Researchers have been taking a closer look at what happens in the brain during and after a stroke, particularly at patterns of blood circulation. We need to rethink a basic rule that has guided stroke care for the past 25 years, declares the brain specialist who first proposed it. The study was published in the Journal of Stroke & Cerebrovascular Diseases.
A stroke occurs when the blood supply to a part of the brain stops and cells begin to die due to lack of oxygen and nutrients. There are two main types of stroke: ischemic and hemorrhagic. Ischemic strokes, which result from clots or blood vessel constrictions, are by far the most common. Hemorrhagic strokes occur when vessels burst.