Concussions Flashcards

1
Q

Concussion: Glasgow score

A
  • GCS score of 13-15
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2
Q

Concussion Def

A
  • Mild traumatic brain injury (TBI)
  • May or may not include LOC (sports mostly lack LOC)**
  • Symptoms
    • rapid onset of brief impairment (neurological fxn)
    • resolves spontaneously
    • Normal brain structure
    • Vacant stare
    • Delayed/slurred speech
    • Disorientation
    • Memory deficits
  • Elderly = Falls**
  • Young = Crashes**
  • Contact sports
    • high school higher rates than college
  • Soldiers
    • explosions, shrapnel, bullet wounds, etc
  • Risk Factors
    • <5 yo
    • >60 yo
  • Secondary Injury
    • Wallerian degeneration
    • release of acetylcholine, glutamate, aspartate (excitatory neurotransmitters)
    • free radicals
  • Axonal Rupture
    • shear and tensile forces
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3
Q

Cerebral Edema

A
  • Overfills cranial vault
  • Flattening of gyri
  • Narrowing of sulci
  • Compression of ventricular cavities
  • Herniation
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4
Q

Hallmark of concussions**

A
  • Confusion
  • Amnesia
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5
Q

Standardized Assessment of Concussion (SAC)

A
  • Used for athletes
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6
Q

How long after a concussion should you monitor? What should you do during?

A
  • At least 24 hours
    • Bc of intracranial complication risk
  • Should awake from sleep every 2 hours**
  • No physical or mental strain for 24 hours
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7
Q

When should you hospitalize pts?

A
  • Glasgow score of <15
  • Abn CT
    • bleeding
    • cerebral edema
  • Seizures
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8
Q

When should caregiver seek immediate medical help?

A
  • Not able to awaken pt
  • severe/worsening headaches
  • Restlessness/unsteady/seizures
  • Vision difficulties
  • Vomit, Fever, Stiff neck
  • Incontinence
  • Weakness/numbness
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9
Q

Second Impact Syndrome

A
  • Diffuse cerebral swelling, rare but fatal
    • disordered cerebral autoregulation
    • cerebrovascular congestion
    • malignant cerebral edema
    • inc. ICP
  • After a 2nd concussion, while pt still symptomatic from earlier concussion
  • BOXERS**
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10
Q

Postconcussion Syndrome

A
  • Head and neck structure trauma
  • Symptoms
    • HA
    • Dizzy
    • Neuropsychiatric sx
    • Cog impairment
  • Develop first days after TBI
  • Resolves w/in weeks to months
  • RISK for developing ALS and Parkinson
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11
Q

Motor Neuron Disease

A
  • Chronic traumatic encephalopathy
  • (confirmed pathologically)
  • Risk Factor
    • Football
    • Soccer
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12
Q

Post-Traumatic Headaches

A
  • w/in 7 days after TBI
  • Can be latent up to 3 months
  • May be indistinguishable from nontraumatic migraines or tension HA
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13
Q

Cranial Nerve Injuries

A
  • Can cause:
    • anosmia/hyponosmia
    • diplopia
    • facial pain
    • occipital neuralgia
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14
Q

Cumulative Neuropsychological Impairement

A
  • A type of concussion sequelae
  • Manifestations
    • behavior/personality changes
    • depression
    • suicide
    • parkinsonism
    • speech/gait abnormalities
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15
Q

Post-Traumatic Epilepsy

A
  • TBI pt are 2x at risk of epilepsy w/in next 5 years
  • Seizures w/in 1st week isn’t epilepsy (acute symptomatic events)
  • Do not tx prophylactically w/ anti-convulsants
    • they don’t work to prevent seizures after TBI
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16
Q

Post-Traumatic Vertigo

A
  • Direct injury to Cochlear and/or Vestibular structures
  • Labyrinthine concussion may occur from blunt injury
  • Contributes to disability after TBI
17
Q

American Academy of Neurology: Concussion grading and management

Grade 1

A
  1. Transient confusion
  2. No loss of consciousness
  3. Concussion symptoms for less than 15 mins

Management

  • Athlete may return to play if asymptomatic at 15 mins
18
Q

American Academy of Neurology: Concussion grading and management

Grade 2

A
  1. Transient confusion
  2. No LOC
  3. Concussion Sx for >15 mins

Management

  • Athlete can return to play if asymptomatic for one week
19
Q

American Academy of Neurology: Concussion grading and management

Grade 3

A
  1. LOC of any duration

Management

  • Transport to the hospital and ovserve overnight
  • May return to play when asx for one week (if LOC was brief ie. seconds)
  • May return to play when asx for two weeks (if LOC was prolonged)
20
Q

Return to Play Protocol: Rehabilitation Stage 1

A
  • No activity
  • Complete physical and cognitive rest
  • Objective: recovery
21
Q

Return to Play Protocol: Rehabilitation Stage 2

A
  • Light aerobic exercise
  • Walking, swimming, or stationary cycling, keeping intensity <70% MPHR; no resistance training
  • Objective: inc. HR
22
Q

Return to Play Protocol: Rehabilitation Stage 3

A
  • Sport-specific exercise
  • Skating drills in ice hockey, running drills in soccer, no head impact activities
  • Objective: add movement
23
Q

Return to Play Protocol: Rehabilitation Stage 4

A
  • Non-contact training drills
  • Progression to more complex training drills,
    • ie. passing drills in football and ice hockey
    • may start progressive resistance training
  • Objective:
    • exercise
    • coordination
    • cognitive load
24
Q

Return to Play Protocol: Rehabilitation Stage 5

A
  • Full contact practice
  • Following medical clearance, participate in normal training activities
  • Objective
    • restore confidence
    • assess functional skills by coaching staff
25
Q

Return to Play Protocol: Rehabilitation Stage 6

A
  • Return to play
  • Normal game play