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Polysomnography

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https://www.readbyqxmd.com/read/29236274/outcomes-of-adenotonsillectomy-in-severe-pediatric-obstructive-sleep-apnea
#1
Karim El-Kersh, Rodrigo Cavallazzi, Egambaram Senthilvel
We conducted a retrospective chart review to examine the efficacy of adenotonsillectomy for the treatment of severe obstructive sleep apnea (OSA) in children. Our study population was made up of 85 patients-58 boys and 27 girls, aged 1 to 17 years (mean: 6.9 ± 4.4)-with severe OSA who had undergone adenotonsillectomy and pre- and postoperative attended polysomnography (PSG) over a 4-year period. Severe OSA was defined as an apnea-hypopnea index (AHI) of >10 events per hour of sleep. Patients who had an underlying genetic or craniofacial anomaly were excluded...
December 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/29235925/left-atrial-remodelling-may-predict-exercise-capacity-in-obstructive-sleep-apnoea-patients
#2
Süha Çetin, Mustafa Vural, Ramazan Akdemir, Hikmet Fırat
BACKGROUND: Left atrial volume (LAV) and LA deformation has been proposed as a good marker of exercise performance in patients with diastolic dysfunction (DD). As DD is more prevalent in obstructive sleep apnoea (OSA) we aimed to evaluate the influence of LAV and LA deformation parameters on exercise performance in varying severity of OSA. MATERIALS AND METHODS: OSA was diagnosed after polysomnography. Fifty-five OSA patients were enrolled in the study. OSA patients were divided into two groups with apnoea-hypopna-index (AHI) > 30 and <30...
December 13, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/29235907/a-validation-study-of-fitbit-charge-2%C3%A2-compared-with-polysomnography-in-adults
#3
Massimiliano de Zambotti, Aimee Goldstone, Stephanie Claudatos, Ian M Colrain, Fiona C Baker
We evaluated the performance of a consumer multi-sensory wristband (Fitbit Charge 2™), against polysomnography (PSG) in measuring sleep/wake state and sleep stage composition in healthy adults. In-lab PSG and Fitbit Charge 2™ data were obtained from a single overnight recording at the SRI Human Sleep Research Laboratory in 44 adults (19-61 years; 26 women; 25 Caucasian). Participants were screened to be free from mental and medical conditions. Presence of sleep disorders was evaluated with clinical PSG...
December 13, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29232179/adenotonsillectomy-for-obstructive-sleep-apnea-in-children-with-complex-chronic-conditions
#4
Reshma Amin, Theresa Holler, Indra Narang, Sharon L Cushing, Evan J Propst, Suhail Al-Saleh
Objective To estimate the prevalence of persistent obstructive sleep apnea postadenotonsillectomy in children with complex chronic conditions. Study Design A retrospective cohort study. Setting The Hospital for Sick Children Sleep laboratory. Subjects Children ≤18 years of age who had moderate to severe obstructive sleep apnea and had polysomnography pre- and postadenotonsillectomy. Methods Medical and polysomnographic data were reviewed. The prevalence of persistent obstructive sleep apnea postadenotonsillectomy was determined for the following groups: no complex chronic conditions, single-system complex chronic conditions, and multisystem complex chronic conditions...
December 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29231317/-regulation-action-and-nerve-electrophysiology-mechanism-of-acupuncture-on-arousal-state-in-patients-of-primary-insomnia
#5
Yi Liu, Hui Feng, Wenjuan Liu, Hongjing Mao, Yali Mo, Yan Yin, Zhenghe Yu, Lianlian Xu
OBJECTIVE: To compare the difference between acupuncture and estazolam on arousal state in patients of primary insomnia, and to explore its nerve electrophysiology mechanism. METHODS: Sixty-four patients of primary insomnia were randomized into an acupuncture group (32 cases) and a medication group (32 cases). After 3 patients were excluded, 31 cases in the acupuncture group and 30 cases in the medication group were included. Patients in the acupuncture group were treated with acupuncture at Sishencong (EX-HN 1), Anmian (Extra), Shenmen (HT 7), Sanyinjiao (SP 6), Zhaohai (KI 6), Shenmai (BL 62) as main acupoints, combined with supporting acupoints, once a day, five times per week, continuously for 4 weeks...
