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https://www.readbyqxmd.com/read/28444396/circadian-impairment-of-distal-skin-temperature-rhythm-in-patients-with-sleep-disordered-breathing-the-effect-of-cpap
#1
Antonio Martinez-Nicolas, Marc Guaita, Joan Santamaría, Josep M Montserrat, María Ángeles Rol, Juan Antonio Madrid
Study objectives: Our aim was to evaluate the circadian rhythm of distal skin temperature (DST) in Sleep Disordered Breathing (SDB), its relation to excessive daytime sleepiness and the effect of continuous positive airway pressure (CPAP) on DST. Methods: Eighty SDB patients (53.1±1.2 years old, 27.6% women) and 67 healthy subjects (52.3±1.6 years old, 26.9% women) wore a temperature data logger for one week. On the last day of that week, SDB patients underwent a polysomnography followed by a Maintenance of Wakefulness Test (MWT), Multiple Sleep Latency Test (MSLT) and Sustained Attention to Response Task (SART) protocol to objectively quantify daytime sleepiness...
April 22, 2017: Sleep
https://www.readbyqxmd.com/read/28441852/-clinical-presentation-of-kleine-levin-syndrome
#2
Y Hu, J Y Wang, X S Dong, J Li, H Yan, P P Wang, L Zhao, X Z Zhang, F Han
Objective: To analyze the clinical features of Kleine-Levin syndrome (KLS) patients. Methods: Clinical data of 44 patients with KLS of the Sleep Center of Peking University People's Hospital from January 2002 to July 2013 were systematically reviewed. The predisposing factors and clinical presentations were summarized, and compared with the data from a Western KLS study with a large subjects number. Nocturnal polysomnography (PSG) and multiple sleep latency test (MSLT) were conducted during relapse and remission period, respectively...
April 25, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28419388/daytime-sleepiness-increases-with-age-in-early-adolescence-a-sleep-restriction-dose-response-study
#3
Ian G Campbell, Christopher S Burright, Amanda M Kraus, Kevin J Grimm, Irwin Feinberg
Study Objectives: Daytime sleepiness increases across adolescence. This increase is commonly attributed to insufficient sleep durations resulting from increasingly limited time in bed. We tested the effects of 3 sleep schedules on daytime sleepiness and whether these effects changed with age in early adolescence. Methods: In 77 children ranging in age from 9.9 to 14 years, objective (multiple sleep latency test - MSLT) and subjective (Karolinska sleepiness scale -KSS) sleepiness was measured following 4 consecutive nights of either 7, 8...
April 17, 2017: Sleep
https://www.readbyqxmd.com/read/28366327/underutilization-of-the-mslt-in-sleepy-patients-with-a-short-onset-rem-period-soremp-in-the-sleep-clinic
#4
Alyssa Cairns, Richard Bogan
OBJECTIVE/BACKGROUND: A nocturnal sleep onset REM period (defined as REM onset latency ≤ 15 min; SOREMP) occurs rarely and research has shown that the phenomenon is specific for type 1 and 2 narcolepsy. However, little is known about the meaningfulness of the phenotype in general sleep clinic patients because those that exhibit the phenomenon often present with few traditional narcolepsy symptoms. As such, this study aimed to (1) evaluate the rate of eventual MSLT testing for those with a SOREMP on routine PSG when the phenomenon occurred in the absence of potential explanatory factors and (2) quantify the stability of the SOREMP phenotype...
April 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28364485/objective-but-not-subjective-sleepiness-is-associated-with-inflammation-in-sleep-apnea
#5
Yun Li, Alexandros N Vgontzas, Julio Fernandez-Mendoza, Ilia Kritikou, Maria Basta, Slobodanka Pejovic, Jordan Gaines, Edward O Bixler
Study objectives: Objective and subjective measures of excessive daytime sleepiness (EDS) are only weakly associated. No study, however, has examined whether these two measures of EDS differ in terms of underlying mechanisms and prognostic value. Pro-inflammatory cytokines, that is, interleukin-6 (IL-6) appear to promote sleepiness/fatigue, while the stress hormone cortisol promotes vigilance. We hypothesized that objective sleepiness is associated with increased levels of IL-6 and decreased levels of cortisol...
