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Polysomnography

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https://www.readbyqxmd.com/read/29055261/the-nosas-score-a-new-and-simple-screening-tool-for-obstructive-sleep-apnea-syndrome-in-depressive-disorder
#1
Kelly Guichard, Helena Marti-Soler, Jean-Arthur Micoulaud-Franchi, Pierre Philip, Pedro Marques-Vidal, Peter Vollenweider, Gerard Waeber, Martin Preisig, José Haba-Rubio, Raphael Heinzer
BACKGROUND: Since the clinical presentation of obstructive sleep apnea syndrome (OSAS) shares common features with major depressive (MDE), the screening of OSAS is challenging in this population. The aim of this study was to assess the effectiveness of the NoSAS score in predicting the presence of OSAS among participants with current MDE and to compare it with the performance of existing screening tools. METHODS: A random sample of the population-based cohort CoLaus (Lausanne, Switzerland) underwent a psychiatric evaluation (PsyCoLaus) and a complete polysomnography at home (HypnoLaus)...
October 5, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29054915/prevalence-of-sleep-apnoea-and-capnographic-detection-of-nocturnal-hypoventilation-in-amyotrophic-lateral-sclerosis
#2
Matthias Boentert, Christian Glatz, Cornelia Helmle, Angelika Okegwo, Peter Young
OBJECTIVE: This retrospective study aimed to investigate whether overnight oxymetry and early morning blood gas analysis predict nocturnal hypoventilation (NH) as reflected by night-time hypercapnia in patients with amyotrophic lateral sclerosis (ALS). In addition, prevalence and clinical determinants of sleep apnoea in ALS were evaluated. METHODS: In 250 patients with non-ventilated ALS, transcutaneous capnometry was performed along with polysomnography or polygraphy and early morning blood gases...
October 20, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/29045745/long-term-oral-appliance-therapy-improves-daytime-function-and-mood-in-upper-airway-resistance-syndrome-patients
#3
Luciana B M Godoy, Luciana Palombini, Dalva Poyares, Cibele Dal-Fabbro, Thaís Moura Guimarães, Priscila Calixto Klichouvicz, Sergio Tufik, Sonia Maria Togeiro
Objectives: To evaluate the long term effects of an oral appliance on clinical symptoms, respiratory sleep parameters, sleep quality and sustained attention in patients with Upper Airway Resistance Syndrome (UARS) compared with placebo. Methods: This study was a randomized placebo-controlled clinical trial. Thirty UARS patients were randomized in two groups: placebo and mandibular advancement device (MAD) groups. UARS criteria were presence of sleepiness (Epworth Sleepiness Scale ≥ 10) and/or fatigue (Modified Fatigue Impact Scale ≥ 38) associated with an apnea/hypopnea index (AHI) ≤ 5 and a respiratory disturbance index (RDI) > 5 events/hour of sleep, and/or flow limitation in more than 30% of total sleep time...
October 17, 2017: Sleep
https://www.readbyqxmd.com/read/29043111/a-retrospective-study-does-upper-airway-morphology-differ-between-non-positional-and-positional-obstructive-sleep-apnea
#4
Xiao Jiao, Jianyin Zou, Suru Liu, Jian Guan, Hongliang Yi, Shankai Yin
OBJECTIVE: The objective of this study was to explore the differences in upper airway morphology between positional (POSA) and non-positional (NPOSA) obstructive sleep apnea. METHODS: This retrospective study enrolled 75 patients (45 NPOSA and 30 POSA) who underwent polysomnography (PSG) and computed tomography (CT). The differences in, and relationships of, the PSG values and CT data between POSA and NPOSA were analyzed. RESULTS: Significant (p < 0...
2017: PeerJ
https://www.readbyqxmd.com/read/29042891/differential-effects-of-obesity-on-obstructive-sleep-apnea-syndrome-according-to-age
#5
Yu-Jin G Lee, Yu Jin Lee, Do-Un Jeong
OBJECTIVE: To evaluate the effect of obesity on obstructive sleep apnea syndrome (OSAS) by age in relation to anthropometric measurements. METHODS: The medical records of 1,110 participants diagnosed with OSAS were analyzed according to age. All participants underwent nocturnal polysomnography and had their body mass index, waist circumference, neck circumference (NC), and waist-to-hip ratio measured. RESULTS: According to the multiple linear regression analysis model for the natural logarithm of the apnea-hypopnea index treating all four anthropometric measurements and gender as covariates, the final stepwise model accounted for an increasing percentage of the variability in the severity of OSAS as a function of age: 7...
