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https://www.readbyqxmd.com/read/27891255/comparison-of-subjective-and-objective-sleep-estimations-in-patients-with-bipolar-disorder-and-healthy-control-subjects
#1
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
https://www.readbyqxmd.com/read/27863318/characteristics-of-objective-daytime-sleep-among-individuals-with-earthquake-related-posttraumatic-stress-disorder-a-pilot-community-based-polysomnographic-and-multiple-sleep-latency-test-study
#2
Yan Zhang, Yun Li, Hongru Zhu, Haofei Cui, Changjian Qiu, Xiangdong Tang, Wei Zhang
Little is known about the objective sleep characteristics of patients with posttraumatic stress disorder (PTSD). The present study examines the association between PTSD symptom severity and objective daytime sleep characteristics measured using the Multiple Sleep Latency Test (MSLT) in therapy-naïve patients with earthquake-related PTSD. A total of 23 PTSD patients and 13 trauma-exposed non-PTSD (TEN-PTSD) subjects completed one-night in-lab polysomnography (PSG) followed by a standard MSLT. 8 of the 23 PTSD patients received paroxetine treatment...
September 21, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27857041/narcolepsy-with-cataplexy-in-a-child-with-charcot-marie-tooth-disease-case-report
#3
(no author information available yet)
We report an 8-year-old boy diagnosed with both CMT1 and narcolepsy, which were not reported simultaneously presenting in one person. The boy presented with a history of increased suddenly falling frequency and excessive daytime sleepiness for 3 months. CMT1 was diagnosed by electrophysiology and genetic testing. Narcolepsy had not been diagnosed until the frequently falling caused by sudden and transient episodes of legs weakness triggered by emotion was found. Multiple sleep latency test showed multiple sleep onset REM periods with reduced sleep latency...
September 18, 2016: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/27855741/normal-morning-mch-levels-and-no-association-with-rem-or-nrem-sleep-parameters-in-narcolepsy-type-1-and-type-2
#4
Maren Schrölkamp, Poul J Jennum, Steen Gammeltoft, Anja Holm, Birgitte R Kornum, Stine Knudsen
STUDY OBJECTIVES: Other than hypocretin-1 (HCRT-1) deficiency in narcolepsy type 1 (NT1), the neurochemical imbalance of NT1 and narcolepsy type 2 (NT2) with normal HCRT-1 levels is largely unknown. The neuropeptide melanin-concentrating hormone (MCH) is mainly secreted during sleep and is involved in rapid eye movement (REM) and nonrapid eye movement (NREM) sleep regulation. Hypocretin neurons reciprocally interact with MCH neurons. We hypothesized that altered MCH secretion contributes to the symptoms and sleep abnormalities of narcolepsy and that this is reflected in morning cerebrospinal fluid (CSF) MCH levels, in contrast to previously reported normal evening/afternoon levels...
November 14, 2016: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/27814342/background-media-exposure-prolongs-nighttime-sleep-latency-in-thai-infants
#5
Weerasak Chonchaiya, Tanaporn Wilaisakditipakorn, Nakul Vijakkhana, Chandhita Pruksananonda
BACKGROUND: Little is known about the effect of screen time and sleep at a younger age on current sleep outcome in infants. We therefore examined whether sleep parameter at a younger age and daily exposure of electronic media could predict sleep outcomes in 12-month-old Thai infants. METHODS: There were 208 typically developing infants enrolled since 6 months old. Each main caregiver completed a sleep diary and was interviewed for the infant's screen exposure at 6 and 12 months of age...
November 4, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27810178/deficits-in-attention-performance-are-associated-with-insufficiency-of-slow-wave-sleep-in-insomnia
#6
Yun Li, Hong Liu, Jason G Weed, Rong Ren, Yuanfeng Sun, Lu Tan, Xiangdong Tang
OBJECTIVE: Cognitive impairment is associated with insomnia. However, there is a lack of evidence suggesting a link between insomnia and cognitive dysfunction in objective testing. The objectives of our current study were to assess the differences in components of attentional performance between primary insomnia patients and normal-sleeping controls and to examine potential predictors of attention impairment in patients with insomnia. METHODS: We studied 36 patients (age 40...
August 2016: Sleep Medicine
https://www.readbyqxmd.com/read/27748237/objective-but-not-subjective-sleepiness-is-associated-with-inflammation-in-sleep-apnea
#7
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, i.e., 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...
October 10, 2016: Sleep
https://www.readbyqxmd.com/read/27723544/longitudinal-associations-of-hypersomnolence-and-depression-in-the-wisconsin-sleep-cohort-study
#8
David T Plante, Laurel A Finn, Erika W Hagen, Emmanuel Mignot, Paul E Peppard
BACKGROUND: Hypersomnolence is common in depression, however longitudinal associations of excessive daytime sleepiness (EDS), long habitual sleep duration, and objective sleep propensity with depressive symptomatology are not well established. METHODS: Data from adults participating in the Wisconsin Sleep Cohort Study who had multiple assessments at 4-year intervals were utilized in analyses. Conditional (intrasubject) logistic regression estimated the likelihood of development of depression and three primary hypersomnolence measures: subjective EDS [Epworth Sleepiness Scale (ESS) >10], habitual sleep duration ≥9h/day, and increased physiological sleep propensity [multiple sleep latency test (MSLT) mean sleep latency <8min]...
