Brain Injury
Rehabilitation Unit Liverpool Hospital
Brain Injury
Rehabilitation Directorate (BIRD) NSW Agency for
Clinical Innovation
1.1
What is meant by the term "traumatic
brain injury"? People with TBI Q in the heading indicates there are self test questions/brainstorm on the page
i) What is
ABI? TBI?
ii) Graphic:
What is TBI?
iii) What is TBI?
iv) Video:
Gabby has a TBI Q
v) Video:
Andrew has a TB I Q
Traumatic
brain injury
Traumatic brain
injury (TBI) is one form of acquired brain injury (ABI).
Acquired
brain injury
The Australian National Policy on Services for People with Acquired
Brain Injury defines ABI as:
“ an
injury to the brain which results in deterioration in cognitive,
physical, emotional or independent functioning...these
impairments to cognitive abilities or physical functioning may
be either temporary
or permanent and cause partial or total disability or psychosocial
maladjustment.” (Department of Human Services and
Health, 1994)
There
are a number of common causes of ABI::
Traumatic
brain injury -
Traumatic brain injury occurs as the result of some external force
being applied to the brain
Stroke -
Stroke usually occurs as the result of a haemorrhage or blockage to
the blood vessels that supply blood to the various
regions of the brain
Hypoxia/anoxia -
Hypoxia/anoxia refers to the reduced or complete stopping of the
flow
of oxygen to the brain leading to tissue damage,
and can be caused by failed hangings, near drowning, or overdoses
Infection -
Bacterial or viral infections can lead to an inflammation of the
brain
covering (meningitis) or the brain tissue
itself (encephalitis)
Tumour -
Tumours cause damage to the surrounding brain tissue and structures
as they grow within the brain
Toxins -
Alcohol acts as a toxin and the long term misuse of alcohol can cause
damage to brain tissue.
Degenerative
neurological diseases -
Conditions including Huntingdon’s disease, Parkinson’s
disease, and Alzheimer’s disease are
caused by abnormal changes to brain cells in particular
regions of the brain
People with TBI
Watching the videos throughout these modules is essential:
Watch the videos of Gabby and Andrew.
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Click on the "Brain" to click through the screens.
On Screen C Roll over different from Disease, Ageing, Intellectual disability, Mental illness for extra information.
Traumatic brain injury
Traumatic brain injury occurs as the result of some external force being applied to the brain in an accident or trauma. As a result of this blow or rapid movement, the brain may be torn, stretched, penetrated, bruised or become swollen. Oxygen may not be able to get through to brain cells and there may be bleeding.
The common mechanisms of TBI include:
Acceleration/ Deceleration injuries: Refers to injuries in which the head is in motion and then abruptly comes to a halt. For example, if a car hits a tree, the car suddenly stops, and the driver's head hits the steering wheel. The brain within the skull still has forward momentum and can hit the inner surface of the skull (which has bony edges) with some force, causing bruising, lacerations and bleeding.
Diffuse axonal injury: The twisting motions or sudden changes in momentum that accompany some accidents may cause the bundles of nerve fibres to be stretched or shear. The term closed head injury is often used to describe this type of TBI, because the damage to the brain occurs as the result of these internal mechanisms, but usually with the skull remaining intact.
Penetrating injuries: This describes cases where some external object pierces the skull and comes in direct contact with the brain, thereby causing a TBI.
Other causes of brain trauma include falls, blows to the head, crushing injuries, electric shocks/ lightning strikes, and whiplash or violent shaking.
Traumatic brain
injury is different from intellectual disability and psychiatric illness.
Intellectual disabilities are congenital disabilities a person is born
with, whereas TBI is acquired at a later stage of life, prior to which
the brain functioned normally.
Psychiatric illness
is due to a patient's brain malfunctioning, possibly due to chemical
imbalances. It is not caused by traumatic head injury, and is not the
result of physical damage to the brain.
Gabby has an TBI (3.5 mins)
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Watch a short story of her on video.
Answer these questions
What is one of the significant impairments the injury to the brain caused?
Are her impairments likely to be permanent or temporary
Check your answers here
What is one of the significant impairments the injury to the brain caused?
Are her impairments likely to be permanent or temporary?
Andrew has an ABI (4 mins)
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Click on the image to go to the video player. The video may take a few moments to load.
Watch Andrew's story on video.
Answer these questions
What is one of the impairments the injury to the brain caused?
Are the impairments likely to be permanent or temporary?
Check your answers here
What is one of the impairments the injury to the brain caused?
Are the impairments likely to be permanent or temporary?