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Sleep apnea syndrome

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https://www.readbyqxmd.com/read/28728251/-progress-of-dopamine-in-obstructive-sleep-apnea-hypopnea-syndrome
#1
Z Y Song, H L Yi
The etiology and pathogenesis of sleep obstructive apnea hypopnea syndrome (OSAHS) is not yet definitive, evidence shows that the dysfunction of pharyngeal nerve and the atonia of the muscle innervated by these nerve could play an important role in the progress of OSAHS. Dopamine is a neurotransmitter in the central nervous system which significantly affects the sleep-awake regulation. So far mounting evidence shows that dopamine has a potential role in the modulation of hypoglossal nucleus. The progress of dopamine in obstructive sleep apnea hypopnea syndrome is reviewed in this article...
July 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/28723745/evaluation-of-the-predictive-value-of-red-blood-cell-distribution-width-for-onset-of-cerebral-infarction-in-the-patients-with-obstructive-sleep-apnea-hypopnea-syndrome
#2
Chang-Xing Shen, Min Tan, Xiao-Lian Song, Shuan-Shuan Xie, Guo-Liang Zhang, Chang-Hui Wang
Red blood cell distribution width (RDW) is a risk factor for the complications caused by obstructive sleep apnea hypopnea syndrome (OSAHS). This study was aimed to evaluate the predictive value of RDW for the occurrence of cerebral infarction in patients with OSAHS.We conducted a prospective study of 129 consecutive patients who were admitted to the Sleep Laboratory of in the Tenth People's Hospital of Shanghai (China) with complaints of snoring, apnea, or daytime sleepiness. All patients underwent polysomnography between June 2011 and May 2012...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28717369/association-of-irritable-bowel-syndrome-and-sleep-apnea-in-patients-referred-to-sleep-laboratory
#3
Farzin Ghiasi, Babak Amra, Vahid Sebghatollahi, Fatemeh Azimian
BACKGROUND: Irritable bowel syndrome (IBS) is assumed as one of the most frequent gastrointestinal disorders, which decreases the patient's quality of life. IBS pathogenesis, however, is not clearly defined. It seems that sleep apnea induces or escalates IBS clinical symptoms. This study aims at evaluating of IBS prevalence in patients, who are afflicted or are not afflicted with sleep apnea. MATERIALS AND METHODS: This was a case-control study, which was implemented in a sleep laboratory located in Isfahan, Iran...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/28715584/reduced-retinal-vessel-density-in-obstructive-sleep-apnea-syndrome-patients-an-optical-coherence-tomography-angiography-study
#4
Jian Yu, Kuanlin Xiao, Jingjing Huang, Xinghuai Sun, Chunhui Jiang
Purpose: To examine the retinal vasculature in patients with obstructive sleep apnea-hypopnea syndrome (OSAS) and to determine the correlation between retinal vascularity and the severity of OSAS. Design: Prospective, cross-sectional study. Methods: Sixty-nine consecutive subjects who underwent polysomnography were enrolled. Patients were divided into three groups according to the severity of OSAS, which was defined using the apnea-hypopnea index (AHI) as normal-to-mild (AHI <15), moderate (≥15 to <30), or severe (≥30)...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28714612/weaning-from-long-term-continuous-positive-airway-pressure-or-noninvasive-ventilation-in-children
#5
Meriem Mastouri, Alessandro Amaddeo, Lucie Griffon, Annick Frapin, Samira Touil, Adriana Ramirez, Sonia Khirani, Brigitte Fauroux
OBJECTIVES: A significant number of children are able to discontinue long term continuous positive airway pressure (CPAP) or noninvasive ventilation (NIV) but the underlying disorders, weaning criteria, and outcome of these children have not been studied. STUDY DESIGN: Retrospective cohort follow up. SUBJECT SELECTION: Consecutive children who were weaned from long term CPAP/NIV between October 2013 and January 2016. METHODOLOGY: Underlying disorders, weaning criteria, and clinical outcome were analyzed...