January 1, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27697873/assessment-for-the-possibility-of-a-first-night-effect-for-wrist-actigraphy-in-adolescents
#9
Teresa Arora, Omar M Omar, Shahrad Taheri
OBJECTIVES: Evidence of a 'first night effect' has been documented for polysomnography. The possibility of this has not been previously assessed in wrist actigraphy, yet may have important implications for the study design of future sleep research. We sought to examine potential evidence of a 'first night effect' for wrist actigraphy in adolescents across weekdays and weekend nights for multiple sleep outcomes. DESIGN: 3-year prospective cohort study (Midlands Adolescent Schools Sleep Education Study)...
October 3, 2016: BMJ Open
https://www.readbyqxmd.com/read/27692272/hyperarousal-in-insomnia-and-hypnotic-dose-escalation
#10
T A Roehrs, T Roth
BACKGROUND: Given concerns about the abuse liability of hypnotics, this study assessed hyperarousal in people with insomnia and its relation to hypnotic self-administration over 12 months of nightly hypnotic use. METHODS: Ninety-five subjects with insomnia (age 32-64 years) underwent screening nocturnal polysomnogram (NPSG) and Multiple Sleep Latency Test (MSLT) the following day and, then, were randomized to receive zolpidem 10 mg or placebo nightly for 12 months...
July 2016: Sleep Medicine
https://www.readbyqxmd.com/read/27668524/smoking-prevalence-and-its-clinical-correlations-in-patients-with-narcolepsy-cataplexy
#11
Pavla Peřinová, Eva Feketeová, David Kemlink, Petra Kovalská, Karolína Chlebušová, Jiří Nepožitek, Veronika Ibarburu, Eva Králíková, Soňa Nevšímalová, Karel Šonka
Narcolepsy-cataplexy (NC) is a chronic neurological disease with suggested autoimmune etiopathogenesis. Nicotine stimulates central nervous system and smoking increases the risk of autoimmune diseases. Assessment of smoking habits and its correlation to clinical parameters among 87 adult NC patients (38 male, 49 female) included night polysomnography and multiple sleep latency test. In our sample, 43.7% NC patients were regular smokers, and 19.5% former smokers compared to 22.2%, and 12.6%, respectively, in the general population...
2016: Prague Medical Report
https://www.readbyqxmd.com/read/27663355/brain-imaging-and-cognition-in-young-narcoleptic-patients
#12
Yu-Shu Huang, Feng-Yuan Liu, Chin-Yang Lin, Ing-Tsung Hsiao, Christian Guilleminault
The relationship between functional brain images and performances in narcoleptic patients and controls is a new field of investigation. We studied 71 young, type 1 narcoleptic patients and 20 sex- and age-matched control individuals using brain positron emission tomography (PET) images and neurocognitive testing. Clinical investigation was carried out using sleep-wake evaluation questionnaires; a sleep-wake study was conducted with actigraphy, polysomnography, multiple sleep latency test (MSLT), and blood tests (with human leukocyte antigen typing)...
January 19, 2016: Sleep Medicine
https://www.readbyqxmd.com/read/27625088/comparison-study-of-polysomnographic-features-in-multiple-system-atrophy-cerebellar-types-combined-with-and-without-rapid-eye-movement-sleep-behavior-disorder
#13
Yan Ding, Yue-Qing Hu, Shu-Qin Zhan, Cun-Jiang Li, Hong-Xing Wang, Yu-Ping Wang
BACKGROUND: The brain stem is found to be impaired in multiple system atrophy-cerebellar types (MSA-C). Rapid eye movement (REM) sleep behavior disorder (RBD) is reported as a marker of progressive brain stem dysfunction. Few systematic studies about the sleep disturbances in MSA-C patients combined with or without RBD were reported. This study aimed to explore the polysomnographic (PSG) features of sleep disturbances between MSA-C patients with and without RBD. METHODS: Totally, 46 MSA-C patients (23 with RBD, and 23 without RBD) were enrolled in this study...
2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27620392/obstructive-sleep-apnea-with-objective-daytime-sleepiness-is-associated-with-hypertension
#14
Rong Ren, Yun Li, Jihui Zhang, Junying Zhou, Yuanfeng Sun, Lu Tan, Taomei Li, Yun-Kwok Wing, Xiangdong Tang
Subjective daytime sleepiness is considered a significant risk factor of hypertension in patients with obstructive sleep apnea (OSA). In this study, our goal was to examine the joint effect on hypertension of OSA and objective daytime sleepiness measured by the multiple sleep latency test (MSLT). A total of 1338 Chinese patients with OSA and 484 primary snorers were included in the study. All subjects underwent 1 night polysomnography followed by MSLT. The MSLT values were classified into 3 categories: >8 minutes, 5 to 8 minutes, and <5 minutes...
