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Apnea hypopnea index

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https://www.readbyqxmd.com/read/29340495/validation-of-the-stop-bang-questionnaire-as-a-means-of-screening-for-obstructive-sleep-apnea-in-adults-in-brazil
#1
Ricardo Luiz de Menezes Duarte, Lorena Barbosa de Moraes Fonseca, Flavio José Magalhães-da-Silveira, Erika Aparecida da Silveira, Marcelo Fouad Rabahi
OBJECTIVE: To validate the Portuguese-language version of the STOP-Bang (acronym for Snoring, Tiredness, Observed apnea, high blood Pressure, Body mass index, Age, Neck circumference, and Gender) questionnaire, culturally adapted for use in Brazil, as a means of screening for obstructive sleep apnea (OSA) in adults. METHODS: In this validation study, we enrolled patients ≥ 18 years of age, recruited between May of 2015 and November of 2016. All patients completed the STOP-Bang questionnaire and underwent overnight polysomnography...
November 2017: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/29339206/objective-sleep-measures-in-subacute-stroke-inpatients-associated-with-levels-and-improvements-in-activities-of-daily-living
#2
Ren-Jing Huang, Ching-Hsiang Lai, Shin-Da Lee, Fang-Yu Pai, Shen-Wen Chang, Ai-Hui Chung, Yi-Fang Chang, Hua Ting
OBJECTIVE: To investigate whether objective polysomnographic measures of prevalent sleep problems such as sleep-disordered-breathing (SDB) and insomnia are associated with activities of daily living levels in inpatients at rehabilitation units DESIGN: Retrospective and observational study SETTING: Single rehabilitation center PARTICIPANTS: One hundred twenty-three enrolled subacute stroke inpatients (61.6 ± 13.1 years; 23.8 ± 3.4 kg/m2; 33% female; 90.5 ± 36.7 days post-stroke) underwent a one-night polysomnography study and one-month-long inpatient rehabilitation program...
January 12, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29339193/a-pilot-study-on-the-biomechanical-assessment-of-obstructive-sleep-apnea-pre-and-post-bariatric-surgery
#3
Ahmed M Al-Jumaily, Sherif Ashaat, Bryn Martin, Rachael Pohle-Krauza, Matthew Krauza, Adrian Dan, John Zografakis
Obesity is a major risk factor for obstructive sleep apnea patients. In obese patients the severity of this risk can be reduced by bariatric surgery. This pilot study investigates the perioperative effects of bariatric surgery on obstructive sleep apnea and on the physical and biomechanical characteristics of the upper airway. Polysomnography and computer tomography data for 10 morbid obese patients promoted for bariatric surgery were conducted before surgery and at 6 and 12 months postoperatively for assessment of the oropharyngeal anatomy, and subsequent three-dimensional modelling of the airway...
January 12, 2018: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/29338120/the-association-between-different-features-of-sleep-disordered-breathing-and-blood-pressure-a-cross-sectional-study
#4
Shayan Khoshkish, Mathias Hohl, Benedikt Linz, Michael Arzt, Felix Mahfoud, Mathias Baumert, Jakob Schöpe, Michael Böhm, Dominik Linz
Sleep disordered breathing (SDB) is highly prevalent in patients with high blood pressure (BP). Severity of SDB can be evaluated by the number of apneas and hypopneas per hour (AHI) or by measures of hypoxia. The objective of this study was to assess the association between different measures of SDB and BP. In 134 consecutive patients, polygraphy was performed to determine the AHI. Pulse oximetry was used to determine hypoxemic burden (time below 90% oxygen saturation [T90] and hypoxia load [HL], representing the integrated area above the curve of desaturation)...
January 16, 2018: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/29332687/similarities-and-differences-in-estimates-of-sleep-duration-by-polysomnography-actigraphy-diary-and-self-reported-habitual-sleep-in-a-community-sample
#5
Karen A Matthews, Sanjay R Patel, Elizabeth J Pantesco, Daniel J Buysse, Thomas W Kamarck, Laisze Lee, Martica H Hall
OBJECTIVES: To compare estimates of sleep duration defined by polysomnography (PSG), actigraphy, daily diary, and retrospective questionnaire and to identify characteristics associated with differences between measures. DESIGN: Cross-sectional. SETTING: Community sample. PARTICIPANTS: The sample consisted of 223 Black, White, and Asian middle- to older-aged men and women residing in the Pittsburgh, PA area. INTERVENTIONS: Not applicable...
