Presentation on theme: "Sleep Medicine on the Fly- What Every Physician Should Know \Integration of Psychiatry into Primary Health Care Conference- January 2014 Deputy Psychiatrist."— Presentation transcript:
Sleep Medicine on the Fly- What Every Physician Should Know \Integration of Psychiatry into Primary Health Care Conference- January 2014 Deputy Psychiatrist in Chief- UHN Associate Professor Department of Psychiatry, University of Toronto Diplomate American Board of Psychiatry and Neurology Diplomate American Board of Sleep Medicine Specialty Certification in Psychosomatic Medicine Specialty Certification in Sleep Medicine Raed Hawa MD, FRCP, DABSM, DABPN
Disclosure: Dr. Raed Hawa Advisory board, speakers’ bureaus, grant, financial or research support No conflict of interest and no financial interest or other affiliation to declare
A Road Map? At the end of today's session participants are expected to: 1. improve their knowledge of sleep medicine as it pertains to their practice 2. become aware of the options that are available to treat these sleep disorders 3. appreciate the complexity and co-morbidity between psychiatric disorders and sleep disorders *It is all about how it applies to your practice*
Why should physicians be interested in sleep disorders? Sleep/tiredness/sleepiness complaints Insomnia is often an early presentation of a psychiatric or medical illness Many sleep disorders may mimic psychiatric illnesses ( sleep apnea and depression) Medications affect sleep Our patient population can benefit from basic sleep hygiene practices
QUESTION What is Philagrypnia?
Clinical Vingette David, a 48 yo married male, a banker, and a father of 2 ages 14 and 16. Long history of recurrent major depressive episodes with multiple trials of SSRIs, SNRIs and Bupropion Currently of Venlafaxine XR 225mg/day Current complaints of increased irritability and missing work that he attributes to poor sleep What might be the causes for David’s insomnia?
Tools to help us
SLEEP Awake – low voltage – random, fast N1-Stage 1 – 3 to 7 cps – theta waves Drowsy – 8 to 12 cps – alpha waves N2-Stage 2 – 12 to 14 cps – sleep spindles and K complexes N3 -Delta Sleep – 1 1/4 to 2 cps – delta waves > 75 mV R-REM Sleep – low voltage – random fast with sawtooth waves
Normal Sleep Histogram Hours of Recording REM W N1 N3 N
Is it a primary sleep disorder? Obstructive sleep apnea (4-8%) Restless leg syndrome (2-15%) Insomnia (10-30%) Parasomnia ( 5-10% ) EDS ( <5% )
OSAS Cessation of breathing lasting at least 10 seconds with desaturations and arousals. Some of the signs and symptoms: Snoring, gasping for air, stopping breathing at night, memory complaints, irritability, depression, morning headaches, sexual problems, restless sleep, and sedation or tiredness during the day.
OSAS Why treat? High blood pressure Heart problems- 8 to 10 times more likely to have heart attacks or strokes More health care money- 2.5 times more likely to visit a doctor More likely to die in their sleep- 2.5 times more likely Poor quality of life and 3 times more likely to be involved in car accidents
OSAS Rx Didgeridoo!! Weight loss/ Bariatric Surgery EPAP Surgery/ Pillar procedure/ Maxillofacial Dental Device CPAP – gold standard
If (s)he snores suspect apnea ALSO CONSIDER STOPBANG & MALLAMPATI
STOP BANG questionnaire Sdo you Snore Tdo you feel Tired, fatigued or sleepy O have you been Observed to stop breathing Phigh blood Pressure BBMI >35 AAge >50 NNeck circumference >40 GGender: Male Anesthesiology 2008; 108:
Does the patient have apnea? Her BMI is 22. She is on methadone for prior heroin abuse. She denies sleep difficulties but has been complaining of sleepiness. What would be your clinical concern?
What About This?
Restless leg syndrome First described by Willis in 1672 Diagnostic Criteria ( strictly clinical ): Desire to move limbs ( creepy crawly sensation, itchy and aching feeling, crampy and painful ) with Motor restlessness Worse at rest Temporary relief by activity Worse at night International RLS Study Group 2006
Periodic limb movements PLMS: Diagnosis is based on PSG findings. PLMD: PLMS plus sleep dysfunction. 80% of RLS patients have PLMS Asymptomatic PLMS does not require treatment.
