Tests will be done to rule out a stroke or other disorders that may cause the symptoms: You will likely have a head CT scan or brain MRI. A stroke may show changes on these tests, but TIAs will not. You may have an angiogram, CT angiogram, or MR angiogram to see which blood vessel is blocked or bleeding.
An MRI can sometimes show the site of the TIA, especially if it's done soon after it happens. But this is not the main way that a TIA is diagnosed.
Signs of stroke can show up on an MRI for years after the initial event. If the symptoms were mild, a person may not know they had a stroke until long afterward.
Symptoms to Watch For
You likely won't know for certain that you have suffered a silent stroke without receiving a brain scan like an MRI or CT scan. After a silent stroke, a brain scan can show small white spots that indicate the presence of lesions.
These brief episodes are transient ischemic attacks (TIA), sometimes called “mini-strokes.” They still should be taken seriously, because they tend to be signs of underlying serious conditions that can lead to a full stroke, even possibly in the few days following a TIA event if not evaluated and treated for a TIA.
TIAs look like strokes in terms of signs and symptoms, but they are temporary. In other words, they leave no lasting brain damage or residual symptoms. However, they serve as a warning sign that a person is at higher risk of a major stroke and should seek immediate medical attention.
Most people who have a mini-stroke feel fine after the event. In fact, many people don't even realize they've had one! Symptoms might include weakness, numbness, tingling, vision changes or difficulty speaking. Most symptoms are temporary and dissipate within minutes but sometimes can last up to 24 hours.
A person's life expectancy after a mini stroke reduces by around 4% in the first year following the attack in comparison to people who have not had one. In the following 9 years, life expectancy reduces by 20%. These statistics come from a 2019 review .
Sudden numbness or weakness in the face, arm, or leg, especially on one side of the body. Sudden confusion, trouble speaking, or difficulty understanding speech. Sudden trouble seeing in one or both eyes. Sudden trouble walking, dizziness, loss of balance, or lack of coordination.
You do not need to be admitted to hospital because of a TIA, but this is often done because of the absence of an alternative. Many TIA clinics now offer a “one-stop” service for which the patient is assessed, investigated (or investigated before the appointment), and given results at the same session.
Some of the most common stroke mimics are seizures, migraine, fainting, serious infections and functional neurological disorder (FND).
Our study has revealed that according to neurologists, the most consistent predictors for a diagnosis of TIA include negative symptoms (loss of motor, sensory, or visual function) and speech disturbance.
A TIA is often a sign that another one may follow and you're at a high risk of having a full, life-threatening stroke in the near future. Regardless of whether you have had a TIA or stroke in the past, there are several ways you can lower your risk of having either in the future.
One of the most common stroke mimics is a seizure, which researchers believe account for as many as 20% of all stroke mimics. Other common stroke mimics include migraines, syncope, sepsis, brain tumor and metabolic derangement (low sodium or low blood sugar).
Fatigue affects the majority of people who have a stroke or transient ischaemic attack (TIA or mini-stroke). It can have a big effect on your life.
Chronic stress can indirectly cause a stroke or TIA (transient ischemic attack or mini stroke). For instance, chronic stress can lead to high blood pressure, which is a known risk factor for stroke and heart disease. Stress can also cause inflammation in the arteries all over the body.
Excessive daytime sleepiness (EDS) is a prevalent symptom among stroke survivors. This symptom is an independent risk factor for stroke and may reduce stroke survivors' quality of life, cognitive functioning, and daytime functional performance.
"Mini Strokes" - in 40s and 50s
The likelihood of stroke increases with age, doubling for every decade after age 55, one-third of strokes occur in people younger than 65, with particular risk in young and middle aged women. In fact, women 45 to 54 years of age are more than twice as likely as men to have a stroke.
An MRI scan is most often used. This type of scan uses a strong magnetic field and radio waves to create an image of your brain.
Transient ischemic attack and minor stroke are highly predictive of a subsequent disabling stroke within hours or days of the first event. The risk of subsequent stroke after a transient ischemic attack is between 2% and 17% within the first 90 days after the initial event.
Although the symptoms of a transient ischaemic attack (TIA) resolve in a few minutes or hours without any specific treatment, you'll need treatment to help prevent another TIA or a full stroke from happening in the future. A TIA is a warning sign that you're at increased risk of having a full stroke in the near future.
You may have more than one TIA , and the recurrent signs and symptoms may be similar or different depending on which area of the brain is involved.
Some people will experience symptoms such as headache, numbness or tingling several days before they have a serious stroke. One study found that 43% of stroke patients experienced mini-stroke symptoms up to a week before they had a major stroke.