September 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/29042391/korean-obesity-surgical-treatment-study-kobess-protocol-of-a-prospective-multicentre-cohort-study-on-obese-patients-undergoing-laparoscopic-sleeve-gastrectomy-and-roux-en-y-gastric-bypass
#6
Young Suk Park, Do Joong Park, Joo Ho Lee, Hyuk-Joon Lee, Tae Kyung Ha, Yong-Jin Kim, Seung-Wan Ryu, Sang-Moon Han, Moon-Won Yoo, Sungsoo Park, Sang-Uk Han, Yoonseok Heo
INTRODUCTION: Bariatric surgery effectively induces long-term weight loss in Western populations. However, its effectiveness in Asians remains to be confirmed objectively. The Korean Society for Metabolic and Bariatric Surgery proposes the first prospective cohort study on Koreans undergoing bariatric surgery. METHODS AND ANALYSIS: The Korean OBEsity Surgical treatment Study (KOBESS) is a prospective, multicentre, single-arm, observational, cohort study on morbidly obese patients who undergo primary sleeve gastrectomy or Roux-en-Y gastric bypass in Korea...
October 16, 2017: BMJ Open
https://www.readbyqxmd.com/read/29042180/idiopathic-rem-sleep-behavior-disorder-in-the-elderly-spanish-community-a-primary-care-center-study-with-a-two-stage-design-using-video-polysomnography
#7
Montserrat Pujol, Jesús Pujol, Tomás Alonso, Araceli Fuentes, Mercè Pallerola, Jovita Freixenet, Ferran Barbé, Manel Salamero, Joan Santamaría, Alex Iranzo
OBJECTIVE: To examine the presence and characteristics of idiopathic REM sleep behavior disorder (IRBD) in a representative Caucasian sample from the elderly community of Lleida, Spain, attending primary care centers. METHODS: Participants were individuals aged 60 years or older who underwent routine visits in two primary care centers. They underwent a two-stage study; a validated screening single question for IRBD diagnosis (RBD1Q) followed by, in those who endorsed positive answer, clinical assessment by a neurologist plus video-polysomnography (V-PSG)...
August 24, 2017: Sleep Medicine
https://www.readbyqxmd.com/read/29042002/obstructive-sleep-apnea-syndrome-in-parkinson-s-disease-and-other-parkinsonisms
#8
F Crosta, Giovambattista Desideri, Carmine Marini
An association of obstructive sleep apnea syndrome (OSAS) and other sleep-disordered breathing (SDB) with Parkinson's disease (PD) has been reported in some small studies. In the present study we investigated the occurrence of SDB in a large consecutive outpatient series. This is a case-control study in subjects attending a neurological clinic where all patients were screened for SDB by means of sleep-wake history, Epworth Sleepiness Scale, and full-night polysomnography, when indicated. 3194 patients were recruited...
July 2017: Functional Neurology
https://www.readbyqxmd.com/read/29040758/linking-light-exposure-and-subsequent-sleep-a-field-polysomnography-study-in-humans
#9
Emma J Wams, Tom Woelders, Irene Marring, Laura van Rosmalen, Domien G M Beersma, Marijke C M Gordijn, Roelof A Hut
Study objectives: To determine the effect of light exposure on subsequent sleep characteristics under ambulatory field conditions. Methods: Twenty healthy participants were fitted with ambulatory PSG and wrist-actigraphs to assess light exposure, rest-activity, sleep quality, timing and architecture. Laboratory salivary dim-light melatonin onset (DLMO) was analyzed to determine endogenous circadian phase. Results: Later circadian clock phase was associated with lower intensity (R2=0...
October 11, 2017: Sleep
https://www.readbyqxmd.com/read/29040275/nocturnal-sleep-mediates-the-relationship-between-morningness-eveningness-preference-and-the-sleep-architecture-of-afternoon-naps-in-university-students
#10
Tzu-Yin Lee, Pi-Chen Chang, Ing-Jy Tseng, Min-Huey Chung
The present study investigated the parameters of nocturnal sleep that mediate the relationship between morningness-eveningness preference and the sleep architecture of naps in university students. This study had a cross-sectional, descriptive correlational design. The sleep architecture of 52 students invited to take an afternoon nap in the laboratory was recorded. The morningness-eveningness questionnaire (MEQ) was used to evaluate morningness-eveningness preference. An actigraph was used to collect students' nighttime sleep data in the week preceding the study...
