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Cerebrovascular disorders
Test 4 Sem 2
28
Medical
Graduate
02/27/2011

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Cards

Term
87% of strokes are what type?
Definition
ischemic
Term
80% of neuronal cell death occurs within what time frame?
Definition
3 hours
Term
What is the gold standard for stroke workup?
Definition
four vessel cerebral angiogram
Term
What is the time frame for initation of t-PA?
Definition
4.5 hours
Term
What decreases embolic stroke rate by 64%?
Definition
warfarin
Term
stroke is the leading cause of what?
Definition
disability
Term
What defines a TIA?
Definition
sudden vascular-related neurologic defecit resolves completely <24 hours
Term
What should be your first imaging technique for CVD?
Definition
non-contrast CT
Term
What is the term used to describe the area around the infarct that has impaired blood flow but active metabolism?
Definition
ischemic penumbra
Term
What meds should be used to reduce BP to what levels during stroke?
Definition
nitro paste or IV labetalol to get BP to <185/110 mg Hg
Term
What metabolic syndrome correlates w/poor outcomes in stroke?
Definition
hyperglycemia
Term
What prophylatic therapy should be started early in stroke patients?
Definition
DVT prophylaxis
Term
How will an infarct in the anterior cerebral artery present?
Definition
contralateral leg weakness
Term
How will an infarct in the middle cerebral artery present?
Definition
contralateral hemiparesis and hemisensory, aphasia, and contralateral visual-field defect
Term
How will an infarct in the vertebal artery present?
Definition
gait abnormalities with crossed facial and body motor signs, diplopia, vertigo, nausea/vomiting
Term
basilar artery infarcts will present how?
Definition
oculomotor deficits w/ataxia and crossed sensory/motor deficits
Term
How will infarcts of teh posterior occipital artery manifest?
Definition
contra-lateral visual-field loss
Term
What is the most common cause of a cardioembolism?
Definition
Atrial fibrillation
Term
What is the hallmark of large vessel atherothromboembolism
Definition
recurrent similar events in same vascular territory
Term
Small vessel occulisve disease - lacunar infarctions are more common with what comorbid condition?
Definition
HTN and DM
Term
What two areas to focus on the exam of someone with TIAs or suspected stroke?
Definition
1) Heart - A fibb, PFO, etc.
2) Extracranial circulation - MRA/CT-A
Term
What labs should be considered in someone <45 yo w/no stroke risk factors?
Definition
genetic tests: SLE, factor V liden, anticardiolipin antibody, ANA, etc.
Term
What do the majority of suriviors have?
Definition
residual neurologic dysfunction
Term
What increases the risk of stroke by 250%?
Definition
tobacco use
Term
What is the BP goal for stroke prevention?
Definition
<140/90, up to 47% reduction of first time stroke
Term
What are 4 risks of cardioembolism one should manage therapeutically?
Definition
1) bacterial endocarditis
2) Akinetic ventricular segments
3) Atrial Fibb
4) Mechanical Heart Valves
Term
subarachnoid hemorrhage most commonly arises from where?
Definition
circle of Willis
Term
What is a common complication of subarachnoid hemorrhages?
Definition
hydrocephalus
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