SCIENCE S , SLEEPINESS AND SLEEPLESSNESS€¦ · avoid heavy meals w2b if you are happy with your...
Transcript of SCIENCE S , SLEEPINESS AND SLEEPLESSNESS€¦ · avoid heavy meals w2b if you are happy with your...
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SLEEP SCIENCE:
SLEEP, SLEEPINESS, AND SLEEPLESSNESS
Kenneth Lichstein, Ph.D.Professor EmeritusDepartment of PsychologyThe University of Alabama
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DO YOU KNOW WHAT WEEK THIS IS?
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It is DDP week!!
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National Sleep Foundation announces--
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sleeplessness
I don’t want to be awake: insomnia
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Topics
artist conceptions
insomnia diagnosis
epidemiology
Vgontzas et al., 2001
assessment
CBTi
exogenous chemicals
hypnotics
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insomnia: diagnostic criteria for chronic insomnia disorder
complaint of difficulty initiating or maintaining sleep, early awakening
report of daytime impairment in at least one of the following▪ fatigue▪ cognitive functioning▪ social/occupational/school▪ mood▪ sleepiness▪ motivation/energy▪ prone to errors▪ worry about sleep
adequate opportunity for sleep disturbed sleep present at least 3 week for 3 months not attributed to another sleep disorder
ICSD III, 2014
what’s missing?
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insomnia: causes
brain hyperarousal
physiological hyperarousal
worry about sleep *
negative conditioning
stress: financial, social, occupational, school
bereavement
medical illness
psychiatric illness
stimulating drugs
personality style: anxious or obsessive
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Insomnia
Types
Onset
Maintenance
Terminal
Mixed
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epidemiology of insomnia
There are about 80 studies on insomnia prevalence.
▪ 30% of the population frequently complain of insomnia
▪ 8% meet diagnostic criteria
▪ more common in women
▪ occurs in all ages: most common in older adults
▪ older adults are disproportionately high users of hypnotics
❖ high use
❖ longer term use
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Impact of Insomnia
• Degrades quality of life
– impaired daytime functioning
– sleep obsession
• Risk of hypnotic-dependent sleep disorder
– impaired nighttime functioning
– impaired daytime functioning
• Health risk factor
– depression/suicide, anxiety, hypertension, drug abuse or relapse, all cause mortality
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difference during 9 pm – 12:30 am
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causal path?
• elevated cortisol causes insomnia
• insomnia causes elevated cortisol
• a third factor causes both
o worry disposition
o obsessive disposition
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Assessment procedures
sleep interview
sleep diaries
other sleep disorders
PSG/actigraphy
Werner Heisenberg's warning
Heisenberg Uncertainty Principle
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insomnia interview
▪ perceived cause of insomnia
▪ sleep parameters
▪ daytime functioning❖ anxiety, depression, fatigue, memory/attention
❖ sleepiness❖ worry
▪ sleep history & prior treatments
▪ mental health, physical health, drugs
▪ sleep hygiene
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Consider Other Sleep Disorders
Sleep Apnea
Delayed Sleep-Wake Phase Disorder
Restless Legs Syndrome
Periodic Limb Movement Disorder
Narcolepsy
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CBTi, first line treatment
"Recommendation 1: ACP recommends that all adult patients receive cognitive behavioral therapy for insomnia (CBT-I) as the initial treatment for chronic insomnia disorder."
