Is the simple versus complex classification of concussion a valid and useful differentiation?

British Journal of Sports Medicine

Volumn 43, Issue SUPPL. 1, 2009, Pages

  Makdissi, Michael ^a  

^a UNIVERSITY OF MELBOURNE   (Australia)

Author keywords

[No Author keywords available]

Indexed keywords

ADVERSE OUTCOME; ATHLETE; CLASSIFICATION; CLINICAL ASSESSMENT; CLINICAL FEATURE; COGNITIVE DEFECT; CONCUSSION; CONFERENCE PAPER; CONSTRUCT VALIDITY; CONVALESCENCE; DATA BASE; GENOTYPE; HEAD INJURY; HUMAN; INFORMATION RETRIEVAL; INJURY SEVERITY; MEDLINE; OUTCOME ASSESSMENT; PATHOPHYSIOLOGY; PROGNOSIS; PROSPECTIVE STUDY; QUALITATIVE ANALYSIS; SAMPLE SIZE; SPORT INJURY; SYMPTOM; SYSTEMATIC REVIEW; VALIDITY;

ATHLETIC INJURIES; BRAIN CONCUSSION; COGNITION DISORDERS; HUMANS; PROGNOSIS; RECOVERY OF FUNCTION; SEIZURES; TRAUMA SEVERITY INDICES;

EID: 70349247833     PISSN: 03063674     EISSN: 14730480     Source Type: Journal    
DOI: 10.1136/bjsm.2009.058206     Document Type: Conference Paper

References (50)

