CVA - 2a Stroke Syndromes Flashcards

(41 cards)

1
Q

what are the 4 things that the severity of sx depend on

A
  1. location of ischemic process
  2. size of ischemic area
  3. nature and functions of structures involved
  4. availability of collateral blood flow
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2
Q

what are the functions of the occipital lobe

A

vision
understanding the image

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3
Q

what are the functions of the temporal lobe

A

short term memory
hearing
equilibrium
emotion

association areas in temporal lobe

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4
Q

what are the functions of the primary motor cortex

A

motor function area
initiation of voluntary movement

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5
Q

location and function of Broca’s area

A

frontal lobe
muscles of speech
- word retreival -> Broca’s aphasia have word finding difficulties when talking

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6
Q

which hemisphere of the brain is the dominant one

A

L brain

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7
Q

what are 4 specific qualities/functions of the L hemisphere

A
  1. speech, language, comprehension
    - wernicke’s and broca’s areas located on L
  2. analysis and calculations
  3. time and sequencing
  4. recognition of words, letters, and numbers
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8
Q

what are 4 specific qualities/functions of the R hemisphere

A
  1. creativity
  2. spatial ability
  3. context/perception
  4. recognition of faces, places, objects
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9
Q

what is located in both R and L frontal lobes

A
  1. motor
    - motor deficits, issues w initiation and motor planning (ie motor apraxia)
  2. initiation
  3. judgment
    - safety awareness
    - seen more frequently in R strokes
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10
Q

common R sided stroke characteristics

A

trouble w spatial abilities, perception of surroundings, insight, judgment

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11
Q

what is the blood supply of the frontal lobe

A

MCA - lateral aspect
ACA - medial aspect

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12
Q

what qualities are found in just the L frontal lobe and just the R frontal lobe

A

L side
- expressive language

R side
- emotions
- creativity

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13
Q

what function is located in both R and L parietal lobes

A

sensation
- primary sensory cortex

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14
Q

what is the blood supply of the parietal lobes

A

MCA - lateral aspect
ACA - medial

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15
Q

what qualities are found in just the L parietal lobe and just the R parietal lobe

A

L side:
issues w communication
- reading
- writing
- numbers

R side:
- visual perception
- spatial orientation - spatial planning and awareness
- ex: unilateral neglect (perceptual dysfunction)

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16
Q

what is the blood supply of the temporal lobe

A

MCA

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17
Q

what function is located in both R and L temporal lobes

18
Q

what qualities are found in just the L temporal lobe and just the R temporal lobe

A

L side:
- word memory
- language comprehension
- ex: wernicke’s aphasia

R side:
- music
- nonverbal memory (ie gestures)

19
Q

what is the blood supply for the occipital lobes

20
Q

what functions are located in both R and L occipital lobes

A

vision

no separate functions between lobes

21
Q

describe the presentation of someone w a L CVA

A

R hemiplegia
slow, cautious, uncertain
- d/t effects on initiation
insecure, frustration, anger
better insight
memory problems
aphasia
motor apraxia
R hemianopsia
communication issues

22
Q

PT strategies specific to a L CVA

A

give frequent assurance and immediate positive feedback
- break tasks down into steps and practice often

slow things down and be explicit w instructions
- get frustrated easily

23
Q

describe the presentation of a R CVA

A

L hemiplegia
quick ** impulsive**
poor insight/judgment
- overestimate abilities
denying problems
emotional lability
unilateral neglect
L hemianopsia
dec spatial orientation
apraxia

24
Q

PT strategies specific to R CVAs

A

concerned ab safety and fall risk
- cog skills lack judgment and poor attention span

impulsive and move quickly

25
why do sx vary so much from human to human and what does this impact
wide variability in human vasculature and collateral flow - can change extent and nature of effects from one person to another
26
what impact can an infarcted area have on the brain as a whole
loss of input from infarcted area can impact other brain functions
27
what are the stroke syndromes which occur in the cerebral hemispheres
supplied by carotid or ant circulation - ACA syndrome - MCA syndrome - ICA syndrome
28
what are the stroke syndromes which occur in the brainstem and posterior hemisphere
supplied by vertebral basilar or posterior circulation - PCA syndrome - brainstem and cerebellar stroke syndrome -----> vertebrobasilar artery syndromes
29
what are lacuna arteries
terminal branches of all cerebral circulation - small arteries
30
what are the 2 arterial sources from the aorta in the brain
internal carotid a. vertebral a.
31
what is the circle of willis
connects the 2 arterial sources from aorta (ICA and vertebral a.)
32
what is the path for anterior circulation in the brain
ICA splits into ACA and MCA - supply cerebral hemispheres
33
what is the path for posterior circulation in the brain
union of the 2 vertebral arteries forms the basilar a. - this splits into 2 PCAs perfuses post and inf parts of cerebrum, cerebellum, and brainstem
34
what part of the brain has a rich blood supply and yet is not typically involved in strokes
corpus callosum
35
what is the blood supply of the corpus callosum
branches of ACA and PCA
36
what does the MCA supply
lateral frontal, parietal, and temporal lobes
37
what does the ACA supply
medial frontal and parietal lobes
38
what does the PCA supply
post hemispheres of occipital lobe and brainstem
39
which is larger: ACA or MCA
MCA > ACA MCA perfuses entire lateral aspect of cerebral hemispheres except for occipital and subcortical structures
40
describe the difference in a prox vs distal occlusion
prox - more significant extensive neuro damage distal - less damage and better outcomes
41
MCA vs ACA and the homunculus
ACA more medial - sensory and motor to LE MCA more lateral - sensory and motor to UE and face