Patient Care. For 6 to 8 hours prior to the examination the patient is not allowed to take any food or liquids by mouth. The stomach should be empty during the procedure to facilitate inspection of its lining and to avoid vomiting and aspiration of liquids into the lungs.atient Care. For 6 to 8 hours prior to the examination the patient is not allowed to take any food or liquids by mouth. The stomach should be empty during the procedure to facilitate inspection of its lining and to avoid vomiting and aspiration of liquids into the lungs.
Cerebrovascular Disease. The word cerebrovascular is made up of two parts â cerebro which refers to the large part of the brain, and vascular which means arteries and veins. Together, the word cerebrovascular refers to blood flow in the brain. The term cerebrovascular disease includes all disorders in which an area of the brain is temporarily or permanently affected by ischemia or bleeding and one or more of the cerebral blood vessels are involved in the pathological process.
From Wikipedia, the free encyclopedia. Cerebral autoregulation is a process in mammals, which aims to maintain adequate and stable cerebral blood flow. While most systems of the body show some degree of autoregulation, the brain is very sensitive to over- and underperfusion. Cerebral autoregulation plays an important role in maintaining an appropriate blood flow to that region. Brain perfusion is essential for life since the brain has a high metabolic demand.