Traumatic Injury to the Central Nervous System: Brain Injury Flashcards
What happens in Rotational Injuries?
skull rotates as brain remains stationary.
Angular forces on the brain and resuls in either focal or diffuse brain damage.
What is a concussion characterized by?
Altered awareness and loss of memory immediately after traumatic incident.
obvious pathologic brain changes may be absent on imaging
What are some behavioral changes of a concussion
- tiredness
- mre distracted as a child
- irritable
- extra clingy to parent
- distrubance in sleep
how long do symptoms last for a concussion
Days to a few months are very typical
*Children may take longer than adults to recover after concussion
What are examples of primary brain damage
- Contusion
- Skull Fractures
- Intracranial Hemorrhages
- Diffuse Axonal Injury
What is a contusion
bruising of the crests of gyri in the cerebral hemispheres; occurs following blunt trauma
-Usually in frontal/temporal lobes
What is skull fractures
seen in both closed head injuries and open, compound head injuries
What is intracranial hemorrhages (2 types)
- Extradural (epidural): occur due to a tearing of an artery in the brain
- Intradural: subdural and Inracerebral and result from trauma or rupture of a congenital vascular abnormality
What is Diffuse Axonal Injury
- not seen on imaging
- usually occurs with rotational injury within cranial vault-
- present with more severe symptoms than othe orms of TBI
What are examples of Secondary Brain Damage
- Cerebral Edema
- Intracranial Pressure increases
- Herniation syndromes
- Hypoxic-Ischemic INjury
- Neurochemical Events
What is the most frequently occuring secondary brain damage from trauma
Cerebral Edema
How do infants accomodate from increased intracranial pressure
- You see swelling in head bc head isn’t fully set
- sutures aren’t fully formed
- seen more in the frontal lobe
Result of herniation syndromes
Result from displacement of brain by expanding lesion and cerebral edema
Neurochemical Events
Oxygen free radicals are released, causing damage
What are other consequences from brain damage
Hydrocephalus
Seizures
Infections
Endocrine Disorders
What is the #1 predictor of the timeline of recovery of injury
DEPENDS! haha
#1 predictor is length of the coma (unconscious state)
-Most recovery is in first few months but can take up to 3 years
What are 3 examples of Coma Scales
Glasgow Coma Scales
Children’s Coma Scale (
What is an assessment for orientation and amnesia
Children’s Orientation and Amnesia Test (COAT) –reliable for ages 4-15
What is the duration of post-traumatic amnesia (PTA)
higher predictive factor of future memory function than coma scales
What is the Rancho Los Amigos Levels of Cognitive Functioning
descriptive scale of cognitive and behavioral functioning
The Limitation: “phase of recovery” and prediction of discharge functional ratings is often poorly related
Describe the Glasgow Coma Scale
Standarized for assessing neurologic status of a trauma
Based on patient’s best response to : MOTOR ACTIVITY, VERBAL RESPONSE, AND EYE OPENING
What is the mobility capabilities for an injury at C1-C4?
- sipping or blowing to independently control power wheelchair, power tilt mechanism and environmental controls
What is the transfer ability for a C1-C4 injury?
dependent for all transfers
What is the capability for a C1-C4 injury in doing their ADLs?
dependent for dressing, bathing, and bowel/bladder management
What is the mobility capabilities for an injury at C5?
- addition of biceps and deltoids
- can propel a manual wheelchair with hand rims for short distances on level surfaces
What is the transfer ability for a C5 injury?
- able to assist with transfers and bed mobility
What ability does a C5 injury in doing their ADLs?
able to assist with feeding, grooming with adaptive equipment and set up; dependent for dressing and bathing
What is the mobility capabilities for an injury at C6?
- addition of pectoralis
- able to independently use manual wheelchair with projections on the hand rims
What is the transfer ability for a C6 injury?
assists with sliding board transfers