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Sleep Disorders

Richard Kalima Mwape, David Mulenga
Background . Good sleep quality is cardinal to good health, and research has shown that it plays a fundamental role in immunity, learning, metabolism, and other biological functions. Energy drink consumption is a popular practice among college students in the United States. There has been little research done on the consumption of energy drinks and its effects in Zambian universities. The main objective was to determine the effects of energy drinks on sleep quality among students at the Copperbelt University School of Medicine...
2019: Sleep Disorders
George Calcaianu, Didier Bresson, Mihaela Calcaianu, Beatrice Morisset, Tarek El-Nazer, Clara Deodati, Edouard Virot, Daniela Holtea, Carmen Iamandi, Didier Debieuvre
Background: Obstructive sleep apnea (OSA) is a potential cardiovascular risk factor. However, there is currently no prominent screening strategy for its diagnosis in patients with acute coronary syndrome (ACS). The aim of this study was to establish the impact of apneic events in case of OSA associated with ACS. Methods: Between January 1st and June 30th, fifty-three subjects with ACS (first acute myocardial infarction) were prospectively evaluated for OSA. Each patient was evaluated by polysomnography (PSG) two months after the ACS...
2019: Sleep Disorders
G Marrugo Pardo, L F Romero Moreno, P Beltrán Erazo, C Villalobos Aguirre
Objective: To determine the prevalence of respiratory complications in the early postoperative period of children with sleep apnea who required adenotonsillectomy at a tertiary pediatric hospital and to establish recommendations for postoperative monitoring. Methods: Retrospective cohort study of children with obstructive sleep apnea (OSA) diagnosed by polysomnogram (PSG), who underwent adenotonsillectomy for treatment of OSA. The prevalence of respiratory complications in the first 24 postoperative hours was measured...
2018: Sleep Disorders
Jeff A Dennis, Ahmad Alazzeh, Ann Marie Kumfer, Rebecca McDonald-Thomas, Alan N Peiris
Background/Objective: Sleep apnea is associated with elevated inflammatory markers. A subgroup of patients never report sleep disturbances to their physician. The inflammatory status of this subgroup is not known. The present study aims to evaluate two inflammatory markers, C-reactive protein (CRP) and red cell distribution width (RDW), in those with unreported sleep disturbances and compares these findings to those with and without reported sleep disorders. We also investigate the utility of RDW as an inflammatory marker in sleep disorders...
2018: Sleep Disorders
Jun Miura, Tomonori Yuasa, Yasunori Sugai, Kana Yamagami, Yoshihisa Aizu
Bright light therapy is a treatment modality for seasonal affective disorder and circadian rhythm disorders in which artificial light of 2,500 lux or higher at the eye is effective. Although short-wavelength visible light is more effective than long-wavelength visible light, it may be hazardous to the retina. Recently, light-emitting diodes (LEDs) have been used as the light source in bright light therapy apparatuses. We developed goggles for bright light therapy equipped with LEDs as the light source. The aim of this study was to examine the efficacy and safety of our goggles when emitting 10,000-lux light with its short-wavelength light content reduced by 30% or 50% (denoted as 30%-cut and 50%-cut light, respectively, henceforth)...
2018: Sleep Disorders
R Constance Wiener, Alcinda K Trickett Shockey, Christopher Waters
Objective: Sleep is restorative, essential, and beneficial to health. Prevalences of some diseases have been associated with sleep duration. There are few studies in the literature on the relationship of sleep duration and arthritis stratified by sex in older adults. The purpose of this research is to investigate sleep duration among older adults in the United States who have self-reported diagnosis of arthritis. Methods: A cross-sectional study design was used...
2018: Sleep Disorders
Laurie Nizet, Xavier Montana, Jean-Pol Lanquart, Gwenolé Loas
Anhedonia stands as a core symptom and potential trait marker of major depressive disorder (MDD). The importance of rapid eye movement sleep latency (REML) as a biological marker of depression has previously and repeatedly been studied. The aim of this paper is to analyse the relationship between anhedonia and REML in moderately to severely depressed patients. The shortened Beck Depression Inventory (BDI-13) was chosen to assess depressive symptoms and, among them, more particularly, anhedonic symptoms. Two-way ANCOVA was used for statistical analyses...
