Play Video
1
A Documentary on Sleep
A Documentary on Sleep
::2013/12/02::
Play Video
2
RE: Delayed Sleep Phase Syndrome
RE: Delayed Sleep Phase Syndrome
::2012/12/05::
Play Video
3
Sleep Disorders | Conditions and Treatments
Sleep Disorders | Conditions and Treatments
::2012/11/26::
Play Video
4
Polyphasic sleep
Polyphasic sleep
::2014/07/28::
Play Video
5
Polyphasic Sleep Patterns, Optimal for building muscle?
Polyphasic Sleep Patterns, Optimal for building muscle?
::2014/01/02::
Play Video
6
Children | Importance of Good Night Sleep
Children | Importance of Good Night Sleep
::2012/12/24::
Play Video
7
Trouble sleeping at night? Suffering shift work fatigue?
Trouble sleeping at night? Suffering shift work fatigue?
::2013/12/22::
Play Video
8
Why Does My Brain Sleep?
Why Does My Brain Sleep?
::2013/08/20::
Play Video
9
Melatonin 3mg - Gives You the Right Dosage of 99.5% Pure Melatonin - Control Circadian Rhythms
Melatonin 3mg - Gives You the Right Dosage of 99.5% Pure Melatonin - Control Circadian Rhythms
::2014/01/04::
Play Video
10
Vanda Pharmaceuticals Higher on Postive Drug Results
Vanda Pharmaceuticals Higher on Postive Drug Results
::2012/12/18::
Play Video
11
Learn English ESL Irregular Verbs Grammar Rap Song! StickStuckStuck with Fluency MC!
Learn English ESL Irregular Verbs Grammar Rap Song! StickStuckStuck with Fluency MC!
::2010/02/24::
Play Video
12
StickStuckStuck INSTRUMENTAL English ESL Irregular Verb Grammar Rap Song with Fluency MC!
StickStuckStuck INSTRUMENTAL English ESL Irregular Verb Grammar Rap Song with Fluency MC!
::2010/11/02::
Play Video
13
Oxysleep_MK_Long
Oxysleep_MK_Long
::2014/08/19::
Play Video
14
What is Atrial Fibrillation or irregular heart beat?
What is Atrial Fibrillation or irregular heart beat?
::2012/08/20::
Play Video
15
Oxy Sleep Review - Sleep Peacefully Every Night With Oxysleep!.avi
Oxy Sleep Review - Sleep Peacefully Every Night With Oxysleep!.avi
::2012/12/21::
Play Video
16
REM Sleep Disorder - Identifying The Symptoms Of RBD Sleep Disorder
REM Sleep Disorder - Identifying The Symptoms Of RBD Sleep Disorder
::2013/08/14::
Play Video
17
Aajay Shah-WILX - Irregular Heartbeat
Aajay Shah-WILX - Irregular Heartbeat
::2012/06/20::
Play Video
18
Fast and irregular heartbeat
Fast and irregular heartbeat
::2011/11/18::
Play Video
19
Oxy sleep natural sleep aid, fall asleep fast, sleep solutions sleeping aid FREE bottle offer.flv
Oxy sleep natural sleep aid, fall asleep fast, sleep solutions sleeping aid FREE bottle offer.flv
::2011/11/06::
Play Video
20
Oxy Sleep Review Oxy sleep
Oxy Sleep Review Oxy sleep
::2013/01/24::
Play Video
21
Irregular heartbeat 11
Irregular heartbeat 11
::2013/08/26::
Play Video
22
How can I sleep better?
How can I sleep better?
::2014/04/18::
Play Video
23
A video about ablation for a irregular heart beat
A video about ablation for a irregular heart beat
::2010/06/04::
Play Video
24
sleep aid melatonin in Shreveport Louisiana
sleep aid melatonin in Shreveport Louisiana
::2013/09/11::
Play Video
25
sleep aid melatonin for Missoula Montana
sleep aid melatonin for Missoula Montana
