1. Ischaemic: this may be due to:
   (a) cerebral artery thrombosis (clots formed in the artery)
   (b) cerebral embolism ( a clot or piece of atheroma from somewhere else in the body lodges in the cerebral artery)

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   85% are due to clots of some form, and these qualify for special treatment. An ischaemic stroke usually affects the cerebral hemispheres, the areas of the brain that governs movement, language and the senses. Only 20% of people who have this type of stroke will die.

2. Haemhorragic: this means a bleed into tissues, usually due to a ruptured vessel
   (c) Intracerebral bleed ( into the brain tissue)
   (d) Subarachnoid bleed ( into the membranes around the brain)
   

This type of stroke is less common than an ischaemic stroke, but more deadly – it accounts for about 50% of deaths from strokes.

Read more:
Cause of stroke
Symptoms of stroke

The Heart and Stroke Foundation South Africa
 

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