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Post-concussion syndrome (PCS), also known as persisting symptoms after concussion, is a set of symptoms that may continue for weeks, months, or years after a concussion. PCS is medically classified as a mild traumatic brain injury (TBI).
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 ]
Up to one-third of people with concussion experience longer or persisting concussion symptoms, also known as post concussion syndrome or persisting symptoms after concussion, which is defined as concussion symptoms lasting for 4 weeks or longer in children and adolescents, and symptoms lasting for more than 14 days in an adult.
The relative risk of post-traumatic seizures increases with the severity of traumatic brain injury. [20] Pain, especially headache, is a common complication following a TBI. [1] Being unconscious and lying still for long periods can cause blood clots to form (deep venous thrombosis), which can cause pulmonary embolism. [21]
Post-concussion syndrome is believed to be able to arise for reasons aside from sustaining a (mild) traumatic brain injury. In one study, health professionals cited organic causes in general as being most responsible for the development of PCS; however, emotional and compensatory causes have also been implicated as factors. [13]
In fact, the most common cause of concussion is a fall. Which means older adults are more vulnerable. ... “It can take a while to recover from a concussion, due to post-concussion syndrome ...
A concussion can cause headaches, changes in alertness, loss of consciousness, memory loss, and changes in thinking, according to Penn Medicine. In rare cases, these effects can be long-lasting ...
The amount of time that the amnesia is present correlates with the severity of the injury. In all cases, the patients develop post concussion syndrome, which includes memory problems, dizziness, tiredness, sickness and depression. Cerebral concussion is the most common head injury seen in children. [9]