::2013/09/13::
Play Video
26
Researchers Examine Effects of
Researchers Examine Effects of 'Social Jet Lag'
::2012/05/12::
Play Video
27
Pacemaker Implantation Surgery
Pacemaker Implantation Surgery
::2009/01/14::
Play Video
28
Stick
Stick 'em! The Fluency MC ESL Rap Song to Quickly Learn English Irregular Verbs
::2010/08/05::
Play Video
29
video ——Hygeia Bluetooth speaker Heart Rate Monitor / House-Service Detector Tester  /World First
video ——Hygeia Bluetooth speaker Heart Rate Monitor / House-Service Detector Tester /World First
::2014/07/29::
Play Video
30
Moving Back Into Your Heart- Jonas Brothers Love Story Chapter 25
Moving Back Into Your Heart- Jonas Brothers Love Story Chapter 25
::2008/12/04::
Play Video
31
Not Another Love Poem - Quelo
Not Another Love Poem - Quelo
::2010/09/04::
Play Video
32
The Artilleryman
The Artilleryman's Vision Walt Whitman - Poem
::2012/04/27::
Play Video
33
LASERS
LASERS 'COME OVER' LASERS ' IRREGULARCD10
::2013/06/04::
Play Video
34
Best Photos near Hastings, Barbados - Incl. What An Interesting Place, Isn
Best Photos near Hastings, Barbados - Incl. What An Interesting Place, Isn't It Lovely, Ahhh....
::2010/12/07::
Play Video
35
1hr Beta Binaural Beat Session (20hz) ~ Pure
1hr Beta Binaural Beat Session (20hz) ~ Pure
::2011/08/13::
Play Video
36
Turn your heartbeat up or down
Turn your heartbeat up or down
::2013/04/10::
Play Video
37
Are there birthing books that serve as alternatives to birthing classes?
Are there birthing books that serve as alternatives to birthing classes?
::2014/01/17::
Play Video
38
Online Yoga Teacher
Online Yoga Teacher's Training and Certification Program
::2014/04/15::
Play Video
39
Peter Xander - Heartbeat - episode 003
Peter Xander - Heartbeat - episode 003
::2012/10/26::
Play Video
40
Heart Beat
Heart Beat
::2014/03/22::
Play Video
41
Grotesque_hoovy_thinks_he_is_a_bloated_belching_pile_of_puke.Airbound-Mother.flocker
Grotesque_hoovy_thinks_he_is_a_bloated_belching_pile_of_puke.Airbound-Mother.flocker
::2013/06/20::
Play Video
42
MACKLEMORE X RYAN LEWIS - OTHERSIDE REMIX FEAT. FENCES [MUSIC VIDEO]
MACKLEMORE X RYAN LEWIS - OTHERSIDE REMIX FEAT. FENCES [MUSIC VIDEO]
::2011/08/31::
Play Video
43
Xenoblade OST - Inside the Giant - Carcass
Xenoblade OST - Inside the Giant - Carcass
::2010/06/28::
Play Video
44
heartbeat using headphones as a mic
heartbeat using headphones as a mic
::2011/12/16::
Play Video
45
Biventricular Devices Live - Avera Medical Minute
Biventricular Devices Live - Avera Medical Minute
::2009/01/29::
Play Video
46
Heartbeat
Heartbeat
::2011/08/18::
Play Video
47
REHAB
REHAB
::2013/04/15::
Play Video
48
Heartbeat Slowing Down
Heartbeat Slowing Down
::2012/10/19::
Play Video
49
Heartbeat
Heartbeat
::2009/03/30::
Play Video
50
Erratic Guitar Riffs n Video Effects
Erratic Guitar Riffs n Video Effects
::2013/09/05::
NEXT >>
RESULTS [51 .. 101]
From Wikipedia, the free encyclopedia
Jump to: navigation, search
Irregular Sleep Wake Rhythm Type
Classification and external resources
ICD-10 G47.23
ICD-9 327.33
MedlinePlus 000806
eMedicine neuro/655
MeSH D021081

