Sleep Dysfunction in Psychiatric Illness
Transcript of Sleep Dysfunction in Psychiatric Illness
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Sleep Dysfunction in Psychiatric Illness
Gregory Burek, M.D.
Veterans Retraining Program
Aurora Psychiatric Hospital
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Objectives
1. Briefly review Normal Sleep Architecture
2. Learn the effects of Sleep Deprivation on Body and Brain
3. Review interaction between Psychiatric Illness and Sleep
4. Look at Sleep Hygiene & CBT for Insomnia
5. Review medication effects on Sleep Architecture
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Effects of Sleep Deprivation
• Body• ↑ Adrenaline (Epinephrine)
• ↑ BP & HR → Cardiovascular disease
• ↑ Cortisol• ↑ Glucose → DM type 2• ↑ Weight gain → obesity• ↓ Immune function
• Fatigue, Weakness
• Brain• ↓ Serotonin = ↑ irritability, ↓ attention• ↓ Dopamine = ↓ pleasure/reward• ↑ Norepinephrine = ↑ anxiety/anger
• ↓ Memory• ↓ Concentration• ↓ Judgement
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Normal Sleep Architecture
• Stage 1 (N1)• “half” asleep• Easily aroused
• Stage 2 (N2)• Light sleep• Reduced movements
• Stage 3 (N3)• Slow-wave (deep) sleep• Delta (δ) waves – 0.5-4 Hz• “Refreshing sleep”
• Replenish pre-synaptic vesicles
• REM sleep• Dreaming• Memory Consolidation• 5HT & DA receptor re-sensitization
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Neurochemicals & Sleep Architecture
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Circadian Rhythm
• Melatonin• made by Pineal Gland• ↑ after sunset• Daylight inhibits• Light delays by 2-3 hrs
• Adenosine• made by all cells• breakdown of ATP• ↑ throughout the day• blocked by caffeine
modified from https://zellerag.com/wp-content/uploads/sites/4/2017/02/Adenosine-melatonin-mediated-effects.png
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Sleep DeprivationPre-synaptic
Neuron
• Harder to trigger post-synaptic neuron
• Post-synaptic receptors become desensitized
• Only fully restored during deep sleep
• Pre-synaptic cannot keep up with demand
• Pre-synaptic neuron gets depleted
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Sleep Deprivation
Norepinephrine(Fight/Flight)
Serotonin(calm)
Dopamine(pleasure)
• Well rested:
↓Norepi ↑Serotonin ↑Dopamine
• Sleep Deprived:
↑Norepi ↓Serotonin ↓Dopamine
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Trauma & Stress
Posttraumatic Stress
A. Exposure to actual or threatened death, serious injury, or sexual violence
B. Intrusion symptoms:
1. Involuntary, and intrusive distressing memories
2. Distressing dreams
3. Dissociative reactions (e.g., flashbacks)
4. Intense / prolonged psychological distress to cues (triggers)
5. Marked physiological reactions to cues (triggers)
C. Avoidance
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Trauma & Stress
Posttraumatic Stress
E. Marked alterations in arousal and reactivity:
A. Irritable behavior and angry outbursts (with little or no provocation)
B. Reckless or self-destructive behavior.
C. Hypervigilance.
D. Exaggerated startle response.
E. Problems with concentration.
F. Sleep disturbance (e.g., difficulty falling or staying asleep or restless sleep).
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PTSD sxTriggers
↑ PTSD sx↑ Triggers
PTSD & Insomnia
↑ Norepinephrine
↑ Latency↑ Nightmares
↑ Fragmentation↑ WASO
↓ SWS (N4)↓ Efficiency
↑ Norepinephrine↓ Serotonin↓ Dopamine
• Nightmares & Sleep Fragmentation most common symptoms in PTSD
• Sleep disruption reported in 70-87% of PTSD pts
• Sleep disturbance may predict the development of PTSD• Sleep complaints (insomnia, nightmares) at 1
month (not at 1 week) after trauma, are significant predictor of PTSD at 12 months
• Absence of sleep symptoms during 1st month strong predictor of NOT developing PTSD
• Untreated sleep symptoms can persist for years and intensify daytime PTSD symptoms
• Sleep Architecture Changes:• ↑ REM density• ↑ brief awakenings • ↑ shifts from REM to NREM per hour• ↓ SWS (N4) sleep
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PTSD symptoms↑ PTSD symptoms
PTSD & Sleep-disordered Breathing
↑ Insomnia↑ Nightmares
↑ Sleep Fragmentation
↑ Apneas/Hypopneas
↓ Pcrit
↑ Airway Collapse
PTSD sxTriggers
↑ PTSD sx↑ Triggers
Hyperventilation↓ PCO2
↓ RR↓ PO2
↑ AHI/RDI↑ Nightmares
↑ Sleep Fragmentation
Central Events Obstructive Events
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Anxiety
Generalized Anxiety Disorder
A. Excessive anxiety/worry, >6 month
B. Difficult to control the worry
C. 3+/6 of the following symptoms:
• Restlessness, feeling “keyed up” or “on edge”
• Being easily fatigued.
