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Sleep Medicine

Rie Miyata, Masaharu Hayashi, Jun Kohyama, Makoto Honda
No abstract text is available yet for this article.
September 29, 2016: Sleep Medicine
Jitka Bušková, Veronika Ibarburu, Karel Šonka, Evžen Růžička
No abstract text is available yet for this article.
September 12, 2016: Sleep Medicine
Giuseppe Lanza, Cornelius G Bachmann, Imad Ghorayeb, Yuping Wang, Raffale Ferri, Walter Paulus
Neurophysiological techniques have been applied in restless legs syndrome (RLS) to obtain direct and indirect measures of central and peripheral nervous system excitability, as well as to probe different neurotransmission pathways. Data converge on the hypothesis that, from a pure electrophysiological perspective, RLS should be regarded as a complex sensorimotor disorder in which cortical, subcortical, spinal cord, and peripheral nerve generators are all involved in a network disorder, resulting in an enhanced excitability and/or decreased inhibition...
August 27, 2016: Sleep Medicine
Osamu Itani, Maki Jike, Norio Watanabe, Yoshitaka Kaneita
OBJECTIVE: The dose-response of short sleep duration in mortality has been studied, in addition to the incidences of notable health complications and diseases such as diabetes mellitus, hypertension, cardiovascular diseases, stroke, coronary heart diseases, obesity, depression, and dyslipidemia. METHODS: We collected data from prospective cohort studies with follow-ups of one year or more on associations between short sleep duration and the outcomes. For the independent variable, we divided participants at baseline into short sleepers and normal sleepers...
August 26, 2016: Sleep Medicine
Petra Kovalská, David Kemlink, Soňa Nevšímalová, Eszter Maurovich Horvat, Eva Jarolímová, Eva Topinková, Karel Šonka
OBJECTIVE: Narcolepsy with cataplexy (NC) is a chronic disabling disease; however, there are insufficient data on older NC subjects. METHODS: A cross-sectional evaluation on health and social status, including intensity and progression of NC symptoms, was performed on 42 NC patients (age 71.9 years ± 7.5) and 46 age-and-sex-matched controls (age 72.2 years ± 7.0). RESULTS: A greater proportion of patients than controls suffered from hypertension and type 2 diabetes...
August 24, 2016: Sleep Medicine
Katerina Westlake, Andrea Plihalova, Martin Pretl, Zuzana Lattova, Jan Polak
BACKGROUND: Obstructive sleep apnea (OSA) is highly prevalent in patients with Type 2 diabetes mellitus representing an additional risk factor for already increased cardiovascular mortality. As cardiovascular diseases are the main cause of death in this population, there is a need to identify patients with moderate to severe OSA indicated for treatment. We aimed to evaluate the performance of the Berlin, STOP, and STOP-Bang screening questionnaires in a population of patients with Type 2 diabetes mellitus...
August 24, 2016: Sleep Medicine
Ronald B Postuma, Jacques Y Montplaisir
No abstract text is available yet for this article.
July 25, 2016: Sleep Medicine
Panagis Drakatos, Sean Higgins, Iain Duncan, Sara Stevens, Sakina Dastagir, Adam Birdseye, Dimosthenis Lykouras, Rexford Muza, Nadia Gildeh, Ivana Rosenzweig, Adrian J Williams, Guy D Leschziner, Brian D Kent
OBJECTIVES: Catathrenia is an uncommon and poorly understood disorder, characterized by groaning during sleep occurring in tandem with prolonged expiration. Its classification, pathogenesis, and clinical relevance remain debated, substantially due to the limited number of cases reported to date. We report a series of consecutive cases of catathrenia, their clinical and polysomnographic characteristics, and their subsequent management. METHODS: Consecutive patients with catathrenia who had undergone full polysomnography in our institution over a 5...
