Card Set Information
What is the % of strokes that are haemorrhagic strokes?
- 10-15% of all strokes (caucasians)
What is a haemorharrgic stroke caused by?
caused by rupture of an intracerebral artery
What parts does a haemorhagic stroke happen in?
What are some predisposing factors of haemorrhagic stroke?
- AVM (arterial venous malformation)
- degenerative small vessel disease- lifetime
- amyloid angiopathy
- coagulation disorders- hemophillia
- cocaine and amphetamines
Where is atherosclerotic plaque more likely to happen?
- where arteries bifucate
- where increase BP
What are the clinical effects of a supratentorial haematoma?
- same ase classic ischemic stroke
- sudden headache and LOC (mss effect) over 24-48 hrs
- focal signs eg hemiparesis, hemisensory loss, homonymous hemianopia
- usually get a splitting headache
what aree the clinical effects of cerebellar haematoma?
- sudden onset of headache
- cerebellar and brainstem signs and symptoms
: ataxia, vertigo, vomiting, dizziness
- CSF obstruction can lead to hydrocephalus with signs and symptoms of increase inter cranial pressure
What is a pontine haemotoma?
- sudden loss of consciousness. Resp irregularities, pyrexia
- quadriplegia, pin point pupils, skrewed eye movements
- death commonly follows
ICH= intracerebral haemorrhagic stroke
- they are dynamic
- where blood doesnt get it suffers from hypoxia
What is a SAH?
Who gets SAH?
- younger pop due to genetic abnormalities
5% of all strokes
What causes a SAH?
- ruptured saccular aneurysm- 85%
- arterial dissection- < 5%
- hypertensive complex small vessel disease
WHat is the surgical management of SAH and ICH?
- SAH- repair aneurysm to prevent rebleed
- ICH- drain haemotoma to relieve mass effect and reduce ICP. Excise AVM if present
What is a TACI?
- total anterior cerebral infarct (can be syndrome, haemorrhage)
- hemiparesis or hemisensory loss
- visual distrubances and glbal aphasia
- aphasia is when dom hemisphere is affected if not you will have spatial neglect
WHat is a PACI?
partial ant circulation infarct
- 2/3 parts of TACI
- dysphasia typically expressive or receptive
- typically no drowsiness
What is a POCI?
- posterior circulation infarct
- ipsilateral cranial nerve alsies with contralateral sensory/ motor loss
- vestibular or occular signs
- isolated cerebellar dysfunction- ataxia/ coordination
- isolated homonmous heminopia- loss of vision of one side on both eyes
- visual disturbances
What is a LACI?
- discrete symptoms
- pure motor stroke
- pure sensory stroke
- ataxic hemiparesis
- dysarthria or clumsy hand syndrome
- isolated to face and hand
stroke types info
Your chances of surviving a stroke decrease with?
- lesion size
- prolonged unconsciousness
- increased age
- severe hyptertension
- severe co-existing disease- heart disease
TACIS and ICH = bad
What are the stroke outcomes at the end of the first year?
- 30% dead
- 30% another stroke
60% will need helps ADLs
5% are totally I
30% of working age will return to work
What causes death?
- effects of ICP in ICH
- Infection esp aspiration pneumonia
- venous thromboembolism
the best outcomes for stroke survivors are achieved by preventing complications