Traumatic Brain Injury Flashcards
Alteration of brain function caused by exterior force
TBI
What gender is dominant in obtaining TBI?
Male> Female
What are the following accidents that causes TBI?
- Falls
- MVA
- Assaults
- Sports
What is the common accident in TBI?
Falls
An injury that happens when a moving force hits the head
Acceleration Injury
An injury that happens when moving head meets stationary object
Deceleration Injury
An injury that happens when the injury of the brain is on the site of impact
Coup Injury
An injury that happens when an injury of the brain is on the opposite site of the impact
Counter-coup Injury
Shearing of subcortical axons within the myelin sheath
Diffuse Axonal Injury (DAI)
(+) mechanical strain that leads to Wallerian Degeneration
DAI
A nerve lesion that has a retrograde degeneration of distal end of axon
Wallerian Degeneration
Usually caused by high velocity acceleration/deceleration forces
DAI
What is the other name for Cerebral COntusions
Cotrical Bruises
it results from a low velocity impacts
Cerebral Contusions
What type of injury are commonly associated with Cerebral Contusions?
Coup and Counter-coup Injury
What are the site affected when the pt. had Cerebral Contusions?
(FITA)
inferior frontal
anterior temporal
A secondary brain injury that happen due to decreased oxygen and blood supply to the brain, tissue undergoes death and infraction
Hypoxic-Ischemic Injury
What are the causes of Hypoxic-Ischemic Injury?
(SAD)
- Systemic Hypotension
- Anoxia
- Damage to vascular territories
If the ICP level of the pt. increases, what will happen?
- Normal Pressure Hydrocephalus
- brain Herniations
- Papilledema
Also known as bulging of the eyes
Papilledema
What are the Hakim’s Triad?
(Brady-Brady-Hyper)
- Bradycardia
- Bradypnea
- Hypertension
A secondary brain injury that one of its signs is (+) Cushing Sign
Increased Intracranial Pressure
What structure is affected during Uncal Herniation?
Uncus of the temporal lobe, white matter
What are the affected structures in Uncal herniation?
(CROP)
- C- Cerebral Penducle
- R- Reticular Activating System
- O- Optic Nerve
- P- PCA
Herniation that affects the Diencephalon / part of temporal lobe
Central Herniation
What are the affected structures in Central Herniation?
(PMR)
- PM- Pons and Midbrain
- R- RAS
Herniation that is (+) for decerebrate posture
Central Herniation
Adult form of hydrocephalus
Normal Pressure Hydrocephalus
Normal Pressure Hydrocephalus is a _________ type of reabsorption of CSF in the arachnoid villi
Communicating