Exam II Flashcards
Stroke recurrence
25-35% of acute stroke patients
Within 5 yrs post stroke recurrence risk is 40% (24% for women and 42% for men)
Increased risk with thrombotic stroke
S/S of stroke
- muscle weakness (typically on 1 side of the body)
- disorganized speech
- tingling or sensation deficit
- altered mental status
- increaSed confusion
Stroke demographics
African American>Hispanic>Caucasian
Socioeconomic and geographic connections
Stroke risk factors
- HTN (biggest)
- high serum cholesterol
- obesity
- heavy alcohol use
- cocaine use
- smoking
- diabetes
- heart disease
Thrombotic stroke
Ischemic-area deprived of blood
Blood clot blocks flow of blood in brain
Embolic stroke
Ischemic-area deprived of blood
Fatty plaque or blood clot breaks away and flows to brain where it blocks the artery
Cerebral hemorrhage
“Bleed”
Break in blood vessel (aneurysm)–> recover quickly once blood is reabsorbed
TPA
Tissue plasminogen activator
Given within 2 hours post stroke will reverse the symptoms
Thrombotic CVA factors
Causes by ASCHD and HTN "Stroke in progress" TIAs -indicative of thrombolytic -possible vasospasm -transient systemic arterial hypotension
Mercy procedure
Go in and remove clot
Kind of like a heart stent
Follow arteries to the brain
Thrombotic CVA and TIA medical management
- prevention
- improve circulation ASAP
- pharmaceuticals
- T-PA
- anticoagulants
- antiplatelets
- surgery (thromboendaeterectomy) for carotid and subclavian blockages
Embolic CVA Facts
- signs of cardiac disease
- originate from
- heart
- internal carotid artery
- carotid sinus
- branches of MCA are commonly affected (poorer outcomes)
Embolic CVA Management
- prevention
- long term anticoagulant therapy
- surgery
Hemorrhagic CVA Facts
- Causes
- HTN
- ruptured saccular aneurysm (berry)
- AV malformation (age 10-35 most common)
- bleeding displaces midline structures
- blood re-absorbed over 6-8 months
What space are the arteries found in?
Subarachnoid
Hemorrhagic CVA Management
- hypertensives
- prevention
- HTN management
- Ruptured aneurysm
- surgery
- Post surgical HOB restrictions, 4-6 wk limited activity, anti seizure meds
Review blood supply
see drawing
Left sided brain damage
- R sided hemiplegia
- don’t worry as much about these patients
- cautious and slow
- possible sensory dysfunction, visual field defect, cognitive impairment
Right sided brain damage
- L sided hemiplegia
- more dangerous
- severe denial of deficits
- impulsive
- perceptual and memory deficits
- possible sensory dysfunction, visual field defect, cognitive impairment
Medical Management of Impairments
- spasticity
- seizures
- respiratory dysfunction
- trauma
- DVT
- CRPS
- Pain
CVA Movement Dysfunction
- decrease force production
- abnormal synergistic mvt
- altered muscle contractions and timing
- decreased force regulation
- delyaed responses
- abnormal muscle tone
Abnormal synergistic mvt
- usually happens later after stroke
- “associated reaction”=UE, ask them to do something and they flex their arm
CVA sensory dysfunction
- awareness
- interpretation
- any modality may be affected
- visual disturbances
- decreased awarenes, decreased attention, inablity to be right here right now, distractable
- double vision
- blurry vision
CVA Secondary impairments
- change in alignment
- change in mobility
- change in muscle and soft tissue length
- pain
- edema (secondary to decrease ms pump)