brain, spinal cord, and nerve disorders
Stupor and Coma
Introduction
Stuporis unresponsiveness from which a person can be aroused only by vigorous, physical stimulation.Comais unresponsiveness from which a person cannot be aroused and in which the person's eyes remain closed, even when the person is stimulated. Stupor and coma are usually caused by a disorder, a drug, or an injury that affects large areas on both sides of the brain or specialized areas of the brain involved in maintaining consciousness. A physical examination, blood tests, brain imaging, and information from family and friends help doctors identify the cause. Doctors correct causes if possible, and take measures to support breathing and other body functions (such as mechanical ventilation) and to reduce pressure within the skull if it is increased. Recovery from coma depends largely on the cause. 