What is it?

A transient ischaemic attack, also known as a TIA, occurs when blood supply to the brain is blocked temporarily. TIAs are caused by a blood clot or blockage which dissolves or dislodges on its own. Most TIAs resolve in around one hour. Some only last a few minutes. 

TIAs are sometimes called “mini strokes” as they cause the same symptoms that occur in strokes. Common symptoms include slurred speech, weakness in one side of the body and difficulty seeing. Anyone showing these symptoms needs urgent medical treatment to determine if they have had a TIA or a stroke.

There is a high risk of stroke after a TIA. The highest risk is within the first 24-to-48 hours. Treatment for TIAs includes medication, surgery and healthy lifestyle changes.