The selective nature of the drug makes it preferable to other stress agents such as adenosine, which are less selective and therefore cause more side-effects. Regadenoson was approved by the United States Food and Drug Administration on April 10, 2008 and is marketed by Astellas Pharma under the tradename Lexiscan.
Human capital flight, sometimes called brain drain, refers to the emigration of intelligent, well-educated individuals for better pay or conditions, causing their places of origin to lose skilled people, or brains..
Some people have an increase of fluid in the brain. The extra fluid puts pressure on the brain. This is called intracranial (in-truh-KRAY-nee-ol) pressure. To reduce the pressure, the doctor can insert an EVD into the brain to drain the extra fluid.