RLS Rule out: Iron deficiency, Uremia, RA, Peripheral neuropathy, Diabetes, Pregnancy, Spinal cord lesion, Medications. “The Mimics” Akathisia ( drug induced or positional ), peripheral neuropathy, nocturnal leg cramps, sleep starts, anxiety, and psychosis.
Pathophysiology RLS SPECT/PET Reduction of caudate and putamen D2 receptor binding Brain Iron Transport CSF ferritin low- abnormal iron transport fMRI Decreased thalamic blood flow during RLS symptoms
Treatment RLS Dopamine Agonists Ropinirole to 3 mg (D2 agonist) Pramipexole to 1.5 mg (D2 and D3 agonist) Cabergoline-- 1 to 4 mg Pergolide to 0.75 mg Bromocriptine– 5 to 20 mg Ldopa-carbodopa– 25 to 400 mg
If your patient has RLS/PLMD? R/O other causes Check ferritin levels If less than 50 – treat with Fe Add vitamin C If no help, try medications
B. Wayne Blount, MD, MPH Professor, Emory S.O.M.
Insomnia- Scope of the Problem Prevalence: 30% of general population have complaints of sleep disruption and 10% have associated functional impairment Almost all major mental illness is associated with “some” sleep complaint Insomnia can be the presenting complaint for anxiety, depression or a sign of abuse potential Many medical problems can have sleep complaints as part of the presentation
Insomnia- Definitions Global dissatisfaction with sleep and one of: 1.Difficulty initiating sleep 2. Difficulty maintaining sleep 3. Early morning awakening With distress or impairment 3 nights/week for 3 months 3 months Despite adequate opportunity for sleep Episodic, persistent or recurrent
Pathophysiology of Insomnia Disorder of hyperarousal - hypervigilance during day with difficulty initiating/maintaining sleep during the night Cognitive model Physiologic model Neuroendocrine model Increased autonomic activity in sleep ( HR, MR, BP,Temperature,NE secretion, HPA activation) Increased beta/gamma and decreased delta EEG activity Increased brain glucose metabolism Sleep Med Rev (1):9-15
Why care about insomnia? Insomnia prevalence increases with greater medical comorbidity There is increased prevalence of medical disorders in those with insomnia Insomnia with objective short sleep duration is associated with high risk for hypertension Insomnia with objective short sleep duration is associated with high risk for type 2 diabetes Insomnia with objective short sleep duration is associated with neuropsychological deficits Sleep 2009;32: Sleep 2010;33: Sleep 2007;30920:
Treatment Options I. Behavioural and Cognitive therapies II. Prescription medications
Behavioural and Cognitive Therapies Standards of Practice Stimulus control Relaxation therapy Cognitive behavioural therapy CBT-I Stimulus control Sleep restriction Sleep hygiene Sleep 2006;29:
Clinical Practice Point Most behavioural treatments studied are six one-hour sessions by trained therapists There are a few basic principles that can be utilized in your practice Establish a rapport with your patient, listen, instill hope and follow-up Rely on principle of conditioning and good sleep hygiene practices Self monitoring, treatment rationale, and homework
Psychological & Behavioural Treatments For Chronic Insomnia Psychological / behavioural interventions Stimulus control therapy Relaxation training Cognitive behaviour therapy ± relaxation Sleep restriction Multicomponent* Paradoxical intention Biofeedback *stimulus control + relaxation + sleep hygiene OR stimulus control + sleep restriction + sleep hygiene.
