What is a stroke? What
causes a stroke?
A stroke is a condition in which the brain cells suddenly die because of a lack of oxygen.
A stroke can be caused by an obstruction in the blood flow, or the rupture of an artery that feeds the brain.
The patient may suddenly lose the ability to speak, there may be memory problems, or one side of the body can become paralyzed
Who gets stroke?
Anyone can suffer from stroke. Although many risk factors are out of our control, several can be kept in line through proper nutrition and medical care.
Risk factors for stroke include the following:
Age - as you get older your risk increases.
Being male.
A family history of stroke.
High blood pressure.
High cholesterol.
Smoking cigarettes.
Diabetes.
Obesity and overweight.
A previous stroke or transient ischemic attack (TIA).
High levels of homocysteine (an amino acid in blood).
Divorced men have a higher risk of stroke.
What are the symptoms of stroke?
Trouble walking, loss of balance and coordination.
Speech problems.
Dizziness.
Numbness, weakness, or paralysis.
Blurred, blackened, or double vision.
Sudden severe headache.
Confusion.
How is stroke diagnosed?Doctor assesses an MRI brain scan
Doctor assessing an MRI brain scan.
A stroke is a medical emergency, and anyone suspected of having one should be taken to hospital immediately so that tests can be run and the correct treatment can be provided as quickly as possible.
Physicians have several tools available to screen for stroke risk and diagnose an active stroke. These include:
Physical assessment - blood pressure tests and blood tests to see cholesterol levels, blood sugar levels, and amino acid levels.
Ultrasound - a wand waved over the carotid arteries in the neck can provide a picture that shows whether there is any narrowing or clotting.
Arteriography - a catheter is inserted into the arteries to inject a dye that can be picked up by X-rays.
Computerized tomography (CT) scan - a scanning device that creates a 3-D image that can show aneurysms, bleeding, or abnormal vessels within the brain.
Magnetic resonance imaging (MRI) - a magnetic field generates a 3-D view of the brain to look at tissue damaged by stroke.
CT and MRI with angiography - scans that are aided by a dye that is injected into the blood vessels in order to provide clearer and more detailed images.
Echocardiography - an ultrasound that makes images of the heart to check for embolus.
Eye-movement analyzer may diagnose stroke - researchers from Johns Hopkins University School of Medicine in Baltimore created a device that can help diagnose stroke by expertly analyzing eye movements. They reported their findings in the journal Stroke. The electronic device is a small, portable, video-oculography machine. It detects eye movements that most doctors find hard to notice.
A stroke is a condition in which the brain cells suddenly die because of a lack of oxygen.
A stroke can be caused by an obstruction in the blood flow, or the rupture of an artery that feeds the brain.
The patient may suddenly lose the ability to speak, there may be memory problems, or one side of the body can become paralyzed
Who gets stroke?
Anyone can suffer from stroke. Although many risk factors are out of our control, several can be kept in line through proper nutrition and medical care.
Risk factors for stroke include the following:
Age - as you get older your risk increases.
Being male.
A family history of stroke.
High blood pressure.
High cholesterol.
Smoking cigarettes.
Diabetes.
Obesity and overweight.
A previous stroke or transient ischemic attack (TIA).
High levels of homocysteine (an amino acid in blood).
Divorced men have a higher risk of stroke.
What are the symptoms of stroke?
Trouble walking, loss of balance and coordination.
Speech problems.
Dizziness.
Numbness, weakness, or paralysis.
Blurred, blackened, or double vision.
Sudden severe headache.
Confusion.
How is stroke diagnosed?Doctor assesses an MRI brain scan
Doctor assessing an MRI brain scan.
A stroke is a medical emergency, and anyone suspected of having one should be taken to hospital immediately so that tests can be run and the correct treatment can be provided as quickly as possible.
Physicians have several tools available to screen for stroke risk and diagnose an active stroke. These include:
Physical assessment - blood pressure tests and blood tests to see cholesterol levels, blood sugar levels, and amino acid levels.
Ultrasound - a wand waved over the carotid arteries in the neck can provide a picture that shows whether there is any narrowing or clotting.
Arteriography - a catheter is inserted into the arteries to inject a dye that can be picked up by X-rays.
Computerized tomography (CT) scan - a scanning device that creates a 3-D image that can show aneurysms, bleeding, or abnormal vessels within the brain.
Magnetic resonance imaging (MRI) - a magnetic field generates a 3-D view of the brain to look at tissue damaged by stroke.
CT and MRI with angiography - scans that are aided by a dye that is injected into the blood vessels in order to provide clearer and more detailed images.
Echocardiography - an ultrasound that makes images of the heart to check for embolus.
Eye-movement analyzer may diagnose stroke - researchers from Johns Hopkins University School of Medicine in Baltimore created a device that can help diagnose stroke by expertly analyzing eye movements. They reported their findings in the journal Stroke. The electronic device is a small, portable, video-oculography machine. It detects eye movements that most doctors find hard to notice.
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