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https://www.readbyqxmd.com/read/28522102/retrospective-multicenter-matched-case-control-study-on-the-risk-factors-for-narcolepsy-with-special-focus-on-vaccinations-including-pandemic-influenza-vaccination-and-infections-in-germany
#1
Doris Oberle, Jutta Pavel, Geert Mayer, Peter Geisler, Brigitte Keller-Stanislawski
OBJECTIVE: Studies associate pandemic influenza vaccination with narcolepsy. In Germany, a retrospective, multicenter, matched case-control study was performed to identify risk factors for narcolepsy, particularly regarding vaccinations (seasonal and pandemic influenza vaccination) and infections (seasonal and pandemic influenza) and to quantify the detected risks. METHODS: Patients with excessive daytime sleepiness who had been referred to a sleep center between April 2009 and December 2012 for multiple sleep latency test (MSLT) were eligible...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28471950/comparison-of-sleep-latency-and-number-of-soremps-in-the-home-and-hospital-with-a-modified-multiple-sleep-latency-test-a-randomized-crossover-study
#2
Kornelia K Beiske, Trond Sand, Eyvind Rugland, Knut Stavem
PURPOSE: Comparison of mean sleep latencies and number of sleep-onset rapid eye movement periods (SOREMPs) between modified multiple sleep latency test (MSLT) performed in the unattended home and in-hospital laboratory setting. METHODS: A randomized crossover single-blinded design. Thirty-four subjects referred to MSLT for suspected hypersomnia or narcolepsy were included. Participants were randomized to perform modified MSLT in the unattended home or in the hospital first...
May 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28444396/circadian-impairment-of-distal-skin-temperature-rhythm-in-patients-with-sleep-disordered-breathing-the-effect-of-cpap
#3
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
#4
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
#5
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...
May 1, 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
#6
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
#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, 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/28355750/-association-between-subjective-and-objective-sleepiness-in-obstructive-sleep-apnea-hypopnea-syndrome-patients
#8
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/28315606/video-ambulatory-eeg-a-good-alternative-to-inpatient-video-telemetry
#9
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/28224364/the-impact-of-smoking-on-sentinel-node-metastasis-of-primary-cutaneous-melanoma
#10
Maris S Jones, Peter C Jones, Stacey L Stern, David Elashoff, Dave S B Hoon, John Thompson, Nicola Mozzillo, Omgo E Nieweg, Dirk Noyes, Harald J Hoekstra, Jonathan S Zager, Daniel F Roses, Alessandro Testori, Brendon J Coventry, Mark B Smithers, Robert Andtbacka, Doreen Agnese, Erwin Schultz, Eddy C Hsueh, Mark Kelley, Schlomo Schneebaum, Lisa Jacobs, Tawnya Bowles, Mohammed Kashani-Sabet, Douglas Johnson, Mark B Faries
BACKGROUND: Although a well-established causative relationship exists between smoking and several epithelial cancers, the association of smoking with metastatic progression in melanoma is not well studied. We hypothesized that smokers would be at increased risk for melanoma metastasis as assessed by sentinel lymph node (SLN) biopsy. METHODS: Data from the first international Multicenter Selective Lymphadenectomy Trial (MSLT-I) and the screening-phase of the second trial (MSLT-II) were analyzed to determine the association of smoking with clinicopathologic variables and SLN metastasis...
February 21, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27905955/future-healthy-life-expectancy-among-older-adults-in-the-us-a-forecast-based-on-cohort-smoking-and-obesity-history
#11
Bochen Cao
BACKGROUND: In the past three decades, the elderly population in the United States experienced increase in life expectancy (LE) and disability-free life expectancy (LE(ND)), but decrease in life expectancy with disability (LE(D)). Smoking and obesity are two major risk factors that had negative impacts on these trends. While smoking prevalence continues to decline in recent decades, obesity prevalence has been growing and is currently at a high level. This study aims to forecast the healthy life expectancy for older adults aged 55 to 85 in the US from 2011 to 2040, in relation to their smoking and obesity history...
July 12, 2016: Population Health Metrics
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
#12
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...
January 2017: Psychiatry Research
https://www.readbyqxmd.com/read/27855741/normal-morning-melanin-concentrating-hormone-levels-and-no-association-with-rapid-eye-movement-or-non-rapid-eye-movement-sleep-parameters-in-narcolepsy-type-1-and-type-2
#13
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 non-rapid 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...
February 15, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/27810178/deficits-in-attention-performance-are-associated-with-insufficiency-of-slow-wave-sleep-in-insomnia
#14
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
#15
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
#16
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/27692272/hyperarousal-in-insomnia-and-hypnotic-dose-escalation
#17
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/27663355/brain-imaging-and-cognition-in-young-narcoleptic-patients
#18
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/27620392/obstructive-sleep-apnea-with-objective-daytime-sleepiness-is-associated-with-hypertension
#19
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/27590685/sentinel-node-biopsy-in-melanoma-current-controversies-addressed
#20
REVIEW
M F Madu, M W J M Wouters, A C J van Akkooi
Sentinel node biopsy (SNB) is the most accurate staging tool for melanoma patients. The procedure is indicated especially for intermediate thickness melanoma (pT2/3). SNB can be of value in thin melanoma (>0.75 mm in thickness), with adverse prognostic factors, and in thick melanomas (pT4), although T4 patients are already at high risk of disease progression. Completion lymph node dissection (CLND) after positive SN yields additional non-sentinel lymph nodes (NSNs) in 20% of cases. Several factors are predictive for NSN positivity, such as primary tumor characteristics and SN tumor burden...
March 2017: European Journal of Surgical Oncology
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