Term
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Definition
| neurologic deficit or dysfunction and neurologic impaired output because of vascular supply problem |
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Term
Anatomic considerations:
cerebral circulation |
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Definition
anterior: internal carotid arteries
posterior: vertebral/basilar arteries
the circle of willis
when you know what vasculature is effected you can predict the manifestations |
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Term
physiologic considerations:
regulation of cerebral blood flow |
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Definition
intracranial (intrinsic) control
-perfusion force
-adequacy of cerebral vessels
-intracranial pressure
extracranial (extrinsic) control
-systemic blood pressure
-cardiovascular function
-blood viscosity |
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Term
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Definition
3rd leading cause of death, leading cause of hemiparalysis
-something occludes fluid to the brain
contributing factors:
-atherosclerosis
-embolism
-hypertensive intracerebral hemorhage
-aneurysms |
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Term
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Definition
predisposing conditions:
-HTN
-cardiac disease
-hyperlipedemia
classification by progression
-transient ischemic attack (TIA)
-progressing stroke
-completed stroke |
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Term
stroke:
site and consequences |
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Definition
-anterior cerebral artery: contralateral disturbances, impaired cognition, aphasia, incontinence
-middle cerebral arteries: contralateral disturbances, aphasia, homonymous hemianopsia, altered conciousness
-posterior cerebral arteries: visual defects, homonymous hemianopsia, color blindness, memory impairment, sensory loss, hemiparesis
-vertebral/basilar arteries: disturbances in gait, speech, vision, swallowing |
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Term
stroke pathogenesis:
3 different ways leading to neurologic deficits |
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Definition
thrombosis:
-ischemic stroke--occlusive: occlusion of cerebral arteries
--problems that begin with athlerosclerosis
--usually prediliction for the internal carotids and basilar arteries
embolism:
-ischemic stroke--embolic stroke
--middle cerebral artery
cerebral hemorrhage
-hemorrhagic stroke
-mortality/morbidity worse |
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Term
|
Definition
motor and sensory deficits
-motor paralysis
-muscular atrophy
-sensory impairment
language deficits
-aphaisas
cognitive deficits
-language impairment
-impaired spatial relationship skills
-short-term memory impairment
-poor judgment |
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