Irregular sleep–wake rhythm is a rare form of circadian rhythm sleep disorder. It is characterized by numerous naps throughout the 24-hour period, no main nighttime sleep episode and irregularity from day to day.[1] Sufferers have no pattern of when they are awake or asleep, may have poor quality sleep, and often may be very sleepy while they are awake. The total time asleep per 24 hours is normal for the person's age.[2][3][4] The disorder is serious—an invisible disability. It can create social, familial, and work problems, making it hard for a person to maintain relationships and responsibilities, and may make a person home-bound and isolated.

Nomenclature[edit]

The current formally correct name of the disorder is Circadian Rhythm Sleep Disorder: Irregular Sleep Wake Rhythm Type.[5] This disorder has been referred to by many other terms, including: Irregular Sleep Wake Pattern,[6] irregular sleep wake syndrome,[7] Irregular Sleep Wake Rhythm,[8] Irregular Sleep Wake Cycle,[9] Irregular Sleep Wake Schedule[10] and Irregular Sleep Wake Disorder (ISWD).[4] Sometimes the words sleep and wake are hyphenated (sleep–wake). Sometimes the words are capitalized and sometimes they are not.

Causes[edit]

ISWD has various causes, including neurological disorders such as dementia (particularly Alzheimer's Disease), brain damage, or mental retardation.[7] It is thought that sufferers have a weak circadian clock.[3][4] The risk for the disorder increases with age, but only due to increased prevalence of co-morbid medical disorders.[7]

There is a possible reciprocal relationship between bipolar disorder and sleep disorders: "Irregular Sleep–Wake Schedule ... is yet another problem that many with Bipolar II experience and [it] in large part results from a lack of lifestyle scheduling."[10]

Diagnosis[edit]

A sleep diary with nighttime in the middle and the weekend in the middle, to better notice trends

A sleep diary should be kept to aid in diagnosis and for chronicling the sleep schedule during treatment. Other ways to monitor the sleep schedule are actigraphy[3][4] or use of a Continuous Positive Airway Pressure (CPAP) machine that can log sleeping times

The following are possible warning signs:

  • sleeping off and on in a series of naps during the day and at night, with no regular pattern but with normal total sleep time,
  • difficulty getting restorative sleep, and
  • excessive daytime sleepiness.[3][4]

Because of the changes in sleep/wake time, and because this is a rare disorder, initially it can seem like another circadian rhythm sleep disorder such as non-24-hour sleep–wake disorder or like insomnia.

Initial visit with sleep physician[edit]

A physician specializing in sleep medicine may ask patients about their medical history; for example: neurological problems, prescription or non-prescription medications taken, alcohol use, family history, and any other sleep problems. A thorough medical and neurological exam is indicated. The patient will be asked to complete a sleep diary, recording natural sleep and wake up times, over several weeks. Sleep rating with the Epworth Sleepiness Scale may be used.[3][4]

Medical testing[edit]

A neurological condition or another medical problem may be suspected, in which case, blood tests, a CT scan or an MRI may be used. An overnight sleep study is usually not needed to detect this disorder, but may be indicated if other sleep disorders, such as sleep apnea and periodic limb movement disorder, seem likely. The overnight sleep study is called polysomnography. It charts brain waves, heart beat, muscle activity, and breathing during sleep. It also records arm and leg movement. It will show if there are other sleep disorders that are causing or increasing the problems with ISWD.

Management[edit]

Treatment for irregular sleep–wake rhythm tries to enable the body clock in the brain, such that a normal long sleep period at night can be achieved. Education about sleep hygiene is important, and counseling can be helpful. Melatonin, vitamin B12, sleep aids, wake aids, and other medications may also be used.[3][4] Light during the daytime, and activities occurring at regular times each day, may help to restore a normal rhythm.[3][4]

Because there are different systems in the body that help establish regulation, it's helpful to employ a multi-modal approach. A 2008 review states that "...each clock is differentially sensitive to zeitgebers. The suprachiasmatic nucleus (SCN) is very responsive to light, the clock in the liver is very sensitive to food, and clocks in muscle are sensitive to exercise."[11]

Circadian rhythm labeled

The following approaches are recommended by one source:[12]

  1. Spend <7–8 hours in bed.
  2. Add environmental cues such as light and social interactions, regular meal times, and regular sleep–wake times.
  3. Morning and eve light at 3000 lux for 2 hours have been shown to improve nocturnal sleep in institutionalized patients and reduce agitation in demented patients.
  4. Melatonin at desired sleep time.