February 1, 2017: Sleep
https://www.readbyqxmd.com/read/28364417/an-aggregate-measure-of-sleep-health-is-associated-with-prevalent-and-incident-clinically-significant-depression-symptoms-among-community-dwelling-older-women
#6
Ryuji Furihata, Martica H Hall, Katie L Stone, Sonia Ancoli-Israel, Stephen F Smagula, Jane A Cauley, Yoshitaka Kaneita, Makoto Uchiyama, Daniel J Buysse
Objectives: Sleep can be characterized along multiple dimensions. We investigated whether an aggregate measure of sleep health was associated with prevalent and incident clinically significant depression symptoms in a cohort of older women. Methods: Participants were older women (mean age 80.1 years) who completed baseline (n = 6485) and follow-up (n = 3806) visits, approximately 6 years apart, in the Study of Osteoporotic Fractures (SOF). Self-reported sleep over the past 12 months was categorized as "good" or "poor" across 5 dimensions: satisfaction with sleep duration, daytime sleepiness, mid-sleep time, sleep onset latency, and sleep duration...
March 1, 2017: Sleep
https://www.readbyqxmd.com/read/28355750/-association-between-subjective-and-objective-sleepiness-in-obstructive-sleep-apnea-hypopnea-syndrome-patients
#7
T M Li, R Ren, L Tan, F Lei, X D Tang
Objective: To examine the association between subjective sleepiness and objective sleepiness in Chinese obstructive sleep apnea hypopnea syndrome (OSAHS) patients. Methods: A total of 1 660 patients meeting the diagnostic criteria of OSAHS based on overnight polysomnography from West China Hospital, Sichuan University in the period from Jul 2010 to Jul 2014 were enrolled in the study. The Epworth Sleepiness Scale (ESS) and Multiple Sleep Latency Test (MSLT) were to evaluate subjective and objective sleepiness, respectively...
March 28, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28346153/national-sleep-foundation-s-sleep-quality-recommendations-first-report
#8
Maurice Ohayon, Emerson M Wickwire, Max Hirshkowitz, Steven M Albert, Alon Avidan, Frank J Daly, Yves Dauvilliers, Raffaele Ferri, Constance Fung, David Gozal, Nancy Hazen, Andrew Krystal, Kenneth Lichstein, Monica Mallampalli, Giuseppe Plazzi, Robert Rawding, Frank A Scheer, Virend Somers, Michael V Vitiello
OBJECTIVES: To provide evidence-based recommendations and guidance to the public regarding indicators of good sleep quality across the life-span. METHODS: The National Sleep Foundation assembled a panel of experts from the sleep community and representatives appointed by stakeholder organizations (Sleep Quality Consensus Panel). A systematic literature review identified 277 studies meeting inclusion criteria. Abstracts and full-text articles were provided to the panelists for review and discussion...
February 2017: Sleep Health
https://www.readbyqxmd.com/read/28326118/spectral-analysis-of-polysomnography-in-narcolepsy
#9
Seok Ho Yun, Ho Dong Choi, Wan Seok Seo
OBJECTIVE: This study was conducted to identify differences between people with narcolepsy and the normal control of delta and theta activity using electroencephalogram (EEG) spectrum analysis of nocturnal polysomnography (PSG). METHODS: Seven narcolepsy patients and seven age-sex matched normal controls underwent PSG and multiple sleep latency tests. Participants' non-rapid eye movement (NREM) sleep EEGs in PSG was analyzed using a Fast Fourier Transform technique...
March 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/28315606/video-ambulatory-eeg-a-good-alternative-to-inpatient-video-telemetry
#10
COMPARATIVE STUDY
Rosalind Kandler, Athi Ponnusamy, Claire Wragg
PURPOSE: Video ambulatory EEG (V-AEEG) is a new technique which could add increased capacity for long term EEG monitoring to overstretched inpatient video telemetry (IPVT) services. We compare V-AEEG and IPVT for diagnostic efficacy, recording quality, patient acceptability and technologist time required. METHODS: Forty-one V-AEEG and 64 IPVT adult patients were included. Patients were investigated to diagnose attacks or to obtain polysomnography (PSG) prior to multiple sleep latency test (MSLT)...