July 17, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28711234/sleep-related-breathing-disorders-and-indications-for-polysomnography-in-preterm-infants
#6
Koen Joosten, Robbin de Goederen, Angelique Pijpers, Karel Allegaert
There is a range of breathing problems which occur and may persist in preterm infants, such as central apneas, obstructive apneas and periodic breathing. Preterm infants may also suffer from respiratory distress syndrome and chronic lung disease necessitating prolonged use of oxygen therapy after discharge from the hospital. Due to these persistent breathing pattern abnormalities in preterm infants, there is a higher risk of altered sleep and apparent life threatening events. Polysomnography can be a helpful tool to identify those infants who have abnormalities in their breathing pattern, to identify those infants who have an increased risk to get a sleep related breathing event at home and to decide about the discontinuation of oxygen therapy...
July 12, 2017: Early Human Development
https://www.readbyqxmd.com/read/28705405/-sleep-apnea-syndrome-and-abdominal-aortic-aneurysm-study-of-the-prevalence-of-sleep-apnea-syndrome-in-patients-with-aneurysm-and-research-of-association-clinical-study-on-52%C3%A2-patients
#7
J Hernigou, B Dakhil, L Belmont, J C Couffinhal, P Bagan
OBJECTIVES: Prevalence of abdominal aortic aneurysms (AAA) in Europe is between 4.1 % and 8.9 %. The risk of rupture of AAA is related to the evolution of its diameter. The role of sleep apnea (SA) remains still discussed. The objective of this study was to study the prevalence of SA in patients presenting with AAA in comparison with the general population as well as the relation between the AAA diameter and the severity of SA. MATERIALS AND METHODS: Between June 2012 and December 2014, we included all patients referred for surgical treatment of an AAA...
May 2017: J Med Vasc
https://www.readbyqxmd.com/read/28702829/severe-obstructive-sleep-apnea-treatment-with-oral-appliance-the-impact-on-obstructive-central-and-mixed-events
#8
Maria de Lourdes Rabelo Guimarães, Ana Paula Hermont, Pedro Guimarães de Azevedo, Poliana Lima Bastos, Millena Teles Portela de Oliveira, Iracema Matos de Melo, Guilherme Salles Ottoboni, Gabriela Vedolin, Jorge Machado Caram
PURPOSE: The aim of this study is to evaluate the effectiveness of two types of oral appliance (OA) in the treatment of severe obstructive sleep apnea syndrome (OSAS) and their impact on the reduction of obstructive, central and mixed apneas. METHODS: Forty-eight patients suffering from severe OSAS with a history of non-adherence to positive airway pressure therapy were treated with OA (lingual orthosis and combined orthosis). Polysomnography exams were performed before and after treatment...
July 12, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28701993/no-impaired-glucose-tolerance-in-primary-insomnia-patients-with-normal-results-of-polysomnography
#9
Johanna Tschepp, Christoph J Lauer, Johanna Wilde-Frenz, Thomas Pollmächer
BACKGROUND: According to recent studies, sleep restriction and disruption both have a prominent negative influence on glucose metabolism. This could also be shown in sleep disorders, such as sleep apnea and the restless legs syndrome. However, similar studies regarding insomnia have not been that consistent, yet. Moreover, most previous studies did not include objective polysomnography (PSG) data. METHODS: Patients with primary insomnia (N = 17) and healthy controls (N = 15) were investigated using psychometric tests such as the Epworth Sleepiness Scale and the Pittsburgh sleep quality index (PSQI)...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28700954/cognitive-and-motor-reaction-times-in-obstructive-sleep-apnea-syndrome-a-study-based-on-computerized-measures
#10
Maria Devita, Sonia Montemurro, Andrea Zangrossi, Sara Ramponi, Maurizio Marvisi, Daniele Villani, Maria Clara Raimondi, Paola Merlo, Maria Luisa Rusconi, Sara Mondini
Obstructive Sleep Apnea Syndrome (OSAS) is mainly associated with executive dysfunction. Although delayed reaction times (RTs) in patients with OSAS have been reported, sensitivity of processing speed has not been adequately assessed. This study suggests sensitive and reliable measures to clarify whether different components of information processing speed, i.e. cognitive and motor responses, are equally impaired in OSAS. Thirty-three patients with OSAS were compared with thirty healthy controls. The MoCA test was administered to assess participants' global neuropsychological profile...
