Transient ischaemic attack (TIA): symptoms and urgent care

A transient ischaemic attack is a brief interruption of blood flow to part of the brain and needs emergency assessment.

It is sometimes called a mini-stroke, but the word mini can be misleading. Symptoms may disappear, yet a TIA is a warning that a stroke could follow. Call emergency services immediately if symptoms are happening now or have recently happened, even if they have improved.

Weakness on one side and slurred speech are very common presentations of transient ischaemic attack. Numbness and tingling can also occur. Symptoms often begin suddenly and may involve the face, an arm, a leg, vision, balance, understanding, or finding words.

Use the time symptoms started, or the last time the person was known to be well, when calling for help. Do not drive yourself or wait to see whether the problem returns.

A clot can temporarily block an artery supplying the brain. Clots may form in narrowed arteries or travel from the heart. Irregular heart rhythm, high blood pressure, diabetes, smoking, raised cholesterol, and some blood-vessel conditions can contribute to stroke risk.

TIA symptoms may resolve completely, but this does not make the event safe to ignore. Hospital assessment aims to identify the cause quickly and start a plan to reduce future stroke risk. The care team may arrange brain and blood-vessel imaging, heart checks, and blood tests.

Risk increases with conditions that affect blood vessels or the heart. Atrial fibrillation can allow clots to form in the heart, while hypertension can damage blood vessels over time. Family history, diabetes, tobacco use, high cholesterol, and previous stroke or TIA are also relevant to assessment.

Clinicians ask what happened, how quickly it started, which body areas were affected, and whether symptoms have changed. They examine speech, strength, sensation, coordination, and vision. Tests may include brain imaging, imaging of neck arteries, an electrocardiogram, and blood tests.

Bring or photograph a list of all medicines if possible. It is useful for the team to know about blood thinners, recent infections, bleeding, falls, and prior neurological symptoms.

Treatment targets the cause found. It may include medicines that reduce clot formation, blood pressure treatment, cholesterol-lowering treatment, or care for an irregular heart rhythm. Some people need a procedure for a narrowed neck artery. Your team will explain the purpose and safety considerations for each medicine.

Take new medicines consistently and attend follow-up appointments. Support from family can help with transport, medication routines, and noticing recurrent symptoms. Discuss returning to work, driving, exercise, and travel with the treating team because advice depends on the event and evaluation.

The major concern after a TIA is a future stroke. A stroke can cause lasting problems with movement, speech, swallowing, vision, thinking, or independence. Prompt assessment and management of underlying risks aim to lower that danger.

Do not smoke, take prescribed treatment as directed, and seek help to manage blood pressure, cholesterol, and diabetes. Choose regular activity and food patterns that support cardiovascular health when your clinician says it is safe. Treat new stroke-like symptoms as an emergency every time.

Suspected TIA requires emergency services or an emergency department, not a routine appointment. After urgent assessment, follow-up may involve a stroke specialist, neurologist, cardiologist, or primary-care clinician depending on the cause.