stroke Flashcards
What is a stroke
A blocked or ruptured vessel in the brain causing a Neurological deficit of sudden onset lasting more than 24 hours
What is the most common cause of stroke in the brain
An embolus coming from atrial fibrillation
What is the presentation of a total anterior circulation stroke
Obstructed anterior and middle cerebreal arteries which causes:
* Limb weakness
* sensory and motor dysfunction
* visual dysfunction
What is the presentation of a partial anterior circulation stroke
Part of the middle cerebral artery is obatructed:
Only one of the following:
- Limb weakness
- sensory and motor dyfunction
- Visual dysfunction
What is the presentation of a lacunar stroke
Isolated limb weakness and no other nerurological deficits
What is th presentation of a posterior circulation stroke
Posterior cerebral artery affected - balance and visual signs
What are symptoms of anterior cerebral artery occlusion
- Paralysis and sensory loss of contra-lateral foot and leg
- Gait impairment
What is the presentation of a middle cerebral artery stroke
- Contra lateral motor and sensory impairment of face, arm and leg
- Contralateral homonymous hemianopia
- aphasia if dominant side stroke
- agnosis
What is the treatment of an ischaemic stroke
Thrombolysis - alteplase or tenectoplase