What is a stroke?
A stroke happens when the blood supply to part of the brain
is suddenly reduced or stopped. That part of the brain dies
and no longer works.
How does it occur?
Blood cannot get to your brain when a blood vessel is
blocked or breaks inside the brain. This can happen in
different ways. For example:
- A blood clot in an artery may block blood flow to the
brain.
- An artery in the brain may break and bleed into the
brain.
You are more likely to have a stroke if:
- You have high blood pressure.
- You have heart disease.
- You have diabetes.
- You have sleep apnea.
- You have sickle cell anemia.
- You use cocaine.
- You have high cholesterol.
- You smoke cigarettes.
- Someone in your family has had a stroke.
- You are overweight.
- Your arteries have fatty deposits on the inside.
What are the symptoms?
Every stroke is different. The symptoms you have depend on
the part of the brain damaged by the stroke. Symptoms may
come on suddenly. Here are some of the warning signs:
- You may feel weak or numb on one side of the body. You
may feel tingling in your face, arm, or leg.
- You may feel dizzy or lose your balance. You may have
trouble walking.
- You may not be able to speak. You may have a hard time
understanding what others say.
- You may be confused or have a change in personality.
- You may have trouble seeing in one or both eyes or have
double vision.
- You have a hard time moving your muscles. It may be
hard to swallow or move your arms and legs.
- You may lose bowel or bladder control.
- You may have a severe headache.
- You may faint.
How do I know if I am having a stroke?
If you have any of the symptoms of a stroke, call 911 and
go to an emergency room right away. Every minute counts.
Your doctor will be able to tell you if it is a stroke.
These tests likely will be done:
- Lab tests of your blood.
- A brain scan to try to find out if there is a stroke.
- Ultrasound scan of blood vessels in your neck.
- Special X-rays of blood vessels in your brain.
- A test to see how your heart is working.
How is it treated?
The doctor may give you a medicine to break down blood
clots. These medicines must be given within 2 to 4 hours
after the stroke started. They can make symptoms go away
very quickly and prevent permanent injury.
After a stroke, you need to be watched and cared for. You
will likely stay in the hospital for a few days. You will
need bed rest. You may need an IV and oxygen. You will
need treatment for whatever caused the stroke.
You will start a rehabilitation program. The program may
start while you are in the hospital or a nursing facility.
It may last for weeks or months after you leave the
hospital. The program is made up of:
- Physical therapy. It helps you get back your muscle
strength. It teaches you ways to move safely even if
some of your muscles are weak or paralyzed.
- Occupational therapy. It will help you relearn how to
eat, dress, and take care of yourself.
- Speech therapy. It may help you if have problems
relearning to swallow, speak, or understand words.
How long will it take to get well?
How long it takes to get better depends on how badly the
brain was injured.
- Some things may get better in a few days or weeks.
- Other problems may take longer to improve.
- People can regain strength and their speech can get
better up to 1 year after a stroke.
Once your rehab is done, your doctor can tell you better
what you can expect.
How can I take care of myself?
Talk with your doctor about what caused your stroke. Follow
his or her advice about what to eat, how to exercise, and how
to handle stress.
How can I prevent having a stroke?
- If you have high blood pressure, be sure you take your
medicine.
- If you smoke, quit.
- Keep your diet low in fat. That will lower the chance
of getting fatty deposits in your blood vessels.
- Exercise every day. Ask your doctor for an exercise
program.
- Keep a healthy weight.
This content is reviewed periodically and is subject to
change as new health information becomes available. The
information is intended to inform and educate and is not a
replacement for medical evaluation, advice, diagnosis or
treatment by a healthcare professional.
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