What is a
Cerebrovascular accident (CVA) is the medical term for a stroke. A stroke is when
blood flow to a part of your brain is stopped either by a blockage or the
rupture of a blood vessel. There are important signs of a stroke that you
should be aware of and watch out for.
Seek medical attention immediately if you think that you or
someone around you might be having a stroke. The more quickly you receive treatment,
the better the prognosis, as a stroke left untreated for too long can result in
permanent brain damage.
of cerebrovascular accident
There are two main types of cerebrovascular accident, or
stroke: an ischemic stroke is caused by a blockage; a hemorrhagic
stroke is caused by the
rupture of a blood vessel. Both types of stroke deprive part of the brain of
blood and oxygen, causing brain cells to die.
An ischemic stroke is the most common and occurs when a
blood clot blocks a blood vessel and prevents blood and oxygen from getting to
a part of the brain. There are two ways that this can happen. One way is an embolic
stroke, which occurs when a clot forms somewhere else in your body and gets
lodged in a blood vessel in the brain. The other way is a thrombotic stroke,
which is when the clot forms in a blood vessel within the brain.
A hemorrhagic stroke occurs when a blood vessel ruptures, or
hemorrhages, and then prevents blood from getting to part of the brain. The
hemorrhage may occur in any blood vessel in the brain, or it may occur in the
membrane surrounding the brain.
of a cerebrovascular accident
The quicker you can get a diagnosis and treatment for a
stroke, the better your prognosis will be. For this reason, it’s important to
understand and recognize the symptoms of a stroke.
Stroke symptoms include:
- difficulty walking
- loss of balance and coordination
- difficulty speaking or understanding others who are
- numbness or paralysis in the face, leg, or arm, most
likely on just one side of the body
- blurred or darkened vision
- a sudden headache, especially when accompanied by
nausea, vomiting, or dizziness
The symptoms of a stroke can vary depending on the
individual and where in the brain it has happened. Symptoms usually appear
suddenly, even if they’re not very severe, and they may become worse over time.
Remembering the acronym "FAST" helps people recognize the
most common symptoms of stroke:
Does one side of the face droop?
- Arm: If
a person holds both arms out, does one drift downward?
Is their speech abnormal or slurred?
It’s time to call 911 and get to the hospital if any of these symptoms are
of a cerebrovascular accident
Healthcare providers have a number of tools to determine whether
you’ve had a stroke. Your healthcare provider will administer a full physical
examination, during which they’ll check your strength, reflexes, vision, speech,
and senses. They’ll also check for a particular sound in the blood vessels of
your neck. This sound, which is called a bruit, indicates abnormal blood flow.
Finally, they will check your blood pressure, which may be high if you’ve had a
Your doctor may also perform diagnostic tests to discover
the cause of the stroke and pinpoint its location. These tests may include one
or more of the following:
- Blood tests: Your healthcare provider
may want to test your blood for clotting time, blood sugar levels, or
infection. These can all affect the likelihood and progression of a
- Angiogram: An angiogram, which
involves adding a dye to your blood and taking an X-ray of your head, can
help your doctor find the blocked or hemorrhaged blood vessel.
- Carotid ultrasound: This test uses sound
waves to image the blood vessels in your neck. This test can help your
provider determine if there’s abnormal blood flow toward your brain.
- Computed tomography (CT) scan: A CT scan is often
performed soon after symptoms of a stroke develop. The test can help your
provider find the problem area or other problems that might be associated
- Magnetic resonance
An MRI can provide a more detailed picture of the brain compared to CT
- Echocardiogram: This imaging technique
uses sound waves to create a picture of your heart. It can help your
provider find the source of blood clots.
- Electrocardiogram (EKG): This is an
electrical tracing of your heart. This will help your provider determine
if an abnormal heart rhythm is the cause of a stroke.
for a cerebrovascular accident
Treatment for stroke depends on the type of stroke you’ve
had. The goal of treatment for ischemic stroke, for instance, is to remove the
blockage. Treatments for hemorrhagic stroke are aimed at controlling the
Ischemic stroke treatment
To treat an ischemic stroke, you may be given a
clot-dissolving drug or a blood thinner. You may also be given aspirin to
prevent a second stroke. Emergency treatment for this type of stroke may
include injecting medicine into the brain or removing a blockage with surgery.
For a hemorrhagic stroke, you may be given a drug that
lowers the pressure in your brain caused by the bleeding. If the bleeding is
severe, you may need surgery to remove excess blood. It’s also possible that
you will need surgery to repair the ruptured blood vessel.
Long-term outlook for a cerebrovascular accident
There’s a recovery period after having any kind of stroke, the
length of which varies depending on how severe the stroke was. You may need to
participate in rehabilitation because of the stroke’s effects on your health,
particularly any disabilities it may cause. This can include speech therapy or
occupational therapy, or work with a psychiatrist, neurologist, or other
Your long-term outlook after a stroke depends on a few
- the type of stroke
- how much damage it causes to your brain
- how quickly you’re able to receive treatment
- your overall health
The long-term outlook after an ischemic stroke is better
than after a hemorrhagic stroke.
Common complications resulting from a stroke include
difficulty speaking, swallowing, moving, or thinking. These can improve over
the weeks, months, and even years after a stroke.
Prevention of a
There are many risk factors for having a stroke, including diabetes, atrial
fibrillation, and hypertension
(high blood pressure).
Correspondingly, there are many measures you can take to
help prevent stroke. Preventive measures for stroke are similar to the actions
that you would take to help prevent heart disease. Here are a few ways to
reduce your risk:
- Maintain normal blood pressure.
- Limit saturated fat and cholesterol intake.
- Refrain from smoking, and drink alcohol in moderation.
- Control diabetes.
- Maintain a healthy weight.
- Get regular exercise.
- Eat a diet rich in vegetables and fruits.
Your healthcare provider may prescribe medications for
preventing stroke if they know you’re at risk. Possible preventive medications
for stroke include drugs that thin the blood and prevent clot formation.