February 2018: Sleep Health
https://www.readbyqxmd.com/read/29330970/gamma-glutamyl-transferase-activity-as-a-predictive-marker-for-severity-of-obstructive-sleep-apnea-syndrome-and-concomitant-hypertension
#6
Bozkus Fulsen
BACKGROUND: Chronic intermittent hypoxia, inflammation and oxidative stress are involved in resultant obstructive sleep apnea syndrome (OSAS), which may affect numerous regulatory mechanisms that play a role in the regulation of blood pressure. Gamma glutamyl transferase (GGT) is a novel marker in the prediction of cardiovascular risk. OBJECTIVE: The objective of this study was to investigate the correlation of serum levels of GGT with hypertension and the degree of the upper airway obstruction in subjects with OSAS...
January 13, 2018: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29330769/comorbid-insomnia-and-sleep-apnea-in-veterans-with-post-traumatic-stress-disorder
#7
Ali A El-Solh, David Adamo, Thomas Kufel
PURPOSE: The purpose of this study was to determine the impact of insomnia in Veterans with post-traumatic stress disorder (PTSD) and obstructive sleep apnea (OSA) on health-related outcomes before and after 12 weeks of continuous positive airway pressure (CPAP) treatment. METHODS: We conducted a prospective cohort study of Veterans with PTSD and documented apnea hypopnea index (AHI) ≥ 5 with and without clinically significant insomnia as determined by the Insomnia Severity Index (ISI)...
January 10, 2018: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29327119/nocturnal-hypoxemic-burden-is-associated-with-epicardial-fat-volume-in-patients-with-acute-myocardial-infarction
#8
Dominik Linz, Stefan Colling, Wolfgang Nußstein, Kurt Debl, Mathias Hohl, Claudia Fellner, Michael Böhm, Lars S Maier, Okka W Hamer, Stefan Buchner, Michael Arzt
BACKGROUND: Increased epicardial fat volume (EFV) is a common feature of patients with sleep-disordered breathing (SDB), is considered as an established marker of cardiovascular risk, and is associated with adverse cardiovascular events after myocardial infarction (MI). METHODS: To investigate the association between different measures of SDB severity and EFV after acute MI, we enrolled 105 patients with acute MI in this study. Unattended in-hospital polysomnography was performed to determine the number of apneas and hypopneas per hour during sleep (apnea-hypopnea index, AHI)...
January 11, 2018: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29325335/-association-between-serum-adipocyte-fatty-acid-binding-protein-level-and-insulin-resistance-in-patients-with-osas
#9
Y B Wang, X F Li, R Chen, J H Shen, Y H Zhang
Objective: To investigate the association between serum adipocyte fatty acid binding protein (A-FABP) level and insulin resistance in patients with obstructive sleep apnea syndromes (OSAS). Methods: Eighty patients with snoring were monitored by overnight polysomnography (PSG) from September 2015 to July 2017, and there were 59 males and 21 females, aged from 22 to 77 years old (mean age 47±14 years old). Based on the apnea-hypopnea index (AHI), these patients were divided into three groups: primary snoring group (AHI<5/h, n=19), mild-moderate OSAS groups (5/h≤AHI≤30/h, n=23) and severe OSAS groups (AHI>30/h, n=38)...
December 26, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29325332/-gender-differences-of-rem-related-obstructive-sleep-apnea-hypopnea-syndrome
#10
M Xie, R Ren, J M He, X F Xue, T M Li, L Tan, F Lei, X D Tang, L H Yang
Objective: To explore the gender differences of rapid-eye-movement (REM) related obstructive sleep apnea-hypopnea syndrome (OSAHS). Methods: Consecutive patients with primary complaint of snoring from Sleep Medicine Center of West China Hospital between January 2016 and November 2016 were included in the study. All participants underwent one night polysomnography (PSG) and Epworth sleep scale (ESS) was estimated. The patients diagnosed with OSAHS were classified as REM related OSAHS (REM-OSAHS group) and non-rapid-eye-movement (NREM) related OSAHS (NREM-OSAHS group) based on the PSG parameters...
December 26, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29322708/high-prevalence-of-obstructive-sleep-apnea-among-people-with-type-2-diabetes-mellitus-in-a-tertiary-care-center
#11
Vijay Viswanathan, Indira Priyadarshini Ramalingam, Nagarajan Ramakrishnan
Purpose: Untreated obstructive sleep apnea (OSA) is a risk factor for hypertension and cardiac events, and is associated with increased mortality. Recent studies indicate that majority of people with type 2 diabetes also has OSA. The aim of this study was to assess the prevalence and severity of OSA and risk factors contributing to it among people with chronic and severe type 2 diabetes. Methods: A total of 203 people with type 2 diabetes (mean age: 54±8 years, 145 males, 58 females, HbA1c ≥7% [53mmol/mol]) attending a diabetes specialty hospital were included in the study; all were subjected to comprehensive diabetic evaluation and Apnea Hypopnea Index (AHI) was used to evaluate OSA...
