Pediatric Concussion update OCTOBER 14, 2016 NANAIMO BRAIN INJURY - - PowerPoint PPT Presentation

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Pediatric Concussion update OCTOBER 14, 2016 NANAIMO BRAIN INJURY - - PowerPoint PPT Presentation

Pediatric Concussion update OCTOBER 14, 2016 NANAIMO BRAIN INJURY SOCIETY DR. JACQUELINE PURTZKI CLIN. ASSIST. PROFESSOR, UBC, DIV. OF PHYSICAL MEDICINE & REHABILITATION GF STRONG REHAB, CENTRE ADOLESCENT COMPLEX CONCUSSION CLINIC BCCH,


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Pediatric Concussion update

OCTOBER 14, 2016 NANAIMO BRAIN INJURY SOCIETY

  • DR. JACQUELINE PURTZKI
  • CLIN. ASSIST. PROFESSOR, UBC, DIV. OF PHYSICAL MEDICINE & REHABILITATION

GF STRONG REHAB, CENTRE ADOLESCENT COMPLEX CONCUSSION CLINIC BCCH, SHHCC DIV. OF DEVELOPMENTAL PEDIATRICS

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Objectives

 To provide an update of our current understanding of pediatric and

adolescent concussions

 To understand the background of current pediatric ‘return to sport’

guidelines

 To gain knowledge about symptoms management, rehab strategies ,

return to learn and return to sports.

 Take home some useful resources

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Distribution of TBI A. McKinley 2009

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Definition and Pathophysiology

  • f concussion
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Mild Traumatic Brain Injury

(American Congress of Rehabilitation Medicine)

 At least ONE or MORE of the following:  Loss of consciousness (LOC)  Loss of memory for events immediately before or after the accident  Any alteration in mental state  Focal neurological deficit

Exclusion:

 Loss of consciousness >30

mins.

 Glasgow Coma Scale < 13

after 30 mins.

 Post-traumatic amnesia >24

hrs.

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  • May be due to direct blow to the head, face, or neck or by a blow to somewhere else
  • n the body that transmits an impulsive force to the head.
  • You do not need to lose consciousness to sustain a concussion/mTBI.
  • 90% of concussions do not involve LOC!
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Concussion/Brain Injury- Diffuse axonal injury

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Parietal Lobe Frontal Lobe

 Intellect  Sense of Touch  Differentiation of size, shape & colour  Spatial perception  Visual perception  Muscle tone, strength & sensation

Occipital Lobe

Vision

Cerebellum

Balance Coordination

Initiation Planning/Anticipation Follow-through Impulsivity Judgement Reasoning Abstract Thinking Smell Motor Planning Personality Emotionality Speaking Integration of thought and emotion Self-monitoring

Temporal Lobe

 Memory  Hearing  Understanding Language

Brain Stem

 Breathing  Heart Rate  Blood Pressure  Movement & sensation for head, neck, eyes, hearing  Relays messages for

  • ther movements

and sensations

Regions of the Brain

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Modern view: Neural networks

248 E.A. Wilde et al. / Pediatric traumatic brain injury: Neuroimaging and neurorehabilitation outcome “ ”

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Diffuse axonal injury

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Secondary injury mechanisms

from Zasler et al, Brain Injury Medicine

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Rat model

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Brain injury can cause symptoms and dysfunction

Slide adapted from Dr. Giza

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Concussion Statistics for Children and Adolescents

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 ‘Estimated annual incidence 1.6-3.8 million

  • concussions. (Grady, M, 2010)

 In the United States, concussion/mild traumatic brain

injury occurs in 692 of 100,000 children younger than 15 years. (Barlow, K. et al, 2010)

 True incidence unknown: (Zemek, R et al., 2013; Halstead, M, 2010)

US-Concussion Statistics Children and Adolescents

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‘The Burden of Concussion in British

Columbia’ Report’

 Data from Vancouver Coastal Health, Fraser Health, BC

Children’s Hospital examined.

 9,027 children and youth ages 0 -19 years seen at BCCH

with concussion during 2001 – 2009. Significant increase from 2001 to 2009.

 Recommendations:  Need for a provincial concussion program for children

and youth.

 Active and timely rehabilitation essential for concussed

children and youth who remain symptomatic > 6 weeks. BC Injury Research and Prevention Unit and Child Health BC

(Rajabali, Ibrahimova, Turcotte and Babul, 2012) BC Injury Research and Prevention Unit and Child Health BC (October 2012)

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Sports and Recreation Related Concussion Statistics

 Children under 10 years – concussions mainly due to

non-sports-related falls (home, school, playground)(Karlin, A, 2011)

 Children over 10 years – concussions mainly due to

sports-related injuries.(Karlin, A, 2011)

 5 main causes of concussion due to sports and

recreation in children aged 5 to 18 years:

 bicycling, football, basketball, playground activities, and soccer.

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http://www.ncaa.org/health-and-safety/medical- conditions/ssi-task-force-explores-issues-challenges-around- concussions

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What do we know and think we know about concussions in youth

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What we know about concussions

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#6 Concussions are Cumulative

 History of one or two previous concussions elevates concussion risk.

Sustaining multiple concussions places high school athletes at greater risk for worse neurobehavioral outcomes. (Collins, M. et al, 2008)

 After 1 concussion, the individual is 3 times likely to get another

concussion.

