Chapter 1 CVA's Flashcards
Strokes (CVA’s)
Cerebrovascular accidents
The 3rd leading cause of death in the U.S.
Symptoms of CVA’s
Weakness/numbness on one side of body Impairment of vision Difficulty speaking or understanding speech Dizziness or falling Severe headache
Types of strokes
Ischemic
Hemorraghic
Transient Ischemic Attack (TIA)
Deficiency in blood
Ischemia
Necrosis or death of neural tissue due to lack of oxygen
Infarction
Cerebral thrombosis
A blockage of blood flow through a vessel in the brain by a blood clot that formed in the brain itself
Cerebral embolism
The sudden blocking of an artery by a clot or foreign material which travels through the artery and becomes lodged along the way
Hemorraghic stroke
Results from ruptured blood vessels causing cerebral bleeding
2 types of hemorraghic stroke
Intracerebral hemorrhage & extracerebral hemorrhage
Intracerebral hemorrhage
Caused by ruptures within the brain or brain stem
Extracerebral hemorrhage
Caused by ruptures within the meninges
Ischemic stroke
Can be either thrombotic or embolic
Transient Ischemic Attack (TIA)
Temporary disruption in blood supply which lasts less than 24 hours and most often less than 30 minutes thought to be caused small emboli that block the artery and then dissolve or break up
Pattern of recovery for ischemic stroke
Greater and sooner recovery
Noticeable recovery in first few weeks
Maximum recovery of language in 3 months
Neurological recovery usually done by 6 months
Pattern of recovery for hemorraghic stroke
Little recovery in first 4 to 8 weeks
More rapid recovery after 4 to 8 weeks
After 8 weeks slowing down of recovery, stabilizing with greater residual deficits
Neurological recovery complete by 6 months