July 9, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28698543/genistein-protects-genioglossus-myoblast-against-hypoxia-induced-injury-through-pi3k-akt-and-erk-mapk-pathways
#11
Wanghui Ding, Xiaoyan Chen, Wen Li, Zhen Fu, Jiejun Shi
Obstructive sleep apnea and hypopnea syndrome (OSAHS) is a clinical syndrome characterized by recurrent episodes of obstruction of the upper airway during sleep that leads to a hypoxic condition. Genioglossus, an important pharyngeal muscle, plays an important role in maintaining an open upper airway for effective breathing. Our previous study found that genistein (a kind of phytoestrogen) protects genioglossus muscle from hypoxia-induced oxidative injury. However, the underlying mechanism is still unknown...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28698424/-aortic-valve-replacement-via-a-partial-sternotomy-in-an-ankylosing-skeletal-hyperostosis-patient-after-prophylactic-tracheostomy-report-of-a-case
#12
Shogo Saito, Yoshio Misawa, Soki Kurumisawa, Kei Aizawa, Koji Kawahito
A 77-year-old man presented with exertional dyspnea. The patient had a history of ankylosing skeletal hyperostosis and sleep apnea syndrome. Echocardiographic examination revealed severe aortic valve regurgitation. The patient underwent a prophylactic tracheostomy 2 weeks before cardiac surgery to decrease his risk of perioperative respiratory failure. He successfully underwent aortic valve replacement through a lower partial sternotomy. His postoperative course was uneventful, and the tracheostoma was closed 6 months after the cardiac surgery...
July 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28697968/update-on-pathophysiology-and-treatment-of-childhood-obstructive-sleep-apnea-syndrome
#13
REVIEW
Justin C Brockbank
Obstructive sleep apnea syndrome (OSAS) is common in childhood and is characterized by recurrent upper airway obstructive events during sleep that produce significant neurocognitive and cardiovascular sequelae. The pathophysiology of childhood OSAS is complex and involves mechanical airway obstruction often secondary to adenotonsillar hypertrophy. However, neuromotor abnormalities and instability of central ventilatory control are also implicated. Several surgical and non-surgical treatment options for childhood OSAS are available, and will be discussed...
June 12, 2017: Paediatric Respiratory Reviews
https://www.readbyqxmd.com/read/28697252/association-of-positive-airway-pressure-with-cardiovascular-events-and-death-in-adults-with-sleep-apnea-a-systematic-review-and-meta-analysis
#14
REVIEW
Jie Yu, Zien Zhou, R Doug McEvoy, Craig S Anderson, Anthony Rodgers, Vlado Perkovic, Bruce Neal
Importance: Sleep apnea (obstructive and central) is associated with adverse cardiovascular risk factors and increased risks of cardiovascular disease. Positive airway pressure (PAP) provides symptomatic relief, whether delivered continuously (CPAP) or as adaptive servo-ventilation (ASV), but the associations with cardiovascular outcomes and death are unclear. Objective: To assess the association of PAP vs control with cardiovascular events and death in patients with sleep apnea...
July 11, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28696497/role-of-ca2-and-ion-channels-in-the-regulation-of-apoptosis-under-hypoxia
#15
REVIEW
Miaohong Wang, Jin Tan, Yuyang Miao, Mengmeng Li, Qiang Zhang
Hypoxia is a kind of common pathological condition existing in various diseases such as sleep apnea syndrome, myocardial infarction and stroke, which can precipitate the onset of diseases through inducing cell apoptosis. Ca²⁺ is the ubiquitous message in cell. Given the crucial role of Ca2²⁺ in physiology, intracellular Ca²⁺ overload is a significant regulator of apoptosis. Numerous experiments show that hypoxia may cause changes of multiple cellular Ca²⁺ channels, for instance, Na⁺/ Ca²⁺ Exchanger (NCX), L-type voltage dependent Ca²⁺ channel (L-VDCC), inositol triphosphate receptors (IP3R) and so on, which contribute to intracellular Ca²⁺ overload, thus eventually triggering cell apoptosis...