FDA Approved Insomnia Treatment Immediate Release benzodiazepines Dose (mg)T1/2 (hr) Estazolam (ProSom ® )1, Flurazepam (Dalmane ® )15, Quazepam (Doral ® )7.5, Temazepam (Restoril ® ) Triazolam (Halcion ® ).125, Immediate Release Non- benzodiazepines Eszopiclone (Lunesta ® )1,2,35-7 Zaleplon (Sonata ® )5,101 Zopiclone (Imovane ® *)5, Zolpidem (Ambien ® ) (Sublinox *)5, Selective Melatonin Receptor Agonist Ramelteon (Rozerem ® ) Doxepin----3m and 6 mg(for maintenance insomnia) * Available in Canada and not in USA
Benzodiazepine Receptor Agonists All BDZ receptor agonists are GABA modulators at the GABA A receptor complex GABA A -receptor: pentamer Allows chloride ions to enter Greater polarization and hence inhibitory Non benzodiazepines have a higher degree of alpha 1 subtype selectivity
Recommendations For the Management of Insomnia: Pharmacotherapies Line of therapy Class of medicationExample medications 1 st line Short-intermediate acting benzodiazepines Melatonin receptor agonist Zolpidem, eszopiclone,* zaleplon,* temazepam Ex: agomelatine* 2 nd lineAlternate short-intermediate acting benzodiazepines Sedating antidepressants Trazodone, amitriptyline, doxepin, mirtazapine Insomnia + comorbid mood disorder Combined benzodiazepine and sedating antidepressants AnticonvulsantsGabapentin, tiagabine* Atypical antipsychoticsQuetiapine, olanzapine *not available in Canada.
Insomnia and Depression Up to 90% of MDE patients complain of insomnia Up to 40% of patients complaining of insomnia could have a mood disorder Subjective complaints of difficulty initiating, maintaining sleep or early awakening Objective findings: decreased REM latency, increased % REM, increased first REM period and decreased SWS
SSRIs and Sleep Idiosyncratic effects: can cause insomnia or agitation in any individual patient Up to 60% of patients on SSRIs are also on a hypnotic All SSRIs decrease SE, suppress REM, delay REM onset, and increase S1 sleep There appears to be a trend where: Fluvoxamine and paroxetine are more sedating Fluoxetine is more stimulating Sertraline, citalopram and escitalopram are neutral
Clinical Practice Point Trazodone, TCAs and mirtazapine are commonly used to help insomnia complaints in patients who suffer from depression or anxiety disorders SSRI could be used alone or with a BDZ/hypnotic to help insomnia complaints in depression Adjusting dose or timing can be helpful Combining medication with CBT is an option
Are Antidepressants To Blame For Sleep Disturbances? Data from placebo-controlled trials from respective product monographs; not for direct comparison between agents. Adapted from Lam et al. J Affect Disord 2009:17:S26-43 and Seroquel XR Product Monograph (2011). 0-9%10-29%≥30% Are Antidepressants to Blame for Sleep Disturbances?
Role for Antipsychotics A 45 year-old male was referred to see me for a sleep assessment By the time I saw him he was already put on olanzapine 2.5mg po qhs and has been “doing great”. He was not sure why he needed to see me now What are the effects of antipsychotics on sleep parameters? What is the evidence for use of antipsychotics in insomnia and in complicated insomnia?
Antipsychotics and Sleep Typical antipsychotics ClozapineRisperidoneOlanzapineQuetiapineZiprasidone Total Sleep Time +++ Sleep Efficiency +++ However consider: 1.Weight gain and therefore worsening of apnea 2.Increased leg restlessness 3.Hyperlipidemia 4.Glucose dysregulation 5.QT prolongation
Important Quotes- NIH Chronic Insomnia Panel “all (antipsychotics) agents have significant risks, and thus their use in the treatment of chronic insomnia cannot be recommended” Eszopiclone and zolpidem extended release are not indicated for “short term” use Intermittent vs regular prescription Short term vs long term prescription
Clinical Practice Point Antipsychotics are commonly used in patients who have psychosis and bipolar illness to help with sleep complaints Antipsychotics are sometimes used in patients whose depression is successfully treated but still complain of their sleep Potential effects on weight, lipids and glucose Quetiapine is commonly used for “psychiatric insomnia”
Back to David Is David’s insomnia most likely... A primary sleep disorder? A residual symptom of depression? Medication-induced? Due to poor sleep hygiene? Due to something else?
David is exhibiting residual symptoms of depression and mild anxiety His insomnia is affecting his work functioning Would you change his treatment plan? If yes, how? Back to David
Treatment of Insomnia What is the most common prescribed medication for the treatment of insomnia in the United States? in Kuwait?
