Brain Concussion
Synonyms
Brain Concussions
Cerebral Concussion
Cerebral Concussions
Commotio Cerebri
Concussion, Brain
Concussion, Cerebral
Concussion, Intermediate
Concussion, Mild
Concussion, Severe
Intermediate Concussion
Intermediate Concussions
Mild Concussion
Mild Concussions
Mild Traumatic Brain Injury
Severe Concussion
Severe Concussions
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)