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https://www.readbyqxmd.com/read/28433385/perioperative-risks-of-narcolepsy-in-patients-undergoing-general-anesthesia-a-case-control-study
#1
Alexandre N Cavalcante, Ryan E Hofer, Maja Tippmann-Peikert, Juraj Sprung, Toby N Weingarten
STUDY OBJECTIVE: To compare the perioperative outcomes between patients with narcolepsy and matched controls undergoing anesthetic management. DESIGN: Retrospective 2:1 matched study design. SETTING: Large tertiary medical center. PATIENTS: Narcoleptic patients who underwent general anesthesia from January 1, 2011, through September 30, 2015, were matched with controls by age, sex, and type and year of surgery. MEASUREMENTS: Medical records were reviewed for episodes of respiratory depression during phase I recovery and for other meaningful perioperative outcomes...
April 19, 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28432036/increased-inflammation-from-childhood-to-adolescence-predicts-sleep-apnea-in-boys-a-preliminary-study
#2
Jordan Gaines, Alexandros N Vgontzas, Julio Fernandez-Mendoza, Fan He, Susan L Calhoun, Duanping Liao, Edward O Bixler
While chronic systemic inflammation in obstructive sleep apnea (OSA) has been traditionally considered a consequence of intermittent hypoxia, several treatment studies targeting inflammation suggest that this process may precede the development of the disorder. A recent cross-sectional study in the Penn State Child Cohort (PSCC) revealed that inflammation largely mediates the association between visceral adiposity and OSA in adolescence. The purpose of this study was to examine for the first time whether, longitudinally, inflammation precedes OSA during this developmental period...
April 18, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28431823/sleepiness-and-activity-in-heart-failure-patients-with-reduced-ejection-fraction-and-central-sleep-disordered-breathing
#3
Angela Atalla, Thomas W Carlisle, Anita K Simonds, Martin R Cowie, Mary J Morrell
OBJECTIVE: Patients with heart failure (HF) and sleep disordered breathing (SDB) are typically not sleepy, unlike patients without heart failure. Previous work in HF patients with obstructive SDB suggested that sleepiness was associated with a reduction in daytime activity. The consequences of predominately central SDB on sleepiness in HF are less well understood. The aim of this study was to test the hypothesis that subjective sleepiness is associated with reduced daytime activity in HF patients with central SDB, compared to those without SDB...
January 23, 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28427400/monitoring-mandibular-movements-to-detect-cheyne-stokes-breathing
#4
Jean-Benoît Martinot, Jean-Christian Borel, Nhat-Nam Le-Dong, Hervé Jean-Pierre Guénard, Valerie Cuthbert, Philip E Silkoff, David Gozal, Jean-Louis Pepin
BACKGROUND: The patterns of mandibular movements (MM) during sleep can be used to identify increased respiratory effort periodic large-amplitude MM (LPM), and cortical arousals associated with "sharp" large-amplitude MM (SPM). We hypothesized that Cheyne Stokes breathing (CSB) may be identified by periodic abnormal MM patterns. The present study aims to evaluate prospectively the concordance between CSB detected by periodic MM and polysomnography (PSG) as gold-standard. The present study aims to evaluate prospectively the concordance between CSB detected by periodic MM and polysomnography (PSG) as gold-standard...
April 20, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28425082/discriminating-between-positional-and-non-positional-obstructive-sleep-apnea-using-some-clinical-characteristics
#5
Abderrahim Oulhaj, Sharina Al Dhaheri, Brenda Bin Su, Mohammed Al-Houqani
PURPOSE: The primary objective of this paper was to identify significant factors associated with positional Obstructive Sleep Apnea (POSA) and to provide a clinical tool for discriminating non positional from POSA. Secondary objectives were about estimating the prevalence of POSA, comparing the polysomnographic variables across POSA and non-POSA patients. METHODS: This was a cross sectional study on 278 patients who completed an overnight sleep study for OSA assessment...
