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Systematic review of prognosis and return to play after sport concussion: results of the International Collaboration on Mild Traumatic Brain Injury Prognosis.
Arch Phys Med Rehabil. 2014 Mar; 95(3 Suppl):S210-29.AP

Abstract

OBJECTIVE

To synthesize the best available evidence on prognosis after sport concussion.

DATA SOURCES

MEDLINE and other databases were searched (2001-2012) with terms including "craniocerebral trauma" and "sports." Reference lists of eligible articles were also searched.

STUDY SELECTION

Randomized controlled trials and cohort and case-control studies were selected according to predefined criteria. Studies had to have a minimum of 30 concussion cases.

DATA EXTRACTION

Eligible studies were critically appraised using a modification of the Scottish Intercollegiate Guidelines Network (SIGN) criteria. Two reviewers independently reviewed and extracted data from accepted studies into evidence tables.

DATA SYNTHESIS

Evidence was synthesized qualitatively according to modified SIGN criteria, and studies were categorized as exploratory or confirmatory based on the strength of their design and evidence. After 77,914 records were screened, 52 articles were eligible for this review, and 24 articles (representing 19 studies) with a low risk of bias were accepted. Our findings are based on exploratory studies of predominantly male football players at the high school, collegiate, and professional levels. Most athletes recover within days to a few weeks, and American and Australian professional football players return to play quickly after mild traumatic brain injury. Delayed recovery appears more likely in high school athletes, in those with a history of previous concussion, and in those with a higher number and duration of postconcussion symptoms.

CONCLUSIONS

The evidence concerning sports concussion course and prognosis is very preliminary, and there is no evidence on the effect of return-to-play guidelines on prognosis. Our findings have implications for further research. Well-designed, confirmatory studies are urgently needed to understand the consequences of sport concussion, including recurrent concussion, across different athletic populations and sports.

Authors+Show Affiliations

Division of Health Care and Outcomes Research, Toronto Western Research Institute, University Health Network, University of Toronto, Toronto, Ontario, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada. Electronic address: ccancell@uhnresearch.ca.Division of Health Care and Outcomes Research, Toronto Western Research Institute, University Health Network, University of Toronto, Toronto, Ontario, Canada; Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.Departments of Occupational Science and Occupational Therapy, Psychology and Graduate Department of Rehabilitation Science, University of Toronto, Toronto, Ontario, Canada; Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, Ontario, Canada.Department of Clinical Sciences, Rehabilitation Medicine, Karolinska Institutet, Danderyd University Hospital, Stockholm, Sweden.Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada; Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada; Faculty of Health Sciences, University of Ontario Institute of Technology, Oshawa, Ontario, Canada; UOIT-CMCC Centre for the Study of Disability Prevention and Rehabilitation, Toronto, Ontario, Canada.Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada; Department of Health Sciences, Lakehead University, Thunder Bay, Ontario, Canada; Institute for Work and Health, Toronto, Ontario, Canada.Department of Community Medicine and Rehabilitation, Rehabilitation Medicine, Umeå University, Umeå, Sweden.School of Public Health and Alberta Centre for Injury Control and Research, University of Alberta, Edmonton, Alberta, Canada.Department of Rehabilitation and Complex Continuing Care, Holland Bloorview Kids Rehabilitation Hospital, Toronto, Ontario, Canada; Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada.Department of Clinical Sciences, Rehabilitation Medicine, Karolinska Institutet, Danderyd University Hospital, Stockholm, Sweden.Department of Clinical Sciences, Rehabilitation Medicine, Karolinska Institutet, Danderyd University Hospital, Stockholm, Sweden.National Center for Injury Prevention and Control, Centers for Disease Control and Prevention, Atlanta, GA.Division of Health Care and Outcomes Research, Toronto Western Research Institute, University Health Network, University of Toronto, Toronto, Ontario, Canada.Division of Health Care and Outcomes Research, Toronto Western Research Institute, University Health Network, University of Toronto, Toronto, Ontario, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada; Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada; Institute of Sports Science and Clinical Biomechanics, Faculty of Health, University of Southern Denmark, Odense, Denmark.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Review
Systematic Review

