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https://www.readbyqxmd.com/read/28818154/physiology-based-modeling-may-predict-surgical-treatment-outcome-for-obstructive-sleep-apnea
#1
Yanru Li, Jingying Ye, Demin Han, Xin Cao, Xiu Ding, Yuhuan Zhang, Wen Xu, Jeremy Orr, Rachel Jen, Scott Sands, Atul Malhotra, Robert Owens
STUDY OBJECTIVES: To test whether the integration of both anatomical and nonanatomical parameters (ventilatory control, arousal threshold, muscle responsiveness) in a physiology-based model will improve the ability to predict outcomes after upper airway surgery for obstructive sleep apnea (OSA). METHODS: In 31 patients who underwent upper airway surgery for OSA, loop gain and arousal threshold were calculated from preoperative polysomnography (PSG). Three models were compared: (1) a multiple regression based on an extensive list of PSG parameters alone; (2) a multivariate regression using PSG parameters plus PSG-derived estimates of loop gain, arousal threshold, and other trait surrogates; (3) a physiological model incorporating selected variables as surrogates of anatomical and nonanatomical traits important for OSA pathogenesis...
August 14, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28816290/-treatment-outcome-evaluation-of-different-mandibular-advancements-using-oral-appliance-to-treat-obstructive-sleep-apnea-and-hyponea-syndrome-a-systematic-review
#2
Y Y Ma, J J Zhang, X M Gao
OBJECTIVE: To evaluate the polysomnology results along with mandibular titrated advancement using oral appliance to treat obstructive sleep apnea and hyponea syndrome (OSAHS). METHODS: Several electronic databases (PubMed, Embase, Cochrane Library, CNKI, VIP, and Wanfang) were systematically searched up to September 2015. There was no restriction of language or source of information. All randomized clinical trials (RCT) and before-after trials (BAT) comparing at least two different mandibular advancements were included...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28808850/non-rem-sleep-disordered-breathing-affects-performance-on-the-psychomotor-vigilance-task
#3
Takuro Kitamura, Soichiro Miyazaki, Hiroshi Kadotani, Takashi Kanemura, Harun Bin Sulaiman, Shoko Takeuchi, Takahisa Tabata, Hideaki Suzuki
PURPOSE: Although many studies have investigated the clinical importance of sleep apnea on rapid eye movement (REM) and non-REM (NREM) sleep, the relationship between behavioral performance and apneic events during different sleep phases remains unclear. In the present study, we sought to investigate the effect of sleep phase fragmentation due to sleep-disordered breathing (SDB) during REM and NREM on the vigilance and sustainability of attention based on psychomotor vigilance task (PVT) performance...
August 14, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28808319/ip-10-levels-as-an-accurate-screening-tool-to-detect-acute-hiv-infection-in-resource-limited-settings
#4
Lucía Pastor, Aina Casellas, Jorge Carrillo, Sergi Alonso, Erica Parker, Laura Fuente-Soro, Chenjerai Jairoce, Inacio Mandomando, Julià Blanco, Denise Naniche
Acute HIV infection (AHI) is the period prior to seroconversion characterized by high viral replication, hyper-transmission potential and commonly, non-specific febrile illness. AHI detection requires HIV-RNA viral load (VL) determination, which has very limited access in low-income countries due to restrictive costs and implementation constraints. We sought to identify a biomarker that could enable AHI diagnosis in scarce-resource settings, and to evaluate the feasibility of its implementation. HIV-seronegative adults presenting at the Manhiça District Hospital, Mozambique, with reported-fever were tested for VL...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28807565/disrupted-day-night-pattern-of-cardiovascular-death-in-obstructive-sleep-apnea
#5
Emerson Ferreira Martins, Denis Martinez, Fernando A Boeira Sabino da Silva, Lauren Sezerá, Rodrigo da Rosa de Camargo, Cintia Zappe Fiori, Flávio Danni Fuchs, Ruy Silveira Moraes
BACKGROUND: Obstructive sleep apnea (OSA) patients who suffer sudden cardiac death die predominantly during the night. We aimed to investigate whether all cardiovascular-related deaths display the same night-time peak as sudden cardiac death. METHODS: Data from a large cohort of adults who underwent full-night polysomnography between 1985 and 2015 in a university-affiliated sleep clinic were analyzed. Time and cause of death of these patients and of persons from the general population were identified in death certificates from the State Health Secretariat...
