CVA Part 2 Flashcards
parts of the circle of willis
2 ACA
2 PCA
2 Pcomm
1 Acomm
what is sclerosis
hardening of vessels
arteriosclerosis
hardening d/t dec patency
atherosclerosis
hardening d/t dec fat or hyperlipidemia
discuss MCA
most occluded artery - sa right angle
more proximal = more damage
supplies UE and face
sx of MCA stroke
contra hemiplegia and homonymous hemianopsia
frontal or pontine gaze pattern
dominant - language center deficits
non dom - perceptual deficits
gerstmann’s syndrome
frontal vs pontine gaze patters
frontal - away from paretic side
pontine - towards paretic side
discuss ACA
supplies more of LE and genitals - BASTOS
proximal - minimal deficit bcs of Acomm
distal - more significant kasi wala na contralateral flow
sx of ACA stroke
contra hemiplegia and homonymous hemianopsia
frontal gaze
gait and disconnection apraxia
transcortical motor aphasia
urinary incontinence
contralateral grasp reflex and sucking reflex
abulia and akinetic mutism
discuss ICA
mixture of ACA and MCA - equal to face, UE and LE
sx of ICA stroke
amaurosis fugax - transient loss of vision upon attack
ophthalmic artery is affected
discuss PCA
more of UE=LE; does not follow homonculus
proximal - minimal
distal - more deficits
sx of PCA stroke
contra hemiplegia and homonymous hemianopsia
thalamic pain syndrome - dejerine roussy syndrome or hyperpathia
amnesic syndromes
visual disturbances - visual agnosia, prosopagnosia, cortical blindness
discuss VBA
VA - cerebellum, medulla, PICA
basilar - internal ear, pons, AICA, SCA
discuss lacunar stroke sx
pure motor - post limb of IC
pure sensory - thalamus and projections
sensory-motor: junction of IC and thalamus
dysarthria-clumsy hand: ant limb of IC
ataxic hemiparesis - corona radiata
hemiballismus - STN
