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A concussion, also known as a mild traumatic brain injury (mTBI), is a head injury that temporarily affects brain functioning. [8] Symptoms may include headache, dizziness, difficulty with thinking and concentration, sleep disturbances, mood changes, a brief period of memory loss, brief loss of consciousness; problems with balance; nausea; blurred vision; and mood changes.
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Figure Skater Amber Glenn Suffered 'Severe' Concussion 1 Year Before Her Historic ISU Grand Prix Final Win. Rachel Flynn. December 29, 2024 at 5:00 AM. International Skating Union via Getty.
A concussion is a mild traumatic brain injury usually “caused by a bump, blow or jolt to the head or by a hit to the body that causes the head and brain to move rapidly back and forth ...
A CT of the head years after a traumatic brain injury showing an empty space where the damage occurred marked by the arrow. Improvement of neurological function usually occurs for two or more years after the trauma. For many years it was believed that recovery was fastest during the first six months, but there is no evidence to support this.
Second-impact syndrome (SIS) occurs when the brain swells rapidly, and catastrophically, after a person has a second concussion before symptoms from an earlier one have subsided. This second blow may occur minutes, days, or weeks after an initial concussion, [1] and even the mildest grade of concussion can lead to second impact syndrome. [2]
Twenty-one athletes had a history of concussion and 22 did not. Concussed athletes had their last injury at least nine months before the MRI scans, and half were 26 months or more post-concussion.
Immediately after a person hits their head and concussion is suspected they must be removed from the activity and require a medical assessment before returning to play. [37] [39] After an initial rest of 24 – 48 hours, activities should be gradually started again.