Other terms
Brain Concussions,Concussion, Brain,Commotio Cerebri,Cerebral Concussion,Cerebral Concussions,Concussion, Cerebral,Concussion, Mild,Mild Concussion,Mild Concussions,Concussion, Severe,Severe Concussion,Severe Concussions,Concussion, Intermediate,Intermediate Concussion,Intermediate Concussions
Description
Brain Concussion: A nonspecific term used to describe transient alterations or loss of consciousness following closed head injuries. The duration of UNCONSCIOUSNESS generally lasts a few seconds, but may persist for several hours. Concussions may be classified as mild, intermediate, and severe. Prolonged periods of unconsciousness (often defined as greater than 6 hours in duration) may be referred to as post-traumatic coma (COMA, POST-HEAD INJURY). (From Rowland, Merritt's Textbook of Neurology, 9th ed, p418)
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