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sleep apnea cardiovascular disease

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https://www.readbyqxmd.com/read/28933970/the-importance-of-calprotectin-levels-in-the-obstructive-sleep-apnea-syndrome-severity
#1
Mümtaz Taner Torun, Ethem Ünver, Yusuf Yalçın, Lutfi Kanmaz, Ender Seçkin
BACKGROUND: Obstructive sleep apnea syndrome (OSAS) is mostly seen in adult populations. It is known that increased levels of several inflammatory mediators play roles in OSAS and related comorbidities. Calprotectin is an inflammatory mediator that increases in some diseases such as Bechet's syndrome, bowel diseases and cardiovascular and cerebrovascular diseases. AIMS: The purpose of this study was to investigate whether calprotectin can be used as a biomarker in OSAS by determining the relation between the serum calprotectin levels and OSAS severity...
September 21, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28899518/relationship-between-obstructive-sleep-apnea-and-neuroimaging-signatures-of-cerebral-small-vessel-disease-in-community-dwelling-older-adults-the-atahualpa-project
#2
Oscar H Del Brutto, Robertino M Mera, Mauricio Zambrano, Pablo R Castillo
BACKGROUND/OBJECTIVES: Evidence of a relationship between obstructive sleep apnea (OSA) and neuroimaging signatures of cerebral small vessel disease (SVD) is limited. The present study aimed to evaluate this association in older adults living in rural Ecuador, where small vessel disease is a major pathogenetic mechanism underlying stroke. METHODS: A representative random sample of Atahualpa residents aged ≥60 years enrolled in the Atahualpa Project neuroimaging substudy underwent a single-night diagnostic polysomnography...
September 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28893610/sex-differences-in-the-respiratory-sympathetic-coupling-in-rats-exposed-to-chronic-intermittent-hypoxia
#3
REVIEW
George Miguel P R Souza, Mateus R Amorim, Davi J A Moraes, Benedito H Machado
Obstructive sleep apnea (OSA) is a complex disease in which humans face episodes of intermittent hypoxia and it affects men and women. Patients with OSA present hypertension and sympathetic overactivity among several other dysfunctions. Therefore, one important question remains: are the autonomic dysfunctions associated with OSA similar in male and female? This is an unresolved question since sex factors are overlooked in most clinical and experimental studies. Epidemiological data indicate that sex exerts an important influence in the prevalence of OSA and associated comorbidities, such as hypertension...
September 8, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28890147/obstructive-sleep-apnea-influence-of-hypertension-on-adiponectin-inflammatory-markers-and-dyslipidemia
#4
Mahmoud R Abdel-Fadeil, Azza S Abedelhaffez, Hoda A Makhlouf, Ghada A Al Qirshi
Obstructive sleep apnea (OSA) is a common but often unrecognized condition with potentially serious complications. The aim of this study was to explore the possible mechanisms linking hypertension (HT), a common cardiovascular disease (CVD), with obstructive sleep apnea (OSA) by investigating the levels of morning and evening serum adiponectin, inflammatory markers (TNF-α, IL-6), and lipid profiles in OSA patients with and without HT. Four groups were enrolled in this case-control analytic study: control, OSA, OSA+HT, and HT groups, each of which included 22 subjects...
September 1, 2017: Pathophysiology: the Official Journal of the International Society for Pathophysiology
https://www.readbyqxmd.com/read/28888522/sleep-disordered-breathing-and-heart-failure-what-does-the-future-hold
#5
REVIEW
Martin R Cowie, Angela M Gallagher
Most patients with heart failure (HF) have sleep-disordered breathing (SDB), with central (rather than obstructive) sleep apnea becoming the predominant form in patients with more severe disease. Cyclical apnea and hypopneas are associated with sleep disturbance, hypoxemia, hemodynamic changes, and sympathetic activation. These patients have a worse prognosis than those without SDB. Mask-based therapies of positive airway pressure targeted at SDB can improve measures of sleep quality and can partially normalize the sleep and respiratory physiology...