April 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28283102/the-association-between-physical-activity-and-sleep-characteristics-in-people-with-multiple-sclerosis
#11
Aseel Aburub, Hanan Khalil, Alham Al-Sharman, Mahmoud Alomari, Omar Khabour
STUDY OBJECTIVES: The majority of individuals with multiple sclerosis (MS) suffer from sleep disorders. In this study, we investigated the relationship between physical activity and sleep characteristics in MS patients. METHODS: Sixty MS patients were recruited in the study. Sleep characteristics were assessed using the Actisleep device while physical activity levels were assessed using mobility accelerometer. RESULTS: The results showed that means (±SD) of sleep latency (SL) and sleep efficiency (ES) for MS patients were 23...
February 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28276850/associations-between-period-3-gene-polymorphisms-and-sleep-chronotype-related-variables-in-patients-with-late-life-insomnia
#12
Hader A Mansour, Joel Wood, Kodavali V Chowdari, Divya Tumuluru, Mikhil Bamne, Timothy H Monk, Martica H Hall, Daniel J Buysse, Vishwajit L Nimgaonkar
A variable number tandem repeat polymorphism (VNTR) in the period 3 (PER3) gene has been associated with heritable sleep and circadian variables, including self-rated chronotypes, polysomnographic (PSG) variables, insomnia and circadian sleep-wake disorders. This report describes novel molecular and clinical analyses of PER3 VNTR polymorphisms to better define their functional consequences. As the PER3 VNTR is located in the exonic (protein coding) region of PER3, we initially investigated whether both alleles (variants) are transcribed into messenger RNA in human fibroblasts...
2017: Chronobiology International
https://www.readbyqxmd.com/read/28243864/hypersomnolence-hypersomnia-and-mood-disorders
#13
REVIEW
Lucie Barateau, Régis Lopez, Jean Arthur Micoulaud Franchi, Yves Dauvilliers
Relationships between symptoms of hypersomnolence, psychiatric disorders, and hypersomnia disorders (i.e., narcolepsy and idiopathic hypersomnia) are complex and multidirectional. Hypersomnolence is a common complaint across mood disorders; however, patients suffering from mood disorders and hypersomnolence rarely have objective daytime sleepiness, as assessed by the current gold standard test, the Multiple Sleep Latency Test. An iatrogenic origin of symptoms of hypersomnolence, and sleep apnea syndrome must be considered in a population of psychiatric patients, often overweight and treated with sedative drugs...
February 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/28123660/inter-device-reliability-of-an-automatic-scoring-actigraph-for-measuring-sleep-in-healthy-adults
#14
Matthew Driller, Joseph McQuillan, Shannon O'Donnell
Actigraphy has become a common method of measuring sleep due to its non-invasive, cost-effective nature. An actigraph (Readiband™) that utilizes automatic scoring algorithms has been used in the research, but is yet to be evaluated for its inter-device reliability. A total of 77 nights of sleep data from 11 healthy adult participants was collected while participants were concomitantly wearing two Readiband™ actigraphs attached together (ACT1 and ACT2). Sleep indices including total sleep time (TST), sleep latency (SL), sleep efficiency (SE%), wake after sleep onset (WASO), total time in bed (TTB), wake episodes per night (WE), sleep onset variance (SOV) and wake variance (WV) were assessed between the two devices using mean differences, 95% levels of agreement, intraclass correlation coefficients (ICC), typical error of measurement (TEM) and coefficient of variation (CV%) analysis...
July 2016: Sleep Science
https://www.readbyqxmd.com/read/28123336/narcolepsy-and-cataplexy-a-pediatric-case-report
#15
Tülin Savaş, Ilknur Erol, Semra Saygı, Mehmet Ali Habeşoğlu
Narcolepsy is characterized by excessive sleepiness, cataplexy, hypnagogic hallucinations, and sleep paralysis during the rapid eye movement period of sleep. Herein, we present a boy aged eight years who was diagnosed as having narcolepsy and cataplexy about thirteen months after his first presentation. He was admitted with symptoms of daytime sleepiness. In the follow-up, cataplexy in the form of head dropping attacks developed seven months after the first admission. The patient was investigated for different prediagnoses and was eventually diagnosed as having narcolepsy and cataplexy through polysomnography and multiple sleep latency tests thirteen months after the first presentation...
