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Complications
By Mayo Clinic staffPostconcussion syndrome, a poorly understood complication, causes concussion symptoms to last for weeks or months. People who have had a concussion also double their risk of developing epilepsy within the first five years after the injury.
There also is evidence that people who have had multiple concussions over the course of their lives experience cumulative neurological damage. A link between multiple concussions and the eventual development of Alzheimer's disease also has been suggested.
- Minor head injury. American Academy of Pediatrics. http://www.aap.org/publiced/BR_HeadInjury.htm. Accessed Feb. 12, 2009.
- Heegaard WG, et al. System injuries. In: Marx JA, et al., eds. Marx: Rosen's Emergency Medicine: Concepts and Clinical Practice. 6th ed. St. Louis, Mo.: Mosby; 2006:349.
- Concussion. http://www.merck.com/mmhe/sec06/ch087/ch087c.html. Accessed Jan. 15, 2009.
- Evans RW. Concussion and mild traumatic brain injury. http://www.uptodate.com/home/index.html. Accessed Jan. 15, 2009.
- Living with brain injury. Brain Injury Association of America. http://www.biausa.org/education.htm#concussion. Accessed Feb. 15, 2009.
- Evans RW, et al. Traumatic disorders. In: Goetz GD. Textbook of Clinical Neurology. 3rd ed. Philadelphia, Pa.: W.B. Saunders; 2007:1185.
- Concussion. American Association of Neurological Surgeons. http://www.neurosurgerytoday.org/what/patient_e/concussion.asp. Accessed Jan. 15, 2009.
- DePompolo RW (expert opinion). Mayo Clinic, Rochester, Minn. Feb. 3, 2009.
