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Obesity osa

Joanne Avraam, Rosie Bourke, John A Trinder, Christian L Nicholas, Danny Brazzale, Fergal J O'Donoghue, Peter D Rochford, Amy S Jordan
Respiratory magnetometers are increasingly being used in sleep studies to measure changes in end expiratory lung volume (EELV), including in obese obstructive sleep apnea (OSA) patients. Despite this, the accuracy of magnetometers has not been confirmed in obese patients, nor compared between genders. Thus, we compared spirometer-measured and magnetometer-estimated lung volume and tidal volume changes during voluntary end-expiratory lung volume changes of 1.5L, 1L, and 0.5L above, and 0.5L below, functional respiratory capacity (FRC) in supine normal weight (BMI<25kg/m(2)) and healthy obese (BMI>30kg/m(2)) men and women...
October 7, 2016: Journal of Applied Physiology
Michael G Ziegler, Milos Milic
PURPOSE OF REVIEW: The sympathetic nervous system (SNS) mediates short-term increases in blood pressure. Evidence that psychosocial stress leads to chronic hypertension is mixed. The SNS activation found in obstructive sleep apnea (OSA), caregiving for a severely demented spouse, and obesity more specifically address whether SNS activation might lead to the metabolic syndrome and hypertension. RECENT FINDINGS: Obesity is associated with both increased SNS electrical activity and plasma norepinephrine...
October 15, 2016: Current Opinion in Nephrology and Hypertension
Mohan Raizada
Hypertension (HTN) is the most prevalent modifiable risk for cardiovascular disease (CVD) and disorders directly influencing CVD (i.e. obesity, diabetes, chronic kidney disease, obstructive sleep apnea, etc.). About one billion people worldwide have HTN, with American adults having 90% lifetime risk of developing HTN. Despite aggressive campaign for lifestyle changes and advances in drug therapy, HTN remains an immense health, emotional, and economic challenge. This is due, in part, to the fact that ∼50% of HTN patients' blood pressure remains uncontrolled and ∼20% of HTN patients are resistant to or require > antihypertensive drugs...
September 2016: Journal of Hypertension
Nanfang Li, Xiaoguang Yao, Ling Zhou, Suofeiya Abulikem, Delian Zhang, Guijuan Chang, Keming Zhou
OBJECTIVE: To investigated the prevalence of primary aldosteronism (PA) and compare the pattern of PA patients with essential hypertension regarding clinical data in general hypertensive patients in Xinjiang of China. DESIGN AND METHOD: Consecutive hypertensive patients referred to Hypertension Center of Xinjiang from 2009 to 2011 underwent a diagnostic protocol composed of measurement of Na and K in serum and 24-h urine, sitting plasma renin activity, and aldosterone at baseline and after saline loading test...
September 2016: Journal of Hypertension
Wei-Jei Lee
Obesity is a pan-endemic health problem in both developed and developing countries, in both western and eastern countries. It increases risk for many common diseases, including type 2 diabetes, dyslipidemia, hypertension, obstructive sleep apnea, heart disease, stroke, asthma, osteoarthritis, cancers and depression etc.. Although the incidence of obesity in Asia is relatively low, Asian patients tend to have similar incidence of obesity related metabolic syndrome at lower BMI level comparing to Caucasians because of central obesity...
September 2016: Journal of Hypertension
Paula C Jordani, Letícia B Campi, Gabriela Z Circeli, Corine Visscher, Marcelo E Bigal, Daniela A G Gonçalves
We conducted a clinical cross-sectional study to evaluate the association between obesity and the presence of painful temporomandibular disorders (TMD), controlling for age, gender, presence of migraine, depression, non-specific somatic symptoms and obstructive sleep apnea syndrome (OSAS) in an adult population METHODS: A total of 299 individuals (76.6% women) with a mean age of 36.8 ± 12.8 years were evaluated. TMD were classified using the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD)...
October 17, 2016: Journal of Oral Rehabilitation
Domenico Maurizio Toraldo, Michele De Benedetto, Luana Conte, Francesco De Nuccio
Obstructive sleep apnea (OSA) is characterized by repetitive interruptions of breathing, causing a Chronic Intermittent Hypoxia (CIH) that can be a key step in the development and progression of cardiovascular diseases. Nowadays, in fact, there is scientific evidence showing the close relationship between OSA and atherosclerosis, even in those patients who do not show co-morbidities such as hypertension, diabetes, high levels of low-density lipoprotein (LDL), cigarette smoking and obesity, which normally are able to activate the endothelium...
