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KLASA B
Dołączył: 15 Mar 2011
Posty: 48
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Ostrzeżeń: 0/5 Skąd: England
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Wysłany: Czw 10:25, 07 Kwi 2011 |
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The sad thing about Strokes is that they kill a portion of patients – and leave most others paralysed in some form or another [link widoczny dla zalogowanych], thus placing a burden on their families as well as a great deal of suffering on themselves.
getting our blood pressure checked at least once a year – and if high, taking steps to get the pressure back to normal levelsgetting our blood sugar checked annually – and if we are found to have Diabetes [link widoczny dla zalogowanych], making an effort to properly manage our Diabetesgetting our heart checked – because an irregular heart beat (termed atrial fibrillation) can result in blood clots shooting off into the c
There are several measures that we as individuals can undertake to reduce our own risk of having a CVA. The most important are
Ischaemic strokes are much more common. They happen when an artery (blood vessel) carrying blood to the brain becomes narrowed by a fatty substance termed atheroma that gets deposited on its inner wall. If a tiny blood clot (which would usually pass through a normal sized artery) gets stuck in such a narrowed artery, blood flow stops – and the region of brain that is starved of oxygen-carrying blood dies. It is the same as happens to the heart when it suffers a heart attack due to blocked coronary arteries.
Read on
Cholesterol and Heart Disease
Symptoms and Risks of Strokes
Incidents of Stroke Rise in Younger People
Risk Factors for Strokes
Because the brain controls movements and sensation as well as higher functions such as speech, sight and smell, damage to the area of brain that controls a particular function results in loss of that function. The regions of the brain commonly damaged are the Speech area (which is responsible for recognising words and articulating sounds) and the Motor area (which controls movement).This explains the usual consequence of a stroke - like slurred speech or lack of speech [link widoczny dla zalogowanych], and paralysis or inability to move a limb or limbs on one side of the body.
Damage to Brain Results in Loss of Brain Function
Strokes may be of two types:
Ischaemia or Haemorrhage?
Certain Risk Factors make a person vulnerable to Stroke. If we understand that the whole circulatory tree is one entity, we can appreciate that these are the same Risk Factors associated with heart attacks.
Cerebrovascular Accident
High on this list are high blood pressure and diabetes. About half the patients who suffer a stroke have uncontrolled high blood pressure at the time of their attack – and over a quarter have diabetes. Regrettably, many who have high blood pressure and diabetes do not even know that they have these diseases!
To most folk, the only experience they have of this condition is that they know someone who is paralysed or left with badly impaired speech after suffering a Stroke.
The term 'Stroke' is derived from the fact that the person who suffers a Stroke is "Struck down" by the event – which occurs when blood flow to the brain is suddenly cut off. What happens to the brain as a consequence is very similar to what happens to the heart when someone suffers a heart attack, which is the result of the blood flow to the heart being suddenly blocked by a clot in the coronary arteries.
Reduce Risk of Getting a Stroke
Ischaemic stroke - when an artery carrying blood to the brain gets blocked, usually by a small clotHaemorrhagic stroke - when an artery ruptures and bleeds into the brain tissue surrounding it.
Doctors today prefer to use the term ‘CerebroVascular Accident’ (CVA) or even "Brain Attack" instead of this old term ‘Stroke’.
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