Traumatic Brain Injury Flashcards
(73 cards)
what is traumatic brain injury caused by? (8)
- falls
- road traffic accidents
- violence/ aggression/ crime
- concussion
- skull fracture
- cerebral laceration
- hematomes
- haemorrhages
how many people are affected annually in the world by TBI?
- 10 million people are affected annually by TMI
how many people in the UK attend A&E with head injuries?
- 900,000
how many people are admitted to hospital each year in the UK with TBI?
- 160,000 people
who is TBI more prevalent in?
- more prevalent in men compared to women
what is brain injury caused by? (5)
- external force
- head impact
- blunt trauma
- penetrating injuries
- blast injuries
what does TBI vary in?
- varies in severity
how is TBI classified? (3)
- classified by type, severity injury and physiological response to injury
how can TBI be classified by clinical severity? what are the two things its based on?
- classified as mild, moderate or serve based on neurobehavioral deficits and advanced imaging findings after the injury
what is concussion interchangeable with?
- interchangeable with mild TBI
what is TBI severity generally classified based on? (2)
- based on clinical criteria that assess the depth of impaired consciousness and neurological functioning
what are the most common metrics used for TBI classification? (3)
- glasglow coma scale
- duration of loss of consciousness
- length of post- traumatic amnesia
what does the score of glasglow coma scale mean?
- score closer to 15 means higher alertness whereas 0 means the individual is on a worsened condition
what is mild TBI duration of LOC?
- less than 30 minutes
what is the moderate TBI duration of LOC?
- LOC for 30 minutes to 24 hours
what is the severe TBI duration of LOC?
- LOC for more than 24 hours
what is PTA?
- post traumatic amnesia
what is post traumatic amnesia?
- refers to the time after the injury during which the patient cannot form continuous day- to- day memories
what is mild TBI length of PTA?
- PTA less than 1 hour
what is the moderate TBI length of PTA?
- PTA for 1 to 24 hours
what is the severe TBI length of PTA?
- for more than 24 hours
what is the primary damage of TBI? (6)
- contusion
- epidural haematoma or haemorrhages
- subdural hematoma
- diffuse axonal injuries
- penetrating injuries
- blast injuries
what is the secondary damage/ insults of TBI? (6)
- increased intracranial pressure
- cerebral hypoxia or ischemia
- intracranial haemorrhage
- electrolyte and acid- base imbalance
- infection
- seizures from pressure of scarring
what are the four disorders of consciousness?
- coma
- vegetative state
- minimally conscious state
- post- traumatic confusion or clouding of consciousness