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.
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.
Yes, you can have a stroke and not know it. A stroke's effects can be undetectable if the stroke is small or if the tissue damaged does not serve a critical function. Evidence of the stroke would show on a CT scan or an MRI of the brain, but it might not produce symptoms.
Pre-strokes or mini strokes are the common terms used to describe a transient ischemic attack (TIA). Unlike a full blown stroke, a TIA only lasts a few minutes and does not cause permanent damage. Nevertheless it is a warning sign that a possible stroke may be coming in the future.
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.
“If you have an inability to speak words, notice food or liquid falling out of your mouth due to facial droop, you could be having a stroke. If you experience numbness in your face or extremities, can't move an arm or leg or have a sudden onset of double vision or dizziness — those are other possible stroke symptoms.”
Patients may experience strange feelings such as tingling, hearing loss, unusual visual episodes, dizziness, nausea, headaches, confusion, clumsiness or slurred speech.
The easiest way to differentiate between the two is to pay attention to sensations. A migraine headache produces sensations like auras, flashing lights, or tingling skin, while a stroke-related headache causes sensations to be lost, such as a loss of vision or feeling.
A brain CT scan can show if there is bleeding in the brain or damage to the brain cells from a stroke. Magnetic resonance imaging (MRI) uses magnets and radio waves to create pictures of your brain. An MRI may be used instead of—or in addition to—a CT scan to diagnose a stroke.
Warning signs of an ischemic stroke may be evident as early as seven days before an attack and require urgent treatment to prevent serious damage to the brain, according to a study of stroke patients published in the March 8, 2005 issue of Neurology, the scientific journal of the American Academy of Neurology.
Although they don't cause permanent damage, if left untreated, a transient ischemic attack (TIA) can serve as an early warning sign of a future stroke, with an estimated one-third of individuals who experience TIA later experiencing a stroke.
Sometimes a stroke happens gradually, but you're likely to have one or more sudden symptoms like these: Numbness or weakness in your face, arm, or leg, especially on one side. Confusion or trouble understanding other people.
Strokes may not be seen on a CT scan for several reasons. It can sometimes take several hours for the brain to appear abnormal after the onset of stroke. The affected region may also be a part of the brain that CT scans do not image well, such as the cerebellum or the brainstem.
There is no blood test that can diagnose a stroke. However, in the hospital, your doctor or nurse may do a series of blood tests to learn the cause of your stroke symptoms: Complete blood count (CBC).
Drink a lot of water: You should drink at least five glasses of water per day, and this will reduce your risk of stroke by 53%, according to a recent study by Loma Linda University.
The major risk factors for stroke include: High blood pressure. Diabetes. Heart and blood vessel diseases: Conditions that can cause blood clots or other blockages include coronary heart disease, atrial fibrillation, heart valve disease, and carotid artery disease.
Stage 1: Flaccidity
Flaccid paralysis (flaccidity) is the medical term for a complete lack of voluntary movement. This paralysis is caused by nerve damage that prevents the muscles from receiving appropriate signals from the brain, whether or not the brain is still capable of moving those muscles.
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).
Stress can cause the heart to work harder, increase blood pressure, and increase sugar and fat levels in the blood. These things, in turn, can increase the risk of clots forming and travelling to the heart or brain, causing a heart attack or stroke.
An MRI can also detect old strokes for decades after they happen. The fastest type of MRI is diffusion-weighted imaging (DWI). It measures shifts in fluid in the brain and can detect a stroke soon after its onset. An MRI can also detect evidence of past strokes.