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Sleep Medicine Reviews

Anna Wirz-Justice, Miriam Frank
No abstract text is available yet for this article.
June 16, 2017: Sleep Medicine Reviews
Dan Denis, Christopher C French, Alice M Gregory
Sleep paralysis is a relatively common but under-researched phenomenon. While the causes are unknown, a number of studies have investigated potential risk factors. In this article, we conducted a systematic review on the available literature regarding variables associated with both the frequency and intensity of sleep paralysis episodes. A total of 42 studies met the inclusion criteria. For each study, sample size, study site, sex and age of participants, sleep paralysis measure, and results of analyses looking at the relationship(s) between sleep paralysis and associated variable(s) were extracted...
June 8, 2017: Sleep Medicine Reviews
Arie Oksenberg, Natan Gadoth
No abstract text is available yet for this article.
May 27, 2017: Sleep Medicine Reviews
Stephen P Becker, Craig A Sidol, Tori R Van Dyk, Jeffery N Epstein, Dean W Beebe
Substantial research attention has been devoted to understanding the importance and impact of sleep in children and adolescents. Traditionally, this has focused on mean sleep variables (e.g., a child's "typical" or average sleep duration), yet research increasingly suggests that intraindividual variability (IIV) of sleep/wake patterns (sometimes referred to as sleep variability or night-to-night variability) regularly occurs and may have implications for adjustment. A systematic search of five electronic databases identified 52 empirical studies published between 2000 and 2015 that examined correlates of sleep IIV in children and adolescents, with a recent increase in the publication rate of such studies...
August 2017: Sleep Medicine Reviews
Ari Shechter
Obesity and obstructive sleep apnea (OSA) have a reciprocal relationship. Sleep disruptions characteristic of OSA may promote behavioral, metabolic, and/or hormonal changes favoring weight gain and/or difficulty losing weight. The regulation of energy balance (EB), i.e., the relationship between energy intake (EI) and energy expenditure (EE), is complex and multi-factorial, involving food intake, hormonal regulation of hunger/satiety/appetite, and EE via metabolism and physical activity (PA). The current systematic review describes the literature on how OSA affects EB-related parameters...
August 2017: Sleep Medicine Reviews
Kirsty L Dodds, Christopher B Miller, Simon D Kyle, Nathaniel S Marshall, Christopher J Gordon
Heart rate variability (HRV) is an objective marker that provides insight into autonomic nervous system dynamics. There is conflicting evidence regarding the presence of HRV impairment in insomnia patients. Web-based databases were used to systematically search the literature for all studies that compared the HRV of insomnia patients to controls or reported the HRV of insomnia patients before and after an intervention. 22 relevant papers were identified. Study characteristics were summarised, HRV measures were extracted and a risk of bias assessment for each study was performed...
June 2017: Sleep Medicine Reviews
Franco De Crescenzo, Alexis Economou, Ann L Sharpley, Aynur Gormez, Digby J Quested
Sleep disruptions represent a core feature of bipolar disorders and have been widely studied through the use of actigraphy, which is an objective measure of motor activity and sleep. Finding objective outcomes, which reliably measure sleep in bipolar disorders, is essential in developing better therapies and improving follow-up monitoring strategies. Our aim is to understand the role of actigraphy as an objective measure of sleep in bipolar disorder. We undertook a systematic review and meta-analysis on studies using actigraphy to detect changes in activity and sleep patterns in bipolar patients versus healthy controls...
June 2017: Sleep Medicine Reviews
Roberto Manfredini, Fabio Fabbian
No abstract text is available yet for this article.
June 2017: Sleep Medicine Reviews
Charlotte Russell, Simon D Kyle, Alison J Wearden
Cognitive behavioural therapy (CBT) and graded exercise therapy (GET) are recommended evidence based treatments for chronic fatigue syndrome (CFS), with research supporting their effectiveness in reducing fatigue and functional impairment. However, little research has focussed on the effect of these treatments on sleep, despite high reported sleep disturbance in CFS. Using a narrative synthesis approach, we aimed to 1) systematically identify and summarise the current evidence for the effectiveness of CBT and GET in improving sleep; 2) consider factors influencing treatment effectiveness, including incorporation of sleep management techniques; and 3) consider the appropriateness of sleep outcome measures used within evaluations...
June 2017: Sleep Medicine Reviews
Sarah J Hall, Sally A Ferguson, Anne I Turner, Samuel J Robertson, Grace E Vincent, Brad Aisbett
On-call work is becoming an increasingly common work pattern, yet the human impacts of this type of work are not well established. Given the likelihood of calls to occur outside regular work hours, it is important to consider the potential impact of working on-call on stress physiology and sleep. The aims of this review were to collate and evaluate evidence on the effects of working on-call from home on stress physiology and sleep. A systematic search of Ebsco Host, Embase, Web of Science, Scopus and ScienceDirect was conducted...
June 2017: Sleep Medicine Reviews
Jaime M Monti, Pablo Torterolo, Seithikurippu R Pandi Perumal
Insomnia is a common feature in schizophrenia, and is characterized by an increase of sleep latency (SL), as well as reductions in total sleep time (TST) and sleep efficiency (SE). Regarding sleep architecture, non-rapid-eye-movement (NREM) sleep, slow wave sleep (SWS) and rapid-eye-movement (REM) sleep latency are decreased, whereas REM sleep tends to remain unchanged. According to polysomnographic studies, clozapine, olanzapine, quetiapine and ziprasidone administration increased TST and/or SE in healthy subjects...
