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https://www.readbyqxmd.com/read/28548301/night-to-night-variability-of-obstructive-sleep-apnea
#1
Anna S Stöberl, Esther I Schwarz, Sarah R Haile, Christopher D Turnbull, Valentina A Rossi, John R Stradling, Malcolm Kohler
One night of a sleep study is the standard for diagnosis and exclusion of obstructive sleep apnea. Single testing requires high sensitivity of the test method and a stable disease of interest to warrant a low rate of false-negative tests. Obstructive sleep apnea is diagnosed and graded by conventional thresholds of apneas and hypopneas per hour of sleep, and treatment is usually initiated in the presence of symptoms. The aim of this study was to assess night-to-night variability of obstructive sleep apnea to reassess the current practice...
May 26, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28546036/relationship-between-various-anthropometric-measures-and-apnea-hypopnea-index-in-korean-men
#2
Jeong-Hong Kim, Yong Cheol Koo, Hyung Ju Cho, Ju Wan Kang
OBJECTIVE: Body mass index (BMI) has been shown to be strongly correlated with severity of OSA. However, BMI has not been shown to be correlated with sleep apnea in all patients studied. The purpose of this study was to evaluate the relationship between various anthropometric measures and severity of OSA according to BMI in men. METHODS: We conducted a retrospective analysis of the medical records of patients who visited for evaluation of OSA. Polysomnography results, height, weight, neck circumference, waist circumference, and hip circumference were obtained in all subjects...
May 22, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28544488/obstructive-sleep-apnea-in-down-syndrome-benefits-of-surgery-and-noninvasive-respiratory-support
#3
Benjamin Dudoignon, Alessandro Amaddeo, Annick Frapin, Briac Thierry, Livio de Sanctis, Jorge Olmo Arroyo, Sonia Khirani, Brigitte Fauroux
Children with Down syndrome are at increased risk of obstructive sleep apnea (OSA). The aim of the study was to describe the management of OSA in a large cohort of children with Down syndrome. A retrospective analysis of sleep studies and consequent management was performed for all consecutive Down syndrome patients evaluated between September 2013 and April 2016. The data of 57 patients were analyzed: 51/53 had an interpretable overnight polygraphy and 4 the recording of nocturnal gas exchange. Mean age at baseline sleep study was 6...
May 24, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28542657/-polygraphy-in-hospitalized-children-under-3-months
#4
Daniel Zenteno, Iván Rodríguez-Núñez, Ignacio Molina, Rubén Peña, Carla Rivas, Jaime Tapia, Pablo Brockmann
Apnea and apparently lethal events have great etiological diversity thus complementary tests may help diagnosis. The aim of this study was to describe the results of polygraph studies of children under 3 months hospitalized with suspected apnea. PATIENTS AND METHODS: Retrospective case series. Children under 3 months with suspected apnea were considered and in whom a polygraphy (PG) was performed during hospitalization. General data, the apnea/hypopnea index (AHI), index of central. apnea, obstructive apnea index, average and minimum saturation were recorded...
April 2017: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/28531336/loop-gain-predicts-the-response-to-upper-airway-surgery-in-patients-with-obstructive-sleep-apnoea-ventilatory-control-abnormalities-predict-surgical-responsiveness
#5
Simon A Joosten, Paul Leong, Shane A Landry, Scott A Sands, Philip I Terrill, Dwayne Mann, Anthony Turton, Jhanavi Rangaswamy, Christopher Andara, Glen Burgess, Darren Mansfield, Garun S Hamilton, Bradley A Edwards
Study Objectives: Upper airway surgery is often recommended to treat OSA patients who cannot tolerate continuous positive airways pressure (CPAP). However, the response to surgery is variable, potentially because it does not improve the non-anatomical factors (i.e. loop gain and arousal threshold) causing OSA. Measuring these traits clinically might predict responses to surgery. Our primary objective was to test the value of loop gain and arousal threshold to predict surgical success defined as 50% reduction in apnea-hypopnea index (AHI) and AHI <10 events/hr post-surgery...