November 2016: Hypertension
https://www.readbyqxmd.com/read/27600421/-the-analysis-of-pattern-visual-evoked-potential-in-obstructive-sleep-apnea-syndrome
#15
H Huang, H Shen, Z Qin, D D Jiang, J L Han, L Wang, W Wang
OBJECTIVE: To objectively evaluate visual function by pattern visual evoked potential (PVEP) and its related factors in patients with obstructive sleep apnea syndrome (OSAS)without any ocular symptoms. METHODS: Eighty-three newly diagnosed OSAS and 18 normal subjects were enrolled in the study. The OSAS patients were divided into mild (n=11), moderate(n=17) and severe (n=55) groups based on the apnea-hypopnea index(AHI). Before the polysomnography(PSG) test, all participants underwent a PVEP examination measuring the latency and amplitude of P100...
September 2016: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/27568897/urine-toxicology-in-adults-evaluated-for-a-central-hypersomnia-and-how-the-results-modify-the-physician-s-diagnosis
#16
Christopher A Kosky, Anastasios Bonakis, Arthee Yogendran, Gihan Hettiarachchi, Paul I Dargan, Adrian J Williams
STUDY OBJECTIVES: Drugs and psychoactive substances can cause sleepiness and when undetected, may lead to over diagnosis of central hypersomnias. We performed urine drug testing using gas chromatography-mass spectrometry in adults undergoing multiple sleep latency testing (MSLT) for a suspected central hypersomnia. We examined how the drug test results modified the treating physician's diagnosis. METHODS: One hundred eighty-six consecutive patients with a suspected central hypersomnia who underwent clinical assessment, MSLT and urine drug testing by gas chromatography-mass spectrometry were retrospectively studied...
November 15, 2016: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/27553583/visual-signs-and-symptoms-of-corticobasal-degeneration
#17
REVIEW
Richard A Armstrong
Corticobasal degeneration is a rare, progressive neurodegenerative disease and a member of the 'parkinsonian' group of disorders, which also includes Parkinson's disease, progressive supranuclear palsy, dementia with Lewy bodies and multiple system atrophy. The most common initial symptom is limb clumsiness, usually affecting one side of the body, with or without accompanying rigidity or tremor. Subsequently, the disease affects gait and there is a slow progression to influence ipsilateral arms and legs. Apraxia and dementia are the most common cortical signs...
November 2016: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/27551242/naps-ms-natalizumab-effects-on-parameters-of-sleep-in-patients-with-multiple-sclerosis
#18
Richard A Sater, Mark Gudesblatt, Kiren Kresa-Reahl, David W Brandes, Pamela Sater
BACKGROUND: Patients with multiple sclerosis (MS) have higher rates of fatigue, mood disturbance, and cognitive impairments than healthy populations. Disease-modifying agents may affect sleep. Although patients taking natalizumab often show improvement in fatigue during the first year of therapy, the mechanism behind this effect is unknown. The aim of the NAPS-MS study was to investigate whether natalizumab affected objective measures of sleep as determined by polysomnography (PSG) and multiple sleep latency testing (MSLT) in patients with MS with fatigue or sleepiness initiating therapy...
July 2016: International Journal of MS Care
https://www.readbyqxmd.com/read/27542882/disorders-of-excessive-daytime-sleepiness-including-narcolepsy-and-idiopathic-hypersomnia
#19
REVIEW
Joseph Andrew Berkowski, Anita Valanju Shelgikar
Central disorders of hypersomnolence are rare conditions with a poorly understood pathophysiology, making the identification and management challenging for sleep clinicians. Clinical history is essential for ruling out secondary causes of hypersomnolence and distinguishing among diagnoses. Current diagnostic criteria rely heavily on the polysomnogram and multiple sleep latency test. The current focus of treatment of hypersomnolence is on drugs that promote alertness. Additionally, in the case of narcolepsy type 1, medication management addresses control of cataplexy, the hallmark symptom of this disorder...
September 2016: Sleep Medicine Clinics
https://www.readbyqxmd.com/read/27538328/-narcolepsy-with-cataplexy-type-1-narcolepsy
#20
Yves Dauvilliers, Régis Lopez
Narcolepsy with cataplexy or narcolepsy type 1 in a rare, disabling sleep disorder, with a prevalence of 20 to 30 per 100,000. Its onset peaks in the second decade. The main features are excessive daytime sleepiness and cataplexy or sudden less of muscle tone triggered by emotional situations. Other less consistent symptoms include hypnagogic hallucinations, sleep paralysis, disturbed nighttime sleep, and weight gain. Narcolepsy with cataplexy remains a clinical diagnosis but nighttime and daytime polysomnography (multiple sleep latency tests) are useful to document mean sleep latency below 8 min and at least two sleep-onset REM periods...
June 2016: La Revue du Praticien
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