A Transient Ischaemic Stroke (TIA) also known as a ‘mini-stroke’ is a set of symptoms similar to those of a stroke. It can last from a few minutes to a few hours but the symptoms disappear within 24 hours.
In a TIA, a blood vessel in the brain is temporarily blocked by a clot, but the body breaks down the clot before any lasting damage is done to the brain.
But a clot is a clot. It may be temporary but it should not be ignored because it is a serious warning that something is wrong with the blood flow to your brain and a full stroke could happen in the future.
If you have a mini stroke (TIA), you have an increased chance of having a full stroke. 1 in 10 people who have a mini stroke have a full stroke within a week.
The symptoms of a mini stroke/TIA are the same as the symptoms of a full stroke, though they disappear within 24 hours:
Face – is it drooping on one side?
Arms – is their arm weakness? Can they be raised?
Speech - is it slurred?
Time to get to hospital as soon as possible.
Other symptoms of a mini stroke may include:
- Blurred or reduced vision
- Difficulty understanding
- Dizziness or loss of balance
- Difficulty swallowing
- Severe headache
- Nausea or vomiting
As the symptoms don’t last, it is common for the person experiencing them to dismiss them, and think nothing of them.
If you experience the symptoms of a stroke or mini stroke (TIA), seek urgent medical help. When you are having the symptoms it is impossible to know if you are having a mini stroke or a full stroke. Don’t wait to see if they go away, call 999 immediately.
Sometimes people don’t recognise the signs of a TIA at the time, and only realise later on that something wasn’t quite right. If you experienced symptoms recently but didn’t see a doctor, you should make an urgent appointment to see your GP. Your GP will also be able to refer you to a TIA clinic.