May 22, 2017: Sleep
https://www.readbyqxmd.com/read/28526655/digital-morphometrics-a-new-upper-airway-phenotyping-paradigm-in-obstructive-sleep-apnea
#6
Richard J Schwab, Sarah E Leinwand, Cary B Bearn, Greg Maislin, Ramya Bhat Rao, Adithya Nagaraja, Stephen Wang, Brendan T Keenan
BACKGROUND: Obstructive sleep apnea (OSA) is associated with changes in pharyngeal anatomy. The goal of this study was to objectively and reproducibly quantify pharyngeal anatomy using digital morphometrics based on a laser ruler, and to assess differences between apneics and controls and associations with AHI (apnea-hypopnea index). This is the first study to use digital morphometrics to quantify intraoral risk factors for OSA. METHODS: Digital photographs were obtained using an intraoral laser ruler and digital camera in 311 controls (mean AHI=4...
May 16, 2017: Chest
https://www.readbyqxmd.com/read/28526545/obstructive-sleep-apnoea-and-right-ventricular-function-a-combined-assessment-by-speckle-tracking-and-three-dimensional-echocardiography
#7
Agostino Buonauro, Maurizio Galderisi, Ciro Santoro, Angelo Canora, Maria Luisa Bocchino, Francesco Lo Iudice, Maria Lembo, Roberta Esposito, Sabrina Castaldo, Bruno Trimarco, Alessandro Sanduzzi
BACKGROUND: Little is known on right ventricular (RV) involvement in obstructive sleep apnoea (OSA). This study aimed at evaluating early RV dysfunction by standard and advanced echocardiography in OSA. METHODS: Fifty-nine OSA patients without heart failure and 29 age-matched controls underwent standard, speckle tracking and real time 3D echocardiography of right ventricle. OSA patients performed lung function tests and overnight cardio-respiratory monitoring with evaluation of apnea-hypopnea index (AHI)...
May 4, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28522150/implementation-of-a-wearable-ultrasound-device-for-the-overnight-monitoring-of-tongue-base-deformation-during-obstructive-sleep-apnea-events
#8
Chi-Kai Weng, Jeng-Wen Chen, Po-Yang Lee, Chih-Chung Huang
Obstructive sleep apnea (OSA) is a breathing disorder characterized by the repeated collapse of the pharyngeal airway during sleep. Previous studies have reported that tongue base deformation may be a major contributing factor. However, overnight monitoring of tongue motion in patients with OSA has previously been impracticable. We developed a wearable ultrasound device for prolonged recording during natural sleep of the changes in tongue base thickness (TBT) in patients with OSA. The maximum TBT was fed into a polysomnography system so that physiologic signals and TBT data were simultaneously monitored...
May 15, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28522100/pulse-wave-amplitude-reduction-as-a-surrogate-for-cortical-arousal-during-sleep-hypopnea-in-children
#9
Alessandro Amaddeo, Noria Medjahdi, Marta Fernandez-Bolanos, Sonia Khirani, Guillaume Baffet, Brigitte Fauroux
OBJECTIVES: The accuracy of respiratory polygraphy (RP) is limited because of the absence of electroencephalography (EEG). Pulse wave amplitude (PWA) reduction has been shown to be a marker of autonomic activation during arousal, and may represent a substitute for obstructive respiratory-related cortical arousal (RRCA). This study tested the hypothesis that PWA could be a surrogate for RRCA in detecting obstructive hypopnea (OH) in a pediatric population. MATERIALS AND METHODS: Two experienced readers scored 30 consecutive polysomnographies (PSG) using standard scoring rules...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28522098/study-of-association-of-severity-of-sleep-disordered-breathing-and-functional-outcome-in-stroke-patients
#10
Rohit Kumar, J C Suri, Rajesh Manocha
OBJECTIVE: Sleep disordered breathing (SDB) is a prevalent yet underrecognized condition that may have major adverse consequences for those affected by it. We performed a prospective observational study to seek a correlation of severity of SDB with the severity of stroke and its functional outcome. METHODS: Patients with history of recent-onset stroke were recruited and underwent overnight polysomnography (PSG) after the acute phase of the stroke was over; for defining hypopneas, 3% and 4% desaturation limits were used, and the apnea-hypopnea index was respectively calculated as AHI3% and AHI4%...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28522090/hearing-loss-mediates-executive-function-impairment-in-sleep-disordered-breathing
#11
Catherine M Hill, Romola S Bucks, Colin R Kennedy, Dawn Harrison, Annette Carroll, Nicolas Upton, Alexandra M Hogan