Clinical aspects of Insomnia Treatment of insomnia is based upon the following principles: A. Insomnia is always a symptom of a larger psychiatric disorder B. Insomnia may lead to hypertension and diabetes C. Reduction of depressive symptoms can improve insomnia D. Sleep studies are always helpful in confirming the diagnosis of insomnia
Depression and sleep Polysomnographic features of depression seen in 50% of patients diagnosed with depression include: A. Abbreviated REM sleep onset B. Increased REM amounts C. Decreased slow wave sleep D. Increased sleep fragmentation and arousals E. Sleep studies are indicated in cases of suspected depression
Case of Mr. B Mr. B is a healthy 20 yo male whom you have been seeing in therapy for treatment of anxiety. According to his roommate, the patient has been waking up screaming, with severe sweating and difficulty to communicate with during these episodes. The patient had severe nightmares as a child. The events typically occur after missing his normal amount of sleep because of social events or studying for tests. Q: How would you treat these “nightmares”?
Events during sleep Nightmares Night terrors Panic attacks (nocturnal) REM behaviour disorder Sleep walking Nocturnal seizures CONSIDER: prior history, age, dreaming episode, time of occurrence, ability to console, autonomic arousability, and behaviours during episode.
Screening for Parasomnias 1. do you or your bed partner believe that you move your arms, legs, or body too much or have unusual behaviour during sleep? 2. do you move while dreaming as though you are attempting to carry out a dream? 3. have you ever hurt yourself or your partner while asleep? 4. do you eat or drink without full awareness during the night? 5. review medication(hypnotic) list/alcohol intake
Events during the night Fuseli’s
Nightmares vs Night terrors Nightmares REM related Last 1/3 of night Scared Little movement Remember dream Consolable Delayed back to sleep Night terrors Non REM related First half of night Confused Active Amnesia in morning Not consolable Easy back to sleep
Nightmares REM related events Last third of the night Vivid dreams Dreams are remembered Autonomic hyperarousability- mild No confusion or disorientation
Nightmares- cont’d Treatment to be directed for culprit- medications, withdrawal, sleep disorder, sleep deprivation No harm results from awakenings- Reassurance Imagery rehearsal treatment Prazosin in cases of PTSD related n/m Tryptophan?
Night terrors Occur out of SWS ( N3 )* First half of the night Positive hx of sleep walking Behaviour is stereotypical Extreme autonomic discharge Difficult to console Potential self harm/ harm to others »* in children out of N1/N2
Night terrors- cont’d May be triggered by: febrile illness, alcohol, sleep deprivation, stress. Medications can induce such events- hypnotics/neuroleptics/stimulants/anti-histamines and antiarrhythmic meds R/O brain insult, brain glioma, epilepsy, cardiac insufficiency.
Night terrors- cont’d Treatment of NREM Parasomnia Education and reassurance Safety precautions- if sleep walking BDZ/ TCA Relaxation Hypnosis
Unusual dreams A 66 yo male who you see for depression presented to your office with bruises to his hands and feet after falling off the bed few days earlier. He recalls having a dream where he had to defend himself from a snake. On further inquiry he indicated that his wife has been scared to sleep with him in the same bed due to his excessive movements at night. His sleep record epoch shows the following:
A 66 yo male who you see for depression presented to your office with bruises to his hands and feet after falling off the bed few days earlier. He recalls having a dream where he had to defend himself from a snake. On further inquiry he indicated that his wife has been scared to sleep with him in the same bed due to his excessive movements at night.This man likely: A. Has loss of muscle atonia during his REM sleep B. Has REM sleep behaviour disorder (RBD) C. Would benefit from an SSRI D. Will develop neuropathy with Guillain Barre-like illness E. Will benefit from Clonazepam
ONE LAST, VERY EFFECTIVE TREATMENT OPTION For apnea, RLS, Insomnia, parasomnias with com0rbid depression and anxiety is:
ONE LAST, VERY EFFECTIVE TREATMENT OPTION
EXTRAs If we have time we can cover: Excessive Daytime Sleepiness
Excessive Daytime Sleepiness
The "switch" for sleep is considered to be the ventrolateral preoptic nucleus (VLPO) of the anterior hypothalamus. VLPO uses GABA and galanin to initiate sleep by inhibiting the arousal regions of the brain. VLPO inhibits the wake-promoting regions of the brain including the tuberomammillary nucleus, lateral hypothalamus, locus coeruleus, dorsal raphe, laterodorsal tegmental nucleus, and pedunculopontine tegmental nucleus. Hypocretin (orexin) neurons in the lateral hypothalamus help to stabilize this switch Sleepy!
