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Types of Stroke

Types of Stroke

There are two main types of stroke - Ischaemic and Haemorrhagic, as well as a transient ischaemic attack (TIA) which is often referred to as a 'mini stroke'.

  • Ischaemic stroke

This is the most common type, accounting for more than two thirds of strokes and happens when blood vessels are blocked by a clot or become too narrow for blood to get through to the brain. The reduced flow causes brain cells in the area to die from lack of oxygen. The main cause of ischaemic stroke is atherosclerosis - the build up of cholesterol deposits (called plaques) in the walls of the arteries that feed the brain.

  • Haemorrhagic stroke

The blood vessel is not blocked but it bursts and blood leaks into the soft brain tissue causing major damage.

  • Transient Ischaemic Attack (TIA)

A transient ischaemic attack or mini-stroke is when the interruption of blood supply is short-lived. This produces transient stroke-like symptoms that usually clear up within a few minutes. A TIA should be considered a warning sign as a major stroke may follow.

Don’t ignore the symptoms! Get advice from your doctor.