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.
“But anyone, even people who are relatively young and healthy, could potentially have a stroke.” While you can't do much about risk factors related to your age, gender or family history, there are four important things you can do to lower your risk of stroke — and improve your overall health: Stop smoking.
With a mild stroke, symptoms may have already subsided once a person reaches the hospital. However, this person should still be evaluated by a doctor after the stroke occurs. A mild stroke can be an indicator that a more serious stroke is on its way.
Some people have strokes without realizing it. They're called silent strokes, and they either have no easy-to-recognize symptoms, or you don't remember them. But they do cause permanent damage in your brain. If you've had more than one silent stroke, you may have thinking and memory problems.
In fact, ischemic strokes unfold over a period of 10 hours. That means that with every second you wait for treatment, the brain damage gets worse. If a stroke is untreated for the full 10 hours, the brain ages up to 36 years! With every minute you wait, the brain loses two million brain cells.
The longer a stroke goes untreated, the more damage can be done — possibly permanently — to the brain. “If you suspect you or someone you're with is having a stroke, don't hesitate to call 911,” Dr. Humbert says. “It could save a life.”
Usually, a silent stroke is discovered unexpectedly on a brain CT or brain MRI. These imaging tests can easily distinguish past strokes from recent strokes.
In addition to the classic stroke symptoms associated with the FAST acronym, around 7-65% of people undergoing a stroke will experience some form of a headache. People describe a stroke-related headache as a very severe headache that comes on within seconds or minutes.
Call 9-1-1 immediately if any of these signs of stroke appear: Numbness or weakness in the face, arm, or leg; Confusion or trouble speaking or understanding speech; Trouble seeing in one or both eyes; Trouble walking, dizziness, or problems with balance; severe headache with no known cause.
You get stroke symptoms because a clot is blocking the blood supply in your brain. When the clot moves away, the stroke symptoms stop. You might feel like you're fine afterwards, but it's vital to get medical help right away.
The only way to tell the difference between a ministroke and a stroke is by having a doctor look at an image of your brain with either a CT scan or an MRI scan. If you've had an ischemic stroke, it's likely that it won't show up on a CT scan of your brain for 24 to 48 hours. An MRI scan usually shows a stroke sooner.
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.
When people use the term "ministroke," what they're really often referring to is a transient ischemic attack (TIA). A TIA is a brief interruption of blood flow to part of the brain, spinal cord or retina, which may cause temporary stroke-like symptoms but does not damage brain cells or cause permanent disability.
High blood pressure is the leading cause of stroke and is the main cause for increased risk of stroke among people with diabetes.
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).
Computerized tomography (CT) scan – CT scans use a series of X-rays to create a detailed image of your brain. A CT scan can show a hemorrhage, tumor, stroke and other conditions. There are different types of CT scans that your doctor may use depending on your situation.
Look for these signs and symptoms if you think you or someone you know is having a stroke: Sudden trouble speaking and understanding what others are saying. Paralysis or numbness of the face, arm or leg on one side of the body. Problems seeing in one or both eyes, trouble walking, and a loss of balance.
When stroke occurs, the blood pressure (BP) often rises because of various factors, such as psychological stress, pain, elevated intracranial pressure, urinary retention, and hypoxemia.
Imaging Scans Used to Diagnose Stroke
Each year, more than 750,000 Americans have a stroke. About 80% are ischemic strokes. The rest are hemorrhagic stroke, caused by bleeding in the brain. Currently, there is no blood test for detecting stroke, although several groups are developing them.
Research shows that the brain possesses an extraordinary ability to heal itself after stroke. This ability, known as neuroplasticity, is why many stroke survivors go on to make astonishing recoveries. However, this healing process cannot happen on its own.
How Does a Stroke Impact Life Expectancy? Despite the likelihood of making a full recovery, life expectancy after stroke incidents can decrease. Unfortunately, researchers have observed a wide range of life expectancy changes in stroke patients, but the average reduction in lifespan is nine and a half years.