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A diagnosis may be made when symptoms resulting from concussion last for more than three months after the injury. [8] [9] [6] Loss of consciousness is not required for a diagnosis of concussion or post-concussion syndrome. [10]
But the recovery time can vary. Up to about 1/3 of people experience persisting symptoms after concussion (PHAC) or persistent post concussion symptoms (PPAC), defined as symptoms that last more than 4 weeks. [5] [6] [7] After an injury, concussion symptoms can begin immediately or be and delayed by 1-2 days at most. [8]
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.
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.
The test, which can be self-administered or given by an interviewer, asks patients to rate the severity of 16 different symptoms commonly found after a mild traumatic brain injury (MTBI). [6] Patients are asked to rate how severe each of the 16 symptoms has been over the past 24 hours.
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 ...
Ridley was knocked unconscious, with medical professionals declaring it fencing response. Steven went on to have a full recovery, a long career, and became a Super Bowl champion . He has not reported any signs of permanent brain damage since. [14] Kenny Shaw, NCAA football wide receiver for Florida State, September 17, 2011. [15]
Traumatic brain injury (TBI, physical trauma to the brain) can cause a variety of complications, health effects that are not TBI themselves but that result from it. The risk of complications increases with the severity of the trauma; [1] however even mild traumatic brain injury can result in disabilities that interfere with social interactions, employment, and everyday living. [2]