sleep & adhd - chesapeake bay academy · 2019. 12. 18. · sleep recognize related conditions...
TRANSCRIPT
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Evaluating & Managing Sleep Problems: The
Sleep/ADHD Conundrum
J. D. Ball, Ph.D., APBB
Co-Director, The Neuropsychology Program
Professor and Vice Chair
Psychiatry & Behavioral Sciences
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The brain starts to work the moment you are born. It never stops until you stand up to speak in public.
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Objectives
Recognize implications for sleep from having ADHD
Recognize implications for ADHD of getting good sleep
Recognize related conditions that may influence sleep and ADHD symptoms
Learn to better manage ADHD through improved Sleep
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Sleep and the Brain
Extensive neuroscience research shows that sleep changes brain functioning.
Both learning and memory are improved (consolidated) when followed by good sleep -
Information processing
Long term memory
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Effects of Too Little Sleep
Too little sleep undermines mental functioning in both adults and children
Children restricted to 5 hours of sleep have shown
Daytime sleepiness
Diminished verbal processing
Reduced creativity
Impaired abstract reasoning (Randazzo, et al., 1998)
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Effects of Fragmented Sleep
Fragmented sleep, sleep deprivation, and poor
sleep quality lead to Inattention and poor executive functioning (Sadeh et
al., 2002)
Irritability; Behavior problems
Emotional Instability
Low frustration tolerance (Dahl, 1996)
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Health Effects: Too Little Sleep
Obesity
Diabetes
Hypertension
Metabolic Syndrome
Cardiovascular Problems
Accidental injuries in children
Increased risk of motor vehicle accidents
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How Sleep Is Regulated
Homeostatic Sleep Drive
Circadian Cycle
Sleep Influences Physiologic (hunger, exercise, disease, medication, etc.) Behavioral (sleep/wake schedule, etc.) Environmental (temperature, noise, light, etc.)
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Circadian Cycle in the Brain
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New Research Link: ADHD/Sleep
Children with ADHD have elevated polymorphisms of CLOCK genes
T3111C was higher when parents reported sleep disturbances
Circadian rhythm is known to be influenced by CLOCK genes that affect sleep-wake cycle through release of melatonin and cortisol
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Sleep and ADHD
Both sleep problems and ADHD represent brain arousal disorders
Brain systems for Attention-Arousal and Sleep Regulation are essentially the same
Structural Description - lower brain reticular activation, thalamus, projection paths to pre-fontal areas of the cortex – executive functioning
Neurochemical Description- primary noradrenergic and dopaminergic neurotransmission
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What’s the Conundrum?
Sleep problems worsen ADHD symptoms
ADHD worsens sleep problems, with or without medication
Medication for ADHD may further interfere with sleep
Medication for ADHD may mask serious sleep problems that then go untreated
For example, obstructive sleep apnea
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ADHD / Sleepiness Present Alike
Subjectively tired, drowsy, fatigued (poor self-awareness)
Yawning, rubbing eyes, resting head
Impulsivity, hyperactivity, aggression
Mood lability
Neurocognitive deficits
• Decreased cognitive flexibility
• Decreased verbal creativity
• Diminshed abstract reasoning
• Memory impairments
• Poor motor skills
• Decreased attention and vigilance
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ADHD adds to sleep instability
ADHD is a form of arousal dysregulation
ADHD is partly characterized by unstable sleep
ADHD children are consistently sleepier than children without ADHD, as measured by mean sleep latency tests
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Sleep and Development
Sleep = 40% of childhood
Prevalence of disturbed sleep and daytime sleepiness (Barkley, 2015):
23% in neurotypical children
56% among those with ADHD
• 53-64% unaffected by medication (Ball, et al., 1997)
• 52% vs. 21% evident from infancy (Trommer et al., 1988)
Sleep Disorders are very prevalent among neurodevelopmental disorders generally – 86%?
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Sleep problems more common with ADHD than with other referral reasons
0
10
20
30
40
50
60
70
Sleep
Problems
Often Up Night Light
ADHD with
Medication (n = 28)
ADHD no Medication
(n = 74)
Comparison Group (n
= 78)
Ball, Tiernan, Janusz & Furr (1997)
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Parent Report: ADHD Sleep Problems?
More daytime sleepiness
Reduced total sleep time
More difficulty falling asleep
More frequent awakenings
More bedwetting
More habitual snoring
More sleepwalking
More restlessness
More nightmares and anxiety
More sleep resistance
More teeth grinding (bruxism)
More difficulty with AM awakening
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Polysomnogram and ADHD
Polysomnogram studies have often not shown differences in sleep architecture of children with ADHD, but
Children with ADHD are more likely than controls to suffer from periodic limb movements (PLMS)
They are more active during sleep
They have more daytime sleepiness and show sleepiness on mean sleep latency tests
Age appears to be a significant moderator in that young children with ADHD may have greater problems with total sleep time and stage 1 sleep
[Adaeh, Pergamin & bar-Haim (2006) ---- meta-analysis
12 studies; 11 journals; 331 ADHD vs. 231 controls]
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Parent Report vs. Polysomnogram?