Qaseem, Kansagara, Forciea, et al., 2016
American College of Physicians, 150,000 members
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Spielman Model of Chronic Insomnia
Spielman et al., 1987
PREDISPOSINGhyperarousal, anxious
type, decreased
homeostatic drive
PRECIPITATINGstress- family, health, work
PERPETUATINGexcessive time in bed,
increase caffeine or
alcohol, worry about sleep
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primary psychological treatments:CBTi
relaxation
stimulus control
sleep restriction
cognitive therapy
sleep hygiene
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Relaxation
quiescent self-inquiry Relaxation Response (Benson, 1975)
▪ quiet environment▪ object to dwell upon (monotonous stimulation)▪ passive attitude▪ comfortable position
methods▪ dozens of methods of relaxation (e.g., progressive
muscle relaxation, autogenic training, biofeedback, meditation)
▪ most effective method is the one patient is wiling to practice
Lichstein, 2000
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stimulus control
eliminate nonsleep activities from bedroom-reading, TV, awake in bed
go to bed only when sleepy
exit bedroom if awake after 15-20 min
exit bedroom after middle of night awakening after 15-20 min
awaken at a fixed time every day
minimize napping
Bootzin & Epstein, 2000
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sleep restriction
determine mean TST from 2 weeks of diaries
match TIB to TST; minimum TIB = 4.5 hours
phone answering machine daily on TIB & TST
if mean SE 90% for previous 5 days, increase TIB 15 min for at least next 5 days
if mean SE < 85% for previous 5 days, decrease TIB to match mean TST of previous 5 days for at least next 10 days
if mean SE 85% and < 90% for previous 5 days, no change in TIB
no nappingWohlgemuth & Edinger, 2000
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cognitive therapy
exaggerated worrisome response may contribute to initiation of insomnia
exaggerated worry about impact of insomnia may sustain poor sleep
dysfunctional beliefs about sleep may promote maladaptive habits▪ napping▪ excessive TIB
treatment: recognize self-defeating beliefs and replace with constructive beliefs
example:▪ “If I don’t get a good night’s sleep, I will be a wreck tomorrow.”▪ “If I don’t get a good night’s sleep, I may not be at my best
tomorrow but I will be able to get my work done.”
Morin et al., 2000
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sleep hygiene
minimize caffeine
minimize naps
minimize exercise within 2 hr of bedtime (w2b)
avoid smoking w2b
avoid alcohol w2b
avoid heavy meals w2b
if you are happy with your sleep, keep doing what you are doing
Riedel, 2000
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summary efficacy
80% show meaningful
improvement
total wake time 50%
total sleep time 30 min
older adults respond as well as
younger adults
Morin et al., 1994
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secondary insomnia
late-life insomnia
hypnotic-dependent insomnia
secondary insomnia/comorbid insomnia
late-life insomnia
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aging and sleep: current perspectives
insomnia and other sleep disorders (apnea, restless legs) increase with age
after controlling for comorbidity and other sleep disorders, healthy elder sleep is good
Ohayon, Carskadon, Guilleminault, & Vitiello, 2004;
Vitiello, Moe, & Prinz, 2002
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alcohol
sedative
▪ metabolized within a few hours
▪ rebound wakefulness with alcohol withdrawal, N3 ↓
▪ REM suppression REM rebound (nightmares)
respiratory suppressant
commonly used by people with insomnia
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caffeine
sensitivity varies greatly between people and across lifespan
adenosine suppression
average cup of coffee = 100 mg
half-life varies between 4-8 hr
¼ of caffeine from morning coffee active at bedtime
effects
▪ SOL ↑, WASO ↑, TST ↓, N3 ↓
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nicotine
natural to tobacco
addictive stimulant
similar to caffeine
effects weaker than caffeine
▪ SOL ↑, WASO ↑, TST ↓, N3 ↓
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summary truths
No sleep medication can restore normal sleep.
Every drug has wanted and unwanted effects.