January 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29231181/automatic-two-channel-sleep-staging-using-a-predictor-corrector-method
#6
Shirin Riazy, Tilo Wendler, Juergen Pilz
We developed and implemented two predictor-corrector methods for the classification of two-channel EEG data into sleep stages. Approach: The sequence of sleep stages over the night is modeled by a Markov chain of first and second order, resulting in an informative prior distribution for the new state given the distribution of the current one. The correction step is realized by applying a Bayes classifier using the (preprocessed) data and this prior. The preprocessing step consists of a frequency analysis, a log transformation and a dimensionality reduction via principle component analysis...
December 12, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/29229613/acupuncture-with-or-without-combined-auricular-acupuncture-for-insomnia-a-randomised-waitlist-controlled-trial
#7
Ka-Fai Chung, Wing-Fai Yeung, Branda Yee-Man Yu, Feona Chung-Yin Leung, Shi-Ping Zhang, Zhang-Jin Zhang, Roger Man-Kin Ng, Gar-Chung Yiu
BACKGROUND: Few high-quality, large-scale, controlled trials comparing the effectiveness and safety of acupuncture,auricular acupuncture and combined acupuncture treatment for insomnia are available. OBJECTIVE: To carry out a randomised, assessor-blinded, waitlist-controlled trial to test the superiority of combination treatment. METHODS: After in-person and polysomnography screening, 224 subjects (mean age 53.4 years; 75.4% female) with DSM-5 insomnia disorder, who were free from major psychiatric disorders and with sleep-diary-derived sleep efficiency averaged over 1 week of <85%, were randomised to acupuncture alone, acupuncture plus auricular acupuncture (combination treatment), or a waitlist in a 3:3:1 ratio...
December 11, 2017: Acupuncture in Medicine: Journal of the British Medical Acupuncture Society
https://www.readbyqxmd.com/read/29228393/quantifying-the-arousal-threshold-using-polysomnography-in-obstructive-sleep-apnea
#8
Scott A Sands, Philip I Terrill, Bradley A Edwards, Luigi Taranto Montemurro, Ali Azarbarzin, Melania Marques, Camila M de Melo, Stephen H Loring, James P Butler, David White, Andrew Wellman
Objectives: Precision medicine for obstructive sleep apnea (OSA) requires non-invasive estimates of each patient's pathophysiological "traits". Here we provide the first, automated technique to quantify the respiratory arousal threshold-defined as the level of ventilatory drive triggering arousal from sleep-using diagnostic polysomnographic signals in patients with OSA. Methods: Ventilatory drive preceding clinically-scored arousals was estimated from polysomnographic studies by fitting a respiratory control model (Terrill P et al...
November 9, 2017: Sleep
https://www.readbyqxmd.com/read/29226069/do-older-adults-need-sleep-a-review-of-neuroimaging-sleep-and-aging-studies
#9
Michael K Scullin
Purpose of Review: Sleep habits, sleep physiology, and sleep disorders change with increasing age. However, there is a longstanding debate regarding whether older adults need sleep to maintain health and daily functioning (reduced-sleep-need view). An alternative possibility is that all older adults need sleep, but that many older adults have lost the ability to obtain restorative sleep (reduced-sleep-ability view). Prior research using behavioral and polysomnography outcomes has not definitively disentangled the reduced-sleep-need and reduced-sleep-ability views...
September 2017: Current Sleep Medicine Reports
https://www.readbyqxmd.com/read/29224042/association-between-continuous-positive-airway-pressure-and-serum-aminotransferases-in-patients-with-obstructive-sleep-apnea
#10
Li-Da Chen, Liang-Ji Zhang, Xue-Jun Lin, Jia-Chao Qi, Hao Li, Zhi Wu, Qiao-Zhen Xu, Ya-Ping Huang, Li Lin
INTRODUCTION: Obstructive sleep apnea (OSA) has been suggested to be a potential contributing factor for nonalcoholic fatty liver disease (NAFLD). Studies on the association between continuous positive airway pressure (CPAP) and NAFLD in OSA patients are limited and controversial. OBJECTIVES: The aim of this study was to assess the relationship between OSA and NAFLD and the effect of CPAP therapy on serum aminotransferase levels in OSA patients. METHODS: A total of 160 consecutive patients who underwent standard polysomnography were enrolled...
