Stroke: Symptoms, Causes, Treatment

Author: Disabled World - Contact Details
Updated/Revised Date: 2022/04/12
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Synopsis: Information on different types of strokes. Includes symptoms of having a stroke, causes, treatment methods, and what to do if a person is having a stroke. There are two main types of strokes. When the arteries carrying blood to the brain are abruptly blocked, it is called an ischemic stroke. When a blood vessel bursts and blood seeps into the brain tissue, it is known as a hemorrhagic stroke. According to neurologists, if a stroke can be immediately recognized and medical attention made available within three hours, it is normally possible to reverse the effects, often completely. The problem is that strokes are frequently unrecognized, since most people are unaware of the symptoms.


Main Document

What is a Stroke?

A stroke, sometimes referred to as a cerebrovascular accident (CVA), cerebrovascular insult (CVI), or colloquially called a brain attack, is the loss of brain function due to a disturbance in the blood supply to the brain. This disturbance is due to either ischemia (lack of blood flow) or hemorrhage. As a result, the affected area of the brain cannot function normally, which might result in an inability to move one or more limbs on one side of the body, failure to understand or formulate speech, or a vision impairment of one side of the visual field.

A stroke occurs when the supply of blood to the brain is suddenly interrupted.

There are two main types of strokes.

Other Types of Strokes Include:

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Fig. 1 - Illustration of a transient ischemic stroke.
Fig. 1 - Illustration of a transient ischemic stroke.

Stroke Symptoms

According to neurologists, if a stroke can be immediately recognized and medical attention made available within three hours, it is normally possible to reverse the effects, often completely. The problem is that strokes are frequently unrecognized, since most people are unaware of the symptoms. A severe stroke, if not treated in time, can result in death.

Even if the stroke is not fatal, it may cause neurological damage that will leave the patient incapacitated for life. The brain is one of the most complex organs in the body. Even if other organs fail, the brain may continue to keep functioning. But when the brain stops functioning completely - brain death - the other organs have nothing to control them and gradually die also.

The effects of a stroke depend on the location of the obstruction - which part of the brain is deprived of blood - and the amount of tissue damage. One side of the brain controls the opposite side of the body and also specific organs, so a stroke occurring on the right side of the brain could result in, among others:

A stroke on the left side of the brain may cause:

Warning Signs of a Stroke

Remember that these symptoms maybe transitory. Do not ignore any of these symptoms, even if these seem to disappear in a few seconds or minutes and the person appears to be fine. If a stroke has occurred, brain damage need not be immediately apparent and signs may not surface for several hours, by which time it may be too late to help.

There is a simple and medically approved way to see if a person has suffered as stroke. It is called STR and is worth remembering.


Smile - Ask the person suspected of having had a stroke to smile.

Talk - Ask the person to speak a simple sentence: describe what kind of car he owns or where he lives.

Raise - Ask the person to raise his arms above his head.

Doctors suggest one other way to know if a person has suffered a stroke - ask the person to stick out his tongue. If his tongue is not straight or droops or slants to one side rather than coming straight out of his mouth, it is an indication of a stroke. If the person has difficulty in performing any one of these tasks, it is more than likely he has suffered a stroke and medical help should be IMMEDIATELY called for.

Until help arrives, caring for a stroke victim is limited to offering support to the victim. But this is important and may prevent further deterioration of the condition while waiting for medical help - If there is someone available with CPR training, the victim's circulation, breathing, and airway should be checked as per standard CPR procedure. The paramedics should be briefed, when they arrive, on symptoms observed and action taken.

Strokes are the third-largest killers in America, after heart disease and cancer. There is a relationship between high blood pressure, snoring, and strokes. Various systems have been proposed to increase recognition of stroke by patients, relatives, and emergency first responders. Sudden-onset face weakness, arm drift, and abnormal speech are the findings most likely to lead to the correct identification of a case of stroke.

Facts and Statistics Regarding Strokes

Hypertension (high blood pressure) accounts for 35 to 50% of stroke risk.

Blood pressure reduction of 10 mmHg systolic or 5 mmHg diastolic reduces the risk of stroke by ~40%. Lowering blood pressure has been conclusively shown to prevent both ischemic and hemorrhagic strokes. It is equally important in secondary prevention. Even patients older than 80 years and those with isolated systolic hypertension benefit from antihypertensive therapy.

The available evidence does not show large differences in stroke prevention between antihypertensive drugs - therefore, other factors such as protection against other forms of cardiovascular disease should be considered and cost. The routine use of beta-blockers following a stroke or TIA has not been shown to result in benefits.

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