Some bedtime problems may be part of ADHD presentation
Sleep difficulties may stem from comorbid other conditions (e.g., ODD, OCD, anxiety, depression, ASD)
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ADHD May Influence Circadian Rhythm
Persons with ADHD show higher daytime activity especially in the afternoon, which can affect circadian rhythm
Children with ADHD show higher heart rate, especially during afternoon and at night, which can affect circadian rhythm
Thus, ADHD (and/or stimulants for it) can alter circadian rhythm, contributing to sleep problems
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Sleep Disorders May Present Like ADHD
Obstructive Sleep Apnea/Hypopnea Syndrome (OSAS)
Primary Snoring
Restless Legs Syndrome
Periodic Limb Movement Disorder
Narcolepsy
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Obstructive Sleep Apnea Syndrome (OSAS)
Peak age 2 - 7 years
2nd peak in adolescence (obesity is then a major risk factor)
Prepubertal: female = male
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Sleep Apnea: Nocturnal ymptoms
• Loud snoring Respiratory pauses, snorts, gasps Increased respiratory effort / paradoxical breathing Restless sleep Sweating Unusual sleeping positions
Parental anxiety level
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Sleep Apnea: Day Symptoms
• Difficulty with AM waking
Early AM headaches Complaints of daytime sleepiness Hyperactivity, poor impulse control Aggressiveness Attention span problems Shyness / social withdrawal Learning problems School failure
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Underachieving Children With Sleep Disordered Breathing (SBD)
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
1st grade
GPA
2nd
grade
GPA
Treated (n = 24)
Untreated (n = 30)
Snorers (n - 66)
Controls (n = 177)
N = 297 children < 10th percentile in class rank Grouped by (1) SBD using pulse oximeter and partial pressure CO2, (2) primary snoring, or (3) controls Treating SBD kids significantly improved their GPA
Gozal (1998) Pediatrics
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Adolescents /ADHD / Sleep: The Perfect Storm
Stay up later but don’t get up later
Due to circadian rhythm differences, older adolescents are biologically suited for later AM awakening
High school teens average 1 hour less sleep than middle school teens
But sleep need is not reduced
EVMS sleep lab research found that local teens in schools with earlier start times had more car crashes (Vorona et al., 2011)
This research has been replicated elsewhere
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Evaluation Implications
Assess for sleep duration and quality with every ADHD evaluation
Assess for ADHD when doing sleep evaluations
Determine whether there may be
Only ADHD
Only a Sleep Problem
Both ADHD and a Sleep Problem
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Patient/Parent Role: Evaluation
Notice and report
Sleep Duration and Quality Problems
Sleep Related Breathing Problems
Daytime Sleepiness
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Treatment Implications: Rx
Evaluate sleep effects of ADHD Rx
Melatonin before bed?
½ hour improvement in sleep onset in children compared to placebo
No improvement in bedtime behavior, cognition, or quality of life
Clonidine and L-thenaine also helped
Zopidem ineffective; neg side effects
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Treatment Implications
Education about ADHD and sleep
Education about sleep hygiene
Structure children’s sleep toward better sleep hygiene
Later school start times for adolescents
Shift sleep phase gradually over time
Employ behavioral interventions to assist sleep
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Fact Check
Children who do not get enough sleep are more likely to be underweight than overweight.
False
23% of parents answered correctly in research by Judy Owens (2011)
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Fact Check
Being overweight can increase a child’s risk of sleep problems.
True
59% of parents answered correctly
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Fact Check
Snoring indicates a child is sleeping well.
False; 49% correct
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Being under- or overactive can be warning signs that a child is not getting enough sleep.
True; 53% correct
Fact Check
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Fact Check
Watching TV in the bedroom makes it more difficult for children to fall asleep.
True; 64%
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Children should have the same bedtime and wake time on weekdays and weekends.
True; 55%
Fact Check
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Well-rested children do not need an alarm clock to wake up in the morning.
True; 46%
Fact Check
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The average preschooler needs 10 hours of sleep per 24 hours.
False; 7%
Fact Check
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The average school-aged child needs 8 hours of sleep per 24 hours.
False; 11% correct
Fact Check
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Parent Research: Problem Practices Are Common (age 1 – 7)
70%: Adult present in room at sleep onset at least a few nights/week
79%: At least one electronic device in the bedroom (TV, DVD, computer)
76%: Parents underestimated sleep needs of their own child
60%: Watching TV is part of bedtime routine
43%: Bedtime after 9 PM
42%: No regular bedtime for all 7 nights/wk
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“Never miss a good chance to shut up.” Will Rogers