Ischemic CVA Syndromes cont. - Lecture 11 Flashcards

1
Q

internal carotid syndrome can be dt

A

hypoperfusion

embolus

thrombus

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2
Q

what is ICA syndrome preceded by

A

history of TIAs

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3
Q

amaurosis fugax

A

transient monocular blindness

frequent accompanying symptom

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4
Q

amaurosis fugax includes

A

temp fading of vision or blindness

d/t decrease blood supply from the ICA to the opthalmic artery

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5
Q

ICA supplies

A

MCA and ACA

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6
Q

complete blockage of ICA without collateral circulation

A

deficits in both MCA and ACA

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7
Q

what is possible w/ ICA syndrome

A

uncal herniation

coma

death

significant edema

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8
Q

PCA supplies

A

occipital lobe

medial/inferior temporal lobe

upper brainstem

midbrain

posterior diencephalon

thalamus

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9
Q

2 branches of PCA

A

central

peripheral

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10
Q

central

A

thalamic pain syndrome

hemiballismus

contralateral hemiplegia

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11
Q

thalamic pain syndrome

A

typified by 1 month recovery from hemisensory loss followed by brutal, intractable pain

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12
Q

thalamic pain syndrome is infarct of

A

ventral posterolateral nucleus of thalamus

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13
Q

hemiballismus

A

subthalamic nuclei infarct

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14
Q

contralateral hemiplegia

A

from cerebral peduncle involvement

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15
Q

peripheral PCA

A

transient global amnesia

dyslexia w/o agraphia

visual symptoms

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16
Q

transient global amnesia

A

hippocampal lesion in the temporal lobe

17
Q

dyslexia w/o agraphia

A

color naming and discrimination problems

18
Q

dyslexia w/o agraphia lesion

A

dominant calcarine lesion and posterior corpus callosum lesion

19
Q

visual symptoms lesion

A

occipital lobe

20
Q

visual symptoms

A

visual agnosia

cortical blindness

contralateral homonymous hemianopsia

prosopagnosia

topographic disorientation

21
Q

vertebral artery

A

primary supply to medulla and posterior inferior cerebellum

22
Q

vertebral artery is most often occluded by

A

atherosclerosis

susceptible to trauma
-MVA
-inappropriate extension/rotation

23
Q

vertebral artery syndrome

A

wallenberg’s (lateral medullary) syndrome

24
Q

wallenberg’s (lateral medullary) syndrome

A

all ipsilateral besides contralateral loss of pain and temp

horner’s syndrome

25
horner's syndrome
miosis ptosis anhidrosis
26
basilar artery supplies
pons superior cerebellar peduncles portions of the midbrain cerebellum diencephalon
27
lesion to basilar artery is
life threatening
28
why can a lesion be catastrophic
pontine damage -coma -locked in -akinetic mutism -tetraplegia
29
basilar artery syndrome has a
poor prognosis
30
cerebellum is supplied bu
3 arteries
31
3 arteries that supply the cerebellum
SCA and AICA (from basilar artery) PICA (from vertebral artery)
32
cerebellum lesion symptoms
dizziness nausea/vomiting ipsilateral ataxia direction-changing nystagmus
33
nystagmus
rapid, involuntary rhythmic eye movement with the eyes moving quickly in one direction (quick phase) and then slowly in another (Slow phase)
34
how is a nystagmus defined
the direction of the quick phase