Guidelines for Managing Pediatric Concussion When Initial CT Is Negative

Emergency Department Management

• Close neurological monitoring in the emergency department for 4–6 hours with serial examinations, comprehensive discharge education, and strict return precautions is recommended; no additional imaging or medication is required given a negative CT and a normal neurological exam. [1][2]
• Perform neurological examinations every 30–60 minutes while in the ED, focusing on Glasgow Coma Scale motor response, pupillary size/reactivity, and level of alertness. [3][1]
• A decrease of ≥2 points on the GCS or the emergence of any new focal neurological deficit mandates repeat CT imaging. 3

Observation Period and Imaging

• Maintain a minimum ED observation period of 4–6 hours from the time of injury before discharge; extended observation safely reduces unnecessary imaging and allows detection of delayed deterioration. 4
• Do not obtain repeat CT imaging unless there is clinical deterioration; routine follow‑up imaging in mild traumatic brain injury with an initially negative CT is not indicated. 4

Risk Assessment

• Presence of vomiting, photophobia, and altered mental status (e.g., grogginess, difficulty waking) places the child at moderate risk despite a negative CT, warranting careful observation. [1][2]

Discharge Instructions & Home Management

• Mandate complete physical and cognitive rest for 24–48 hours (no school, screen time, reading, or vigorous activity). 2
• After the initial rest period, begin a gradual return to light activities as tolerated, stopping immediately if symptoms recur. 1
• Caregivers should be instructed to seek immediate medical attention for any new focal neurological symptoms. [1][2]
• Schedule a follow‑up visit with the primary‑care physician within 24–48 hours for reassessment and ongoing concussion management. 1

Return‑to‑School Protocol

• Once asymptomatic at rest, initiate 30–60 minutes of light cognitive activity (quiet reading, simple homework). [1][2]
• If symptoms reappear with activity, cease the activity and resume rest until symptoms resolve. [1][2]
• Progress to half‑day school attendance with accommodations (extra time for assignments, reduced homework load, frequent breaks) before attempting full‑day attendance. [1][2]
• Do not permit participation in physical education, recess, or sports while any concussion‑related symptoms persist. 1
• Provide written documentation to the school requesting temporary academic accommodations, including reduced workload, extended test time, frequent breaks, and exemption from physical activities. [1][2]

Environmental Modifications at Home

• Reduce light exposure (dim lights, limit screen use, consider sunglasses) to address photophobia. [1][2]
• Minimize ambient noise in the home environment. [1][2]
• Ensure adequate, consistent sleep hygiene with a regular sleep‑wake schedule. [1][2]

Activity Restrictions

• Do not allow return to contact sports or other high‑risk activities until the child is completely asymptomatic and cleared by a physician experienced in concussion management. [1][2]

Recovery Expectations

• The majority of children recover within 7–10 days; however, 10–20 % may experience symptoms persisting beyond one month. 1
• Symptom resolution typically occurs gradually rather than abruptly. [1][2]

Management of Suspected Concussion in Young Children

Immediate Assessment and Risk Stratification

• The American Academy of Pediatrics recommends using PECARN criteria to determine imaging needs and severity in children with suspected concussion, with high-risk features including GCS score of 14, any signs of altered mental status, or any palpable skull fracture (4.4% risk of clinically important injury requiring immediate CT imaging) 5
• Red flags requiring emergency medical attention include loss of consciousness, severe or worsening headache, repeated vomiting, altered mental status, seizures, visual changes, or scalp deformities 6

Imaging Decisions

• The American College of Radiology recommends obtaining immediate non-contrast CT for any high-risk patient with GCS ≤14, altered mental status, or palpable skull fracture 5
• CT is first-line imaging due to rapid acquisition, excellent sensitivity for acute hemorrhage and fractures, and no sedation requirement 5

Acute Management Protocol

• The American Academy of Pediatrics recommends complete physical and cognitive rest for the first 24-48 hours after concussion, followed by gradual resumption of light activities as tolerated without symptom provocation 7, 8
• Avoid strict prolonged rest beyond 48 hours as evidence shows this may be detrimental to recovery 9

Medication Considerations

• The American Academy of Pediatrics recommends avoiding NSAIDs and aspirin in the immediate post-injury period due to theoretical risk of potentiating intracranial bleeding, though no studies have documented actual harm from sport-related concussions 10
• Acetaminophen may be used cautiously for headache management if needed 10

Monitoring for Concerning Symptoms

• Seek immediate medical attention if the child develops persistent or worsening vomiting, increasing drowsiness or difficulty waking, seizure activity, worsening headache, excessive irritability or behavior changes, unsteady walking or coordination problems, or unequal pupil size 5

Recovery Expectations and Follow-up

• Most children recover within 7-10 days, though some may take weeks to months 11, 6
• Pediatric patients generally have longer recovery than older athletes 11
• Approximately 80-90% recover within one month 6

Special Considerations for Toddlers

• Toddlers cannot reliably report symptoms, requiring heavy reliance on parental observation of behavior changes 7, 8
• Maintain higher index of suspicion in very young children due to ongoing brain development 10, 7

Return to Activities

• For a 2½-year-old, gradual return to normal play activities should start with quiet play activities once asymptomatic at rest, followed by light physical activity and normal play activities only when completely asymptomatic with exertion 7, 8
• Never allow return to high-risk activities (playground climbing, running, rough play) while any symptoms persist 7, 8