• second-impact syndrome

secondimpactsyndrome (usuallyuncountable,pluralsecond impact syndromes)

1. Arapid andseverebrainswelling caused by a secondconcussion before thefirst one hassufficiently healed,resulting in possibledeath orpermanentdisability.

   Synonym:(initialism)SIS

   Coordinate terms:chronic traumatic encephalopathy,post-concussion syndrome

• second impact syndrome on Wikipedia.Wikipedia

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