What is the recommended evaluation and management for suspected concussion syndrome?

Concussion Syndrome: Evaluation and Management

Immediate Evaluation and Removal from Activity

Any individual with suspected concussion must be immediately removed from play or activity and should not return to activity on the same day of injury, even if symptoms resolve. 1

Initial Assessment Components

When evaluating a suspected concussion, assess the following domains:

• Symptom evaluation: Use graded symptom checklists to assess headache (most common), nausea, dizziness, confusion, emotional lability, impaired balance, concentration difficulties, and fatigue 1, 2
• Cognitive assessment: Evaluate orientation, immediate and delayed memory, concentration, and mental processing speed using tools like the Standardized Assessment of Concussion (SAC) 1, 2, 3
• Balance testing: Perform postural stability assessment, though recognize this is specific but not sensitive for concussion 1, 2
• Neurological examination: Complete physical examination to identify focal deficits 1

Red Flags Requiring Emergency Activation

Activate EMS immediately for any of the following severe signs:

• Loss of consciousness
• Worsening or severe headache
• Repeated vomiting
• Altered mental status or confusion
• Seizure activity
• Visual changes
• Skull deformities or swelling
• Focal neurological deficits 1

These signs suggest potentially life-threatening injuries such as epidural hematoma, subdural hematoma, or brain edema requiring hospital treatment 1.

Acute Management: Rest Protocol

Initial Rest Period (First 24-48 Hours)

Prescribe 24-48 hours of initial rest following concussion, but avoid prolonged strict rest as evidence shows it may be detrimental. 1

• Physical rest: Complete avoidance of physical exertion until asymptomatic at rest 1
• Cognitive rest: Limit activities requiring concentration including:
  • School attendance and homework
  • Reading and studying
  • Video games and computer use
  • Television viewing
  • Texting and social media
  • Standardized testing (should be postponed) 1

School Accommodations

Coordinate with school personnel to implement academic modifications:

• Reduced workload and extended time for assignments 1
• Frequent breaks during the school day 1
• Delayed return to full academic schedule 1
• Avoidance of standardized testing during recovery 1

Important caveat: Students often appear physically well, leading teachers to underestimate cognitive difficulties—proactive communication with school staff is essential 1.

Progressive Return to Activity

Graded Exercise Protocol

Once asymptomatic at rest (typically 7-10 days in most cases), begin a stepwise return-to-activity protocol with each step taking a minimum of 24 hours. 1

The graded progression includes:

1. Light aerobic exercise (walking, stationary cycling)
2. Sport-specific exercise without head impact risk
3. Non-contact training drills
4. Full-contact practice
5. Return to competition 1

Critical rule: If any symptoms recur at any step, the patient must rest and return to the previous asymptomatic level before advancing again 1.

Special Considerations for Pediatric and Adolescent Athletes

Pediatric and adolescent athletes require a more conservative approach with longer recovery periods (often 7-10 days or longer) compared to adults. 1

• Younger athletes demonstrate prolonged cognitive recovery even after symptom resolution 1
• Never allow same-day return to play in this population 1
• Medical clearance by an experienced healthcare provider is mandatory before return to play 1

Exercise as Treatment for Adolescents

For adolescents with acute concussion, exercise is recommended as an appropriate therapy based on the most recent evidence. 1

• Subsymptom threshold exercise (light cardiovascular activity that does not induce symptoms) may benefit recovery 1
• Avoid high-intensity physical activity, which has shown detrimental effects 1

Management of Prolonged Symptoms (>10 Days)

Symptoms persisting beyond 10 days require multidisciplinary management. 1

Risk Factors for Prolonged Recovery

• Female sex
• Previous psychiatric history
• GCS score <15
• Assault as mechanism of injury
• Loss of consciousness
• Pre-injury anxiety or depression
• Multiple previous concussions 1, 2, 3

Multidisciplinary Approach

Refer patients with persistent symptoms to specialists including:

• Sports medicine physicians
• Neuropsychologists
• Physical therapists (for vestibular or cervical dysfunction)
• Mental health professionals 1, 4

Neuropsychological Testing

Neuropsychological testing is a useful adjunct but should not be used in isolation for diagnosis or return-to-play decisions. 1, 2

• Baseline testing maximizes clinical utility 1, 2
• Most concussions can be managed appropriately without neuropsychological testing 2
• Computerized testing requires interpretation by trained professionals familiar with test limitations 2
• Comprehensive neuropsychological evaluation is helpful for athletes with persistent symptoms or complicated courses 2

Neuroimaging

Routine neuroimaging (CT or MRI) is not indicated for uncomplicated concussion but should be obtained when structural lesions are suspected. 1

Indications for imaging include:

• Prolonged loss of consciousness (>30 seconds)
• Focal neurological deficits
• Persistent or worsening symptoms
• Seizure activity
• Signs of skull fracture 1

Medication Management

The safety and efficacy of medications for treating concussion symptoms has not been established. 1

• Do not allow return to play while taking medications for concussion symptoms 1
• Symptomatic treatment may be considered for specific symptoms (headache, sleep disturbance) but lacks strong evidence 1

Key Pitfalls to Avoid

• Never allow same-day return to play—this is the most critical safety principle 1
• Avoid prolonged strict rest beyond 24-48 hours, as recent evidence shows it may be detrimental 1
• Do not rely solely on symptom resolution—cognitive recovery may lag behind symptom improvement 1, 2
• Do not use neuroimaging results alone to clear athletes for return to play, as imaging is typically normal in concussion 1
• Avoid premature return to cognitive activities including school and standardized testing 1

Follow-Up and Monitoring

All patients with diagnosed concussion require medical clearance from a licensed healthcare provider trained in concussion management before returning to play. 1, 2

• Monitor for symptom deterioration in the first 24-48 hours 1
• Provide concussion-specific discharge instructions 1
• Ensure someone can assist with following discharge instructions and provide a safe environment during recovery 1
• Consider referral to multidisciplinary concussion programs for high-risk patients 1, 4