Research[edit]

There is currently a great deal of active research on various aspects of circadian rhythm; this often occurs at major universities in conjunction with sleep research clinics at major hospitals. An example is the program with Harvard Medical School and Brigham and Women's Hospital.[13] This research includes programs that are staffed by researchers from various departments at the university, including psychiatry, neurology, chemistry, biology. Other major sleep research centers are in Tel Aviv in Israel, Munich in Germany and in cities[vague] in Japan.[citation needed]

A wide variety of sleep disorders are actively being researched. Measuring body temperature or melatonin levels may be used. Some hospitals do blood tests for Melatonin levels. Melatonin saliva tests are now available for online purchase. It can also be tested in urine.[3][4]

See also[edit]

References[edit]

  1. ^ http://www.medlink.com (requires free trial or subscription) search on term: Irregular sleep–wake pattern
  2. ^ Usage of term "Irregular Sleep–Wake Cycle": http://www.emedicinehealth.com/sleeplessness_and_circadian_rhythm_disorder/article_em.htm
  3. ^ a b c d e f g h http://www.sleepeducation.com/Disorder.aspx?id=60 [Handbook of Sleep Disorders By Clete A. Kushida accessed online Aug. 11, 2010] /
  4. ^ a b c d e f g h i Sack RL, Auckley D, Auger RR, et al. (2007). "Circadian rhythm sleep disorders: part II, advanced sleep phase disorder, delayed sleep phase disorder, free-running disorder, and irregular sleep–wake rhythm. An American Academy of Sleep Medicine review" (PDF: full text). Sleep 30 (11): 1484–501. PMC 2082099. PMID 18041481. 
  5. ^ Zee, Phyllis C.; Michael V. Vitiello (June 2009). "Circadian Rhythm Sleep Disorder: Irregular Sleep Wake Rhythm Type". Sleep Med Clin (NIH Public Access) 4 (2): 213–218. doi:10.1016/j.jsmc.2009.01.009. PMC 2768129. PMID 20160950. 
  6. ^ Dement, William C. (January 22, 1999). "Circadian Rhythm Information". Retrieved 2010-10-07. 
  7. ^ a b c "Irregular sleep wake syndrome". National Center for Biotechnology Information, U.S. National Library of Medicine. Reviewed 5/9/2010. Retrieved 2010-10-07. 
  8. ^ "Irregular Sleep Wake Rhythm". American Sleep Association. Reviewed September 2007. Retrieved 2010. 
  9. ^ "Sleeplessness and Circadian Rhythm Disorder". WebMDnewsletter. Retrieved 2010-10-07. 
  10. ^ a b Fieve, Ronald R. Bipolar Disorder and Sleep http://www.athealth.com/consumer/disorders/bipolarandsleep.html
  11. ^ Harvey, Allison G. (July 2008). "Sleep and Circadian Rhythms in Bipolar Disorder: Seeking Synchrony, Harmony, and Regulation". The American Journal of Psychiatry 165 (7): 824. doi:10.1176/appi.ajp.2008.08010098. "For the latter, each clock is differentially sensitive to zeitgebers. The SCN is very responsive to light, the clock in the liver is very sensitive to food, and clocks in muscle are sensitive to exercise." 
  12. ^ From "Ultiimate review for the neurology boards..." by Hubert Fernandez (p243)
  13. ^ http://sleep.med.harvard.edu/people/faculty

External links[edit]

Blogs and mailings lists[edit]

Find medical professionals[edit]

Associations[edit]

Journals and research sites[edit]

Wikipedia content is licensed under the GFDL License
Powered by YouTube
LEGAL
  • Mashpedia © 2014