November 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29321408/the-factors-affecting-the-non-dipper-pattern-in-japanese-patients-with-severe-obstructive-sleep-apnea
#12
Hiromitsu Sekizuka, Naohiko Osada, Yoshihiro J Akashi
Objective Obstructive sleep apnea (OSA) is assumed to influence the circadian blood pressure (BP) fluctuation, particularly causing nocturnal hypertension and changing the dipping pattern of nocturnal BP. This study aimed to clarify the triggers of the non-dipper pattern in nocturnal BP in Japanese patients with severe OSA (the apnea-hypopnea index ≥30/h). Methods Of 541 patients with OSA diagnosed using polysomnography (PSG) and ambulatory BP monitoring (ABPM), 163 patients <60 years of age (Younger group) and 101 patients ≥60 years of age (Older group) were stratified into the dipper or non-dipper pattern groups...
January 11, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29319596/obstructive-sleep-apnea-assessed-by-overnight-polysomnography-in-patients-with-keratoconus
#13
Emilio Pedrotti, Christian Luigi Demasi, Adriano Fasolo, Erika Bonacci, Tommaso Brighenti, Nicola Gennaro, Marcello Ferrari, Giorgio Marchini
PURPOSE: To determine the prevalence of obstructive sleep apnea (OSA) in patients with keratoconus (KCN) and to evaluate the association between the severity of KCN and OSA. METHODS: OSA was diagnosed with an overnight home sleep apnea test. As estimated by home monitoring, an apnea-hypopnea index threshold of ≥5 sleep-related obstructive breathing events per hour was considered suggestive of OSA. For grading KCN severity (Amsler-Krumeich classification), slit-lamp biomicroscopy, corneal topography, and pachymetry measurements were performed...
January 9, 2018: Cornea
https://www.readbyqxmd.com/read/29318566/diagnostic-accuracy-of-level-iv-portable-sleep-monitors-versus-polysomnography-for-obstructive-sleep-apnea-a-systematic-review-and-meta-analysis
#14
REVIEW
Lusine Abrahamyan, Yeva Sahakyan, Suzanne Chung, Petros Pechlivanoglou, Joanna Bielecki, Steven M Carcone, Valeria E Rac, Michael Fitzpatrick, Murray Krahn
PURPOSE: Obstructive sleep apnea (OSA) is the most common sleep-related breathing disorder. In-laboratory, overnight type I polysomnography (PSG) is the current "gold standard" for diagnosing OSA. Home sleep apnea testing (HSAT) using portable monitors (PMs) is an alternative testing method offering better comfort and lower costs. We aimed to systematically review the evidence on diagnostic ability of type IV PMs compared to PSG in diagnosing OSA. METHODS: Participants: patients ≥16 years old with symptoms suggestive of OSA;intervention: type IV PMs (devices with < 2 respiratory channels); comparator: in-laboratory PSG; outcomes: diagnostic accuracy measures;studies: cross-sectional, prospective observational/experimental/quasi-experimental studies; information sources: MEDLINE and Cochrane Library from January 1, 2010 to May 10, 2016...
January 9, 2018: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29315434/recognizable-clinical-subtypes-of-osa-across-a-worldwide-sleep-center-population-a-cluster-analysis
#15
Brendan T Keenan, Jinyoung Kim, Bhajan Singh, Lia Bittencourt, Ning-Hung Chen, Peter A Cistulli, Ulysses Magalang, Nigel McArdle, Jesse W Mindel, Bryndis Benediktsdottir, Erna Sif Arnardottir, Lisa Kristin Prochnow, Thomas Penzel, Bernd Sanner, Richard Schwab, Chol Shin, Kate Sutherland, Sergio Tufik, Greg Maislin, Thorarinn Gislason, Allan I Pack
Study Objectives: A recent study of moderate-severe obstructive sleep apnea (OSA) patients in Iceland identified 3 clinical clusters based on symptoms and comorbidities. We sought to verify this finding in a new cohort in Iceland and examine the generalizability of OSA clusters in an international ethnically diverse cohort. Methods: Using data on 972 moderate-severe OSA patients [apnea-hypopnea index (AHI) ≥15 events/hour] recruited from the Sleep Apnea Global Interdisciplinary Consortium (SAGIC) we performed a latent class analysis of 18 self-reported symptom variables, hypertension, cardiovascular disease and diabetes...
