TIA and Carotid Artery Disease

It's Sunday, the 1st of May, and this marks the start of Stroke Awareness Month. Most people think strokes happen suddenly without warning, and that is often true, but it's not entirely true. Some strokes can be predicted and, more importantly, potentially prevented.

As a vascular surgeon, one of the key causes I look for is something called carotid artery disease. These are the main arteries in your neck that supply blood to your brain. Over time, they can narrow due to plaque build-up, very similar to coronary artery or heart disease. When that narrowing becomes severe, small clots or debris can travel to the brain and cause a stroke.

But before a major stroke happens, many patients actually experience warning signs. This might be a transient ischaemic attack, a TIA, sometimes called a mini-stroke. Symptoms can include sudden weakness on one side, slurred speech or loss of vision in one eye. The key point is this. Even if these symptoms last only a few minutes and then disappear, this is a medical emergency. It is your body telling you that a larger stroke may be coming.

So this is where things become very important, because if we identify significant carotid narrowing early, we can intervene. This might involve optimising your medication, changing your tablets or starting you on new ones, or even considering procedures like carotid endarterectomy surgery or carotid artery stenting […]

So if you have high blood pressure, diabetes, high cholesterol or a history of smoking, you are at higher risk of carotid artery disease. And if you've ever had symptoms suggestive of a TIA, even if they've gone away, please don't ignore them. Stroke awareness is not just about recognising stroke. It's about preventing the next one.