About Stroke
(Congestion cerebral ischemic stroke, cerebrovascular haemorrhage)
A stroke is characterized by a sudden loss of brain function due to an interruption of blood flow to the brain as a result of ischemic stroke (caused by the formation of a blood clot) or cerebrovascular bleeding ( caused by the rupture of a vessel and subsequent bleeding into or around the brain).
The interruption of blood flow to the brain causes the destruction of nerve cells (neurons). The effects of a stroke depend on the part of the brain that was injured and the extent of the damage that results. Approximately 80% of strokes are ischemic and 20% are hemorrhagic.
Stroke is a leading cause of disability worldwide, and Canada, approximately 300,000 people are living with the consequences of stroke. It is also the third leading cause of death in Canada . Approximately 60% of people who have a stroke are dealing with a form of disability such as paralysis, loss of sensation, memory lapses, speech disorders and vision problems. Some people may also suffer from depression or other emotional problems after a stroke.
It is possible to minimize the risk of stroke by modifying risk factors, by using drugs and, in some cases, surgery .
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