June 2017: Sleep Medicine Reviews
Michael H Smolensky, Ramón C Hermida, Francesco Portaluppi
In most persons, blood pressure (BP) rises slowly during late sleep, increases rapidly upon morning awakening and commencement of diurnal activity, exhibits two - morning and afternoon/early evening - daytime peaks, shows a minor midday nadir, and undergoes a decline during nighttime sleep by 10-20% in systolic BP and somewhat lesser amount in diastolic BP relative to wake-time means. Nyctohemeral cycles of ambient temperature, light, noise and behaviorally driven temporal patterns in food, liquid, salt, and stimulant consumption, mental/emotional stress, posture, and physical activity intensity plus circadian rhythms of wake/sleep, pineal gland melatonin synthesis, autonomic and central nervous, hypothalamic-pituitary-adrenal, hypothalamic-pituitary-thyroid, renin-angiotensin-aldosterone, renal hemodynamic, endothelial, vasoactive peptide, and opioid systems constitute the key regulators and determinants of the BP 24 h profile...
June 2017: Sleep Medicine Reviews
Frank Raven, Eddy A Van der Zee, Peter Meerlo, Robbert Havekes
Dendritic spines are the major sites of synaptic transmission in the central nervous system. Alterations in the strength of synaptic connections directly affect the neuronal communication, which is crucial for brain function as well as the processing and storage of information. Sleep and sleep loss bidirectionally alter structural plasticity, by affecting spine numbers and morphology, which ultimately can affect the functional output of the brain in terms of alertness, cognition, and mood. Experimental data from studies in rodents suggest that sleep deprivation may impact structural plasticity in different ways...
May 18, 2017: Sleep Medicine Reviews
Emanuela Postiglione, Elena Antelmi, Fabio Pizza, Michel Lecendreux, Yves Dauvilliers, Giuseppe Plazzi
Narcolepsy type 1 is a life-long, severe, multifaceted disease often arising in childhood or adolescence. Beyond the classical symptoms (excessive daytime sleepiness, cataplexy, hallucinations, sleep paralysis and nocturnal fragmented sleep), metabolic, endocrinological, psychiatric and psychosocial aspects must be considered. Despite the increased awareness after H1N1 pandemic influenza and vaccination, narcolepsy is still misdiagnosed and unrecognized. The peculiar presentation of symptoms in narcoleptic children could in part explain the misdiagnoses...
May 8, 2017: Sleep Medicine Reviews
William V McCall
No abstract text is available yet for this article.
May 5, 2017: Sleep Medicine Reviews
David R Schreier, Christina Banks, Johannes Mathis
Road traffic injuries are projected to be the leading cause of death for those aged between 15 and 29 years by the year 2030, and sleepiness is estimated to be the underlying cause in up to 15-20% of all motor vehicle accidents. Sleepiness at the wheel is most often caused by socially induced sleep deprivation or poor sleep hygiene in otherwise healthy individuals, medical disorders, or the intake of drugs. Validated methods for objectifying sleepiness are urgently sought, particularly in the context of driving...
May 4, 2017: Sleep Medicine Reviews
Douglas M Wallace, Natasha J Williams, Amy M Sawyer, Girardin Jean-Louis, Mark S Aloia, Dorice L Vieira, William K Wohlgemuth
Minority individuals in the United States (US) have an increased prevalence of obstructive sleep apnea (OSA) compared to their white/Caucasian counterparts. In general, adherence to positive airway pressure (PAP) therapy is poor and some studies suggest that PAP use among minority individuals is inferior to that of whites. However, there has not been a review of the evidence that addresses racial-ethnic disparities for PAP adherence in the treatment of OSA, and no review has systematically examined the contributing factors to poor adherence among minority individuals compared to whites...
April 13, 2017: Sleep Medicine Reviews
Chamara V Senaratna, Jennifer L Perret, Melanie C Matheson, Caroline J Lodge, Adrian J Lowe, Raisa Cassim, Melissa A Russell, John A Burgess, Garun S Hamilton, Shyamali C Dharmage
We aimed to systematically review the Berlin questionnaire as a screening tool for obstructive sleep apnea. We systematically searched PubMed, Embase, and Scopus databases, reviewed articles reporting the Berlin questionnaire's diagnostic utility as measured against type-1 polysomnography, and performed meta-analyses where possible. Thirty five eligible articles showed that the Berlin questionnaire's diagnostic utility varied by study population, definition of hypopnea used, and apnea-hypopnea index threshold used...
April 8, 2017: Sleep Medicine Reviews
Alessandra Turrini, Alberto Raggi, Giovanna Calandra-Buonaura, Paolo Martinelli, Raffaele Ferri, Federica Provini
Restless legs syndrome (RLS) typically affects the limbs, but the involvement of other body parts has also been reported. In this essay, we critically review all literature reports of atypical RLS cases with unusual localizations. Applying the updated diagnostic criteria of the International restless legs syndrome study group (IRLSSG), which also consider symptoms localized outside of the lower limbs, a few of these atypical cases reported in the previous literature resulted in a definitive diagnosis of RLS...
April 4, 2017: Sleep Medicine Reviews
Valerie Yeung, Louise Sharpe, Nick Glozier, Maree L Hackett, Ben Colagiuri
This systematic review and meta-analysis aimed to determine the size of the placebo effect for insomnia symptoms when comparing placebo treatment with no treatment. PsycINFO, MEDLINE, and CINAHL databases were systematically searched for studies allocating participants with insomnia symptoms (diagnosed or self-reported) to receive a placebo that they were led to believe was an active treatment or to a no treatment control group. Thirteen independent studies (n = 566) met inclusion criteria. Meta-analysis indicated a reliable placebo effect whereby placebo treatment led to improved perceived sleep onset latency (SOL; Hedges g = 0...
April 3, 2017: Sleep Medicine Reviews
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