2018: Sleep Disorders
Asmaa M Abumuamar, Paul Dorian, David Newman, Colin M Shapiro
Introduction: Obstructive sleep apnea (OSA) is common and usually underdetected in patients with cardiac arrhythmia. Ambulatory sleep testing may provide an alternative method for detection of OSA under realistic conditions compared to in-laboratory polysomnography. We aimed to (1) determine the sleep architecture in arrhythmia patients; (2) detect differences in sleep parameters between patients with and without OSA; and (3) compare the results of two consecutive nights of unattended ambulatory sleep testing...
2018: Sleep Disorders
Selda Korkmaz, Nedime Tugce Bilecenoglu, Murat Aksu, Tahir Kurtulus Yoldas
Background: One of the main hypotheses on the development of daytime sleepiness (ES) is increased arousal in obstructive sleep apnea (OSA). Cyclic alternating pattern (CAP) is considered to be the main expression of sleep microstructure rather than arousal. Therefore, we aimed to investigate whether there is any difference between OSA patients with versus without ES in terms of the parameters of sleep macro- and microstructure and which variables are associated with Epworth Sleepiness Scale (ESS) score...
2018: Sleep Disorders
Jose Arturo Santisteban, Thomas G Brown, Reut Gruber
Chronotype refers to individuals' preferences for timing of sleep and wakefulness. It can be quantified by measuring the midpoint time between the start and end of sleep during free days. Measuring chronotype is helpful to diagnose circadian rhythm sleep-wake disorders. The Munich Chronotype Questionnaire (MCTQ) is a self-reported measure of chronotype that calculates the midpoint of sleep on free days based on self-reported bed and wake times. Self-reports of sleep are prone to bias. The objective was to examine the agreement between the MCTQ-derived midpoint and an objective measure obtained using wrist actigraphy...
2018: Sleep Disorders
Oluremi A Famodu, Makenzie L Barr, Ida Holásková, Wenjun Zhou, Jesse S Morrell, Sarah E Colby, Melissa D Olfert
Objective/Introduction: Lengthy surveys have the potential to burden users and can lead to inaccuracies. Conducting analyses to shorten existing validated surveys is beneficial. The objective, therefore, was to shorten the Pittsburgh Quality Sleep Index (PSQI) for young adults. Methods: PSQI data from 1246 college students were used. An exploratory factor analysis (FA) was utilized to shorten survey after dropping select items. Nonparametric correlation analysis (Spearman's rho) was conducted between the global sleep scores of the shortened and original surveys...
2018: Sleep Disorders
Hiwot Berhanu, Andualem Mossie, Samuel Tadesse, Daniel Geleta
Background: An estimated 150 million people worldwide and nearly 17% of the populations in the developing nations are currently suffering from sleep problems. The aim of the present study was to determine the prevalence and associated factors of sleep quality among adults in Ethiopia. Method: A cross-sectional study was conducted on 422 randomly selected adults using validated and pretested Pittsburgh Sleep Quality Index. Data were entered into EpiData and analyzed using SPSS version 20 considering bivariable ( P value < 0...
2018: Sleep Disorders
Richard K Bogan, Charles Wells
Objectives/Background: Improving adherence to CPAP devices is crucial to reduce the long-term morbidity associated with OSA. SensAwake is a unique pressure relief technology that aims to promptly reduce the pressure upon sensing irregular respiration indicative of wakefulness. The purpose of this study was to compare adherence and sleep-quality outcomes in patients treated by CPAP with and without SensAwake technology. Methods: Participants with moderate-to-severe OSA were randomized to use CPAP devices with or without SensAwake (4 weeks) before crossing over...
2017: Sleep Disorders
Laura Creti, Eva Libman, Dorrie Rizzo, Catherine S Fichten, Sally Bailes, Dieu-Ly Tran, Phyllis Zelkowitz
Goals for the present study were to (a) describe the sleep of healthy new mothers over a 6-month postpartum period, (b) examine how sleep quality relates to daytime levels of fatigue and sleepiness, and (c) evaluate the relationship between mothers' and infants' sleep parameters. The sample consisted of 37 healthy, partnered, first-time mothers who had experienced full-term vaginal birth and had a healthy infant. We investigated infants' sleep parameters and mothers' sleep, mood, and daytime functioning 2 and 6 months postpartum...