January 5, 2018: Sleep
https://www.readbyqxmd.com/read/29302924/serum-romo1-is-significantly-associated-with-disease-severity-in-patients-with-obstructive-sleep-apnea-syndrome
#16
Liang Ye, Yingying Qian, Qian Li, Surong Fang, Zhenhua Yang, Yan Tan, Wei Gu
PURPOSE: We aim to evaluate reactive oxygen species modulator 1 (Romo1) levels in obstructive sleep apnea syndrome (OSAS) and analyze its possible relationships to OSAS severity, reactive oxygen species (ROS), and C-reactive protein (CRP). Additionally, we also investigated the effects of nasal continuous positive airway pressure (nCPAP) on serum Romo1. METHODS: One hundred and five patients diagnosed with OSAS were classified into the OSAS group, and 41 subjects without OSAS were recruited for the control group...
January 4, 2018: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29302923/different-polysomnographic-patterns-in-military-veterans-with-obstructive-sleep-apnea-in-those-with-and-without-post-traumatic-stress-disorder
#17
Fariborz Rezaeitalab, Naghmeh Mokhber, Yalda Ravanshad, Soheila Saberi, Fariba Rezaeetalab
INTRODUCTION AND OBJECTIVES: Obstructive sleep apnea (OSA) is a prevalent disorder among military veterans. The goal of this study is to compare the polysomnographic patterns of OSA in military veterans who have a history of post-traumatic stress disorder (PTSD) with those of veterans who have not PTSD. MATERIALS AND METHODS: Seventy-two Iranian military male veterans were classified into two groups: those with PTSD (40 cases) and those without PTSD (32 cases). Each participant was diagnosed with OSA using an overnight polysomnography, during which sleep-related parameters such as sleep efficiency (SE) and apnea-related events were detected...
January 4, 2018: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29301595/secreted-frizzled-related-protein-5-sfrp5-in-patients-with-obstructive-sleep-apnea
#18
Dong-Mei Zhang, Rong Huang, Yi Xiao, Feng-Ying Gong, Xu Zhong, Jin-Mei Luo
Objective Obstructive sleep apnea (OSA) is closely related to obesity, insulin resistance and inflammation. Secreted frizzled-related protein 5 (SFRP5) is a recently discovered adipokine. It is involved in insulin resistance and inflammation in obesity. This study aimed at evaluating the association between SFRP5 and sleeping characteristics as well as biochemical parameters of OSA patients. Methods This was a prospective case control study. Nondiabetic OSA patients and controls were consecutively recruited and divided into three groups: OSA group, apnea-hypopnea Index (AHI)≥5/h; healthy controls with normal body mass index (BMI); obese controls without OSA, and BMI > 24...
December 30, 2017: Chinese Medical Sciences Journal, Chung-kuo i Hsüeh K'o Hsüeh Tsa Chih
https://www.readbyqxmd.com/read/29298526/comparison-of-radiofrequency-and-transoral-robotic-surgery-in-obstructive-sleep-apnea-syndrome-treatment
#19
Engin Aynacı, Murat Karaman, Burak Kerşin, Mahmut Ozan Fındık
INTRODUCTION: Radiofrequency tissue ablation (RFTA) and transoral robotic surgery (TORS) are the methods used in OSAS surgery. We also aimed to compare the advantages and disadvantages of RF and TORS as treatment methods applied in OSAS patients in terms of many parameters, especially apnea hypopnea index (AHI). MATERIALS AND METHODS: Patients were classified by performing a detailed examination and evaluation before surgery. 20 patients treated with anterior palatoplasty and uvulectomy -/+ tonsillectomy + RFTA (17 males, 3 females) and 20 patients treated with anterior palatoplasty and uvulectomy -/+  tonsillectomy + TORS (16 males, 4 females) were included in the study...
January 3, 2018: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/29298404/predictors-of-obstructive-sleep-apnea-in-consecutive-patients-with-metabolic-syndrome
#20
Rodrigo P Pedrosa, Cristiane Maki-Nunes, Thiago Midlej-Brito, Heno F Lopes, Lunara S Freitas, Ivani C Trombetta, Edgar Toschi-Dias, Maria Janieire N N Alves, Raffael F Fraga, Maria U Rondon, Carlos E Negrão, Luiz A Bortolotto, Geraldo Lorenzi-Filho, Luciano F Drager
BACKGROUND: Recent evidence suggests that obstructive sleep apnea (OSA) is common in patients with metabolic syndrome (MetS) and may contribute to metabolic deregulation, inflammation, and atherosclerosis in these patients. In clinical practice, however, OSA is frequently underdiagnosed. We sought to investigate the clinical predictors of OSA in patients with MetS. METHODS: We studied consecutive patients newly diagnosed with MetS (Adult Treatment Panel-III). All participants underwent clinical evaluation, standard polysomnography, and laboratory measurements...
January 3, 2018: Metabolic Syndrome and related Disorders
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