A stroke occurs when blood flow to part of the brain is cut off or reduced. This prevents brain tissue from getting oxygen and nutrients. Brain cells begin to die within minutes.
Stroke is a medical emergency, and prompt treatment is critical. Early treatment can reduce brain damage and other complications
Trouble speaking and understanding what others are saying
Paralysis or numbness of the face, arm, or leg may occur
Vision problems in one or both eyes
Seek medical attention right away if you notice any signs or symptoms of a stroke, even if they seem to come and go or go away completely. Think fast and do the following:
the face. Ask the person to smile. Does one side of the face droop?
arms. Ask the person to raise their arms. Does one arm go down?
Or is he unable to lift one arm? Speech (speak). Ask the person to repeat a simple phrase. Is his way of speaking confused or strange?
the time. If you notice any of these signs, call 911 or emergency medical help right away
There are two main causes of stroke: the result of a blocked artery (ischemic stroke) or a leaking or bursting blood vessel (hemorrhagic stroke). Some people may experience a temporary decrease in blood flow to the brain, known as a transient ischemic attack, or TIA, that does not cause permanent symptoms.
This is the most common type of stroke. It occurs when the blood vessels supplying the brain with blood become narrowed or blocked, resulting in a severe reduction in blood flow (ischemia). A blockage or narrowing of blood vessels is caused by a buildup of fatty deposits, blood clots, or other deposits in the bloodstream that lodge in a blood vessel in the brain.
Some preliminary research suggests that COVID-19 infection may be a possible cause of ischemic stroke, but more studies are needed.
A hemorrhagic stroke occurs when a blood vessel in the brain leaks or ruptures. Bleeding within the brain can result from many conditions that affect the blood vessels. Factors related to hemorrhagic stroke include the following
Uncontrolled high blood pressure
Swelling at weak points in blood vessel walls (aneurysm)
Protein deposits in the walls of blood vessels that lead to weakness in the vessel wall (amyloidal encephalopathy)
Ischemic stroke leads to bleeding
A less common cause of bleeding in the brain is a rupture of an abnormal tangle of thin-walled blood vessels (arteriovenous malformation).
Regulating high blood pressure (hypertension)
Reduce the amount of cholesterol and saturated fats in your diet
Quit smoking of all kinds
Maintain a healthy weight
Eat a diet rich in fruits and vegetables
To treat an ischemic stroke, doctors must quickly restore blood flow to the brain. This can be done by: Intravenous medications in emergency situations. In the case of intravenous administration, treatment with clot-busting drugs should begin within 4 to 5 hours of the onset of symptoms.