Svensk definition
Ospecifik benämning på övergående medvetanderubbningar eller medvetslöshet efter slutna huvudskador. Medvetslösheten varar vanligen några sekunder, men kan bestå i flera timmar. Hjärnskakningen kan be tecknas som lätt, måttlig eller svår. Längre perioder (>6 timmar) av medvetslöshet kallas ofta posttraumatisk koma.
Engelsk definition
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)
Svenska synonymer
Hjärnkonkussion — Allvarlig hjärnskakning — Mild hjärnskakning — Commotio cerebri
Engelska synonymer
Brain Concussions — Concussion, Brain — Commotio Cerebri — Cerebral Concussion — Cerebral Concussions — Concussion, Cerebral — Concussion, Intermediate — Intermediate Concussion — Intermediate Concussions — Concussion, Severe — Severe Concussion — Severe Concussions — Concussion, Mild — Mild Concussion — Mild Concussions — Mild Traumatic Brain Injury