All remaining lectures - except cognition not included Flashcards
some of the biggest challenges with working with pts with TBI is
permanent cognitive and behavior issues, emotional state, mood changes, communication
what does walking wounded mean
their motor function and physical states are ok, but cognitively and behaviorly they are not (TBI)
top 2 causes of TBI
transportation (ex: car, boat, plane)
falls
1 cause of TBI for pts 75 and up
falls
gunshot wound, stabbing, or skull fx would be an ex of what type of TBI
open
skull fx is an ___ TBI
open
___TBI’s result from acceleration or deceleration forces
closed
what is coup countercoup
closed TBI,
Coup injury: brain hitting front part of skul
lContracoup: brain hits front part then suboccipital region (axon shearing occurs)
not skull, but rather the brain itself….what part of the brain is effected in coup coutner coup
anterio-inferior temporal lobes and prefrontal cortex
4 classifications of TBI
- focal
- diffuse
- hypoxic
- hematoma
what is a focal TBI
a local one, can cause local swelling or hematomas
cause a mass shifting effect (swelling, blood collection, smushing ventricles and brain tissue)
what does DAI mean
diffuse axonal injury
FOCAL hematomas cause
a mass shifting effect (swelling, blood collection, smushing ventricles and brain tissue)
explain diffuse TBI
Shearing and retraction of axons
Can cause coma = poorer outcome
why is a diffuse TBI often a problem to dx
DAI may or may not show up on imaging! (there is just edema, no collection of blood)
this type of TBI is often caused by drowning, it is
Due to systemic hypotension, anoxia, vascular damage
Can lead to global damage
hypoxic, aka ischemic
3 main types of hematomas (TBI classification)
epidural
subdural
intracranial
this type of hematoma is located btwn your skull and dura mater
epidural
this type of hematoma is often arterial – quick developing
epidural
with a(an) _______hematoma there is usually a period of normal function, and then quickly there is N/V and UMN sx
epidural
hematomas are classified according to
where the bld collects
elders that are on blood thinners that fall and hit their head are prone to ___ hematomas
subdural
subdural hematomas effect what type of BV
venous
Venous
Develop slowly, over time
UMN signs and confusion
which type of hematoma
subdural
main form of secondary damage from a TBI
increased ICP
seizures typically occur when after a TBI
Tend to occur immediately after injury and 6 mo – 2 years after
normal ICP
Normal ICP = 4 – 15 mm HG
imaging that is best for TBI
MRI (CT’s don’t show the bleeds very well)
other testing for TBI
neuropsychological/cognitive
standard testing measurment for tx of TBI (not imaging, ut rather an OM)
glascow coma scale
a score less than ___ on the gloscow is indicative of poor long term prognosis
8
The most commonly used scale for pts in or coming out of a coma = predictive of longterm functional outcome
glascow coma scale
glascow ratings
3 – 8 = severe brain injury
9 – 12 = moderate brain injury
13 – 15 = mild brain injury
less than 8 not great
3 components of glascow
eye
verbal
motor
another common OM for TBI
rachos los amigos
based off of assistance needed
ranchos levels 1-3
I: No Response. Deep sleep. (true coma) (doesn’t even respond to px) Unresponsive to any stimuli.
II:Generalized Response. Reacts inconsistently and nonpurposely in a nonspecific manner. (they don’t change with you if you mix things up)
Respsonses are limited and the same regardless of stimuli.
III
Localized Response. Reacts specifically but inconsistently. Responses relate to the stimuli presented.
May follow simple commands.
goals for pts in level 1-3 of ranchos
Increase level of alertness and arousal
Prevent secondary impairments
Improve motor control
Facilitate normal muscle tone
Increase tolerance of positions and activities
Educate family members- to help arouse the pt
Coordinate care among all team members and family
il
decerberate posture is what
ext of upper and ext of lower
decorticate posture is what
flexed upper, extended lower
what is the significance of decerberate or decorticate in regards to tx
we want to position them opp of what the pattern is
when doing any form of sensory stimulation, always document what
what type of stimulation you are using, how the pt responded
what types of pt response will you document with sensory stimulation
vitals, eye opening, grimacing, arousal, head turning
types of sensory stimuli
tactile, olfactory, auditory, vestibular, gustation, kinesthesia (ROM)
Heightened state of activity. Bizzare and nonpurposeful activity. Unable to cooperate with treatment. Verbalization often incoherent and/or inappropriate. POOR attention
this is what Ranchos level
4 -aggitated and confused
what to be mindful of with ranchos level 4
dont overstimulate them, they are aggitated and confused.
