Concussion Assessment in Young Adult Athletes
Remove the athlete immediately from play and do not allow return the same day—this is non-negotiable even if symptoms resolve, as cognitive and metabolic recovery lags behind symptom resolution. 1, 2
Immediate Sideline Assessment
Perform a structured evaluation using the following components:
Symptom Evaluation
- Use a standardized symptom checklist (SCAT6 or similar) where the athlete self-reports symptoms on a 0-6 severity scale 2
- Headache is the most common symptom (present in majority of cases), followed by dizziness and confusion 1
- Document all symptoms across four domains: physical (headache, dizziness, nausea, balance problems), cognitive (confusion, difficulty concentrating, feeling "foggy"), emotional (irritability, sadness), and sleep disturbances 1, 2
- Ask about feeling "dinged" or having "bell rung"—athletes may be more forthcoming with these colloquial terms 1
Cognitive Assessment
- Avoid standard orientation questions (time, place, person) as they are unreliable in sports settings 1
- Instead, assess memory function using tools like the Standardized Assessment of Concussion (SAC) or Maddock's questions 1
- Test immediate memory (word list recall), concentration (digits backward), and delayed recall 2
- Evaluate for both retrograde amnesia (events before injury) and anterograde amnesia (events after injury)—these are important indicators of more serious injury 1
Neurological Examination
- First rule out cervical spine injury—assume spine injury in any unconscious athlete until proven otherwise 1
- Assess gait and balance using Modified Balance Error Scoring System (mBESS) or Romberg test 1, 2
- Note that balance testing is specific but not sensitive for concussion 3
- Check for physical signs: loss of consciousness (occurs in <10% but indicates potentially more severe injury), poor coordination, slurred speech, vacant stare, inappropriate emotions, vomiting 1
When to Obtain Neuroimaging
CT imaging is indicated when suspicion exists for structural brain injury, not for routine concussion diagnosis 1
Obtain immediate CT if:
- Glasgow Coma Scale score <15 at 2 hours post-injury 1
- Suspected open or depressed skull fracture 1
- Prolonged loss of consciousness (>30 seconds) 2
- Focal neurological deficits 1
- Seizure activity 1
- Persistent worsening headache 1
- Repeated vomiting 1
- Deteriorating mental status 1
Conventional CT/MRI is typically normal in uncomplicated concussion—neuroimaging contributes little to concussion evaluation itself but is critical for excluding structural lesions 1
Neuropsychological Testing
Neuropsychological testing is a cornerstone of concussion evaluation but should never be used in isolation 1, 3
- Baseline testing maximizes clinical utility but is not mandatory 1
- Testing should assess information processing, planning, memory, and mental set-switching 1
- Cognitive recovery may precede OR follow symptom resolution—this is why both symptom assessment and cognitive testing are essential 1
- Computerized tests (ImPACT, CogSport, ANAM) or comprehensive paper-and-pencil batteries administered by neuropsychologists are both valid options 1
- Most concussions can be managed appropriately without neuropsychological testing 3
Acute Management Protocol
Immediate Actions:
- Do not leave the athlete alone; monitor regularly for deterioration 1
- Provide written instructions to athlete and family about warning signs requiring emergency evaluation 1
- Mandate complete physical AND cognitive rest for first 24-48 hours 4
Medication Considerations:
- Avoid NSAIDs and aspirin in the immediate post-injury period due to theoretical bleeding risk 4
- Acetaminophen may be used cautiously for headache management 4
Red Flags Requiring Emergency Evaluation:
- Worsening or severe headache 1
- Repeated vomiting 1
- Seizures 1
- Increasing confusion or deteriorating consciousness 1
- Focal neurological signs 1
- Unequal pupils 4
Return-to-Play Protocol
The athlete must be completely asymptomatic at rest AND with exertion before beginning graduated return-to-play 1, 2
Stepwise Progression (minimum 24 hours per step):
- Complete rest until asymptomatic at rest 1
- Light aerobic exercise (walking, stationary bike) at <70% max heart rate 1
- Sport-specific exercise without contact 1
- Non-contact training drills with progressive resistance 1
- Full-contact practice after medical clearance 1
- Return to competition 1
If ANY symptoms recur at any step, stop immediately and return to the previous asymptomatic level 1, 2
Critical Pitfalls to Avoid
- Never use rigid grading systems—these have been abandoned in favor of individualized assessment based on symptom duration and recovery trajectory 1, 3
- Never allow same-day return to play even if the athlete becomes asymptomatic 2, 3
- Consider pre-existing conditions (ADHD, depression, learning disabilities, migraines) that may complicate diagnosis and prolong recovery 1, 3
- Young adult athletes may require longer recovery than professional athletes 2, 4
- Most concussions resolve in 7-10 days, but some take weeks to months—do not rush recovery 2, 4