 In some athletes with multiple concussions, there is the possibility of

long-term neuropsychiatric effects which include psychiatric (mood disorders, addictions, psychosis etc.), physical (sleep disturbance etc.) and cognitive impairment. (Laker, S. 2011)

 ‘No standards exist for how many concussions are too many.’ (Apps, J.,

2012)

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C.Giza, BIS 2015

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  • Synapses (connections between

neurons)in the gray matter (outer layer of the brain) are overproduced during early adolescence.

  • The growth is followed by ‘pruning’ of the

synapses.

  • Synapses ‘exercised’ by experience are

strengthened (e.g. learning a new language, learning a new sport) while

  • thers wither away if not used. Brain

becomes more efficient.

  • Frontal lobes are responsible for more

"top-down" control, controlling impulses, and planning ahead (hallmarks of adult behavior) — and are among the last regions of the brain to mature (mid-20s and onwards).

(http://www.nimh.nih.gov/health/publications/the-teen-brain-still- under-construction/the-changing-brain-and-behavior-in-teens.shtml)

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Brain development ages 0 to 3

The most rapid postnatal brain growth occurs in the first three years of life By a g e 3 , a c h ild’s brain has f

  • rmed 1,000 trillion

connections, twice as many as adults have By early adolescence, the brain is eliminating more synapses than it is producing By late adolescence, half of the synapses have been discarded, leaving 500 trillion. This number remains fairly constant through the rest of the life cycle.

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Gogtay, Giedd et al PNAS 2004. N = 13 (7 male, 6 female) typical subjects

Maturation process

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Once a concussion occurred…

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Acute management of concussion at school

 Important to suspect a concussion if a student experienced a blow to the

head

 If in doubt: call 9-1-1  Red flags:

 loss of consciousness  Seizures  Potential spine injury  Unwitnessed  High impact

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Return to Activity

 Return to learn before return to sports

– especially if return to contact sports is premature

 Return to activity after initial rest period is likely safe and beneficial

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Simple Complex

RECOVERY

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Road of recovery

 In majority of kids and adolescents:

85%

 Symptom free by 4 weeks  No risk factors for slow recovery  Progressive improvement  No mental health or LD  No drug or alcohol use history

COMPLEX

13-15 % will have persistent sx by 3 months and 2% by one year . (Barlow,K. 2010)

Anticipate prolonged recovery if risk factors present

‘concussion was actually a more severe injury

Concussion and mental health

Concussion and chronic headaches

Always ask why is my student not recoVering as expected

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Adapted from Dr. D. Arciniegas, BIS 2015

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Adapted from Dr. D. Arciniegas, BIS 2015

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K.Barlow et al, Pediatrics,2010

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REHABILITATION

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Focus on Healthy Lifestyle

 Improves sleep  Mood  Sense of well-being  Concentration  Brain healing 

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Effect of prolonged rest

Social consequences

  • Isolation from friends
  • Loss of social engagement

with team mates

  • Loss of self esteem

Physical consequences

Deconditioning Weight gain Tachycardia and orthostatic hypotension Insomnia due to inactivity and worry Poor concentration – exercise improves attention

Emotional consequences

  • Loneliness
  • Isolation
  • Anxiety about school and

friends

  • Worry about brain injury
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Active Rehab versus Rest

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Return to School Guidelines for Concussion Management

 ‘Concussion is a medical event and the recovery spans

the home and school setting for 3 or more weeks.’ THUS, ‘Communication and collaboration between student, parents, educators and health care providers is vital.’

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(McAvoy, K., 2009)

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Why Is The Student So Tired?

Energy Crisis in the Brain

Neurometabolic Cascade following TBI (Giza & Hovda, 2001)

Period between concussion and recovery: “window of vulnerability” (return to play during this time could cause more severe or even catastrophic brain injury.)

Unsafe to return to sport until brain activity has returned to normal

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Symptom Wheel

(Colorado Dept. of Education Concussion Management Guidelines)

Colorado Dept. of Education: Concussion Management Guidelines, 2012 Authors: Karen McAvoy, PsyD and Kristina Werther, LCSW

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Emotional Changes

  • Irritability/easily angered
  • Frustration/impatience
  • Anxiety
  • Depression (can impact cognition)

May be related to poor sleep and/or pain May be difficult for parents and teachers to differentiate between adolescent behavior and concussion behavior (is the behavior different from prior to the concussion?)

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Cognitive (Thinking) Changes

(Returning to School After A Concussion: A Fact Sheet for School

Professionals, Centers for Disease Control and Prevention)

 Attention/Concentration  Memory  Slower thought processing

speed

 Reaction times (slower, more sluggish)

May be affected by Sleep, Mood and/or Pain

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Physical Symptoms (immediate or delayed)

 Headaches (most frequently reported)  Fatigue  Sleep disturbance  Dizziness/nausea  Sensitivity to noise or light  Visual changes

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RESOURCES

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Tiers of Service

Tier 4 subspecialty provincial service Tier 3 local regional service Tier 2 Pediatrician, local community providers, BIS, OT, PT, Tier 1 family doctor, ER, nurse practioners

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Berlin: 5th International conference on concussion in sport: October 27-28, 2016

GF Strong AC3 referrals for complex concussions: 604-734-1313