2017: Sleep Disorders
Ram Jagannathan, Azizi Seixas, David St-Jules, Lakshmanan Jagannathan, April Rogers, Lu Hu, Girardin Jean-Louis, Mary Ann Sevick
RATIONALE: Overall validity of existing genetic biomarkers in the diagnosis of obstructive sleep apnea (OSA) remains unclear. The objective of this systematic genetic study is to identify "novel" biomarkers for OSA using systems biology approach. METHODS: Candidate genes for OSA were extracted from PubMed, MEDLINE, and Embase search engines and DisGeNET database. The gene ontology (GO) analyses and candidate genes prioritization were performed using Enrichr tool...
2017: Sleep Disorders
Hiroshi Ueda, Yu Matsumura, Atsushi Horihata, Cynthia Concepcion, Koji Iwai, Kotaro Tanimoto
Introduction. This study aimed to evaluate the influence of oral appliances (OAs) on dentition using a strain gauge analysis. Materials/Methods. Eight volunteers, who were mild snorers, participated in this study. OAs were individually constructed, and advancement was defined as two-thirds of the maximum mandibular advancement. Strain gauges were mounted on the right first molar and central incisor of both the upper and lower arches. After OA use, two measurement sessions (short- and long-term) were performed...
2017: Sleep Disorders
Henning Johannes Drews, Sebastian Wallot, Sara Lena Weinhold, Panagiotis Mitkidis, Paul Christian Baier, Andreas Roepstorff, Robert Göder
The present study aimed to explore dynamic and interactive aspects of cosleep in heterosexual couples. The sample consisted of eight young healthy adults who belonged to four heterosexual couples with a good relationship quality and a history of cosleeping. All individuals underwent simultaneous polysomnography in a sleep laboratory for four nights in which they slept individually and with their partner. Also, a sleep protocol of subjective sleep measures was completed. Statistical analyses included cross recurrence quantification analysis to assess synchronization during sleep...
2017: Sleep Disorders
E Libman, S Bailes, C S Fichten, D Rizzo, L Creti, M Baltzan, R Grad, A Pavilanis, D-L Tran, K Conrod, R Amsel
Untreated obstructive sleep apnea (OSA) has numerous negative health-related consequences. Continuous positive airway pressure (CPAP) is generally considered the treatment of choice for OSA, but rates of nonadherence are high. It is believed that OSA is more prevalent among men; therefore understanding how OSA presents among women is limited and treatment adherence has received little research attention. For this study, 29 women were recruited from primary care offices. They completed a questionnaire battery and underwent a night of nocturnal polysomnography (PSG) followed by a visit with a sleep specialist...
2017: Sleep Disorders
Tiia Saunamäki, Eero Huupponen, Juho Loponen, Sari-Leena Himanen
Objective. Obstructive sleep apnea (OSA) decreases sleep spindle density and frequency. We evaluated the effects of continuous positive airway pressure (CPAP) treatment on different features of sleep spindles. Methods. Twenty OSA patients underwent two night polysomnographies in a diagnostic phase and one night polysomnography after 6 months of CPAP treatment. The control group comprised 20 healthy controls. Sleep spindles were analyzed by a previously developed automated method. Unilateral and bilateral spindles were identified in central and frontopolar brain locations...
2017: Sleep Disorders
Philipp S Ritter, Cathrin Sauer, Steffi Pfeiffer, Michael Bauer, Andrea Pfennig
Background . Several studies have described but not formally tested discrepancies between subjective and objective measures of sleep. Study Objectives . To test the hypothesis that patients with bipolar disorder display a systematic bias to underestimate sleep duration and overestimate sleep latency. Methods . Actimetry was used to assess sleep latency and duration in 49 euthymic participants (bipolar = 21; healthy controls = 28) for 5-7 days. Participants simultaneously recorded estimated sleep duration and sleep latency on a daily basis via an online sleep diary...
2016: Sleep Disorders
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