August 30, 2017: JACC. Heart Failure
https://www.readbyqxmd.com/read/28887782/development-of-acrodat-%C3%A2-a-new-software-medical-device-to-assess-disease-activity-in-patients-with-acromegaly
#6
Aart J van der Lely, Roy Gomez, Andreas Pleil, Xavier Badia, Thierry Brue, Michael Buchfelder, Pia Burman, David Clemmons, Ezio Ghigo, Jens Otto Lunde Jørgensen, Anton Luger, Joli van der Lans-Bussemaker, Susan M Webb, Christian J Strasburger
PURPOSE: Despite availability of multimodal treatment options for acromegaly, achievement of long-term disease control is suboptimal in a significant number of patients. Furthermore, disease control as defined by biochemical normalization may not always show concordance with disease-related symptoms or patient's perceived quality of life. We developed and validated a tool to measure disease activity in acromegaly to support decision-making in clinical practice. METHODS: An international expert panel (n = 10) convened to define the most critical indicators of disease activity...
September 8, 2017: Pituitary
https://www.readbyqxmd.com/read/28878905/severe-obstructive-sleep-apnea-first-screening-with-an-implanted-pacemaker
#7
Marzia Giaccardi, Giuseppe Mascia, Andrea Giomi, Lanfranco Fratoni, Barbara Binazzi, Francesco Gigliotti, Martina Nesti, Massimo Milli
Sleep apnea syndrome (SAS) is a chronic condition associated with cardiovascular disease. In some pacemakers, an advanced algorithm using transthoracic impedance may be used to identify SAS. This algorithm may be also a useful tool for a long-term monitoring helping physicians to optimize therapy, reducing risk factors, and improving therapeutic compliance.
September 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28876375/twenty-four-hour-blood-pressure-in-obese-patients-with-moderate-to-severe-obstructive-sleep-apnea
#8
Claudia M Correa, Ronaldo A Gismondi, Ana Rosa Cunha, Mario F Neves, Wille Oigman
BACKGROUND: Obesity, systemic arterial hypertension (SAH) and obstructive sleep apnea (OSA) are closely related. Up to 70% of patients with OSA may be asymptomatic, and there is evidence that these patients have cardiovascular disease, especially nocturnal SAH. OBJECTIVES: The aim of this study was to evaluate 24-hour blood pressure circadian variation in asymptomatic, obese individuals with moderate-to-severe OSA and compare it with that in individuals with mild OSA or without OSA...
September 4, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28872361/prevalence-of-sleep-apnea-and-cardiovascular-risk-factors-in-patients-with-hypertension-in-a-day-hospital-model
#9
Eduardo Borsini, Magalí Blanco, Martín Bosio, Marcela Schrappe, Glenda Ernst, Daniela Nosetto, Nazarena Gaggioli, Alejandro Salvado, Osvaldo Manuale, Miguel Schiavone
INTRODUCTION: To identify patients at risk for obstructive sleep apnea (OSA) syndrome at a specialized hypertension center, we administered questionnaires and used respiratory polygraphy (RP). RESULTS: We studied 168 patients (64.8% men and 35.2% women). Patients' body mass index (BMI) was 34.7 ± 6.79 and Epworth Sleepiness Scale (ESS) scores were 8.01 for male and 8.92 for women (p = 0.69). RP recordings revealed AHI (Apnea-Hypopnea Index) of 18.03 ± 15...
September 5, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28871193/estradiol-regulates-txnip-and-prevents-intermittent-hypoxia-induced-vascular-injury
#10
Xiao Fei Lan, Xiu Juan Zhang, Ying Ni Lin, Qiong Wang, Hua Jun Xu, Li Na Zhou, Pei Li Chen, Qing Yun Li
Chronic intermittent hypoxia (IH) contributes to obstructive sleep apnea (OSA)-related cardiovascular diseases through increasing oxidative stress. It has been widely recognized that estradiol decreases the risk for cardiovascular disease, but the estrogen replacement therapy is limited for its side effects. Thioredoxin (Trx) and its endogenous inhibitor, thioredoxin-interacting protein (Txnip), are associated with the protective effect of estradiol in some conditions. In this study, we aimed to explore whether estradiol could protect against IH-induced vascular injury, and the possible effect of Trx-1/Txnip in this process...