calm down their surroundings
goals for ranchos level 4
Prevent outbursts of agitation
Assist patient in controling behavior
Patient’s safety is assured (and that of therapists and family)
Family members understand what to expect at this phase (it’s typically temporary)
Maintain (or increase) physical activity tolerance
Prevent secondary impairments
Coordinate care among all team members and family
frustrating aspect of level 4 ranchos
they have no carry over of the session - no memory recall. always have to start over
often times, pts in level 4 ranchos have to be monitored how often
24/7 (they may have to be restrained)
level 5 ranchos is what
confused, inappropriate
explain level 5 ranchos - Confused inappropriate
Able to respond to simple commands fairly consistently.
With complex commands, responses are non purposeful.
Highly distractible and poor attention!
Impaired memory!
explain level 6 (ranchos) - Confused appropriate
Needs external direction to complete tasks.
Follows simple directions well and has some carryover.
goal differences with levels 5/6 compared to the others
these pts are often mobile, so keeping them safe as they get around is an issue
goals of levels 5/6 ranchos
Increase function, balance, and ADL performance
Improve motor control
Improve impairments (strength, ROM)
Patient’s safety is assured
Family members understand what to expect at this phase
Increase physical activity tolerance
Coordinate care among all team members and family
with pts with 5/6 ranchos, is blocked or random practice better
do blocked and give them lots of breaks. there is still cognitive issues
level 6 is called (ranchos)
confused appropriate
level 7 is called (ranchos)
automatic appropriate
level 8 is called (ranchos)
purposeful appropriate
robot like is what ranchos level
automatic appropriate (7)
only Ranchos level that observes and responds to changing env
8
4 components of UE function
Locate target
Reach
Grasp
Manipulate
locate target, as a component of UE function, requires what 2 things
vision
eye head coordination
opening of the hand occurs in what component of UE function
reach, it is called aperature
role of arm in reach is
place hand in position for function; transportation
role of hand in grasp
interact with the env
2 types of grip
power -whole hand
precision- fingers
manipulation component of UE function is considered ___ mvmt
fractionated, well coordinated (independently working fingers)
posture/stability is most important in what component of UE function
reach
the key to successful UE function
variability
visual neglect and visual extinction are issues with what component of UE function
locating target
visual neglect and extinction usually occur dt lesion on what side of braint
more often associated with R hemisphere strokes
eye-head or eye/head/hand coordiation issues that occur with locating a target component of UE function, usually are due to ___ or ___ issues
cerebellar
vestibular
problems with reach include
timing (slower)
coordination (cerebellar dysmetria)
decomposition (they flex shoulder 1st then ext elbow - normally these should occur together)
involuntary movement of hemiplegic limb when other limb moves (problem with UE reach)
global synkinesis
Due to B excitation of cortex and reduced inhibition of opposite hemisphere
stroke spacticity (in regards to UE function issue) correlates to _
correlates to movement time and amplitude, but NOT interlimb coordination measures. Interlimb is cerebellar only.
the lack of coordination after stroke is the same as the lack of coordination with cerebellar issues (T or F)
F
inability to reach in space despite intact motor function, vision, and somatosensation. leads to poor grasp and
Poor visual control of hand
optic ataxia - issue with reach
Slowed reach and grasp
Smaller max aperture
Longer time to max aperture
Increased variability in aperture and scaling
Slower and less accurate movements
Poorly modulated fingertip forces
Scaling
Reduced ability to fractionate movement
Stroke vs PD in regards to grasp issues, which group is stroke and which is PD
Slowed reach and grasp
Smaller max aperture
Longer time to max aperture
Increased variability in aperture and scaling ——-PD
Slower and less accurate movements
Poorly modulated fingertip forces
Scaling
Reduced ability to fractionate movement —— stroke
ability to grasp is usually done within ___ days post stroke
recovery of - within 90 days
probs initiating mvmt in grasp is stroke or PD
PD