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Neuro II Exam 1 - CVA
CVA
93
Health Care
Graduate
10/09/2012

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Term
CVA = "The ______ onset of neurological dysfxn resulting from an ___________ of _______ blood flow that lasts for ________ ."
Definition
acute,
abnormality,
cerebral
Term
CVA types (2)
Definition
ischemia,
hemorrhage
Term
Ischemic CVA usually 2º to:
(3)
Definition
thrombus,
embolus,
conditions >> low perfusion pressures (e.g. MI)
Term
CVA:
___(#)___ leading cause of death of adults in US
___(#)___ leading cause of disability of adults in US
Definition
3rd,
1st
Term
Which gender experiences more CVAs?
Definition
M
Term
Which race more common for CVA?
Definition
black
Term
% of CVAs that are ischemic
Definition
87%
Term
Types of hemorrhagic strokes (2)
Definition
intracerebral (10%),
subarachnoid (3%)
Term
Factors that lead to hemorrhagic stroke (3)
Definition
Atherosclerotic plaques
Developmental abnormalities (Berry aneurysms, AVMs)
Term
HTN values
Definition
>160/95
Term
How does CHD >> CVA?
Definition
Plaques >> emboli
Term
How does CHF >> CVA?
Definition
Fluid backup >> blood pooling
Term
How does valvular disease >> CVA?
Definition
turbulent blood flow >> thrombus
Term
How do arrhythmias >> CVA?
Definition
blood pooling >> thrombus
Term
How does cardiac surgery >> CVA?
Definition
embolus 2º to jostling sclerotic aa
Term
Risk factors for CVA: modifiable (6)
Definition
HTN,
CVD,
diabetes,
TIAs,
hyperlipedemia,
smoking
Term
Risk factors for CVA: nonmodifiable (5)
Definition
race,
age,
gender,
heredity,
previous CVA
Term
s/sx of CVA (4)
Definition
sudden severe HA,
sudden hemilateral weakness/numbness,
sudden loss of vision,
unexplained diziness
Term
Explain "cascade" of chemical activity leading to damage of cells following CVA
Definition
cells lacking O2 release glutamate >>
glutamate binds to NMDA receptors >>
Ca influx into neurons >>
activation of Ca-dependent enzymes >> infarction &
more glutamate released
Term
Most frequent cause of death in acute CVA:
Definition
edema
Term
Caudal shift of brain tissue 2º edema:
Definition
brainstem herniation
Term
Lateral shift of brain tissue 2º edema:
Definition
midline shift
Term
Factors determining symptoms of CVA (3)
Definition
location of damage,
size of infarct,
presence of collateral circulation
Term
Test to differentiate hemorrhagic v. ischemic CVA:
Definition
CT scan
Term
Non-contrast CT used to:
Definition
ID non-vascular lesion,
distinguish ischemic/hemorrhagic stroke
Term
CBC used to test for:
Definition
anemia (endocarditis, vasculitis),
thrombocytopenia,
thrombocytosis
Term
ESR used to test for:
Definition
endocarditis, vasculitis
Term
Serum glucose used to test for:
Definition
diabetes
Term
ECG used to test for:
Definition
a fib,
MI
Term
Chest XR used to test for:
Definition
heart disease
Term
Meds categories for ischemic CVA (3)
Definition
anticoagulants,
thrombolytic,
neuroprotective agents
Term
Examples of anticoagulants (4)
Definition
Heparin,
aspirin (antiplatelet),
Ticlid (decr platelet aggregation),
Plavix (antiplatelet)
Term
Time limit for tPA to be effective
Definition
<3 hrs
Term
Examples of neuroprotective agent meds (1)
Definition
NMDA receptor antagonists
Term
Meds categories for hemorrhagic CVA (1)
Definition
Ca channel blockers (Nimodipine); vasodilator
Term
Neuro imaging types (4)
Definition
CT,
MRI,
SPECT/PET,
cerebral angiography
Term
CT useful for imaging:
Definition
non-CVA causes,
edema,
infarction,
hemorrhage
Term
MRI useful for imaging:
Definition
structural detail,
infarct <6hr old
Term
SPECT/PET useful for imaging:
Definition
representation of metabolism
Term
Cerebral angiography useful for imaging:
Definition
occluded vessels
Term
CVA Direct Impairments: sensory deficits
local loss = ____ damage
widespread loss = _____ injury
Definition
cortical,
thalamic
Term
Homonymous hemianopsia 2º to destruction in which aa.?
Definition
MCA (optic radiation),
PCA (1º visual cortex)
Term
Signe Brunnstrom's typical sequence of recovery in hemiplegia (6):
Definition
1: flaccid period
2: basic limb synergies; spasticity develops
3: gain voluntary control of synergies; spasticity increases
4: mvmt combos beyond synergies; spasticity declines
5: synergies decline
6: spasticity disappears
Term
Spasticity experienced primarily in _______ mm
Definition
antigravity
Term
Muscles not normally in UE abnormal synergy (5)
Definition
lats,
teres M,
serratus ant,
finger ext,
ankle inv/DF
Term
Souques phenomenon
Definition
elevating UE c ext elbow >> ext of fingers
Term
Raimistes phenomenon
Definition
resisted abd/add of an LE or UE >> same movement in other
Term
Changes in mm motor units 2º to CVA: (2)
Definition
decr in # of motor units,
abnormal recruitment of motor units
Term
Impairments that affect balance, gait, UE fxnl tasks (5):
Definition
inefficient mm activation,
inability to maintain contraction,
incr effort required to produce contraction,
incr rxn time,
incr mvmt time
Term
T/F: Unaffected extremities experience decr force
Definition
T (~25% decr force in "unaffected" extremities)
Term
Hemispheres' roles in motor programming (L v. R)
Definition
L: involved in sequencing mvmt
R: involved in sustaining mvmt ("motor impersistence")
Term
Types of apraxia (2):
Definition
ideomotor,
ideational
Term
Speech/language disorders occur with lesions to ______ hemisphere
Definition
dominant
Term
Types of aphasia (3):
Definition
fluent,
nonfluent,
global
Term
Visual-perceptual dysfxn usually seen in ____ hemisphere lesions
Definition
R
Term
Types of visual-perceptual disorders (2):
Definition
body scheme disorder,
body image disorder
Term
Body scheme/image disorders
Definition
unilat neglect,
anosagnosia,
pusher syndrome
Term
Affective disorder: R hemispheric lesion >> ??
Definition
emotional lability
Term
Affective disorder: Depression caused by lesion in ??
Definition
both hemispheres; L>R
Term
Behavioral changes 2º to L hemisphere damage (4):
Definition
communication problems,
difficulty processing info sequentially.