April 19, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28421375/obstructive-sleep-apnea-increases-the-risk-of-cardiac-events-after-percutaneous-coronary-intervention-a-meta-analysis-of-prospective-cohort-studies
#6
REVIEW
Hua Qu, Ming Guo, Ying Zhang, Da-Zhuo Shi
PURPOSE: Recent studies have shown an association between obstructive sleep apnea (OSA) and coronary artery disease; however, the association between OSA and cardiac outcomes in patients after percutaneous coronary intervention (PCI) remains undetermined. METHODS: PubMed, EMBASE, and CENTRAL were searched from inception to July 2016 for cohort studies that followed up with patients after PCI, and evaluated their overnight sleep patterns within 1 month for major adverse cardiac events (MACEs) as primary outcomes including cardiac death, non-fatal myocardial infarction (MI), and coronary revascularization and secondary outcomes including re-admission for heart failure and stroke...
April 18, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28417254/whom-are-we-treating-with-adaptive-servo-ventilation-a-clinical-post-hoc-analysis
#7
Maximilian V Malfertheiner, C Lerzer, L Kolb, K Heider, F Zeman, F Gfüllner, L S Maier, M Pfeifer, M Arzt
BACKGROUND: Recent evidence has shown that adaptive servo-ventilation (ASV) is contraindicated in patients with predominant central sleep apnea (CSA) and reduced left ventricular ejection fraction (LVEF ≤45%). The objective of this study was to assess the clinical usage of ASV in patients at the time-point of the release of a safety warning by type of SDB, breathing pattern and LVEF. METHODS: Patients of a cardiac and a respirology sleep center, both in Germany, who received ASV therapy were contacted between May and October 2015...
April 17, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28410878/efficacy-of-laronidase-therapy-in-patients-with-mucopolysaccharidosis-type-i-who-initiated-enzyme-replacement-therapy-in-adult-age-a-systematic-review-and-meta-analysis
#8
Jordi Pérez-López, Montserrat Morales-Conejo, Mónica López-Rodríguez, Álvaro Hermida-Ameijeiras, Marc Moltó-Abad
BACKGROUND: The efficacy of starting enzyme replacement therapy (ERT) in adults with Muchopolysaccharidosis Type I (MPS-I) is controversial. Evaluating the benefits reported by patients initiating ERT with laronidase at adult age might help physicians decide whether the use of ERT in these patients is worthwhile from a clinical point of view. OBJECTIVE: To assess every effectiveness variable modified in MPS-I patients who initiated laronidase at adult age. METHODS: A systematic search of the literature, from inception to July 2016, was conducted using MEDLINE, EMBASE, CENTRAL and LILACS to identify randomized trials or observational studies including ≥1 MPS-I patients with ERT initiated in adult age (≥18years) and evaluating ERT efficacy...
April 9, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/28408696/assessment-of-tongue-mechanical-properties-using-different-contraction-tasks
#9
Wen-Yang Li, Simon Gakwaya, Didier Saey, Frédéric Sériès
Inadequate UA dilator muscle function may play an important role in the pathophysiology of obstructive sleep apnea (OSA). To date, tongue mechanical properties have been mainly assessed using protrusion protocol with conflicting results, while performance during elevation task among patients with OSA remains unknown. This study was aimed to assess tongue muscle strength, strength stability, endurance time, fatigue indices and muscle total work, using elevation and protrusion tasks with repetitive isometric fatiguing contractions during awake in 12 normal+mild, 17 moderate and 11 severe patients with OSA, and to assess the influence of BMI and age...