October 7, 2016: Current Vascular Pharmacology
Yu-Shu Huang, Christian Guilleminault, Fang-Ming Hwang, Chuan Cheng, Cheng-Hui Lin, Hsueh-Yu Li, Li-Ang Lee
Pediatric obstructive sleep apnea (OSA) is associated with chronic systemic inflammation and with cognitive impairments. This study aimed to investigate the status of proinflammatory cytokines, particularly interleukin 17 (IL-17) and interleukin 23 (IL-23) and cognition in pediatric OSA.Controls and OSA children participated in the study. Exclusion criteria were adenotonsillectomy, heart, neurological and severe psychiatric diseases, craniofacial syndromes, and obesity. Polysomnogram was followed by serum testing for inflammatory markers and neurocognitive tests such as continuous performance task (CPT) and Wisconsin card sorting test, questionnaires, analyses of plasma high-sensitivity C-reactive protein (HS-CRP), tumor necrosis factor alpha (TNF-α), interleukin 1 (IL-1), interleukin 6 (IL-6), IL-17, and IL-23...
October 2016: Medicine (Baltimore)
E Sh Bairambekov, A V Pevzner, A Yu Litvin, O A Fomicheva
The case history of a 46-year-old patient with obstructive sleep apnea syndrome was analyzed. The examination revealed fourth-degree obesity, prior myocardial infarction, persistent atrial fibrillation with nocturnal asystoles lasting as long as 14.3 sec. During selected drug therapy and regular application of secondary ventilation (continuous positive airway pressure (CPAP) therapy) used to correct breathing problems, there was a reduction in the signs of circulatory deficiency, cessation of cardiac pauses, and recovery of sinus rhythm...
2016: Terapevticheskiĭ Arkhiv
Diane C Lim, Allan I Pack
Obstructive sleep apnea (OSA) is a worldwide disease whose prevalence is increasing as obesity rates increase. The link between obesity and OSA is likely to be the deposition of fat in the tongue, compromising upper airway size. The role of obesity varies in different ethnic groups, with Chinese being particularly sensitive to increases in weight. OSA lends itself to a personalized approach to diagnosis and therapy. For example, different clinical OSA subtypes likely benefit from therapy in different ways. Hypoglossal nerve stimulation is a useful second-line therapy in patients who cannot tolerate continous positive airway pressure (CPAP) machines or intraoral devices...
October 5, 2016: Annual Review of Medicine
Maria Pia Villa, Hanaa Shafiek, Melania Evangelisti, Jole Rabasco, Manuela Cecili, Marilisa Montesano, Mario Barreto
The sleep clinical record (SCR) may be a valid method for detecting children with obstructive sleep apnoea (OSA). This study aimed to evaluate whether there were differences in SCR depending on age and to identify the possible risk factors for OSA development. We enrolled children with sleep disordered breathing between 2013 and 2015, and divided them according to age into preschool- and school-age groups. All patients underwent SCR and polysomnography. OSA was detected in 81.1% and 83.6% of preschool- and school-age groups, respectively...
January 2016: ERJ Open Research
Yanli Li, Xueqin Li, Dejun Sun, Shaoxi Cai
OBJECTIVE: Obesity is involved in the pathogenesis of obstructive sleep apnea syndrome (OSAS). Irisin, a recently discovered myokine, protects the mice from obesity. This study aims to determine the association of serum irisin concentrations with the presence and severity of OSAS. METHODS: This cross-sectional investigation was performed in 165 male OSAS patients and 98 healthy male subjects. Serum irisin concentrations were assessed using an enzyme-linked immunosorbent assay kit...
October 11, 2016: Journal of Clinical Laboratory Analysis
Raouf Amin, Narong Simakajornboon, Rhonda Szczesniak, Thomas Inge
BACKGROUND: Obstructive sleep apnea (OSA) associated with obesity is known to improve after bariatric surgery, but little is known about early changes in this condition after surgery. OBJECTIVES: To study the clinical course of OSA after bariatric surgery SETTING: Children's hospital in the United States METHODS: Adolescents and young adults with obstructive sleep apnea undergoing vertical sleeve gastrectomy (n = 6) or gastric bypass (n = 1) were enrolled in this prospective study...
May 30, 2016: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
Yao Wang, Xiaoyan Yi, Qifu Li, Jun Zhang, Zhihong Wang
BACKGROUND: This systematic review was performed to compare the effectiveness and safety of SG in the obese elderly patients with the young ones. METHODS: Cohort studies that compared outcomes among old and young patients who had undergone SG were included. Summary odds ratios were estimated using a random effect model. RESULTS: Eleven studies were included. Old patients had a worse outcome in percentage of excess weight loss than the young ones (SMD -0...