2017: PloS One
https://www.readbyqxmd.com/read/29038950/firing-a-loaded-gun-during-sleep-in-an-elderly-man-with-a-perfect-storm-of-risk-factors-including-severe-obstructive-sleep-apnea
#11
Francesca Ingravallo, Carlos H Schenck, Ernesto D'Aloja, Monica Puligheddu
PURPOSE: We report a case of firing a loaded gun during sleep in a geriatric patient with undiagnosed major sleep disorders and multiple risk factors for sleep violence. Polysomnographic findings, diagnostic challenges, and forensic implications in this unprecedented geriatric case are discussed. METHODS: A 75-year-old employed man, married for 32 years, presented to a sleep center reporting to having fired a shot in his bedroom during sleep while his wife was away, without memory of hearing the gunshot...
October 16, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29038949/sleep-disorders-and-health-related-quality-of-life-in-patients-with-interstitial-lung-disease
#12
Maria Mavroudi, Despoina Papakosta, Theodore Kontakiotis, Kaliopi Domvri, George Kalamaras, Vasiliki Zarogoulidou, Paul Zarogoulidis, Paschalina Latka, Haidong Huang, Wolfgang Hohenforst-Schmidt, Konstantinos Zarogoulidis
BACKGROUND: Interstitial lung diseases (ILD) are chronic and restrictive lung diseases with poor survival and quality of life. The aim of this study was to investigate the frequency of sleep disorders in idiopathic pulmonary fibrosis (IPF) and sarcoidosis and to assess patients' quality of life in relation to these disorders. METHODS: Forty patients, 19 with IPF, and 21 with sarcoidosis stage II/III were included. They were compared with 15 healthy subjects. All patients performed all-night polysomnography (PSG) and completed the Epworth, Berlin, and Stop-Bang questionnaires...
October 16, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29036480/treatment-of-obstructive-sleep-apnoea-hypopnea-syndrome-by-mandible-advanced-device-reduced-neuron-apoptosis-in-frontal-cortex-of-rabbits
#13
Hai-Yan Lu, Wen Wang, Zheng Zhou, Chun-Yan Liu, Ye Liu, Wei Xiao, Fu-Sheng Dong, Jie Wang
Objective: To investigate effects of mandible advanced device (MAD) therapy for obstructive sleep apnoea-hypopnea syndrome (OSAHS) on the neuron apoptosis and acetylcholine esterase activity in frontal cortex. Materials and methods: Thirty male New Zealand white rabbits were randomly divided into three groups (n = 10 in each group): group OSAHS, group MAD, and control group. Hydrophilic polyacrylamide gel was injected into soft palate of the animals to induce OSAHS in group OSAHS and group MAD...
September 23, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/29035709/heart-rate-variability-and-salivary-cortisol-in-very-preterm-children-during-school-age
#14
Natalie Urfer-Maurer, Sebastian Ludyga, Tobias Stalder, Serge Brand, Edith Holsboer-Trachsler, Markus Gerber, Alexander Grob, Peter Weber, Sakari Lemola
The autonomic nervous system (ANS) plays a major role in the human stress response and reflects physical and psychological adaptability to a changing environment. Long-term exposure to early life stressors may alter the function of the ANS. The present study examines differences in the ANS between children born very preterm and full-term as well as the association between the ANS and the hypothalamic-pituitary-adrenal (HPA) axis, the other main branch of the human stress system. Fifty-four healthy children born very preterm (<32nd gestational week) and 67 full-term children aged 7-12 years provided data for the present study...
October 5, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29031752/sleep-and-slow-wave-activity-in-depressed-adolescent-boys-a-preliminary-study
#15
Olena Santangeli, Tarja Porkka-Heiskanen, Jussi Virkkala, Anu E Castaneda, Mauri Marttunen, Tiina Paunio, Anna S Urrila
OBJECTIVE: Adolescence is a vulnerable period of life that is characterized by increasing incidence of depression. Sleep disturbance is one of the diagnostic symptoms of depressive disorder. Adolescence is also characterized by dramatic maturational changes in sleep and its regulation. The goal of this study was to assess sleep macroarchitecture and slow-wave activity (SWA) in depressed adolescent boys. METHODS: Eight non-medicated adolescent boys meeting the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) criteria for depressive disorder and 10 age-matched healthy controls (average age 16...