BACKGROUND: Sleep-disordered breathing (SDB) is often co-morbid with conductive hearing loss in early childhood due to a shared aetiology of adenotonsillar hypertrophy. Hearing loss is independently associated with impairment of executive function and behavioural difficulties. We hypothesised that these impairments in children with SDB may be mediated through hearing loss. METHODS: Fifty-eight children including 37 snorers awaiting adenotonsillectomy and 21 healthy non-snoring controls, aged 3-5 years, were assessed with pure tone audiometry, Strengths and Difficulties (SDQ), Behaviour Rating of Executive Function (BRIEF-P), and Childhood Middle Ear Disease and Hearing questionnaires...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28522088/frequency-of-snoring-rather-than-apnea-hypopnea-index-predicts-both-cognitive-and-behavioral-problems-in-young-children
#12
Dale L Smith, David Gozal, Scott J Hunter, Leila Kheirandish-Gozal
OBJECTIVE: Primary snoring (PS) and obstructive sleep apnea (OSA) not only affect the quality of sleep in a large number of young children, but have also been repeatedly associated with a variety of behavioral and cognitive problems. However, little is known about the potentially differing relationships of behavioral and cognitive pathology within the sleep disordered breathing (SDB) spectrum. METHOD: This study examined data from an enriched for snoring community sample of 631 children aged between 4 and 10 years...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28522081/natural-course-and-potential-prognostic-factors-for-sleep-disordered-breathing-in-multiple-system-atrophy
#13
Yasuyoshi Ohshima, Hideaki Nakayama, Naho Matsuyama, Satoshi Hokari, Takuro Sakagami, Tomoe Sato, Toshiyuki Koya, Tetsuya Takahashi, Toshiaki Kikuchi, Masatoyo Nishizawa, Takayoshi Shimohata
OBJECTIVE/BACKGROUND: Multiple system atrophy (MSA) frequently results in the development of sleep-disordered breathing (SDB). Few reports have described the natural course of this phenomenon. The aim of the present study was to determine the natural course of SDB and prognostic factors associated with such conditions in MSA. PATIENTS/METHODS: Twenty-four consecutive patients were recruited with probable MSA, who had not been treated with continuous positive airway pressure (CPAP) and had undergone overnight polysomnography (PSG) more than once following the development of snoring or stridor...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28522078/a-randomized-controlled-trial-of-positional-therapy-versus-oral-appliance-therapy-for-position-dependent-sleep-apnea
#14
Linda Benoist, Maurits de Ruiter, Jan de Lange, Nico de Vries
OBJECTIVE: To compare the effectiveness of positional therapy (PT) with the sleep position trainer (SPT) to oral appliance therapy (OAT) in patients with mild-to-moderate positional obstructive sleep apnea (POSA). METHODS: Multicenter, prospective, randomized, controlled trial. Patients with mild-to-moderate POSA (apnea-hypopnea index (AHI) ≥5 ≤ 30/hour sleep) were randomized for PT or OAT. Polysomnography was repeated after 3 months. Efficacy, adherence, mean disease alleviation (MDA), quality of life, dropouts and adverse events were evaluated...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28514291/role-of-microrna-130a-in-the-pathogeneses-of-obstructive-sleep-apnea-hypopnea-syndrome-associated-pulmonary-hypertension-by-targeting-the-gax-gene
#15
Zhe An, Dan Wang, Guang Yang, Wen-Qi Zhang, Jin Ren, Jin-Ling Fu
OBJECTIVE: The purpose of this study was to elucidate the role of microRNA-130a (miR-130a) in obstructive sleep apnea hypopnea syndrome (OSAHS)-associated pulmonary hypertension (PHT) by targeting the growth arrest-specific homeobox (GAX) gene. METHODS: A total of 108 patients with OSAHS-associated PHT were recruited as the OSAHS-associated PHT group and 110 healthy individuals were randomly selected as the normal control group. Human umbilical vein endothelial cells (HUVECs) were selected and divided into the control, miR-130a mimic, mimic negative control (NC), miR-130a inhibitor, and inhibitor-NC groups...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28513057/systemic-inflammation-and-alterations-to-cerebral-blood-flow-in-obstructive-sleep-apnea
#16
Hsiu-Ling Chen, Hsin-Ching Lin, Cheng-Hsien Lu, Pei-Chin Chen, Chih-Cheng Huang, Kun-Hsien Chou, Mao-Chang Su, Michael Friedman, Yi-Wen Chen, Wei-Che Lin
Systemic inflammation and alterations to regional cerebral blood flow (CBF) have been reported previously in obstructive sleep apnea (OSA). This study utilized arterial spin labelling (ASL) perfusion magnetic resonance imaging (MRI) to evaluate CBF in OSA patients and determine its relationship with systemic inflammation. Twenty male patients with moderate and severe OSA [apnea-hypopnea index (AHI) >15] and 16 healthy male volunteers (AHI <5) were recruited. Early- or late-phase changes in leucocyte apoptosis and its subsets were determined by flow cytometry...