EDS A 45 yo female has been referred to a sleep clinic for assessment of day time sleepiness and fatigue. How do you differentiate between EDS and fatigue? Is there a role for a sleep study? MSLT? MWT? What are the causes for EDS?
Final question Of the following which is the most specific finding in a patient who is known to have narcolepsy? A. MSLT with average sleep onset of 6 minutes B. Improvement of EDS when drinking coffee C. Sleep paralysis D. Hypnagogic Hallucinations E. Cataplexy
Bibliography An update on the dopaminergic treatment of restless legs syndrome and periodic limb movement disorder. Sleep 2004:27(3): Brower KJ. Alcohol’s effects on sleep in alcoholics. Alcohol Research and Health 2001;25(2): Kushida CA,Littner MR,Hirshkowitz M etal. Practice parameters for the use of continuous and bilevel positive airway pressure devices to treat adult patients with sleep related breathing disorders. Sleep 2006:29(3): Morgenthaler T,Kapen S,Lee-Chiong T etal. Practice parameters for the medical therapy of obstructive sleep apnea. Sleep 2006;29(8): Morin CM,Bootzin RR,Buysse DJ etal. Psychological and behavioural treatment of insomnia. Update of the recent evidence. Sleep 2006;29(11): Neubauer DN. The evolution and development of insomnia pharmacotherapies. JCSM 2007;3(5): S11-S15 Peterson MJ and Benca RM. Sleep in mood disorders. Psychiatr Clin N 2006;29: Roth T. Insomnia: Definition, prevalence, etiology, and consequences. JCSM 2007;3(5): S7- S10 Schenck C, Mahowald M. Parasomnias. Post Med 2000;107(3): Silber MH. Chronic insomnia. NEJM. 2005;353:803-10
85 Fun Websites The sleep IQ test: Sleep meditation quilt square: A couple of simple things to remember and a cool site. t/Water_files/water14_help_with_sleep/help_with_sleep.html t/Water_files/water14_help_with_sleep/help_with_sleep.html Practice parameters for treating chronic primary insomnia in the elderly. Nat’l. Guideline Clearinghouse;
QUESTIONS If you have any questions I could be reached at the following address: Raed Hawa MD FRCPC DABPN DABSM Associate Professor, Department of Psychiatry Deputy Psychiatrist in Chief, University Health Network Deputy Clerkship Director, UME, University of Toronto Director, Undergraduate Psychiatry Program, UME, University of Toronto
Agomelatine and Sleep Kasper et al. J Clin Psychiatry 2010:71: Double-blind, randomized, controlled clinical trial of agomelatine mg/d (n=154) vs. sertraline mg/d (n=159) over 6 weeks A A SLEEP EFFICIENCY Sleep Efficiency (%) Week Agomelatine Sertaline P value–< < Agomelatine n Sertraline n B B SLEEP LATENCY Agomelatine Sertaline Week P value–< Agomelatine n Sertraline n
Efficacy of Adjunctive Modafinil In Partial Responders To SSRIs With Persistent Fatigue & Sleepiness Other significant improvements for adjunctive modafinil vs. placebo: ↑ CGI-I scores ↓ fatigue Fava et al. J Clin Psychiatry 2005:66: Double-blind, randomized, placebo-controlled clinical trial of 60 depressed, insomniac outpatients receiving open-label fluoxetine plus add-on eszopiclone 3 mg or placebo at bedtime for 8 weeks. CGI-I: Clinical Global Impression – Improvement. *P=0.07; † p=0.06; ‡p<0.08. ModafinilPlacebo Mean = SEM HAM-D-17 Score * † ‡ Week 1 Week 2 Week 4 Week 6 Week 6 Final Visit a Baseline
Quetiapine XR: Significant Effect On Sleep In Patients With MDD Weisler et al. Int Clin Psychopharmacol 2012; 27: Pooled analysis of two 8 week †, RCTs of quetiapine XR in patients with MDD (n=968) *p<0.001; †6 week randomization phase, 2 week discontinuation phase; results shown are at week 6. PSQI: Pittsburg Sleep Quality Index.