April 13, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28395495/-characteristics-of-sleep-apnea-events-in-non-snoring-children
#10
Z F Xu, X D Li, Y X Wu, J Tai, Y M Zhang, X X Peng, L Zheng, J Shi, X Ni
Objective: To investigate the characteristics of sleep-related respiratory events in normal children and to provide normal polysomnographic parameters for diagnosing sleep-disordered breathing in children. Methods: Normal subjects between 3 and 14 years old were enrolled from 1 July 2014 to 31 December 2015 and the subjects received overnight polysomnography at the sleep center of our hospital. They were children of our hospital employees or were recruited from the communities who did not have sleep and respiratory disorders...
March 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28395403/-distribution-of-electroencephalograph-power-density-in-patients-with-severe-obstructive-sleep-apnea-during-different-sleep-stages
#11
Y Deng, X Tian, B Y Chen, N Zhou, M Xia, W W Bai, M M Dou, X Y Liu
Objective: To investigate the variation of electroencephalograph(EEG) power density during different sleep stages in OSA for understanding of the mechanisms underlying the brain dysfunction in OSA as well as its earlier diagnosis and treatment. Methods: Sixteen-channel EEGs from OSA patients and normal controls in stage wake, sleep stage 1, sleep stage 2, sleep stage 3 and rapid eye movement stage were analyzed by time-frequency analysis method. The EEG power density in different frequency bands (including δ, θ, α, σ, β and γ) was respectively compared between the 2 groups...
April 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28389695/effects-of-low-temperature-on-breathing-pattern-and-ventilatory-responses-during-hibernation-in-the-golden-mantled-ground-squirrel
#12
Cheryl L Webb, William K Milsom
During entrance into hibernation in golden-mantled ground squirrels (Callospermophilus lateralis), ventilation decreases as metabolic rate and body temperature fall. Two patterns of respiration occur during deep hibernation. At 7 °C body temperature (T b ), a breathing pattern characterized by episodes of multiple breaths (20.6 ± 1.9 breaths/episode) separated by long apneas or nonventilatory periods (T nvp ) (mean = 11.1 ± 1.2 min) occurs, while at 4 °C T b , a pattern in which breaths are evenly distributed and separated by a relatively short T nvp (0...
April 7, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28382434/evaluation-of-the-central-sleep-apnea-in-asymptomatic-children-with-chiari-1-malformation-an-open-question
#13
Marco Zaffanello, Francesco Sala, Luca Sacchetto, Emma Gasperi, Giorgio Piacentini
INTRODUCTION: Type I is the most common Chiari malformation in children. In this condition, the lower part of the cerebellum, but not the brain stem, extends into the foramen magnum at the base of the skull leading to intermittent brain hypertension. In symptomatic children, central sleep apneas are shown in polysomnography evaluation. A central apnea index of 1/h or more is considered abnormal, but >5/h is clearly considered pathological. Therefore, central sleep apnea evaluation in pediatric age may show great age-related variability...
April 5, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28380133/association-between-obstructive-sleep-apnea-and-myocardial-infarction-a-systematic-review
#14
Fernanda Porto, Yuri Saho Sakamoto, Cristina Salles
Obstructive sleep apnea (OSA) has been associated to cardiovascular risk factors. However, the association between OSA and cardiovascular disease is still controversial. The objective of the present study was to verify the association between OSA and myocardial infarction (MI). This is a systematic review of the literature performed through electronic data sources MEDLINE/PubMed, PubMed Central, Web of Science and BVS -Biblioteca Virtual em Saúde (Virtual Health Library). The descriptors used were: 'obstructive sleep apnea' AND 'polysomnography' AND 'myocardial infarction' AND 'adults NOT 'treatment...
March 30, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28376734/sleep-apnea-prevalence-in-chronic-kidney-disease-association-with-total-body-water-and-symptoms
#15
Hsin-Chia Huang, Giles Walters, Girish Talaulikar, Derek Figurski, Annette Carroll, Mark Hurwitz, Krishna Karpe, Richard Singer
BACKGROUND: Sleep apnea is common and associated with poor outcome in severe chronic kidney disease, but validated screening tools are not available. Our objectives were to determine the prevalence of sleep apnea in this population, to assess the validity of screening for sleep apnea using an ApneaLink device and to investigate the relationship of sleep apnea to; symptoms, spirometry and body water. METHODS: Patients with glomerular filtration rate ≤30 mL/min/1...
