Ischemia Flashcards
What is ischemia
Ischemia is the lack of sufficient oxygen in the brain, due to a cerebrovascular incident
Ischemia has sympoms that last 10-15 minutes
Stroke lasts more than 24 hours
What types of stroke do we have?
Ischemia
intracerebral haemorrhages
subarachnoid haemorrhages
FAST?
Face, arm, speech, time
Ask to smile, raise arm, form sentences. If the face sags or they can’t do the other things, they may have a stroke and time is very important
How is stroke diagnosed?
After admission, a CT or MRIscan is done.
CT is good for haemorrhagic stroke, because it shows the damage. It takes to long for ischemic damage to show up
MRIis better for ischemic stroke because it can immediately visualize the lack of blood flow.
What is the primary therapy?
Thrombectomy - catheterto remove the clotting
Thrombolysis to break the clotting - using rTPA to break down the fibrine and dissolve the clot
Induced hypothermia to slow down the metabolism and reduce damage
What is secondary prevention?
Blood pressure control, control of sugar levels, lowering of lipid levels, anticoagulation use, secondary prophylaxis.