cautious, anxious, disorganized;
hesitant to try new things
Term
Behavioral changes 2º to R hemisphere damage (4):
Definition
probs c spatial-perceptual tasks, neglect,
difficulty understanding whole idea of task.

quick, impulsive, overestimate abilities;
need to get them to slow down
Term
DVT cardinal sign:
Definition
rapid onset unilat leg swelling c dependent edema
Term
Prevention of skin breakdown (4):
Definition
positioning,
turning schedule,
avoid shearing,
keep skin dry
Term
Posture is all about _____
Definition
ALIGNMENT
Term
Postural control is (4 descriptors):
Definition
automatic & subcortical,
dynamic,
graded,
related to size of BOS
Term
Altering size of BOS
Definition
REDUCE for low-level pts,
INCREASE BOS for fearful/high tone pts
Term
Task progression: gravity
Definition
with gravity >> against gravity
Term
Task progression: -metrics
Definition
iso < ecc < conc
Term
Task progression: range
Definition
small range >> big
mid range >> extremes
Term
ORDER OF TREATMENT (4)
Definition
1. trunk control
2. midline orientation
3. head control on trunk
4. limb function on trunk (closed chain >> modified closed >> open chain)
Term
Motor Learning Principles used in pt management/treatment (6)
Definition
1. management v. treatment
2. work within FUNCTIONAL context
3. encourage problem solving
4. part >> whole
5. practice
6. feedback (summary; ea 5-10 trials)
Term
Suggested sequencing of treatment (5)
Definition
establish building blocks of task
WB >> NWB
iso >> ecc >> conc
small arc within midrange >> larger ranges
slow >> fast
Term
_____________ >> start of UE dysfxn/pain
Definition
loss of trunk control
Term
Causes of posterior pelvic tilt in sitting posture (4)
Definition
weak trunk ext,
weak abd,
decr lumbar/thoracic ROM,
short hamstrings
Term
Levels of muscular control at shoulder (3)
Definition
1. scapular stabilizers
2. prime movers
3. R/C
Term
Normal scapular alignment (spine, inferior angle, med border/inf angle abd)
Definition
spine @ T2-3
inf @ T7
medial border 3-4 fingerbreadths from spine
inf angle 4-5 fingerbreadths from spine
Term
Causes for scapular malalignment (4)
Definition
weakness of scapular stabilizers,
muscular imbalance of scap stab,
trunk malalignment,
weight of flaccid arm
Term
Sequelae of inf rotation malalignment (5)
Definition
inf sublux
abnormal scapulohumeral rhythm
impingement/pain
shoulder-hand syndrome (CRPS)
decr UE fxn
Term
Subluxation patterns (3)
Definition
inferior,
anterior,
superior
Term
Inferior subluxation s/sx (3)
Definition
most common subluxation
occurs in flaccid stage
not painful (initially)
Term
Subluxation reduction (4)
Definition
correct trunk alignment
correct scapular position
move humerus (lift, depress, etc.)
rotate humerus (ER, IR)
Term
Anterior subluxation s/sx (4)
Definition
occurs in hypertonic stage
painful
2º to overactivity of upper traps & levator scap
humerus in hyperext/IR
Term
Superior subluxation s/sx (3)
Definition
occurs in hypertonic stage
painful
voluntary mvmt limited to abd & IR
Term
Pusher syndrome: higher occurrence with damage to ___ hemisphere
Definition
R
Term
Pusher pts c R-sided lesions show both pushing and _____
Definition
neglect
Term
Pusher pts c L-sided lesions show both pushing and _____
Definition
aphasia
Term
Area of damage in pushers:
Definition
posterolateral thalamus (involved in perception of upright body posture)
Term
Perception of vertical in stool tilting experiment (Karnath)
Definition
18º toward side of lesion
Term
Pusher syndrome theories (2):
Definition
1. trying to compensate for mismatch between visual/perceived vertical
2. response to unexpected loss of balance when moving upright
Term
Typical components required to diagnose pusher syndrome (3)
Definition
spontaneous body posture
abd/ext of nonparetic extremities
resistance to passive correction of tilted posture
Term
Pusher syndrome prognosis (2)
Definition
pushing usually gone within 6 mos.
pts achieve same level of rehab, but 3.6 weeks (63%) longer to do so
Term
Transfers with pushers (2)
Definition
start c low-pivot transfers
transfer to less involved side
Term
Sequential order of pusher intervention (Karnath) (4)
Definition
1. realize disturbed perception of upright
2. visually explore surroundings and body's relation to them
3. learn mvmts necessary to reach vertical
4. maintain vertical while performing other activities
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