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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 ]
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 is a result of a second head injury before the brain has adequate time to heal between concussions. [3] It typically give signs and symptoms of a post-concussion syndrome (visual, motor, or sensory abnormalities and difficulties with cognitive processes).
Multiple head injuries that occur close together can potentially cause second impact syndrome ... It refers to situations where someone sustains a second brain injury before recovering from the ...
Second Impact can refer to: Second impact (safety) , the impact suffered by a vehicle occupant between his body and whatever stops it from moving inside the vehicle in a crash Second-impact syndrome , a rare, deadly condition in which the brain swells as the result of a concussion received before symptoms from another concussion have gone away
A young person who receives a second concussion before symptoms from another one have healed may be at risk for developing a very rare but deadly condition called second-impact syndrome, in which the brain swells catastrophically after even a mild blow, with debilitating or deadly results.
Famed Canadian singer is the subject of a new documentary that details her struggles with a rare and incurable neurological condition
Second-impact syndrome, in which the brain swells dangerously after a minor blow, may occur in very rare cases. [130] The condition may develop in people who receive a second blow days or weeks after an initial concussion before its symptoms have gone away. [27]