CVA Flashcards
•Non-modifiable factors
- Risk factors that cannot be changed
- Age - with each decade beyond age 55 years.
- Race - African American CVA compared to other groups
- Gender - men have greater risk than women
- Heredity - family history risk for CVA
Sudden, brief episode of neurologic impairment caused by a temporary interruption in cerebral blood flow
Transient Ischemic Attack
Pathology of TIA
Blood vessels occluded by spasms, fragments of plaque, or blood clots
Causes: atherosclerosis, arteriosclerosis, cardiac disease, diabetes
TIAs are a warning that a cerebrovascular accident (CVA) can occur in the near future;
40% of people who experience a TIA will have stroke;
Nearly ½ of these strokes will occur within the first few days after a TIA.
S/S of TIA
•sudden onset, usually lasting 10-20 minutes, but no longer than an hour.
•numbness, tingling, weakness, or loss of movement in your face, arm, or leg, especially on only one side of your body;
ptosis (drooping eyelid), drooping mouth (uneven smile)
•dizziness
•momentary confusion or trouble understanding simple statements
•sudden trouble speaking (speech difficult 2nd to muscle weak)
•sudden problems with walking or balance.
•tinnitus
•sudden visual disturbances
•. dysphagia,
Medical treatment of TIA
- Depends on the location of the narrowed vessel and the degree of narrowing
- Acetylsalicylic acid (aspirin), ticlopidine hydrochloride (Ticlid), extended-release dipyridamole (Aggrenox), or clopidogrel bisulfate (Plavix) decrease platelet clumping
- Warfarin (Coumadin) and heparin
An abrupt impairment of brain function resulting in a set of neurologic signs and symptoms that are caused by impaired blood flow to the brain and last more than 24 hours (less than 24 hrs = possibleTIA)
Stroke (CVA)
Blood vessel in brain ruptures and bleeding into the
brain cccurs.
Hemorrhagic stroke
occurs when a blood vessel on the surface of the brain ruptures and bleeds into the space between the brain and the skull.
Subarachnoid hemorrhage (SAH)
occurs when a blood vessel bleeds into the tissue deep within the brain.
Intracerebral hemorrhage (ICH)
Obstruction of a blood vessel by atherosclerotic plaque, blood clot, or a combination of the two, or by other debris released into vessel that impedes blood flow to an area of the brain
Ischemic stroke
Afib is
- a leading risk factor for stroke
- more common in people over age 60
- often asymptomatic, making it difficult for people to know that they have it
It’s is Important to note about Afib
• Afib can be successfully managed with the help of a
healthcare professional.
• About 15 percent of all people who have strokes also have
Afib.
• Knowing about and properly managing your Afib can prevent
you from having a stroke.
• Up to 80 percent of strokes in people with Afib can be
prevented.
Hemorrhagic stroke s/s
- Occurs suddenly; may include severe headache described as “the worst headache of my life”, dizziness, nausea, vomiting usually followed by a rapid loss of consciousness
- If the ruptured aneurysm produces a slow leak, a stiff neck, headache, visual disturbances, intermittent nausea develop, latent loss of consciousness
- Other symptoms: seizures
•Embolic (clot) stroke s/s
- Appear without warning
- One or more of the following signs and symptoms:
- one-sided weakness
- numbness
- visual problems
- confusion and memory lapses
- headache
- dysphagia
- language problems
•A defect in the use of language; speech, reading, writing, or word comprehension
Aphasia