• Difficulty concentrating or mind going blank.
• Irritability.
• Muscle tension.
• Sleep disturbance (difficulty falling/staying asleep, or restless, unsatisfying sleep).
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Anxiety & InsomniaStress
Anxiety
↑ Norepinephrine
↑ Latency↑ WASO
↓ Efficiency
↑ Norepinephrine↓ Serotonin↓ Dopamine
↑ Stress↑ Anxiety
• Anxiety disorder in 33.1% of those who report insomnia
• Insomnia occurs in up to 2/3 of patients with social anxiety
• 7x Higher lifetime prevalence of sleep disturbance in GAD.
• Anxiety often occurs before (43.5%) or at time of (38.6%) onset of insomnia
• PSG results vary but trend…• ↑↑ Sleep Latency• ↓ Total Sleep Time• ↑ Wake After Sleep Onset
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Depression
Major Depressive Disorder
A. 5+ of following symptoms:
• Depressed mood or Anhedonia (lack of interest/pleasure)
• Weight loss/gain or decrease/increase in appetite
• Insomnia or hypersomnia nearly every day.
• Psychomotor agitation/retardation
• Fatigue or loss of energy
• Feelings of worthlessness or excessive/inappropriate guilt
• Poor concentrate or indecisiveness
• Recurrent thoughts of death or suicidal ideation
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↑ Stress↑ Depression
Depression & InsomniaStress
Depression
↑ Norepinephrine
↑ Latency↑ WASO
Early wake-up↓ Efficiency
↓ REM Latency
↑ Norepinephrine↓ Dopamine
• Depression can present as insomnia• Insomnia is seen in >90% of patients with
clinical depression.
• Depression is a risk factor for developing insomnia • odds ratio of 6.2
• Insomnia is a risk factor for developing depression• odds ratio of 6.2
• Insomnia is an indicator for relapse
• Higher levels of insomnia and depression corresponded to significantly greater intensity of suicidal thinking
• Need N3 to replenish presynaptic vesicles• Need REM to desensitize 5HT & DA receptors
Khurshid K.A. Comorbid Insomnia and Psychiatric Disorders: An Update. Innov. Clin. Neurosci. 2018;15:28–32. [PMC free article] [PubMed]
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Bipolar Disorder
Bipolar I disorder
A. Persistently elevated, expansive, or irritable mood and increased activity/energy. >1 week
B. 3+ of the following symptoms:
1. Inflated self-esteem or grandiosity
2. Decreased need for sleep (e.g., feels rested after only 3 hours of sleep)
3. More talkative or pressured speech
4. Flight of ideas or racing thoughts.
5. Distractibility
6. Increase in goal-directed activity or psychomotor agitation
7. Increased risk-taking behavior
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↑ Stress↓ Sleep↑ Mania
Stress↓ Sleep
Mania
Bipolar & Insomnia
• Decreased need for sleep (while maintaining energy) is hallmark of Mania• Present is very few other disorders• Many pts have died from total sleep deprivation
• Sleep deprivation is one cause of mania, triggered by…• Drugs of abuse / prescribed medications• Travel (jet lag)• Postpartum• Bereavement
• ↓↓ Total Sleep Time (TST)• TST is a predictor of manic episodes• TST may be a marker of response
↑ Norepinephrine↑ Epinephrine
↓ Need for Sleep
↑ Norepinephrine↑ Dopamine (early)↓ Dopamine (late)
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Medication
Sleep
Latency N1 N2 N3
REM
Latency REM WASO
Alcohol ↓ ↓ ↑ ↓↓ ↓ ↓
Barbiturates ↓ ↓ ↑ ↓ ↓↓ ↓
Benzodiazepines ↓ ↓ ↑ ↓↓ ↓ ↓
Opioids ↓ ↓ -
Stimulants ↑ ↑ ↓ ↓ ↑
Caffeine ↑ Phase delay in circadian rhythm
Steroids (Prednisone) ↑ ↑
THC (Acute use) ↓ ↑ ↓
THC (Chronic use) - - ↓↓
Medication
Sleep
Latency N1 N2 N3
REM
Latency REM WASO
Alcohol ↓ ↓ ↑ ↓↓ ↓ ↓
Barbiturates ↓ ↓ ↑ ↓ ↓↓ ↓
Benzodiazepines ↓ ↓ ↑ ↓↓ ↓ ↓
Opioids ↓ ↓ -
Stimulants ↑ ↑ ↓ ↓ ↑
Caffeine ↑ Phase delay in circadian rhythm
Steroids (Prednisone) ↑ ↑
Medication
Sleep
Latency N1 N2 N3
REM
Latency REM WASO
Alcohol ↓ ↓ ↑ ↓↓ ↓ ↓
Barbiturates ↓ ↓ ↑ ↓ ↓↓ ↓
Benzodiazepines ↓ ↓ ↑ ↓↓ ↓ ↓
Opioids ↓ ↓ -
Stimulants ↑ ↑ ↓ ↓ ↑
Caffeine ↑ Phase delay in circadian rhythm
Medication
Sleep
Latency N1 N2 N3
REM
Latency REM WASO
Alcohol ↓ ↓ ↑ ↓↓ ↓ ↓
Barbiturates ↓ ↓ ↑ ↓ ↓↓ ↓
Benzodiazepines ↓ ↓ ↑ ↓↓ ↓ ↓
Opioids ↓ ↓ -
Stimulants ↑ ↑ ↓ ↓ ↑
Medication
Sleep
Latency N1 N2 N3
REM
Latency REM WASO
Alcohol ↓ ↓ ↑ ↓↓ ↓ ↓
Barbiturates ↓ ↓ ↑ ↓ ↓↓ ↓
Benzodiazepines ↓ ↓ ↑ ↓↓ ↓ ↓
Opioids ↓ ↓ -
Medication
Sleep
Latency N1 N2 N3
REM
Latency REM WASO
Alcohol ↓ ↓ ↑ ↓↓ ↓ ↓
Barbiturates ↓ ↓ ↑ ↓ ↓↓ ↓
Benzodiazepines ↓ ↓ ↑ ↓↓ ↓ ↓
Substance Abuse – Drug Effects on Sleep
Medication
Sleep
Latency N1 N2
N3
(deep)
REM
Latency REM WASO
Schierenbeck T, Riemann D, Berger M, Hornyak M. Effect of illicit recreational drugs upon sleep: cocaine, ecstasy and marijuana. Sleep Med Rev. 2008;12:381–389.
