Cumulative effects of concussion in high school athletes

Michael W. Collins, Mark R. Lovell, Grant L. Iverson, Robert C. Cantu, Joseph C. Maroon, Melvin Field, Julian E. Bailes, Alex B. Valadka, Ross Bullock

Research output: Contribution to journalArticle

309 Citations (Scopus)

Abstract

OBJECTIVE: A common assumption in sports medicine is that a history of concussion is predictive of a lower threshold for, as well as a worse outcome after, subsequent concussive injury. The current study was conducted to investigate the relationship between concussion history in high school athletes and the on-field presentation of symptoms after subsequent concussion. METHODS: One hundred seventy-three athletes who experienced sports-related concussion composed the initial study group. Binary groups were subsequently created on the basis of concussion history. Sixty athletes with no concussion history were compared with 28 athletes with a history of three or more concussions. The groups were compared in terms of the on-field presentation of symptoms after an in-study concussion. Dependent variables included the postinjury presence of loss of consciousness, anterograde amnesia, retrograde amnesia, and confusion. RESULTS: Athletes with three or more prior concussions were more likely to experience on-field positive loss of consciousness (X2 = 8.0, P = 0.005), anterograde amnesia (X2 = 5.5, P = 0.019), and confusion (X2 = 5.1, P = 0.024) after a subsequent cerebral concussion. An odds ratio revealed that athletes with a history of three concussions were 9.3 times more likely than athletes with no history of concussion to demonstrate three to four abnormal on-field markers of concussion severity. CONCLUSION: This study is the first to suggest a cumulative effect of concussion in high school athletes. A more severe on-field presentation of concussion markers is evidenced in high school athletes with a pronounced history of concussion. This study's findings highlight the need for more long-term outcome studies in high school athletes who sustain sports-related concussions.

Original languageEnglish (US)
Pages (from-to)1175-1181
Number of pages7
JournalNeurosurgery
Volume51
Issue number5
DOIs
StatePublished - Nov 1 2002
Externally publishedYes

Fingerprint

Athletes
Anterograde Amnesia
Confusion
Unconsciousness
History
Sports
Brain Concussion
Retrograde Amnesia
Sports Medicine
Odds Ratio
Outcome Assessment (Health Care)
Wounds and Injuries

Keywords

  • Anterograde amnesia
  • Cerebral concussion
  • Head injury
  • High school
  • ImPACT
  • Retrograde amnesia
  • Sports

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

Cite this

Collins, M. W., Lovell, M. R., Iverson, G. L., Cantu, R. C., Maroon, J. C., Field, M., ... Bullock, R. (2002). Cumulative effects of concussion in high school athletes. Neurosurgery, 51(5), 1175-1181. https://doi.org/10.1097/00006123-200211000-00011

Cumulative effects of concussion in high school athletes. / Collins, Michael W.; Lovell, Mark R.; Iverson, Grant L.; Cantu, Robert C.; Maroon, Joseph C.; Field, Melvin; Bailes, Julian E.; Valadka, Alex B.; Bullock, Ross.

In: Neurosurgery, Vol. 51, No. 5, 01.11.2002, p. 1175-1181.

Research output: Contribution to journalArticle

Collins, MW, Lovell, MR, Iverson, GL, Cantu, RC, Maroon, JC, Field, M, Bailes, JE, Valadka, AB & Bullock, R 2002, 'Cumulative effects of concussion in high school athletes', Neurosurgery, vol. 51, no. 5, pp. 1175-1181. https://doi.org/10.1097/00006123-200211000-00011
Collins MW, Lovell MR, Iverson GL, Cantu RC, Maroon JC, Field M et al. Cumulative effects of concussion in high school athletes. Neurosurgery. 2002 Nov 1;51(5):1175-1181. https://doi.org/10.1097/00006123-200211000-00011
Collins, Michael W. ; Lovell, Mark R. ; Iverson, Grant L. ; Cantu, Robert C. ; Maroon, Joseph C. ; Field, Melvin ; Bailes, Julian E. ; Valadka, Alex B. ; Bullock, Ross. / Cumulative effects of concussion in high school athletes. In: Neurosurgery. 2002 ; Vol. 51, No. 5. pp. 1175-1181.
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