July 11, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28694199/initiation-of-non-invasive-ventilation-for-sleep-related-hypoventilation-disorders-advanced-modes-and-devices
#16
REVIEW
Bernardo J Selim, Lisa Wolfe, John M Coleman, Naresh Dewan
Although non-invasive ventilation (NIV) has been used since the 1960's in the polio epidemic, the development of modern bilevel PAP devices did not become a reality until the 1990's. Over the last 25 years bilevel PAP technology options have exponentially increased. The number of patients receiving this treatment both in the acute setting as well as at home is steadily growing. However, a knowledge gap exists in the way these device settings are adjusted to achieve synchrony and match patient's unique respiratory failure physiology...
July 7, 2017: Chest
https://www.readbyqxmd.com/read/28692165/clinical-and-prognostic-significance-of-a-reverse-dipping-pattern-on-ambulatory-monitoring-an-updated-review
#17
REVIEW
Cesare Cuspidi, Carla Sala, Marijana Tadic, Elisa Gherbesi, Antonio De Giorgi, Guido Grassi, Giuseppe Mancia
Reverse or inverted dipping (ie, the phenomenon characterized by higher nighttime compared with daytime blood pressure values) is an alteration of circadian blood pressure rhythm frequently documented in hypertension, type 2 diabetes mellitus, chronic kidney disease, and sleep apnea syndrome, and generally regarded as a harmful condition. Available literature on the clinical and prognostic implications of reverse dipping is scanty. The present article will review a number of relevant issues concerning reverse dipping, in particular: (1) its possible mechanisms; (2) prevalence and clinical correlates, (3) concomitant cardiac and extracardiac subclinical organ damage; (4) association with acute and chronic cardiovascular diseases; (5) prognostic value in predicting cardiovascular events and mortality; and (6) therapeutic interventions aimed at reverting this abnormal circadian blood pressure rhythm...
July 2017: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/28691036/detection-of-secondary-causes-and-coexisting-diseases-in-hypertensive-patients-osa-and-pa-are-the-common-causes-associated-with-hypertension
#18
Lei Wang, Nanfang Li, Xiaoguang Yao, Guijuan Chang, Delian Zhang, Mulalibieke Heizhati, Menghui Wang, Qin Luo, Jianqiong Kong
BACKGROUND: Since the control rate of blood pressure is lower in mainland China, the aim of this study is to investigate the proportion of secondary causes and coexisting diseases of hypertension in hypertensive patients. METHODS: Data on consecutive patients with hypertension who visited the Hypertension Center. Diseases were detected using an established strict screening protocol. RESULTS: Detection rate of secondary causes and coexisting diseases of hypertension was 39...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28685797/impact-of-obstructive-sleep-apnea-on-the-right-ventricle
#19
Lilia Zakhama, Besma Herbegue, Maher Abouda, Saoussen Antit, Iskander Slama, Elhem Boussabah, Moez Thameur, Mourad Masmoudi, Nabil Abdelaali, Mohamed Ridha Charfi, Soraya Ben Youssef
BACKGROUND: Right ventricular (RV) involvement in obstructive sleep apnea syndrome (OAS) is controversial. The aim of this study was to determine a correlation between echocardiographic parameters of RV function and severity of OSA assessed by the apnea- hypopnea index (AHI). METHODS: Sixty patients with suspected OSA were enrolled. All patients had overnight polygraphy and an echocardiographic assessment of RV structure and function. Patients were divided into three groups: a control group (n=20) with an AHI<5/h, a group of mild to moderate OSA (n=18) with an AHI=5-30/h and a group of severe OSA (n=22) with AHI≥30/h...
October 2016: La Tunisie Médicale
https://www.readbyqxmd.com/read/28683800/prevalence-and-risk-factors-of-moderate-to-severe-obstructive-sleep-apnea-syndrome-in-insomnia-sufferers-a-study-on-1311-subjects
#20
Matthieu Hein, Jean-Pol Lanquart, Gwénolé Loas, Philippe Hubain, Paul Linkowski
BACKGROUND: Several studies have investigated the prevalence and risk factors of insomnia in subjects with obstructive sleep apnea syndrome. However, few studies have investigated the prevalence and risk factors for obstructive sleep apnea syndrome in insomnia sufferers. Thus, the aim of this study was to examine the prevalence and risk factors of moderate to severe obstructive sleep apnea syndrome in a large sample of insomnia sufferers. METHODS: Data from 1311 insomnia sufferers who were recruited from the research database of the sleep laboratory of the Erasme Hospital were analysed...
July 6, 2017: Respiratory Research
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