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sleep obstructive apnea and obesity

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https://www.readbyqxmd.com/read/28230704/muscle-metaboreflex-control-of-sympathetic-activity-in-obstructive-sleep-apnea
#1
Linda M Ueno-Pardi, Renan S Guerra, Thiago T Goya, Rosyvaldo F Silva, Elisangela M Gara, Marta F Lima, Thais S Nobre, Maria J N N Alves, Ivani C Trombetta, Geraldo Lorenzi-Filho
PURPOSE: Previous studies report abnormal muscle metaboreflex control of muscle sympathetic nerve activity (MSNA) in obesity, hypertension, and heart failure. We hypothesized that obstructive sleep apnea (OSA) is associated with augmented metaboreflex control of MSNA. METHODS: Thirty-one sedentary individuals with no comorbidities (age = 52±1 y, body mass index = 28±1 kg/m) without (control, n = 14) and with OSA (n = 17) defined by polysomnography, underwent echocardiography...
February 22, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28219664/effect-of-pioglitazone-on-cardiometabolic-risk-in-patients-with-obstructive-sleep-apnea
#2
Alice Liu, Fahim Abbasi, Sun H Kim, Danit Ariel, Cindy Lamendola, James Cardell, Shiming Xu, Shailja Patel, Vanessa Tomasso, Hafasa Mojaddidi, Kaylene Grove, Philip S Tsao, Clete A Kushida, Gerald M Reaven
Prevalence of insulin resistance is increased in patients with obstructive sleep apnea (OSA). Because insulin resistance is an independent predictor of cardiovascular disease (CVD), this study was initiated to see if pioglitazone administration would improve insulin sensitivity and thereby decrease risk of CVD in overweight/obese, nondiabetic, insulin-resistant patients with untreated OSA. Patients (n = 30) were administered pioglitazone (45 mg/day) for 8 weeks, and measurements were made before and after intervention of insulin action (insulin-mediated glucose uptake by the insulin suppression test), C-reactive protein, lipid/lipoprotein profile, and gene expression profile of periumbilical subcutaneous fat tissue...
January 25, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28215263/sleep-disordered-breathing-systemic-adipokine-secretion-and-metabolic-dysregulation-in-overweight-and-obese-children-and-adolescents
#3
Annelies Van Eyck, Kim Van Hoorenbeeck, Benedicte Y De Winter, Luc Van Gaal, Wilfried De Backer, Stijn L Verhulst
OBJECTIVE: Obstructive sleep apnea (OSA) is common among overweight and obese children, and it is an independent risk factor for developing metabolic syndrome. However, the mechanisms linking OSA and metabolic syndrome are still unclear, but a role for adipose tissue dysfunction caused by intermittent hypoxia has been suggested. Therefore, the goal of this study was to investigate the relationship between OSA and systemic adipokine concentrations in overweight and obese children. METHODS: We included 164 overweight and obese children in a tertiary center and distributed them in groups based on their obstructive apnea-hypopnea index (111 controls, 28 mild OSA, 25 moderate-to-severe OSA)...
February 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28215237/severity-of-nocturnal-hypoxia-and-daytime-hypercapnia-predicts-cpap-failure-in-patients-with-copd-and-obstructive-sleep-apnea-overlap-syndrome
#4
Zuzana Kuklisova, Ruzena Tkacova, Pavol Joppa, Emiel Wouters, Manuel Sastry
BACKGROUND: Obstructive sleep apnea (OSA) and chronic obstructive pulmonary disease (COPD) are independent risk factors for cardiovascular diseases. In patients with OSA and concurrent COPD, continuous positive airway pressure (CPAP) therapy improves survival. Nevertheless, a significant proportion of such patients do not tolerate CPAP. The aim of the present study was to analyze early predictors of CPAP failure in patients with OSA and concurrent COPD, and to evaluate the effects of bilevel positive airway pressure (BiPAP) in this high-risk group of patients...
February 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28211992/thirty-day-outcomes-for-children-and-adolescents-undergoing-laparoscopic-sleeve-gastrectomy-at-a-free-standing-children-s-hospital
#5
A L Speer, J Parekh, F G Qureshi, E P Nadler
The obesity epidemic continues to affect millions of children and adolescents. Non-surgical options do not result in significant or sustained weight loss; thus bariatric surgery has become increasingly utilized. Limited data exist regarding safety for paediatric bariatric surgery, especially outside of National Institutes of Health (NIH)-funded centres. We hypothesized that the perioperative outcomes of paediatric patients undergoing laparoscopic sleeve gastrectomy (LSG) at our free-standing children's hospital would provide adequate safety profiles...