July 26, 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28807529/correlation-of-soft-palate-length-with-velum-obstruction-and-severity-of-obstructive-sleep-apnea-syndrome
#6
Ju-Shin Lim, Jae Woo Lee, Chun Han, Jang-Woo Kwon
OBJECTIVE: Our aim in this study was to analyze whether soft palate length and velum obstruction during sleep are correlated and to determine the effects of related parameters on obstructive sleep apnea syndrome (OSAS) severity. We used computed tomography to measure soft palate length and drug-induced sleep endoscopy (DISE) to evaluate velum obstruction severity. Patients also underwent polysomnography (PSG) for evaluation of OSAS severity. METHODS: A retrospective cohort of 67 patients with OSAS treated between May 1st, 2013 and July 31st, 2016 was analyzed...
August 11, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28805272/clinical-phenotype-of-south-east-asian-temporomandibular-disorder-patients-with-upper-airway-resistance-syndrome
#7
David K L Tay, Kenny P Pang
OBJECTIVE: To document the clinical phenotype of temporomandibular disorder (TMD) patients with concomitant upper airway resistance syndrome (UARS) in a South East Asian population. STUDY DESIGN: A multi-center prospective series of 86 TMD patients (26 men and 60 women / mean age 35.7 years) with UARS. All had excessive daytime sleepiness, high arousal index and apnea-hypopnea index (AHI)<5 RESULTS: The mean body mass index was 20.1, mean arousal index 16.2, mean respiratory disturbance index 19...
August 14, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28802385/comparison-of-home-sleep-apnea-testing-versus-laboratory-polysomnography-for-the-diagnosis-of-obstructive-sleep-apnea-in-children
#8
Nicholas Scalzitti, Shana Hansen, Stephen Maturo, Joshua Lospinoso, Peter O'Connor
INTRODUCTION: Obstructive sleep apnea (OSA) affects 1-5% of pediatric patients. Laboratory polysomnography is expensive, not always available, and is inconvenient for patients. Our study investigates the diagnostic ability of an unattended ambulatory monitor for the diagnosis of pediatric OSA. METHODS: A prospective study was conducted in children, ages 2-17. Subjects completed in-lab polysomnography simultaneously with ambulatory monitoring. Caregivers attempted home studies on two subsequent nights to compare the home monitor and the laboratory polysomnogram (PSG)...
September 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28802380/can-telemetry-data-obviate-the-need-for-sleep-studies-in-pierre-robin-sequence
#9
Nicole Leigh Aaronson, Noel Jabbour
OBJECTIVE: This study looks to correlate telemetry data gathered on patients with Pierre Robin Sequence (PRS) with sleep study data. Strong correlation might allow obstructive sleep apnea (OSA) to be reasonably predicted without the need for sleep study. METHODS: Charts from forty-six infants with PRS who presented to our children's hospital between 2005 and 2015 and received a polysomnogram (PSG) prior to surgical intervention were retrospectively reviewed. Correlations and scatterplots were used to compare average daily oxygen nadir, overall oxygen nadir, and average number of daily desaturations from telemetry data with apnea-hypopnea index (AHI) and oxygen nadir on sleep study...
September 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28802366/formula-for-the-prediction-of-apnea-hypopnea-index-in-children-with-obstructive-sleep-apnea-without-polysomnography-according-to-the-clinical-parameters-is-it-reliable
#10
Zlatko Kljajić, Željka Roje, Kristijan Bečić, Vesna Čapkun, K Vilović, Petar Ivanišević, Eugenija Marušić
PURPOSE OF THE STUDY: The aim of the study was to propose "the risk formula" for obstructive sleep apnea in children according to the general and local clinical parameters and findings relevant for obstructive sleep apnea (OSA) severity. The unmet need for this formula arises from the economic burden of polysomnography (device, staff, training, special sleep centers, etc) as the golden standard for the diagnostics. MATERIALS AND METHODS USED: The study was performed from January 2013 until January 2016 in the Sleep Center, Department for Neuroscience, School of Medicine of the University of Split, Department of Pediatrics, University Hospital Split, Croatia and ENT Dept...