September 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28865067/predictors-of-cpap-compliance-in-different-clinical-settings-primary-care-versus-sleep-unit
#11
Núria Nadal, Jordi de Batlle, Ferran Barbé, Josep Ramon Marsal, Alicia Sánchez-de-la-Torre, Nuria Tarraubella, Merce Lavega, Manuel Sánchez-de-la-Torre
BACKGROUND: Good adherence to continuous positive airway pressure (CPAP) treatment improves the patient's quality of life and decreases the risk of cardiovascular disease. Previous studies that have analyzed the adherence to CPAP were performed in a sleep unit (SU) setting. The involvement of primary care (PC) in the management of obstructive sleep apnea (OSA) patients receiving CPAP treatment could introduce factors related to the adherence to treatment. OBJECTIVES: The objective was to compare the baseline predictors of CPAP compliance in SU and PC settings...
September 1, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28862983/the-association-of-nov-ccn3-with-obstructive-sleep-apnea-osa-preliminary-evidence-of-a-novel-biomarker-in-osa
#12
Jeremy A Weingarten, Lars Bellner, Stephen J Peterson, Moe Zaw, Puja Chadha, Shailendra P Singh, Nader G Abraham
Obstructive sleep apnea (OSA) has a strong association with cardiovascular and metabolic abnormalities, although the mechanism driving this association is not well established. NOV/CCN3, a multifunctional extracellular matrix protein, may play a mechanistic and/or prognostic role in these associations. We hypothesized that patients with OSA, which primarily affects obese individuals, will have increased levels of NOV, and that NOV can serve as a biomarker in patients to predict OSA as well as metabolic and cardiac risk...
September 1, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/28860787/prevalence-and-predictors-of-sleep-apnea-in-patients-with-stable-coronary-artery-disease-a-cross-sectional-study
#13
Audrius Alonderis, Giedrius Varoneckas, Nijole Raskauskiene, Julija Brozaitiene
BACKGROUND: Sleep apnea (SA) is increasingly recognized as being important in the prognosis of patients with coronary artery disease (CAD); however, symptoms of SA are not easily identified, and as many as 80% of sufferers remain undiagnosed. AIM: This cross-sectional study investigated the prevalence and predictors of SA that may help to increase the awareness and diagnosis of SA in stable CAD patients. MATERIALS AND METHODS: Polysomnography was performed in 772 medically stable CAD patients with untreated SA recruited from the Clinic of Cardiovascular Rehabilitation...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28853425/obstructive-sleep-apnea-syndrome-osas-and-cardiovascular-system
#14
Carolina Lombardi, Eleonora Tobaldini, Nicola Montano, Anna Losurdo, Gianfranco Parati
There is increasing evidence of a relationship between Obstructive Sleep Apnea (OSA) and cardiovascular diseases. The strong association between OSA and arterial hypertension, in particular in patients with resistant hypertension and/or a non-dipping profile, has been extensively reported. The relationship between OSA and high blood pressure (BP) has been found independent from a number of confounders, but several factors may affect this relationship, including age and sex. It is thus important to better assess pathophysiologic and clinical interactions between OSA and arterial hypertension, also aimed at optimizing treatment approaches in OSA and hypertensive patients with co-morbidities...
August 28, 2017: La Medicina del Lavoro
https://www.readbyqxmd.com/read/28845957/sleep-disorders-sleep-related-breathing-disorders
#15
Deepa Burman
Sleep-related breathing disorders or sleep-disordered breathing are characterized by abnormal respiration during sleep. They are grouped into obstructive sleep apnea (OSA), central sleep apnea, sleep-related hypoventilation, and sleep-related hypoxemia disorder. OSA is a common disorder encountered in the family medicine setting that is increasingly being recognized because of the obesity epidemic and greater public and physician awareness. OSA is characterized by recurrent episodes of partial or complete closure of the upper airway resulting in disturbed breathing during sleep...