February 17, 2017: Clinical Obesity
https://www.readbyqxmd.com/read/28197893/gender-differences-in-clinical-and-polysomnographic-features-of-obstructive-sleep-apnea-a-clinical-study-of-2827-patients
#6
Ozen K Basoglu, Mehmet Sezai Tasbakan
PURPOSE: Obstructive sleep apnea (OSA) is underdiagnosed in females due to different clinical presentation. We aimed to determine the effect of gender on clinical and polysomnographic features and identify predictors of OSA in women. METHODS: Differences in demographic, clinical, and polysomnographic parameters between 2052 male and 775 female OSA patients were compared. RESULTS: In female OSA patients, age (56.1 ± 9.7 vs. 50.4 ± 11...
February 14, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28194410/acute-feasibility-of-neuromuscular-electrical-stimulation-in-severely-obese-patients-with-obstructive-sleep-apnea-syndrome-a-pilot-study
#7
RANDOMIZED CONTROLLED TRIAL
Isabelle Vivodtzev, Nicola A Maffiuletti, Anne-Laure Borel, Angélique Grangier, Bernard Wuyam, Renaud Tamisier, Jean-Louis Pépin
Objective. Obesity and obstructive sleep apnea (OSA) are closely interconnected conditions both leading to high cardiovascular risk. Inactivity is frequent and physical activity programs remain difficult in these patients. We investigated the acute feasibility of two neuromuscular electrical stimulation (NMES) modalities in extremely inactive obese patients with OSA. Design. A randomized cross-over study, with two experimental sessions (one per condition: multipath NMES versus conventional NMES). Setting. Outpatient research hospital...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28185772/impact-of-weight-loss-management-in-osa
#8
REVIEW
Simon A Joosten, Garun S Hamilton, Matthew T Naughton
The interaction between obesity and obstructive sleep apnea (OSA) is complex. Whilst it is often assumed that obesity is the major cause of OSA, and that treatment of the OSA might mitigate further weight gain, new evidence is emerging that suggest these statements may not be the case. Obesity explains about 60% of the variance of the apnea hypopnea index definition of OSA, mainly in those < 50 years and less so in the elderly. Moreover, long term treatment of OSA with continuous positive airway pressure is associated with small but significant weight gain...
February 6, 2017: Chest
https://www.readbyqxmd.com/read/28183716/endothelial-dysfunction-in-children-with-obstructive-sleep-apnea-is-associated-with-elevated-lipoprotein-associated-phospholipase-a2-plasma-activity-levels
#9
Leila Kheirandish-Gozal, Mona F Philby, Zhuanghong Qiao, Abdelnaby Khalyfa, David Gozal
BACKGROUND: Obstructive sleep apnea (OSA) is a highly prevalent condition, especially in obese children, and has been associated with increased risk for endothelial dysfunction and dislipidemia, which are precursors of atherosclerosis. Lipoprotein-associated phospholipase A2 (Lp-PLA2) is recognized as an independent risk factor for cardiovascular risk and atheromatous plaque activity. We hypothesized that Lp-PLA2 levels would be elevated in children with OSA, particularly among obese children who also manifest evidence of endothelial dysfunction...
February 9, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28167000/urine-cysteinyl-leukotriene-levels-in-children-with-sleep-disordered-breathing-before-and-after-adenotonsillectomy
#10
A Satdhabudha, P Sritipsukho, S Manochantr, W Chanvimalueng, U Chaumrattanakul, P Chaumphol
OBJECTIVES: Obstructive sleep apnea (OSA) is a common problem in children and is associated with increased cardiovascular, neurobehavioral and somatic growth consequences. Cysteinyl leukotrienes (CysLTs) play a major role with local and systemic relations to the pathophysiology of OSA. The level of CysLTs in urine, blood, exhaled breath and adenotonsillar tissue of OSA children are increased. However it remains unclear whether inflammatory marker levels are alleviated after adenotonsillectomy...
