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18 Cards in this Set
- Front
- Back
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"Man in a Barrel" syndrome is caused by a lesion where?
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ACA-PCA watershed causes proximal leg and arm weakness
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ACA infarct affects....
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mostly contralateral legs
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Internal capsule lesions can be caused by infarct of which vessel?
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lenticulostriate artery or anterior choroidal
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Contralateral homonymous hemianopia can be caused by infarct of which artery?
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PCA
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Broca's aphasia is caused by a lesion in which vessel?
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superior MCA
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Wenicke's aphasia is caused by a lesion in which vessel?
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inferior MCA
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Ipsilateral blindess due to infarction is usually caused by blockage of which vessel?
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opthalmic artery
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5 Branches of internal carotid
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opthalmic, pComm, anterior choroidal, ACA, MCA
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TIA typical duration
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10 minutes
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TIA definition
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neuro deficit lasting less than 24 hours caused by brain ischemia
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What are lacunar infarcts?
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small vessel infarcts; leave cavities "lakes" when seen on autopsy
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A venous emoblus can reach the arteries (and then the brain) via what pathway?
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patent foramen ovale (or VSD/ASD), paradoxical emboli
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Ataxic hemiparesis is caused by damage to what structure?
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contralateral cortico-spinal tracts and ipsilateral cerebellar tracts (or proprioception)
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Major thrombolytic agent given effective within 4.5 hours of stroke onset...
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tPA (tissue plasminogen activator)
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Patiente with what heart defect are at increased risk of emoblic stroke?
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atrial fibrillation
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What is amarosis fugax?
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ipsilateral "browning out" caused by opthalmic artery occlusion; typically seen with carotid stenosis
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Ipsilateral Horner's syndrome + turbulence on heartbeat + eye pain indicates ...
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carotid dissection
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Empty delta sign indiactes...
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Sagittal sinus thrombosis
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