September 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28800204/comparison-of-robotic-and-coblation-tongue-base-resection-for-obstructive-sleep-apnea
#11
Chi Sang Hwang, Jin Won Kim, Jin Woong Kim, Eun Jung Lee, Chang-Hoon Kim, Joo-Heon Yoon, Hyung-Ju Cho
OBJECTIVES: To compare the efficacy and safety of transoral robotic surgery (TORS) with endoscope-guided coblation tongue base resection. DESIGN: Retrospective case-control study. SETTING: University-based tertiary care medical center. PARTICIPANTS: OSA patients who underwent endoscope-guided tongue base coblation resection or TORS in combination with lateral pharyngoplasty at a single institution in South Korea between April 2013 and December 2016 were investigated...
August 11, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28800040/effect-of-continuous-positive-airway-pressure-in-hypertensive-patients-with-obstructive-sleep-apnea-and-high-urinary-metanephrines
#12
Luisa Gilardini, Carolina Lombardi, Gabriella Redaelli, Paola Mattaliano, Paolo Fanari, Mauro Cornacchia, Massimo Scacchi, Stefania Mai, Patrizia Ferronato, Gianfranco Parati, Cecilia Invitti
OBJECTIVE: Some cases of pseudopheochromocytoma have been described among hypertensive patients with obstructive sleep apnea (OSA). This study examined whether a pathological rise of urinary metanephrines is a common feature in hypertensive OSA patients and, in such a case, whether the ventilation treatment during sleep (continuous or biphasic positive airway pressure) may normalize high metanephrines levels. METHODS: Patients with endocrine diseases, drug abuse, therapy with TCA and cardiovascular events in the previous 6 months were excluded...
August 10, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28798255/benefits-of-oxytocin-administration-in-obstructive-sleep-apnea
#13
Vivek Jain, Joseph Marbach, Shawn Kimbro, David C Andrade, Arad Jain, Eleanor Capozzi, Kyle Mele, Rodrigo Del Rio, Matthew W Kay, David Mendelowitz
Activation of oxytocin receptors has shown benefits in animal models of Obstructive Sleep Apnea (OSA). We tested if nocturnal oxytocin administration could have beneficial effects in OSA patients. 8 patients diagnosed with OSA were administered intranasal oxytocin (40 i.u.). Changes in cardiorespiratory events during sleep, including apnea and hypopnea durations and frequency, risk of event-associated arousals, and heart rate variability were assessed. Oxytocin significantly increased indices of parasympathetic activity, including heart rate variability, total sleep time, and the Post-Polysommogram Sleep Assessment (PPSA) score, an index of self-reported sleep satisfaction...
August 10, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28796077/association-of-adiponectin-level-and-obstructive-sleep-apnea-prevalence-in-obese-subjects
#14
Fanfang Zeng, Xiang Wang, Wei Hu, Lili Wang
Obstructive sleep apnea (OSA) is prevalent in obese subjects. Plasma adiponectin level in obese subjects is decreased. Whether reduced adiponectin level is associated with OSA is unknown. Participants without a previous diagnosis of OSA or who have not been treated with continuous positive airway pressure were enrolled and parameters of interest were collected. Polysomnography was performed to evaluate the presence of OSA and the severity of OSA as indexed by the apnea-hypopnea index (AHI). Between-group differences were analyzed...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28795409/upper-airway-surgery-for-obstructive-sleep-apnea-reduces-blood-pressure
#15
Kenny P Pang, Edward B Pang, Kathleen A Pang, Claudio Vicini, Yiong Huak Chan, Brian W Rotenberg
OBJECTIVES/HYPOTHESIS: To evaluate if upper airway surgery reduces blood pressure in patients with obstructive sleep apnea (OSA). STUDY DESIGN: Prospective series. METHODS: A prospective series of 112 consecutive OSA patients with hypertension (HTN). All patients were > 18 years old, respiratory disturbance index >5, all levels of apnea-hypopnea index (AHI), with a history of HTN treated with medication for at least 6 months. Surgical procedures included septoplasty, turbinate reduction, palate surgery, and tongue base reduction...