March 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28162147/prevalence-and-associations-of-obstructive-sleep-apnea-in-south-asians-and-white-europeans-with-type-2-diabetes-a-cross-sectional-study
#11
Amin Amin, Asad Ali, Quratul A Altaf, Milan K Piya, Anthony H Barnett, Neil T Raymond, Abd A Tahrani
STUDY OBJECTIVES: To assess and compare obstructive sleep apnea (OSA) prevalence in South Asians and White Europeans with type 2 diabetes mellitus (T2DM). Secondary aims included exploring possible causes for observed ethnic differences. METHODS: A cross-sectional study of patients with T2DM recruited from secondary care diabetes clinics. OSA was defined as an apnea-hypopnea index (AHI) ≥ 5 events/h using home-based, multichannel respiratory monitoring. RESULTS: Two hundred thirty-four patients (105 South Asian and 129 White Europeans) were studied...
January 31, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28157742/stroke-epidemiology-and-risk-factor-management
#12
Amy Guzik, Cheryl Bushnell
PURPOSE OF REVIEW: Death from stroke has decreased over the past decade, with stroke now the fifth leading cause of death in the United States. In addition, the incidence of new and recurrent stroke is declining, likely because of the increased use of specific prevention medications, such as statins and antihypertensives. Despite these positive trends in incidence and mortality, many strokes remain preventable. The major modifiable risk factors are hypertension, diabetes mellitus, tobacco smoking, and hyperlipidemia, as well as lifestyle factors, such as obesity, poor diet/nutrition, and physical inactivity...
February 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/28134311/prevalence-and-predictors-of-atherogenic-serum-lipoprotein-dyslipidemia-in-women-with-obstructive-sleep-apnea
#13
Yunyan Xia, Yiqun Fu, Yuyu Wang, Yingjun Qian, Xinyi Li, Huajun Xu, Jianyin Zou, Jian Guan, Hongliang Yi, Lili Meng, Xulan Tang, Huaming Zhu, Dongzhen Yu, Huiqun Zhou, Kaiming Su, Shankai Yin
Obstructive sleep apnea (OSA) is associated with dyslipidemia. However, no study has focused on dyslipidemia in women with OSA. The aim of this study was to determine the prevalence and risk factors for dyslipidemia in women with OSA. Between 2007 and 2013, 570 eligible female patients with suspected OSA were consecutively recruited. The analyzed data consisted of polysomnography parameters, biochemical indicators, and anthropometric measurements. Serum lipid levels and dyslipidemia were compared. Binary logistic regression and multivariate linear regression models were used to determine the independent risk factors influencing serum lipids...
January 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28131740/adipose-tissue-is-influenced-by-hypoxia-of-obstructive-sleep-apnea-syndrome-independent-of-obesity
#14
C E Thorn, B Knight, E Pastel, L J McCulloch, B Patel, A C Shore, K Kos
AIMS: Obstructive sleep apnea syndrome (OSAS) is associated with increased cardiovascular risk and diabetes independent of obesity. We investigated whether adipose tissue dysfunction is exacerbated due to increased tissue hypoxia. METHODS: Adipose tissue (AT) oxygenation was measured with a Clarke-type electrode (pATO2) in 16 men with OSAS before and after 4 months of continuous positive airway pressure therapy (CPAP) and in BMI-matched controls. Oxygenation was simultaneously monitored in arterial blood by pulse oximetry (SaO2); mixed blood in AT microcirculation by reflectance spectroscopy (SATO2) along with blood flow...
January 25, 2017: Diabetes & Metabolism
https://www.readbyqxmd.com/read/28126503/-pathophysiology-of-obstructive-sleep-apnea-syndrome-and-its-cardiometabolic-consequences
#15
Marie Destors, Renaud Tamisier, Louis-Marie Galerneau, Patrick Lévy, Jean-Louis Pepin
Obstructive sleep apnoea syndrome (OSAS) is characterized by recurrent partial or complete pharyngeal collapses during sleep. The pathophysiology of OSAS is complex and multifactorial. Factors influencing upper airway patency include a reduction in upper airway dimensions that can result from both anatomical and functional alterations (obesity, fluid shift or maxillo-facial structural changes), and increased pharyngeal collapsibility owing to reduced neuromuscular compensation and lack of the pharyngeal protective reflex during sleep...
