Acquired brain injury resulting from external mechanical force causing temporary or permanent neurological dysfunction.
Full Definition
An acquired injury to the brain caused by external physical force resulting in total or partial functional disability or psychosocial impairment. TBI encompasses a spectrum of severity from mild concussion to severe brain injury with prolonged unconsciousness. The injury mechanism may involve direct impact, acceleration-deceleration forces, or penetrating trauma. Assessment includes neurological examination, imaging studies, and monitoring of intracranial pressure when indicated.
Usage
Usage note: TBI is widely accepted abbreviation; specify severity (mild, moderate, severe) when known.
In Context
- "The patient sustained severe traumatic brain injury with midline shift requiring emergent craniotomy." — Neurosurgical consultation
- "Mild traumatic brain injury accounted for 75% of all TBI cases in the registry." — Epidemiological study