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Monday, 23 October 2017
Types of stroke

There are two main types of stroke.

Ischaemic strokes happen when something blocks an artery that carries blood to the brain. There are several possible causes:

  • a blood clot forms in a main artery to the brain;
  • a blood clot or fat globule forms in a blood vessel and is carried to the brain;
  • there is a blockage in the tiny bloody vessels deep inside the brain.

 

Haemorrhagic strokes happen when
 a blood vessel bursts and bleeds into 
the brain (a haemorrhage).

The haemorrhage may be due to:

  • a vessel bursting within the brain itself; or
  • a blood vessel on the surface of the brain bleeding into the area between the brain and the skull.
 

Sometimes the blockage in the blood supply to the brain is temporary, and a person will have the symptoms of a stroke for a short time. This is called a transient ischaemic attack (TIA) or mini stroke. A TIA is a sign that part of the brain is not getting enough blood, and there is a risk of a more serious stroke in future. As with major strokes, you must seek medical attention immediately.

 

More information about types of strokes can be found at http://www.stroke.org.uk/about/types-stroke