Concussion Info

What is a concussion?

Concussion is a brain injury that may be caused by a direct blow to the head, face, neck or elsewhere on the body with an ‘‘impulsive’ force transmitted to the head. Concussions typically results in the quick onset of short-lived impairment of neurological function that resolves spontaneously. However, in some cases, symptoms and signs may evolve over minutes to hours.

Concussion symptoms reflect a disturbance in function, not a structural injury. No abnormality from concussion is seen on standard structural neuroimaging studies such as CT scans or MRIs. Concussion results in a number of symptoms that may or may not involve loss of consciousness or brief memory loss. Recovery from the mental and physical symptoms typically follows a sequential course. Current data reports that 80% of adult concussion resolve within 10 days, however it is important to note that in some cases, symptoms may be prolonged. (zurich consensus)

Video Resources

Concussion Management 01:19
Dr. Mike Evans is founder of the Health Design Lab at the Li Ka Shing Knowledge Institute, an Associate Professor of Family Medicine and Public Health at the University of Toronto, and a staff physician at St. Michael's Hospital.
Concussions 101, a Primer for Kids and Parents 05:51
The symptoms of a concussion can be tough for kids to recognize.. Dr. Mike Evans is founder of the Health Design Lab at the Li Ka Shing Knowledge Institute, an Associate Professor of Family Medicine and Public Health at the University of Toronto, and a staff physician at St. Michael's Hospital.