October 6, 2016: Obesity Surgery
Nuria Vilarrasa, Miguel Angel Rubio, Inka Miñambres, Lillian Flores, Assumpta Caixàs, Andrea Ciudin, Marta Bueno, Pedro Pablo García-Luna, María D Ballesteros-Pomar, Marisol Ruiz-Adana, Albert Lecube
BACKGROUND: This study aims to describe the long-term outcomes of bariatric surgery in a cohort of patients with type 1 diabetes (T1DM). METHODS: Thirty-two patients with T1DM and initial BMI of 41.3 ± 4.8 kg/m(2) were studied, 18.7 % undergoing duodenal switch (DS), 34.4 % gastric bypass, and 46.9 % sleeve gastrectomy and followed-up after surgery for 4.6 ± 2.6 years. Changes in BMI, HbA1c, insulin requirements, evolution of comorbidities, and microvascular complications were registered annually after surgery...
October 5, 2016: Obesity Surgery
Jong In Jeong, Seonhye Gu, Juhee Cho, Sang Duk Hong, Su Jin Kim, Hun-Jong Dhong, Seung-Kyu Chung, Hyo Yeol Kim
OBJECTIVE: Considering the mechanisms by which obesity affects obstructive sleep apnea syndrome (OSAS) and the differences of fat distribution depending on gender, associations between anthropometric parameters, and OSAS may differ depending on gender or sleep position. We analyzed the impact of gender and sleep position on the relationship between fat distribution and development of OSAS. METHODS: One thousand thirty-two consecutive subjects were analyzed. Recorded anthropometric measurements and overnight polysomnographic data of the subjects were reviewed retrospectively...
October 5, 2016: Sleep & Breathing, Schlaf & Atmung
Fernando R Carvalho, Débora A Lentini-Oliveira, Lucila Bf Prado, Gilmar F Prado, Luciane Bc Carvalho
BACKGROUND: Apnoea is a breathing disorder marked by the absence of airflow at the nose or mouth. In children, risk factors include adenotonsillar hypertrophy, obesity, neuromuscular disorders and craniofacial anomalies. The most common treatment for obstructive sleep apnoea syndrome (OSAS) in childhood is adeno-tonsillectomy. This approach is limited by its surgical risks, mostly in children with comorbidities and, in some patients, by recurrence that can be associated with craniofacial problems...
October 5, 2016: Cochrane Database of Systematic Reviews
Yingjun Qian, Huajun Xu, Yuyu Wang, Hongliang Yi, Jian Guan, Shankai Yin
INTRODUCTION: Obstructive sleep apnea (OSA) has been suggested to be associated with a high risk of metabolic syndrome (MS). However, results on whether the association between OSA and risk of MS is independent of obesity, and the effect of nocturnal intermittent hypoxia (IH) on MS, are conflicting. Our purpose was to estimate the magnitude of the independent association between OSA and risk of MS and further explore whether nocturnal IH in OSA plays a role in MS risk. MATERIAL AND METHODS: The PubMed and EMBASE databases were systematically searched (until January 21, 2015) for available observational evidence...
October 1, 2016: Archives of Medical Science: AMS
Bojan Gavrilovic, T Douglas Bradley, Daniel Vena, Owen D Lyons, Joseph M Gabriel, Milos R Popovic, Azadeh Yadollahi
OBJECTIVES: Obstructive sleep apnea (OSA) is highly prevalent in patients with fluid-retaining conditions. Using bioimpedance measurements, previous studies have shown that the greater the amount of fluid redistributed from the legs to the neck overnight, the greater the severity of OSA. Our objective was to investigate factors that predispose the development or worsening of OSA in response to experimental fluid overload. METHODS: Fifteen normotensive and non-obese adult men with and without OSA underwent polysomnography (PSG) during which normal saline was infused intravenously at a minimal rate to keep the vein open (control) or as a bolus of 22 ml/kg body weight (approximately 2 L) in a random order and crossed over after a week...
July 2016: Sleep Medicine
Tetyana Kendzerska, Richard S Leung, Andrea S Gershon, George Tomlinson, Najib Ayas
RATIONALE: The inter-relationships between obstructive sleep apnea (OSA) and obesity are complex and bidirectional; however, the current evidence regarding their combined effect o cardiovascular risk is limited and conflicting. Animal studies suggest that obesity may exacerbate the cardiovascular consequences of intermittent hypoxemia. OBJECTIVES: In this historical observational study, we investigated whether obesity increases the effect of nocturnal hypoxemia on the incidence of cardiovascular events in adults with suspected OSA...
September 30, 2016: Annals of the American Thoracic Society
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