December 9, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29222618/complex-sleep-apnea-after-full-night-and-split-night-polysomnography-the-greek-experience
#11
Katerina Baou, Charalampos Mermigkis, Aliki Minaritzoglou, Emmanouil Vagiakis
PURPOSE: Treatment-emergent central sleep apnea (TE-CSA) is defined as the emergence or persistence of central respiratory events during the initiation of positive airway pressure (PAP) without a back-up rate in obstructive sleep apnea (OSA) patients and after significant resolution of obstructive events. Previous studies have estimated a prevalence from 0.56 to 20.3%. The aim of this study was to establish the prevalence of TE-CSA in a Greek adult population. METHODS: One thousand fifty nine patients with newly diagnosed OSA, who were referred to the Sleep Disorders Center of Evangelismos Hospital of Athens over an 18-month period, were included in this study...
December 8, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29221772/investigating-psychological-and-physiological-responses-to-the-trier-social-stress-test-in-young-adults-with-insomnia
#12
Ivy Y Chen, Denise C Jarrin, Hans Ivers, Charles M Morin
OBJECTIVE: Stress and hyperarousal both contribute to insomnia. Elevated stress-related sleep reactivity is associated with hyperarousal, and might constitute a vulnerability to future insomnia. The present study examined acute stress-induced arousal and its association with nocturnal sleep. METHODS: Participants were 30 healthy adults (66.7% female, Mage = 26.7 years): 10 with insomnia (INS) and 20 good sleepers with high vulnerability (HV) or low vulnerability (LV) to insomnia...
December 2017: Sleep Medicine
https://www.readbyqxmd.com/read/29217599/ers-statement-on-obstructive-sleep-disordered-breathing-in-1-to-23-month-old-children
#13
Athanasios G Kaditis, Maria Luz Alonso Alvarez, An Boudewyns, Francois Abel, Emmanouel I Alexopoulos, Refika Ersu, Koen Joosten, Helena Larramona, Silvia Miano, Indra Narang, Hui-Leng Tan, Ha Trang, Marina Tsaoussoglou, Nele Vandenbussche, Maria Pia Villa, Dick Van Waardenburg, Silke Weber, Stijn Verhulst
The present statement was produced by a European Respiratory Society Task Force to summarise the evidence and current practice on the diagnosis and management of obstructive sleep disordered breathing (SDB) in children aged 1-23 months. A systematic literature search was completed and 159 articles were summarised to answer clinically relevant questions. SDB is suspected when symptoms or abnormalities related to upper airway obstruction are identified. Morbidity (pulmonary hypertension, growth delay, behavioural problems) and coexisting conditions (feeding difficulties, recurrent otitis media) may be present...
December 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29217205/increased-urinary-erythropoietin-excretion-in-severe-sleep-apnea-hipoapnea-syndrome-the-effect-of-cpap
#14
Miquel Félez, Nuria Grau, Antonia Ruiz, Encarna Guardiola, Carles Sanjuas, Cristina Estirado, Maribel Navarro-Muñoz, Antoni Pascual, Mauricio Orozco-Levi, Joaquim Gea
INTRODUCTION: Tissue hypoxia stimulates the production of erythropoietin (EPO), the main effect of which is, in turn, to stimulate erythropoiesis. Sleep apnea-hypopnea syndrome (SAHS) is an entity characterized by repeated episodes of hypoxemia during sleep. OBJECTIVE: To analyze whether hypoxemia stimulated increased urinary excretion of EPO, and if so, to evaluate if treatment with continuous positive airway pressure (CPAP) can inhibit this phenomenon. METHODS: We studied 25 subjects with suspected SAHS who underwent a polysomnography study (PSG)...
December 4, 2017: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/29216391/prevalence-and-determinants-of-rem-sleep-behavior-disorder-in-the-general-population
#15
José Haba-Rubio, Birgit Frauscher, Pedro Marques-Vidal, Jérôme Toriel, Nadia Tobback, Daniela Andries, Martin Preisig, Peter Vollenweider, Ronald Postuma, Raphaël Heinzer
Study Objectives: REM sleep behavior disorder (RBD) is a parasomnia associated with neurodegenerative synucleinopathies. Its prevalence is largely unknown. This study determined the prevalence and characteristics of RBD in the general population using gold-standard polysomnography. Methods: Full polysomnographic data from 1997 subjects (age=59±11.1 years, 53.6% women) participating in a population-based study (HypnoLaus, Lausanne, Switzerland) were collected. Sleep-related complaints and habits were investigated using various sleep measures including the Munich Parasomnia Screening (MUPS) questionnaire, which includes two questions evaluating complex motor behaviors suggestive of RBD...
