A stroke is the sudden interruption of the cerebral circulation in a particular region, it is characterized above all by its establishment abruptly, and tends to affect mostly older people with risk factors that facilitate its appearance.
Mainly there are two types of strokes: ischemic stroke and hemorrhagic stroke.
The ischemic stroke are the most common and are caused by the reduced blood flow of a brain area, which produces a stroke, since due to lack of oxygen and nutrients, brain cells die and thus there is a loss of brain function.
In contrast, hemorrhagic strokes, which are much less frequent, are produced by the rupture of a cerebral blood vessel.
How to prevent Stroke?
Strokes, but appear abruptly, yes preventable, especially by controlling the main risk factors, which are now well known and clearly defined their relationship with the higher frequency of stroke. There are some on which we can not act, such as age, greatly increasing the risk of stroke from 60 years, sex, strokes are more common in men, or blacks. However, there are many on which you can act, being the most important and you should focus on health care, the most common: hypertension, diabetes, snuff, heart disease or cholesterol.
How to know before Stroke?
A stroke or cerebrovascular accident is the loss of brain function due to interruption of cerebral blood flow and resulting symptoms depend on the area where it occurs.
Sometimes it can go unnoticed and cause no symptoms, however in most cases it is a serious situation, being the most common symptoms of power loss of an arm or leg, facial paralysis, difficulty walking, the slurred speech, loss of vision or headaches and dizziness.
Once you have had a stroke, there is a high probability of repeat a similar picture, which is very important to determine, as it is crucial for prognosis and patient outcomes. This is done by measuring phospholipase A2, which recent studies have established that changes in its concentration may prevent the possibility of a patient having a stroke again, even in those patients who have mild symptoms or short in length and have not been sequels. So this discovery is a breakthrough in terms of prognosis, prediction and treatment of stroke patients.