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• Keep a consistent sleep schedule. Get up at the same time every day, even on weekends.
• Set a bedtime that is early enough for you to get at least 7 hours of sleep.
• Establish a relaxing bedtime routine.
• If you don’t fall asleep after 20 minutes, get out of bed.
• Use your bedroom only for sleep and sex.
• Make your bedroom quiet, dark and relaxing. Keep the room at a comfortable, cool temperature.
• Limit exposure to bright light in the evenings. (Blue light filters)
• Turn off electronic devices at least 30 minutes before bedtime.
• Don’t eat a large meal before bedtime. If you are hungry at night, eat a light, healthy snack.
• Exercise regularly and maintain a healthy diet.
• Avoid consuming caffeine in the afternoon or evening.
• Avoid consuming alcohol before bedtime.
• Reduce your fluid intake before bedtime.
Treatments - Sleep Hygiene
modified from http://www.sleepeducation.org/essentials-in-sleep/healthy-sleep-habits
Be consistent
Darkness
Reduce Intake• caffeine• alcohol• food• fluid
Sleep in Bed
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Visible Spectrum – Light
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What color temperature is right for me?Understanding Kelvin temperature (K) makes it easier to choose lighting that gives you the look and feel you want.
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• 6 sessions, once per week.
• Keep a sleep journal
• Focus on:• sleep hygiene
• stimulus control
• sleep restriction
• cognitive restructuring
• Interdepartmental Referral
• CBT-i Coach – VA mobile app https://mobile.va.gov/app/cbt-i-coach
Treatments – CBT for Insomnia (CBT-i)
https://www.ptsd.va.gov/professional/co-occurring/sleep_problems_veterans_ptsd.asp
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Medication Effects
Medication
Sleep
Latency N1 N2 N3
REM
Latency REM WASO
Barbiturates ↓ ↓ ↑ ↓ ↓↓ ↓
Benzodiazepines ↓ ↓ ↑ ↓↓ ↓ ↓
GABAA agonists ↓ ↓ ↑ - ↓ ↓
Opioids ↓ ↓ -
Stimulants ↑ ↑ ↓ ↓ ↑
Caffeine ↑ Phase delay in circadian rhythm
Pregabalin ↓ ↑ ↓
Phenobarbital ↓ ↓ ↓
Phenytoin ↓ ↑ ↓ ↓
Carbamazepine ↓ ↑ ↓
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Medication Effects
Medication
Sleep
Latency N1 N2 N3
REM
Latency REM WASO
Diphenhydramine ↓ ↓ ↓
Melatonin ↓ Phase advance in circadian rhythm
Ramelteon (melatonin-RS) ↓ ↓ - - - -
Suvorexant (orexin-RA) ↓ - - - ↑ ↑ ↓
SSRIs ↑ ↑ ↓ ↑Tertiary TCAs (doxepin,
amitriptyline) ↓ ↑ ↓ ↓
MAOIs ↑ ↓↓ ↑
Trazodone ↓ ↑
Mirtazapine ↓ - - ↓/- - ↓
Atypical Antipsychotics ↓ ↑ ↓ ↓
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Medication Effects
Medication
Sleep
Latency N1 N2 N3
REM
Latency REM WASO
β-blockers (lipophilic) reduce melatonin production ↓ ↑
Prazosin (α1-antagonists) - - - ↑ ↓
Clonidine (α2-agonists) ↓ ↓ ↑ ↓ ↓
General rules:• Any medication that gets in to the brain will effect sleep.• Anticholinergic effects (cumulative effect) will reduce Sleep latency, REM, and next day
cognitive performance.• Benzodiazepines, like alcohol, block Stage 3 (deep sleep)
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