October 2017: Sleep Medicine
https://www.readbyqxmd.com/read/29031745/sleep-architecture-in-patients-with-juvenile-myoclonic-epilepsy
#16
Jaidaa F Mekky, Sonia M Elbhrawy, Mohamed F Boraey, Horeya M Omar
AIM: The aim is to analyze the sleep architecture using polysomnography (PSG) in patients with Juvenile Myoclonic Epilepsy (JME): (newly diagnosed and those on valproate drug) attending epilepsy clinic at Alexandria University Hospitals. METHODS: This study involved 20 patients with JME on valproate (age: 22.40 ± 5.80 years; M:F = 6:14), 20 newly diagnosed patients (age: 18.55 ± 6.0 years; M:F = 6:14), and 20 matched healthy controls (age: 22.10 ± 5...
October 2017: Sleep Medicine
https://www.readbyqxmd.com/read/29031741/further-evidences-for-sleep-instability-and-impaired-spindle-delta-dynamics-in-schizophrenia-a-whole-night-polysomnography-study-with-neuroloop-gain-and-sleep-cycle-analysis
#17
Arun Sasidharan, Sunil Kumar, Ajay Kumar Nair, Ammu Lukose, Vrinda Marigowda, John P John, Bindu M Kutty
OBJECTIVE: Sleep offers a unique window into the brain dysfunctions in schizophrenia. Many past sleep studies have reported abnormalities in both macro-sleep architecture (like increased awakenings) as well as micro-sleep-architecture (like spindle deficits) in patients with schizophrenia (PSZ). The present study attempts to replicate previous reports of macro- and micro-sleep-architectural abnormalities in schizophrenia. In addition, the study also examined sleep-stage changes and spindle-delta dynamics across sleep-cycles to provide further evidence in support of the dysfunctional thalamocortical mechanisms causing sleep instability and poor sleep maintenance associated with schizophrenia pathophysiology...
October 2017: Sleep Medicine
https://www.readbyqxmd.com/read/29030566/unobtrusive-nocturnal-heartbeat-monitoring-by-a-ballistocardiographic-sensor-in-patients-with-sleep-disordered-breathing
#18
Matthias Daniel Zink, Christoph Brüser, Björn-Ole Stüben, Andreas Napp, Robert Stöhr, Steffen Leonhardt, Nikolaus Marx, Karl Mischke, Jörg B Schulz, Johannes Schiefer
Sleep disordered breathing (SDB) is known for fluctuating heart rates and an increased risk of developing arrhythmias. The current reference for heartbeat analysis is an electrocardiogram (ECG). As an unobtrusive alternative, we tested a sensor foil for mechanical vibrations to perform a ballistocardiography (BCG) and applied a novel algorithm for beat-to-beat cycle length detection. The aim of this study was to assess the correlation between beat-to-beat cycle length detection by the BCG algorithm and simultaneously recorded ECG...
October 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29029313/subjective-objective-sleep-discrepancy-is-associated-with-alterations-in-regional-glucose-metabolism-in-patients-with-insomnia-and-good-sleeper-controls
#19
Daniel B Kay, Helmet T Karim, Adriane M Soehner, Brant P Hasler, Jeffrey A James, Anne Germain, Martica H Hall, Peter L Franzen, Julie C Price, Eric A Nofzinger, Daniel J Buysse
Objectives: Sleep discrepancies are common in primary insomnia (PI), and include reports of longer sleep onset latency (SOL) than measured by polysomnography (PSG), or "negative SOL discrepancy." We hypothesized that negative SOL discrepancy in PI would be associated with higher relative glucose metabolism during non-rapid eye movement (NREM) sleep in brain networks involved in conscious awareness, including the salience, left executive control, and default mode networks. Methods: PI (n=32) and good sleeper controls (GS; n=30) completed [ 18F]fluorodeoxyglucose positron emission tomography (FDG-PET) scans during NREM sleep and relative regional cerebral metabolic rate for glucose (rCMRglc) was measured...
October 3, 2017: Sleep
https://www.readbyqxmd.com/read/29029305/large-scale-automated-sleep-staging
#20
Haoqi Sun, Jian Jia, Balaji Goparaju, Guang-Bin Huang, Olga Sourina, Matt Travis Bianchi, M Brandon Westover
Study Objectives: Automated sleep staging has been previously limited by a combination of clinical and physiological heterogeneity. Both factors are in principle addressable with large data sets that enable robust calibration. However, the impact of sample size remains uncertain. The objectives are to investigate the extent to which machine learning methods can approximate the performance of human scorers when supplied with sufficient training cases and to investigate how staging performance depends on the number of training patients, contextual information, model complexity, and imbalance between sleep stage proportions...
September 26, 2017: Sleep
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