July 20, 2016: Sleep Medicine
Daniel L Picchietti, Stephen K Van Den Eeden, Yuichi Inoue, Klaus Berger
In the 20 years since the initial consensus on a common definition for restless legs syndrome (RLS), over 600 scientific reports on epidemiological aspects of RLS have been published. Most are descriptive and address important issues such as prevalence, familial patterns, comorbidities, and quality of life. While the establishment of prospective cohort studies and the use of secondary data sources are rather new to RLS research, both options significantly broaden the possibilities for analysis of disease risk factors...
July 12, 2016: Sleep Medicine
Prachi Singh, Virend K Somers
No abstract text is available yet for this article.
July 11, 2016: Sleep Medicine
Jaime M Monti
Sleep disturbances predominantly take the form of insomnia in patients with unipolar disorder, while patients with bipolar disorder show a decreased need for sleep. Sleep impairment in these patients is a risk factor for the development of a major depressive episode and suicidal behavior. Administration of second-generation antipsychotics (SGAs) olanzapine, quetiapine, and ziprasidone as augmentation therapy or monotherapy to unipolar and bipolar disorder patients, respectively, has been shown to improve sleep continuity and sleep architecture...
July 2016: Sleep Medicine
Antônio Augusto Schäfer, Marlos Rodrigues Domingues, Darren Lawrence Dahly, Fernanda Oliveira Meller, Helen Gonçalves, Fernando César Wehrmeister, Maria Cecília Formoso Assunção
OBJECTIVE: To investigate factors associated with sleep duration in adolescence. METHODS: Data are from the 1993 Pelotas Birth Cohort Study of 5249 live births. Of these individuals, 4563 were located for follow-up at 18 years of age, and 4106 agreed to be interviewed (follow-up rate 81.3%). Sleep duration was continuously assessed by survey as hours per weekday. Additional covariates were collected during the perinatal period and at the 11- and 18-year follow-ups...
July 2016: Sleep Medicine
Elizabeth E Devore, Stephanie L Harrison, Katie L Stone, Kathleen F Holton, Elizabeth Barrett-Connor, Sonia Ancoli-Israel, Kristine Yaffe, Kristine Ensrud, Peggy M Cawthon, Susan Redline, Eric Orwoll, Eva S Schernhammer
BACKGROUND: Circadian disruptions can contribute to accelerated aging, and the circadian system regulates cognitive and physical functions; therefore, circadian markers (eg, melatonin) may be associated with key aspects of healthy aging and longevity. OBJECTIVE: To evaluate urinary melatonin levels in relation to cognitive function, physical function, and mortality among 2,821 older men in the Osteoporotic Fractures in Men Study DESIGN: Cohort study. MEASUREMENTS: In 2003-2005, participants provided first-morning spot urine samples, which were assayed for 6-sulfatoxymelatonin (the primary melatonin metabolite in urine); cognitive and physical function assessments were completed twice, at baseline and an average of 6...
July 2016: Sleep Medicine
Bojan Gavrilovic, T Douglas Bradley, Daniel Vena, Owen D Lyons, Joseph M Gabriel, Milos R Popovic, Azadeh Yadollahi
OBJECTIVES: Obstructive sleep apnea (OSA) is highly prevalent in patients with fluid-retaining conditions. Using bioimpedance measurements, previous studies have shown that the greater the amount of fluid redistributed from the legs to the neck overnight, the greater the severity of OSA. Our objective was to investigate factors that predispose the development or worsening of OSA in response to experimental fluid overload. METHODS: Fifteen normotensive and non-obese adult men with and without OSA underwent polysomnography (PSG) during which normal saline was infused intravenously at a minimal rate to keep the vein open (control) or as a bolus of 22 ml/kg body weight (approximately 2 L) in a random order and crossed over after a week...