May 17, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28508712/changing-rates-of-morbidity-and-mortality-in-obstructive-sleep-apnea-surgery
#17
Jacob J Friedman, Anna M Salapatas, Lauren B Bonzelaar, Michelle S Hwang, Michael Friedman
Objective Whereas uvulopalatopharyngoplasty (UPPP) was the standard surgical procedure for obstructive sleep apnea prior to 2007, multilevel surgery has become the standard since that time. This study compares morbidity and mortality rates of the stand-alone UPPP with those of multilevel sleep surgery that includes UPPP. Methods Patients undergoing UPPP between 2007 and 2014 were identified in the American College of Surgeons National Surgical Quality Improvement Program database. UPPP was defined by Current Procedural Terminology codes 42145 and 42950...
May 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28502282/morning-diastolic-blood-pressure-may-be-independently-associated-with-severity-of-obstructive-sleep-apnea-in-non-hypertensive-patients-a-cross-sectional-study
#18
Łukasz Mokros, Wojciech Kuczyński, Łukasz Franczak, Piotr Białasiewicz
STUDY OBJECTIVES: The aim of the study is to verify a possible association between arterial blood pressure and obstructive sleep apnea (OSA) severity in a group of non-hypertensive patients. METHODS: This is a retrospective study of 1,171 consecutive patients referred to the sleep laboratory with complaints suggestive of OSA who underwent standard diagnostic polysomnography. In total, 454 patients with no history of arterial hypertension nor had received any such treatment were selected from this group...
May 11, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28489776/is-c-reactive-protein-a-marker-of-obstructive-sleep-apnea-a-meta-analysis
#19
Kun Li, Peng Wei, Yanwen Qin, Yongxiang Wei
BACKGROUND: Obstructive sleep apnea (OSA) is a common disease, distinguished by recurrent episodes of upper airway obstruction during sleep, with an inflammatory component. C-reactive protein (CRP) and high-sensitivity C-reactive protein (hs-CRP) are markers of systemic inflammation and may serve as biomarkers of OSA. METHODS: Scientific studies published from January 1, 2006, to January 1, 2016 were obtained via searches of PubMed, Embase, SCI, and China National Knowledge Internet (CNKI) using relevant terms...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28489737/clinical-effect-of-montelukast-sodium-combined-with-inhaled-corticosteroids-in-the-treatment-of-osas-children
#20
Da-Zhi Yang, Jia Liang, Feng Zhang, Hong-Bing Yao, Yan Shu
This study was designed to investigate the clinical effect of montelukast sodium combined with inhaled corticosteroids in the treatment of children with obstructive sleep apnea syndrome (OSAS).One hundred ninety-five children were enrolled and divided into 3 groups: groups A, B, and C; the group A (oral use of montelukast sodium), group B (nasal spray of mometasone furoate), and group C (oral use of montelukast sodium + nasal spray of mometasone furoate). Telephone questionnaire surveys were carried out. Polysomnography monitoring was performed and lateral x-ray radiographs of the cervical spine were taken before treatment and at 12 weeks after treatment...
May 2017: Medicine (Baltimore)
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