August 10, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28794858/monitoring-respiration-and-oxygen-saturation-in-patients-during-the-first-night-after-elective-bariatric-surgery-a-cohort-study
#16
Liselott Wickerts, Sune Forsberg, Frederic Bouvier, Jan Jakobsson
Background: Obstructive sleep apnoea and obese hypoventilation is not uncommon in patients with obesity. Residuals effect from surgery/anaesthesia and opioid analgesics may worsen respiration during the first nights after bariatric surgery. The aim of this observational study was to monitor respiration on the first postoperative night following elective bariatric surgery. Methods: This observational study aimed to determine the incidence and severity of hypo/apnoea in low risk obsess patients undergoing elective bariatric surgery in general anesthaesia...
2017: F1000Research
https://www.readbyqxmd.com/read/28791819/decreased-sl-selectin-serum-levels-in-sleep-apnea-syndrome-patients-with-cardiovascular-diseases
#17
Monika Kosacka, Irena Porębska, Renata Jankowska
BACKGROUND: Obstructive sleep apnea syndrome (OSA) is a common disorder associated with an increased risk of cardiovascular diseases. OBJECTIVES: sL-selectin is an adhesion molecule released from the surface of leukocytes as they are activated and may inhibit leukocyte attachment to the endothelium. The aim of this study was to evaluate sL-selectin serum levels in OSA patients with cardiovascular diseases. MATERIAL AND METHODS: A total of 163 OSA patients were enrolled in the study...
May 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28790440/adenoviral-e4-34k-protein-interacts-with-virus-packaging-components-and-may-serve-as-the-putative-portal
#18
Yadvinder S Ahi, Ahmed O Hassan, Sai V Vemula, Kunpeng Li, Wen Jiang, Guang Jun Zhang, Suresh K Mittal
Studies on dsDNA bacteriophages have revealed that a DNA packaging complex assembles at a special vertex called the 'portal vertex' and consists of a portal, a DNA packaging ATPase and other components. AdV protein IVa2 is presumed to function as a DNA packaging ATPase. However, a protein that functions as a portal is not yet identified in AdVs. To identify the AdV portal, we performed secondary structure analysis on a set of AdV proteins and compared them with the clip region of the portal proteins of bacteriophages phi29, SPP1 and T4...
August 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28776933/factors-affecting-fatigue-severity-in-patients-with-obstructive-sleep-apnea
#19
Soo A Kim, Brian B Koo, Do Eui Kim, Young Hwangbo, Kwang Ik Yang
OBJECTIVES: A limited number of studies have investigated the relationships among fatigue, insomnia and obstructive sleep apnea (OSA). This study evaluated the factors affecting fatigue severity in patients with OSA. METHODS: We investigated 633 OSA patients who were diagnosed by polysomnography. All patients completed sleep questionnaires including self-reported sleep duration, the Fatigue Severity Scale (FSS), the Korean version of Epworth Sleepiness Scale (K-ESS), Insomnia Severity Index (ISI), Korean version of Pittsburg Sleep Quality Index (K-PSQI) and Beck Depression Inventory-2 (BDI-2)...
August 4, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/28762916/-predictors-of-electrical-myocardial-instability-in-men-with-arterial-hypertension-and-obstructive-sleep-apnea-hypopnea-syndrome
#20
O V Lyshova, N V Borodin, I I Kostenko
OBJECTIVE: To access the detectability of corrected QT interval (QTc) prolongation ( more or equal 450 ms) and increased QT dispersion (QTd more or equal 60 ms) in men with obstructive sleep apnea-hypopnea syndrome (OSAS) and newly diagnosed arterial hypertension (AH). MATERIAL AND METHODS: We included in this study 138 men (mean age 40.5+/-6.9 years, body mass index 34.5+/-4.7 kg/m2, all with more or equal 3 risk factors of AH development, 34% with subclinical target organs damage)...
May 2017: Kardiologiia
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