December 2016: Türk Pediatri Arşivi
https://www.readbyqxmd.com/read/28089981/sleep-disturbances-and-neurobehavioral-performance-in-juvenile-idiopathic-arthritis
#16
Teresa M Ward, Dean W Beebe, Maida Lynn Chen, Carol A Landis, Sarah Ringold, Ken Pike, Carol A Wallace
OBJECTIVE: To examine the extent of polysomnographic (PSG) sleep disturbances [obstructive apnea hypopnea index (OAHI), number of wake bouts, arousals, periodic limb movements] and the effect of OAHI on neurobehavioral performance in juvenile idiopathic arthritis (JIA) with obstructive sleep apnea (OSA), JIA without OSA, and controls without OSA, adjusting for intelligence quotient (IQ), pain, medications, daytime sleepiness, and wake bouts. METHODS: Children 6-11 years, 68 with JIA and 67 controls, underwent 1 night of PSG and completed self-reported daytime sleepiness surveys, multiple sleep latency tests for physiological sleepiness, and neurobehavioral performance tests the next day...
March 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28087252/novel-method-for-evaluation-of-eye-movements-in-patients-with-narcolepsy
#17
Julie A E Christensen, Lykke Kempfner, Helle L Leonthin, Mathias Hvidtfelt, Miki Nikolic, Birgitte Rahbek Kornum, Poul Jennum
BACKGROUND: Narcolepsy causes abnormalities in the control of wake-sleep, non-rapid-eye-movement (non-REM) sleep and REM sleep, which includes specific eye movements (EMs). In this study, we aim to evaluate EM characteristics in narcolepsy as compared to controls using an automated detector. METHODS: We developed a data-driven method to detect EMs during sleep based on two EOG signals recorded as part of a polysomnography (PSG). The method was optimized using the manually scored hypnograms from 36 control subjects...
December 21, 2016: Sleep Medicine
https://www.readbyqxmd.com/read/28007360/protective-and-risk-factors-associated-with-adolescent-sleep-findings-from-australia-canada-and-the-netherlands
#18
Kate Bartel, Paul Williamson, Annette van Maanen, Jamie Cassoff, Anne Marie Meijer, Frans Oort, Bärbel Knäuper, Reut Gruber, Michael Gradisar
BACKGROUND: Sleep is vital for adolescent functioning. Those with optimal sleep duration have shown improved capacity to learn and decreased rate of motor vehicle accidents. This study explored the influence of numerous protective and risk factors on adolescents' school night sleep (bedtime, sleep latency, total sleep time) simultaneously to assess the importance of each one and compare within three countries. METHOD: Online survey data were collected from Australia, Canada, and The Netherlands...
October 2016: Sleep Medicine
https://www.readbyqxmd.com/read/28007359/neurocognitive-function-in-patients-with-residual-excessive-sleepiness-from-obstructive-sleep-apnea-a-prospective-controlled-study
#19
Ksdy S Werli, Leonardo J Otuyama, Paulo H Bertolucci, Camila F Rizzi, Christian Guilleminault, Sergio Tufik, Dalva Poyares
OBJECTIVE: This study aimed to evaluate neurocognitive function in adult patients with residual excessive sleepiness (RES) after appropriate treatment of obstructive sleep apnea (OSA) with CPAP and good adherence to treatment. METHODS: This was a prospective controlled study. We included patients of both sexes, aged 35-60 years with OSA and an apnea-hypopnea index >20 ev/h, effectively treated with CPAP, but with a residual Epworth Sleepiness Scale score ≥11...
October 2016: Sleep Medicine
https://www.readbyqxmd.com/read/27998000/severe-excessive-daytime-sleepiness-induced-by-hydroxyurea
#20
Bruno RevoL, Marie Joyeux-Faure, Marie-Victoire Albahary, Remy Gressin, Michel Mallaret, Jean-Louis Pepin, Sandrine H Launois
Excessive daytime sleepiness (EDS) has been reported with many drugs, either as an extension of a hypnotic effect (e.g., central nervous system depressants) or as an idiosyncratic response of the patient. Here, we report unexpected and severe subjective and objective EDS induced by hydroxyurea therapy, with a favorable outcome after withdrawal. Clinical history, sleep log, polysomnography and multiple sleep latency tests confirming the absence of other EDS causes are presented. This article is protected by copyright...
December 20, 2016: Fundamental & Clinical Pharmacology
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