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drug processes
pharmacodynamics▪ organ effects
▪ receptor site sensitivity
▪ age, gender, race, health status
pharmacokinetics▪ drug path
▪ Cmax [peak concentration]
▪ Tmax [time to peak concentration]
▪ T1/2 [time to ½ concentration]
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pharmacokinetics
zolpidem 1.5 hr
zolpidem 2.5 hr
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12 FDA approved hypnotics
Generic name Brand name
estazolam Prosom
flurazepam Dalmane
quazepam Doral
temazepam Restoril
triazolam Halcion
eszopiclone Lunesta
zaleplon Sonata
zolpidem (Zolpimist, Intermezzo) Ambien
zolpidem controlled release Ambien CR
ramelteon Rozerem
doxepin hydrochloride Silenor
suvorexant Belsomra
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0.20.20.20.20.20.30.30.30.40.40.5
0.60.7
0.8
2.1
2.7
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Traz
odon
e
Zolpidem
Amitriptyline
Mirtaz
apine
Temaz
epam
Que
tiapine
Zaleplon
Clona
zepa
m
Hyd
roxy
zine
Alprazo
lam
Loraze
pam
Olanz
epine
Fluraz
epam
Dox
epin
Cyc
lobe
nzap
rine
Diphe
nhyd
ramine
Walsh, 2004
Drugs Most Commonly Used
for Insomnia in 2002
Occurr
ences
(Mill
ion
s)
not FDA approved for insomnia** *** ** **
*
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Hypnotic Advantages
Convenience
Short-term efficacy
Most appropriate for:▪ adjustment insomnia, jet lag
▪ intrusive comorbid insomnia
▪ chronic insomnia with intermittent dosing
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Hypnotic Disadvantages
REM & N3 suppressionDaytime impairment
• cognitive functioning• alertness• balance• anterograde amnesia
Impairment during the sleep periodRebound insomnia/anxiety/nightmares with
abrupt withdrawal
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Hypnotic Risks
Tolerance-dependence
• “hypnotic-dependent sleep disorder”
Automobile accidents
Accidental falls
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FDA.gov safety concerns
daytime impairment▪ “FDA warns of next-day impairment with sleep aid Lunesta
(eszopiclone) and lowers recommended dose.”▪ “FDA approves new label changes and dosing for zolpidem
products and a recommendation to avoid driving the day after using Ambien CR.”
women▪ “FDA has informed the manufacturers that the recommended
dose of zolpidem for women should be lowered from 10 mg to 5 mg for immediate‐release products (Ambien, Edluar, and Zolpimist) and from 12.5 mg to 6.25 mg for extended‐release products (Ambien CR).”
elderly and infirm▪ “Elderly or debilitated patients may be especially sensitive to the
effects of Ambien (zolpidem tartrate). Patients with hepatic insufficiency do not clear the drug as rapidly as normals. An initial 5 mg dose is recommended in these patients.”
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sampling major side effects,FDA webpage
zolpidem (Ambien)
eszopiclone (Lunesta)
suvorexant (Belsomra)
abnormal thinking and behavioral changes (hallucinations, sleep driving, suicidal thoughts)
unpleasant taste in mouth
dry mouth drowsiness dizziness headache symptoms of the
common cold
sleepiness during the daynot thinking clearlyact strangely, confused,
or upset“sleep-walking” or doing
other activities when you are asleep like eating, talking, having sex, or driving a car
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patient reviews of Belsomra
the first 2 reviews that came up:
1. “Belsomra is the miracle I have been waiting for my whole life.”
2. “Worst garbage I've ever taken to help me sleep.”
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risk of car wrecks, all ages
hypnotic benzodiazepines
user nonuser
rela
tive r
isk
0
1
2
3
4
5
Neutel,1995
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older adults risk of hip fracture
zolpidem
user nonuser
rela
tive
ris
k
0.0
0.5
1.0
1.5
2.0
2.5
Wang, Bohn, Glynn, et al., 2001
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Frey, Ortega, Wiseman, et al., 2011
zolpidem 5 mg
percent failed balance beam walk
5 mg zolpidem
subjects
younger older
pe
rce
nt
faile
d
0
10
20
30
40
50
60
70
practice
wake
sleep/placebo
sleep/zolpidem
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Other
diphenhydramine (Benadryl)
melatonin
valerian
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Wake Time After Sleep Onset
WASO
BZ NBZ AD
min
ute
s
-50
-40
-30
-20
-10
0
SOL
BZ NBZ AD
min
ute
s
-25
-20
-15
-10
-5
0
PSG
DIARY
Sleep Onset Latency
Total Sleep Time
TST
BZ NBZ AD
min
ute
s
-80
-60
-40
-20
0
20
40
60
80
100
Buscemi et al., 2007
*
*
*
*
*
*
*
*
*
**
*
*p < .05
BZ/NBZ Sleep Effects
PSG SOL ↓11.4 Diary SOL ↓18.3
PSG WASO ↓11.9 Diary WASO ↓27.5
PSG TST ↑22.0 Diary TST ↑42.0
11 minutes
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to be continued