July 2016: Sleep Medicine
Jeonghun Ku, Yeong Seon Lee, HyukWon Chang, Christopher J Earley, Richard P Allen, Yong Won Cho
BACKGROUND: The unusual sensations of restless legs syndrome/Willis-Ekbom disease (RLS/WED) are induced by rest or a low arousal state with a circadian variation in the threshold for induction. It has been suggested that the emergence of RLS/WED symptoms relates to abnormal brain functions dealing with internally generated stimuli. The purpose of this study was to investigate the changes in the default mode network (DMN) in RLS/WED subjects. METHODS: Sixteen drug-naïve, idiopathic, RLS/WED subjects, and 16 age-matched and gender-matched healthy subjects were scanned in an asymptomatic resting state...
July 2016: Sleep Medicine
Shery Goril, Dora Zalai, Louise Scott, Colin M Shapiro
OBJECTIVES: Caregivers describe significant sleep disturbances in the vast majority of children and adolescents, which is diagnosed as fetal alcohol spectrum disorders (FASD), but objective data on sleep disorders in this population are almost completely lacking. Animal models suggest that intrauterine alcohol exposure may disrupt sleep wake patterns, cause sleep fragmentation, and specifically affect the suprachiasmatic nucleus, thus disrupting melatonin secretion. The objective of this pioneering study was to evaluate sleep and melatonin abnormalities in children with FASD using objective, gold-standard measures...
July 2016: Sleep Medicine
Ni Jian, Douglas M Teti
Infant sleep consolidates rapidly during the first half year of life in the context of a dynamic, bidirectional exchange between infant characteristics and the caregiving environment. The current study examined the relationship between mothers' emotional availability (EA) at bedtime and infant temperament, and objectively assessing infant sleep development from one to six months, particularly focus on whether infant temperament moderated linkages between EA at bedtime and infant sleep development. The sample consisted of 72 mother-infant dyads, and the measures included actigraphy-assessed infant sleep at one and six months, observed maternal EA coded from bedtime videos at 3 and 6 months, and maternal reports of infant temperament at three and six months...
July 2016: Sleep Medicine
Nuria Matos, Alex Iranzo, Carles Gaig, Joan Santamaria
No abstract text is available yet for this article.
July 2016: Sleep Medicine
Sirimon Reutrakul, Ammarin Thakkinstian, Thunyarat Anothaisintawee, Sasipas Chontong, Anne-Laure Borel, Michelle M Perfect, Carolina Castro Porto Silva Janovsky, Romain Kessler, Bernd Schultes, Igor Alexander Harsch, Marieke van Dijk, Didier Bouhassira, Bartlomiej Matejko, Rebecca B Lipton, Parawee Suwannalai, Naricha Chirakalwasan, Anne-Katrin Schober, Kristen L Knutson
OBJECTIVES: The association between inadequate sleep and type 2 diabetes has garnered much attention, but little is known about sleep and type 1 diabetes (T1D). Our objectives were to conduct a systematic review and meta-analysis comparing sleep in persons with and without T1D, and to explore relationships between sleep and glycemic control in T1D. METHODS: Studies were identified from Medline and Scopus. Studies reporting measures of sleep in T1D patients and controls, and/or associations between sleep and glycemic control, were selected...
July 2016: Sleep Medicine
Albino Petrone, Flaminio Mormile, Giacomo Bruni, Michela Quartieri, Maria R Bonsignore, Oreste Marrone
OBJECTIVE: In obstructive sleep apnea (OSA), while both hypothyroidism and hyperthyroidism have been studied, the occurrence of non-thyroidal illness syndrome (NTIS) (normal thyroid stimulating hormone [TSH] with low triiodotironine) has not been investigated. We explored the occurrence of NTIS in patients with moderate to severe OSA and its relationship to the severity of nocturnal respiratory disorders. We also studied the occurrence of subclinical hypothyroidism (SH, ie, high TSH with normal thyroxine) in OSA and changes in circulating TSH, free triiodotironine (fT3) and free thyroxine (fT4) after CPAP treatment...
July 2016: Sleep Medicine
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