Language

eng

PubMed ID

24581907

Citation

Cancelliere, Carol, et al. "Systematic Review of Prognosis and Return to Play After Sport Concussion: Results of the International Collaboration On Mild Traumatic Brain Injury Prognosis." Archives of Physical Medicine and Rehabilitation, vol. 95, no. 3 Suppl, 2014, pp. S210-29.
Cancelliere C, Hincapié CA, Keightley M, et al. Systematic review of prognosis and return to play after sport concussion: results of the International Collaboration on Mild Traumatic Brain Injury Prognosis. Arch Phys Med Rehabil. 2014;95(3 Suppl):S210-29.
Cancelliere, C., Hincapié, C. A., Keightley, M., Godbolt, A. K., Côté, P., Kristman, V. L., Stålnacke, B. M., Carroll, L. J., Hung, R., Borg, J., Nygren-de Boussard, C., Coronado, V. G., Donovan, J., & Cassidy, J. D. (2014). Systematic review of prognosis and return to play after sport concussion: results of the International Collaboration on Mild Traumatic Brain Injury Prognosis. Archives of Physical Medicine and Rehabilitation, 95(3 Suppl), S210-29. https://doi.org/10.1016/j.apmr.2013.06.035
Cancelliere C, et al. Systematic Review of Prognosis and Return to Play After Sport Concussion: Results of the International Collaboration On Mild Traumatic Brain Injury Prognosis. Arch Phys Med Rehabil. 2014;95(3 Suppl):S210-29. PubMed PMID: 24581907.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Systematic review of prognosis and return to play after sport concussion: results of the International Collaboration on Mild Traumatic Brain Injury Prognosis. AU - Cancelliere,Carol, AU - Hincapié,Cesar A, AU - Keightley,Michelle, AU - Godbolt,Alison K, AU - Côté,Pierre, AU - Kristman,Vicki L, AU - Stålnacke,Britt-Marie, AU - Carroll,Linda J, AU - Hung,Ryan, AU - Borg,Jörgen, AU - Nygren-de Boussard,Catharina, AU - Coronado,Victor G, AU - Donovan,James, AU - Cassidy,J David, PY - 2013/01/26/received PY - 2013/04/28/revised PY - 2013/06/27/accepted PY - 2014/3/4/entrez PY - 2014/3/4/pubmed PY - 2014/4/30/medline KW - Athletic injuries KW - Brain concussion KW - Prognosis KW - Rehabilitation KW - Sports SP - S210 EP - 29 JF - Archives of physical medicine and rehabilitation JO - Arch Phys Med Rehabil VL - 95 IS - 3 Suppl N2 - OBJECTIVE: To synthesize the best available evidence on prognosis after sport concussion. DATA SOURCES: MEDLINE and other databases were searched (2001-2012) with terms including "craniocerebral trauma" and "sports." Reference lists of eligible articles were also searched. STUDY SELECTION: Randomized controlled trials and cohort and case-control studies were selected according to predefined criteria. Studies had to have a minimum of 30 concussion cases. DATA EXTRACTION: Eligible studies were critically appraised using a modification of the Scottish Intercollegiate Guidelines Network (SIGN) criteria. Two reviewers independently reviewed and extracted data from accepted studies into evidence tables. DATA SYNTHESIS: Evidence was synthesized qualitatively according to modified SIGN criteria, and studies were categorized as exploratory or confirmatory based on the strength of their design and evidence. After 77,914 records were screened, 52 articles were eligible for this review, and 24 articles (representing 19 studies) with a low risk of bias were accepted. Our findings are based on exploratory studies of predominantly male football players at the high school, collegiate, and professional levels. Most athletes recover within days to a few weeks, and American and Australian professional football players return to play quickly after mild traumatic brain injury. Delayed recovery appears more likely in high school athletes, in those with a history of previous concussion, and in those with a higher number and duration of postconcussion symptoms. CONCLUSIONS: The evidence concerning sports concussion course and prognosis is very preliminary, and there is no evidence on the effect of return-to-play guidelines on prognosis. Our findings have implications for further research. Well-designed, confirmatory studies are urgently needed to understand the consequences of sport concussion, including recurrent concussion, across different athletic populations and sports. SN - 1532-821X UR - https://www.unboundmedicine.com/medline/citation/24581907/Systematic_review_of_prognosis_and_return_to_play_after_sport_concussion:_results_of_the_International_Collaboration_on_Mild_Traumatic_Brain_Injury_Prognosis_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0003-9993(13)01065-4 DB - PRIME DP - Unbound Medicine ER -