What is a Concussion and What Are The Symptoms?

Dr. Dean Johnston, MD, MHSc, FRCPC, Neurologist, discusses concussion and the various symptoms of concussion.

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Dr. Dean Johnston, MD, MHSc, FRCPC, Neurologist, discusses concussion and the various symptoms of concussion.
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Featuring Dr. Dean Johnston, MD, MHSc, FRCPC, Neurologist

Duration: 1 minute, 17 seconds

A concussion is a brain injury due to trauma, usually a blow to the head, but it can also be associated with sudden deceleration or slowing down of the brain inside the skull, which can cause damage by the contact of the brain with the skull, or simply by tearing the neurons deep inside the brain.

Concussion causes immediate, but usually temporary, brain dysfunction. The common causes of concussion are motor vehicle accidents and sports.

It’s estimated, at least in the United States, that there may be between one and three million people who suffer concussion every year. A significant portion of those patients are high school students playing contact sports, for example.

Concussions can be mild or severe, but they’re always serious. Most people will recover from a concussion, and it’s rare for patients to have permanent injury from at least a single concussion.

But patients can be disabled by concussion symptoms for many weeks or months after the initial concussion. Loss of consciousness is not necessary to diagnose a concussion.

If you have other questions about concussion, you should contact your physician.

Presenter: Dr. Dean Johnston, Neurologist, Vancouver, BC

Local Practitioners: Neurologist

This content is for informational purposes only, and is not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of your physician or other qualified healthcare professional with any questions you may have regarding a medical condition.