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If symptoms are not resolved by one year, they are likely to be permanent, though improvements may occur after even two or three years, [43] or may suddenly occur after a long time without much improvement. [61] Older people and those who have previously had another head injury are likely to take longer to recover. [61]
All documented cases occurred in people younger than 20 except in boxing. [10] As of 2000, the syndrome had never been reported in the medical literature in children younger than adolescent age. [12] Young athletes have been found to be both more susceptible to concussions and more likely to get second-impact syndrome than their older ...
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.
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]
Acute concussion symptoms (those that occur shortly after an injury) should not be confused with CTE. Differentiating between prolonged post-concussion syndrome (PCS, where symptoms begin shortly after a concussion and last for weeks, months, and sometimes even years) and CTE symptoms can be difficult.
Acquired brain injury (ABI) is a term used to differentiate brain injuries occurring after birth from injury, from a genetic disorder, or from a congenital disorder. [2] Unlike a broken bone where trauma to the body is obvious, head trauma can sometimes be conspicuous or inconspicuous.
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The duration of PTA in brain-injured patients is a useful predictor of the expected long-term effects of the injury, [36] along with the duration of loss of consciousness(LOC), and scores on the Glasgow Coma Scale (GCS), which measures degrees of consciousness, with higher scores indicating higher levels of functioning. A score of three ...