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44 Cards in this Set

  • Front
  • Back
TIA
stroke that lasts less than 24 hours
stroke with cocaine use
ICH
clinal course of smooth downhill progression over 6-8 hours
ICH
presentation of a left MCA
aphasia and right hemiplegia
maximal deficit at onset with improvement over next few hours
embolic stroke
types of thrombosis with cortical symptoms vs. no cortical symptoms
large vessel vs. small vessel thrombosis
disease associeated with berries
polycystic kidney disease
string sign
long clot in ica that throws emboli to the retinal artery causing temporary blindness
if a patient falls to the right where is his cerebellar lesion?
right
acute bland infarct appearance after 1 day to 1 weeks
blurring of gray/white due to edema
edema peaks
2-4 days after stroke
subacute phage
macrophages enter and begin cavitation
spheroids
disrupted neuron where the axon has been damaged
growth of new blood vessels occurs
1-2 weeks out
number 1 cause of stroke
thrombus
where does atherosclerosis form
large caliber arteries such as circle of willis vertebral/basilar and extracranial carotid
vessels most commonly affected by embolism
medium caliber
reperfusion is what pressure
high
man in a barrel syndrome is caused by
watershed
venous drainage all feeds into the
superior sagital sinus
can mimic a watershed infarct
venous infarcts
pressure of a SDH
low
charcot-bouchard aneurism pressure
high
most common place for a charcot-bouchard (htn)
basal ganglia
2nd most common place for charcot-bouchard
pons
Evolution of infarcts
acute
subacute
chronic
acute
under 2 days = chromatolysis, eosionophilic neurons
2-4 days=neuronal necrosis, edema
3-5 days=macrophage influx
subacute 1 week-1 month
more macrophages
vascular proliferation
chronic=cavitation
Most cases of stroke are
ischemic
in elderly population the most common cause/type of stroke is
hypertensive ICH attributtible to amyloid angiopathy
leading cause of ICH in the young
cocaine
most common type ICH
hypertensive
biconvex on CT
EDH
most common cause of SAH
trauma
2 common concerns with aneurysm
vasospasm and hydrocephalus
vasospasm occurs what time after stroke
3 days
risk factors for aneurysms
smoking
polycystic kidney disease
HTN
looks like a bag of worms and can be found in either the cerebrum or the spinal cord
AVMs
What percent cure rate for AVM radiosurgery
80% for 2 years
DAVF
abnormal connetion between branches of the internal carotid and the transverse sinus
DAVFs cause symptoms in the following ways:
translate arterial pressure to the venous system
Pressure to the cerebral convexity to produce hemorrhage
Pulsatile tinnitus
venous angioma
medullary veins are deep in the cerebral hemispheres and cerebellum and spinal cord
get spiderweb appearence
cavernous malformation
popcorn appearence on MRI
overgrowth of endothelial cells
thrombolytics must be given in what time frame
first 3-4 hours
region around ischemic core that will be kept alive for a time by collateral circulation during stroke
penumbra
hemiplegia and aphasia is called
middle cerebral artery sign