December 5, 2017: Sleep
https://www.readbyqxmd.com/read/29215159/sleep-disorders-in-obese-children-are-not-limited-to-obstructive-sleep-apnoea-syndrome
#16
C Carriere, O Coste, M C Meiffred-Drouet, P Barat, H Thibault
AIM: This study was to characterised respiratory and non-respiratory sleep disorders in obese children and evaluated the diagnostic and therapeutic impact of a specific sleep consultation. METHODS: A descriptive study was conducted in obese French children who received multidisciplinary care management from the hospital centre for paediatric obesity in Bordeaux. This followed a specific sleep consultation between 2007 and 2015, because their paediatrician had identified symptoms suggestive of sleep disorders...
December 7, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/29214378/the-effectiveness-of-two-types-of-mads-for-osa-therapy
#17
Francis Emma Verburg, Klara Hilda Alphonsine Bollen, Henk-Jan Donker, Gerbrand Johannes Cornelis Kramer
OBJECTIVES: The purpose of this study was to determine differences in effectiveness between two types of mandibular advancement device (MAD). MATERIAL AND METHODS: In this retrospective, cohort study, the two devices used were MAD type "Somnodent-Flex" (MAD 1) and MAD type "Herbst" (MAD 2). One hundred thirty-seven patients participated in this study, 67 patients were treated with MAD 1, and 70 patients with MAD 2. The indication MAD with obstructive sleep apnea (OSA) is based on a polysomnography test, in accordance with the CBO guidelines...
December 6, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29214192/eeg-eog-emg-data-from-a-cross-sectional-study-on-psychophysiological-insomnia-and-normal-sleep-subjects
#18
Mohammad Rezaei, Hiwa Mohammadi, Habibolah Khazaie
The data presented here had been originally collected for a research project entitled 'Sleep EEG spectral analysis in psychophysiological insomnia and normal sleep subjects'. This article describes the data of 11 subjects, referred to Sleep Disorders Research Center (SDRC) in Kermanshah, Iran. The data includes 14 EEG, 6 EOG, and 3 EMG channels, with a sampling ratio of 256 Hz. It includes power spectral features in segments of 30 s for each channel, and nonlinear analysis parameter. Also, the complete demographic and polysomnography specifications are attached...
December 2017: Data in Brief
https://www.readbyqxmd.com/read/29205982/spasticity-or-periodic-limb-movements
#19
Jonathan Levy, Sarah Hartley, Elsa Mauruc-Soubirac, Antoine Leotard, Frederic Lofaso, Maria-Antonia Quera-Salva, Djamel Bensmail
BACKGROUND: Spasticity and spasms are distressing features of the upper motor neuron syndrome (UMNS) following spinal cord injuries (SCI) or multiple sclerosis (MS), and have common therapeutic implications. Despite an increase of antispastic drugs and strategies, sometimes up to the surgical implant of intrathecal baclofen pump, some patients still complain of disabling spasms, which poses diagnostic and therapeutic challenges. Although clinically similar, flexor spasms due to pyramidal tract disruption must be clearly differentiated from periodic limb movements (PLM), often accompanying restless leg syndrome (RLS) and occurring during sleep...
December 4, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/29205094/incidence-of-lingual-tonsil-hypertrophy-in-adults-with-and-without-obstructive-sleep-apnea
#20
Jessica A Tang, Michael Friedman
Objectives To characterize the incidence of lingual tonsil hypertrophy (LTH) in adults with and without obstructive sleep apnea (OSA) and to determine any potential correlation between them. Study Design Retrospective chart review. Setting Single-center database, September 2016 to April 2017. Subject and Methods Lingual tonsil grade (LTG) determined by awake endoscopy was collected as well as other physical examination findings, such as Friedman tongue position, palatine tonsil size, and neck circumference...
November 1, 2017: Otolaryngology—Head and Neck Surgery
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