January 23, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28126502/-therapeutic-alternatives-to-continuous-positive-airway-pressure-for-obstructive-sleep-apnea-hypopnea-syndrome
#16
Frédéric Gagnadoux, Marie Jouvenot, Nicole Meslier, Pascaline Priou, Wocjiech Trzepizur
Oral appliance therapy (OAT) is the main therapeutic alternative to continuous positive airway pressure (CPAP). OAT has been recommended as an appropriate first-line treatment option for moderate obstructive sleep apnea-hypopnea syndrome (OSAHS) in patients without severe cardiovascular comorbidity. The lower efficacy of OAT in reducing sleep-disordered breathing could be offset by a higher compliance relative to CPAP, resulting in similar health outcomes in terms of sleepiness, neurobehavioral functioning, quality of life and blood pressure...
January 23, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28121644/peripartum-management-of-obstructive-sleep-apnea
#17
Jessica L Booth, Ashley M Tonidandel
The prevalence of obstructive sleep apnea is unknown during pregnancy, but the syndrome is likely underdiagnosed and rising in frequency along with the obesity epidemic. Obstructive sleep apnea is associated with adverse outcomes, including hypertensive disorders of pregnancy, gestational diabetes, preterm, and cesarean delivery. Obese pregnant women should be screened and referred to a sleep medicine specialist for evaluation. Continuous positive airway pressure is the treatment of choice with demonstrated safety and compliance in pregnancy...
January 24, 2017: Clinical Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28118461/screening-for-obstructive-sleep-apnea-in-adults-us-preventive-services-task-force-recommendation-statement
#18
Kirsten Bibbins-Domingo, David C Grossman, Susan J Curry, Karina W Davidson, John W Epling, Francisco A R García, Jessica Herzstein, Alex R Kemper, Alex H Krist, Ann E Kurth, C Seth Landefeld, Carol M Mangione, William R Phillips, Maureen G Phipps, Michael P Pignone, Michael Silverstein, Chien-Wen Tseng
Importance: Based on data from the 1990s, estimated prevalence of obstructive sleep apnea (OSA) in the United States is 10% for mild OSA and 3.8% to 6.5% for moderate to severe OSA; current prevalence may be higher, given the increasing prevalence of obesity. Severe OSA is associated with increased all-cause mortality, cardiovascular disease and cerebrovascular events, diabetes, cognitive impairment, decreased quality of life, and motor vehicle crashes. Objective: To issue a new US Preventive Services Task Force (USPSTF) recommendation on screening for OSA in asymptomatic adults...
January 24, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28117120/critical-review-cpap-and-weight-management-of-obstructive-sleep-apnea-cardiovascular-co-morbidities
#19
REVIEW
David W Hudgel
The cardiovascular co-morbidities of obstructive sleep apnea (OSA) are similar to those of obesity. Cardiovascular co-morbidities often are the cause of adverse outcomes in overweight/obese OSA patients. Continuous positive airway pressure (CPAP) therapy resolves the symptoms of OSA, but may, or may not lead to improvement of a given cardiovascular co-morbidity. The impact of CPAP on cardiovascular risk variables, adverse cardiovascular events in overweight/obese OSA patients has been evaluated primarily in prospective, uncontrolled cohort studies...
December 18, 2016: Sleep Medicine Reviews
https://www.readbyqxmd.com/read/28100362/-severe-obstructive-sleep-apnea-hypopnea-syndrome-with-dilated-cardiomyopathy-leading-to-pulmonary-hypertension-case-report-and-literature-review
#20
R K Chen, C Hong, Y M Zhou, A L Kuang, Y T Zhang, S M Qing, C L Liu, N F Zhang
Objective: To study the relationship between dilated cardiomyopathy and obstructive sleep apnea-hypopnea syndrome (OSAHS) and to evaluate the curative effects of continuous positive airway pressure (CPAP) in OSAHS complicated with dilated cardiomyopathy. Methods: We reported one case with the symptom of exertional dyspnea for 1 year and aggravating for 1 month. The patient finally was diagnosed with severe OSAHS complicated with dilated cardiomyopathy leading to pulmonary hypertension. A systematic literature review was performed for similar published cases in Pubmed, Wanfang and CNKI database, using the keywords (obstructive sleep apnea) OR(OSA) OR(OSAHS) AND(dilated cardiomyopathy OR DCM)from January 1990 to May 2016...
January 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
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