1. Johnston KM, McCrory P, Mohtadi NG, et al. Evidence-based review of sportrelated concussion: clinical science. Clin J Sport Med 2001;11:150-159 (Pubitemid 32667127)
2. Aubry M, Cantu R, Dvorak J, et al. Summary and agreement statement of the 1st International Symposium on Concussion in Sport, Vienna 2001. Clin J Sport Med 2002;12:6-11.
3. McCrory P, Johnston K, Meeuwisse W, et al. Summary and agreement statement of the 2nd International Conference on Concussion in Sport, Prague 2004. Br J Sports Med 2005;39:196-204. (Pubitemid 40478202)
4. Giza CC, Hovda DA. The neurometabolic cascade of concussion. J Athl Train 2001;36:228-235
5. Bland JM, Altman DG. Statistics notes: validating scales and indexes. BMJ 2002;324:606-607
6. Leclerc S, Lassonde M, Delaney JS, et al. Recommendations for grading of concussion in athletes. Sports Med 2001;31:629-636
7. Echemendia RJ, Putukian M, Mackin RS, et al. Neuropsychological test performance prior to and following sports-related mild traumatic brain injury. Clin J Sport Med 2001;11:23-31. (Pubitemid 32062197)
8. Erlanger D, Kaushik T, Cantu R, et al. Symptom-based assessment of the severity of a concussion. J Neurosurg 2003;98:477-484
9. Guskiewicz KM, McCrea M, Marshall SW, et al. Cumulative effects associated with recurrent concussion in collegiate football players: the NCAA Concussion Study. JAMA 2003;290:2549-2555 (Pubitemid 37443284)
10. Iverson GL, Brooks BL, Collins MW, et al. Tracking neuropsychological recovery following concussion in sport. Brain Inj 2006;20:245-252
11. Macciocchi SN, Barth JT, Alves W, et al. Neuropsychological functioning and recovery after mild head injury in collegiate athletes. Neurosurgery 1996;39:510-514 (Pubitemid 26292023)
12. McCrea M, Guskiewicz KM, Marshall SW, et al. Acute effects and recovery time following concussion in collegiate football players: the NCAA Concussion Study. JAMA 2003;290:2556-2563 (Pubitemid 37443285)
13. Pellman EJ, Powell JW, Viano DC, et al. Concussion in professional football: epidemiological features of game injuries and review of the literature-part 3. Neurosurgery 2004;54:81-94; discussion 94-96
14. Guskiewicz KM, Ross SE, Marshall SW. Postural stability and neuropsychological deficits after concussion in collegiate athletes. J Athl Train 2001;36:263-273
15. Maddocks D, Saling M. Neuropsychological deficits following concussion. Brain Inj 1996;10:99-103.
16. Collie A, Makdissi M, Maruff P, et al. Cognition in the days following concussion: comparison of symptomatic versus asymptomatic athletes. J Neurol Neurosurg Psychiatry 2006;77:241-245 (Pubitemid 43220852)
17. Moriarity J, Collie A, Olson D, et al. A prospective controlled study of cognitive function during an amateur boxing tournament. Neurology 2004;62:1497-1502 (Pubitemid 38608185)
18. Sim A, Terryberry-Spohr L, Wilson KR. Prolonged recovery of memory functioning after mild traumatic brain injury in adolescent athletes. J Neurosurg 2008;108:511-516 (Pubitemid 351357983)
19. Lovell MR, Collins MW, Iverson GL, et al. Recovery from mild concussion in high school athletes. J Neurosurg 2003;98:296-301. (Pubitemid 36151023)
20. Barth JT, Alves WM, Ryan TV, et al. Mild head injury in sports: neuropsychological sequelae and recovery of function. In: Levin HS, Eisenberg HM, Benton AL, eds. Mild Head Injury. New York: Oxford University Press, 1989:257-275
21. Lovell MR, Collins MW. Neuropsychological assessment of the college football player. J Head Trauma Rehabil 1998;13:9-26. (Pubitemid 28176856)
22. Makdissi M, Collie A, Maruff P, et al. Computerised cognitive assessment of concussed Australian Rules footballers. Br J Sports Med 2001;35:354-360 (Pubitemid 32929826)
23. Bleiberg J, Cernich AN, Cameron K, et al. Duration of cognitive impairment after sports concussion. Neurosurgery 2004;54:1073-78; discussion 1078-1080 (Pubitemid 38585920)
24. Collins MW, Grindel SH, Lovell MR, et al. Relationship between concussion and neuropsychological performance in college football players. JAMA 1999;282:964-970
25. Peterson CL, Ferrara MS, Mrazik M, et al. Evaluation of neuropsychological domain scores and postural stability following cerebral concussion in sports. Clin J Sport Med 2003;13:230-237 (Pubitemid 36917981)
26. Collie A, Maruff P, McStephen M, et al. Psychometric issues associated with computerised neuropsychological assessment of concussed athletes. Br J Sports Med 2003;37:556-559 (Pubitemid 38067726)
27. Hinton-Bayre AD, Geffen GM, Geffen LB, et al. Concussion in contact sports: reliable change indices of impairment and recovery. J Clin Exp Neuropsychol 1999;21:70-86.
28. Broglio SP, Puetz TW. The effect of sport concussion on neurocognitive function, self-report symptoms and postural control: a meta-analysis. Sports Med 2008;38:53-67.
29. McCrory PR, Bladin PF, Berkovic SF. Retrospective study of concussive convulsions in elite Australian rules and rugby league footballers: phenomenology, aetiology, and outcome. BMJ 1997;314:171-174
30. McCrory PR, Berkovic SF. Video analysis of acute motor and convulsive manifestations in sport-related concussion. Neurology 2000;54:1488-1491
31. Cantu RC. Return to play guidelines after a head injury. Clin Sports Med 1998;17:45-60. (Pubitemid 28063626)
32. American Acadamy of Neurology. Management of Concussion in Sports. In: 1997 AAN National Press Conference on Concussion and Sports, 1997.Minnesota, USA: AAN, 1997.
33. Teasdale G, Jennett B. Assessment of coma and impaired consiousness: a practical scale. Lancet 1974;2:81-84
34. Lovell MR, Iverson GL, Collins MW, et al. Does loss of consciousness predict neuropsychological decrements after concussion? Clin J Sport Med 1999;9:193-198
35. Pellman EJ, Viano DC, Casson IR, et al. Concussion in professional football: injuries involving 7 or more days out-Part 5. Neurosurgery 2004;55:1100-1119
36. Collins MW, Iverson GL, Lovell MR, et al. On-field predictors of neuropsychological and symptom deficit following sports-related concussion. Clin J Sport Med 2003;13:222-229
37. McCrory PR, Ariens T, Berkovic SF. The nature and duration of acute concussive symptoms in Australian football. Clin J Sport Med 2000;10:235-238
38. Iverson G. Predicting slow recovery from sport-related concussion: the new simplecomplex distinction. Clin J Sport Med 2007;17:31-37 (Pubitemid 46279921)
39. Collins MW, Field M, Lovell MR, et al. Relationship between postconcussion headache and neuropsychological test performance in high school athletes. Am J Sports Med 2003;31:168-173 (Pubitemid 36343319)
40. Iverson GL, Gaetz M, Lovell MR, et al. Relation between subjective fogginess and neuropsychological testing following concussion. J Int Neuropsychol Soc 2004;10:904-906 (Pubitemid 39480823)
41. Gronwall D, Wrightson P. Cumulative effect of concussion. Lancet 1975;2:995-997
42. Omalu BI, DeKosky ST, Minster RL, et al. Chronic traumatic encephalopathy in a National Football League player. Neurosurgery 2005;57:128-134
43. Macciocchi SN, Barth JT, Littlefield L, et al. Multiple concussions and neuropsychological functioning in collegiate football players. J Athl Train 2001;36:303-306 (Pubitemid 33685241)
44. McCrory P, Johnston KM, Mohtadi NG, et al. Evidence-based review of sportrelated concussion: basic science. Clin J Sport Med 2001;11:160-165 (Pubitemid 32667128)
45. Tysvaer A, Lochen E. Soccer injuries to the brain: a neuropsychological study of former soccer players. Am J Sports Med 1991;19:56-60.
46. Matser EJ, Kessels AG, Lezak MD, et al. Neuropsychological impairment in amateur soccer players. JAMA 1999;282:971-973
47. Porter MD. A 9-year controlled prospective neuropsychologic assessment of amateur boxing. Clin J Sport Med 2003;13:339-352
48. Slobounov S, Slobounov E, Sebastianelli W, et al. Differential rate of recovery in athletes after first and second concussion episodes. Neurosurgery 2007;61:338-44; discussion 344. (Pubitemid 47357329)
49. Jordan BD, Relkin NR, Ravdin LD, et al. Apolipoprotein E epsilon4 associated with chronic traumatic brain injury in boxing. JAMA 1997;278:136-140 (Pubitemid 27287671)
50. Kutner K, Erlanger D, Tsai J, et al. Lower cognitive performance in older football players possessing Apolipoprotein E, e. Neurosurgery 2000;47:651-658. (Pubitemid 32044712)