April 4, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28372949/sleep-disordered-breathing-in-neuromuscular-disease-diagnostic-and-therapeutic-challenges
#16
REVIEW
Loutfi S Aboussouan, Eduardo Mireles-Cabodevila
Normal sleep related rapid eye movement sleep atonia, reduced lung volumes, reduced chemosensitivity, and impaired airway dilator activity, become significant vulnerabilities in the setting of neuromuscular disease. In that context, the compounding effects of respiratory muscle weakness and disease-specific features that promote upper airway collapse or cause dilated cardiomyopathy, contribute to various sleep-disordered breathing events. The reduction in lung volumes with neuromuscular disease is further compromised by sleep and the supine position, exaggerating the tendency for upper airway collapse and desaturation with sleep-disordered breathing events...
March 31, 2017: Chest
https://www.readbyqxmd.com/read/28364570/excessive-fragmentary-myoclonus-what-do-we-know
#17
REVIEW
Jiří Nepožitek, Karel Šonka
Excessive fragmentary myoclonus (EFM) is a polysomnographic finding registered by the surface electromyography (EMG) and characterized as a result of the muscle activity consisting of sudden, isolated, arrhythmic, asynchronous and asymmetric brief twitches. The EMG potentials are defined by the exact criteria in The International Classification of the Sleep Disorders, 3rd edition and they appear with high intensity in all sleep stages. Clinical significance of EFM is unclear. It was observed in combination with other diseases and features such as obstructive and central sleep apnea, narcolepsy, periodic limb movements, insomnia, neurodegenerative disorders and peripheral nerve dysfunction...
2017: Prague Medical Report
https://www.readbyqxmd.com/read/28364431/validation-of-the-sonomat-against-psg-and-quantitative-measurement-of-partial-upper-airway-obstruction-in-children-with-sleep-disordered-breathing
#18
Mark B Norman, Sonia M Pithers, Arthur Y Teng, Karen A Waters, Colin E Sullivan
Study Objectives: To validate the Sonomat against polysomnography (PSG) metrics in children and to objectively measure snoring and stertor to produce a quantitative indicator of partial upper airway obstruction that accurately reflects the pathology of pediatric sleep-disordered breathing (SDB). Methods: Simultaneous PSG and Sonomat recordings were performed in 76 children (46 male, age 5.8 ± 2.8, BMI = 18.5 ± 3.8 kg/m2). Sleep time, individual respiratory events and the apnea/hypopnea index (AHI) were compared...
March 1, 2017: Sleep
https://www.readbyqxmd.com/read/28358591/central-sleep-apnea-and-stiff-person-syndrome-a-case-report
#19
Marie Netchitaïlo, Jacques Senant, Florence Portier, Catherine Tardif
No abstract text is available yet for this article.
March 30, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28355752/-incidence-and-influencing-factors-of-continuous-positive-airway-pressure-treatment-emergent-central-sleep-apnea-in-the-patients-with-obstructive-sleep-apnea-syndrome-at-high-altitude
#20
Z B Miao, Y Y Wang, R Sun, H L Lei, D J Huang, L H Huang, C Y Fan, Y H Lü
Objective: To investigate the incidence of treatment-emergent central sleep apnea (TE-CSA), the characteristics of demography and the influencing factors in patients with obstructive sleep apnea syndrome (OSAS) after initial continuous positive airway pressure (CPAP) titration at high altitude. Methods: Clinical data of 297 patients with OSAS which living in plateau areas (1 000 meters or more above sea level) were retrospectively analyzed in this study from January to December, 2015. All of these patients taken an overnight CPAP titration in the Sleep Medicine Center of First People's Hospital of Yunnan Province...
March 28, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
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