ISSN: 2044-9038 (Print) 2044-9046 (Electronic)

Clinical Practice

Stroke

 A stroke occurs when a vessel within the brain ruptures and bleeds, or when there’s a blockage within the blood supply to the brain. The rupture or blockage stops blood and oxygen from reaching the brain’s tissues.   A stroke may be a sudden interruption within the blood supply of the brain. Most strokes are caused by an abrupt blockage of arteries resulting in the brain (ischemic stroke). Other strokes are caused by bleeding into brain tissue when a vessel bursts (hemorrhagic stroke). Because stroke occurs rapidly and requires immediate treatment, stroke is additionally called a brain attack. When the symptoms of a stroke last only a brief time (less than an hour), this is often called a transient ischemic attack (TIA) or mini-stroke. The effects of a stroke depend upon which a part of the brain is injured, and the way severely it's injured. Strokes may cause sudden weakness, loss of sensation, or difficulty with speaking, seeing, or walking. Since different parts of the brain control different areas and functions, it's usually the world immediately surrounding the stroke that's affected. Sometimes people with stroke have a headache, but stroke also can be completely painless. It is vital to acknowledge the warning signs of stroke and to urge immediate medical attention if they occur.

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