vertebrobasilar stroke syndromes Flashcards
(20 cards)
what are the symptoms of an SCA stroke ?
mostly cerebellar symptoms
ipsilateral cerebral ataxia
nausea and vomiting
what is the presentation of a basilar artery stroke ?
associated with locked in syndrome
ventral pontine syndrome
where there is loss of corticospinal and corticobulbar tracts
quadriplegia
what is the difference between a vegetative state and locked in syndrome ?
in locked in syndrome the patient can blink
what area of the brain is supplied by the Basilar artery ?
the medial side of the pons
what is the cause of lateral pontine syndrome ?
happens due to the obstruction of the AICA
what is the other name given for affection of the basilar artery ?
ventral pontine syndrome
what is central pontine myelinosis ?
osmotic demyelination syndrome , which is a lesion of the ponns associated with overly rapid correction of sodium
what does central pontine demyelination present similarly with ?
locked in syndrome ( which is obstruction of the basilar artery)
what does affection of the top of the basilar artery lead to ?
usually due to an embolic cause leads to changes in the level of consciousness and visual changes
along with eye problems
eye problems , hallucinations and coma , along with A fib ?
think of obstruction of the top[ of the basilar artery
what does a stroke of the AICA lead to ?
lateral pontine syndrome
which presents as ipsilateral bells palsy after a stroke
when does horner syndrome occur ?
upon affection of the anterior horn cell or affection of the sympathetic pathway
where does the sympathetic pathway come from ?
from the lateral horn
what happens upon a stroke of the PICA ?
lateral medullary syndrome also known as wallenberg syndrome
what is the common presentation associated with PICA syndrome ?
lateral medullary syndrome is associated with dysphagia and ipsilateral horner syndrome after a stroke
what spinal disease was associated with aortic aneurysm repair ?
anterior spinal artery occlusion
generally what are the causes of horner’s syndrome ?
lateral medullary syndrome
syringiomyelia
pancoast tumor
aortic dissection
carotid artery stenosis
cavernous sinus lesion
what dose stroke of the ASA present with ?
anterior spinal artery syndrome is associated with affection of everything but sparing the dorsal horn and dorsal column
UMN below the level of the lsion
LMN at the level of the lesion
spinothalamic affection below the level of the lesion which means loss of pain and temperature
paralysis below the lesion
what if there is ASA stroke at the level of the medulla ?
then you are left with medial medullary syndrome
which presents with ipsilateral tongue deviation to the side of the lesion
what are the blood vessels supplying the cerebellum ?
SCA
PICA
AICA