September 2017: FP Essentials
https://www.readbyqxmd.com/read/28829519/looking-both-ways-before-crossing-the-street-assessing-the-benefits-and-risk-of-opioids-in-treating-patients-at-risk-of-sleep-disordered-breathing-for-pain-and-dyspnea
#16
Mellar P Davis, Bertrand Behm, Diwakar Balachandran
Opioids adversely influence respiration in five distinct ways. Opioids reduce the respiratory rate, tidal volume, amplitude, reflex responses to hypercapnia and hypoxia, and arousability related necessary for respiratory adaptive responses. Opioids cause impairment of upper pharyngeal dilator muscles leading to obstructive apnea. Opioids cause complex sleep disordered breathing (SDB) consisting of central sleep apnea and obstructive sleep apnea. Clinically opioids worsen pre-existing SDB. Recent studies have shown increased morbidity and mortality in patients receiving opioids for chronic noncancer pain and chronic obstructive pulmonary disease, which appear to be related to cardiovascular events, not overdose...
May 2017: Journal of Opioid Management
https://www.readbyqxmd.com/read/28822964/moderate-to-severe-obstructive-sleep-apnea-is-associated-with-telomere-lengthening
#17
Katarzyna Polonis, Virend K Somers, Christiane Becari, Naima Covassin, Phillip J Schulte, Brooke R Druliner, Ruth A Johnson, Krzysztof Narkiewicz, Lisa A Boardman, Prachi Singh
Obstructive sleep apnea (OSA) is associated with cardiometabolic diseases. Telomere shortening is linked to hypertension, diabetes mellitus, and cardiovascular diseases. Because these conditions are highly prevalent in OSA, we hypothesized that telomere length (TL) would be reduced in OSA patients. We identified 106 OSA and 104 non-OSA subjects who underwent polysomnography evaluation. Quantitative PCR was used to measure telomere length in genomic DNA isolated from peripheral blood samples. The association between OSA and TL was determined using unadjusted and adjusted linear models...
August 19, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28822761/down-regulation-of-vascular-ppar-%C3%AE-contributes-to-endothelial-dysfunction-in-high-fat-diet-induced-obese-mice-exposed-to-chronic-intermittent-hypoxia
#18
Yanan Zhang, Chunlian Zhang, Haiou Li, Jingdong Hou
Obstructive sleep apnea (OSA), characterized by chronic intermittent hypoxia (CIH), is associated with endothelial dysfunction. The prevalence of OSA is linked to an epidemic of obesity. CIH has recently been reported to cause endothelial dysfunction in diet-induced obese animals by exaggerating oxidative stress and inflammation, but the underlying mechanism remains unclear. PPAR-γ, a ligand-inducible transcription factor that exerts anti-oxidant and anti-inflammatory effects, is down-regulated in the peripheral tissues in diet-induce obesity...
October 14, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28821224/patients-with-symptoms-and-characteristics-consistent-with-obstructive-sleep-apnea-are-at-a-higher-risk-for-acute-and-subacute-stent-thrombosis-after-percutaneous-coronary-stent-implantation-a-single-center-case-control-study
#19
Yanhua Li, Shanshan Yang, Si Chen, Xinhong Guo, Yundai Chen
BACKGROUND: To determine if obstructive sleep apnea (OSA) is a risk factor for early stent thrombosis (EST; within 30 days) after percutaneous coronary intervention (PCI). METHODS: This case-control study involved 23 patients with angiographically confirmed EST after PCI (case group) and 92 PCI patients (control group) who did not develop stent thrombosis during a 2-year follow-up. Patients with symptoms and characteristics consistent with OSA (hereinafter referred to as OSA) were identified using the Berlin questionnaire, and the general characteristics of the patients and their treatments as well as outcomes were recorded...
August 18, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28820743/sleep-apnea-a-review-of-diagnostic-sensors-algorithms-and-therapies
#20
Mehdi Shokoueinejad, Chris Fernandez, Emily Carroll, Fa Wang, Jake Levin, Sam Rusk, Nick Glattard, Ashley Mulchrone, Xuan Zhang, Ailiang Xie, Mihaela Teodorescu, Jerome Dempsey, John Webster
While public awareness of sleep related disorders is growing, sleep apnea syndrome (SAS) remains a public health and economic challenge. Over the last two decades, extensive controlled epidemiologic research has clarified the incidence, risk factors including the obesity epidemic, and global prevalence of obstructive sleep apnea (OSA), as well as establishing a growing body of literature linking OSA with cardiovascular morbidity, mortality, metabolic dysregulation, and neurocognitive impairment. The US Institute of Medicine Committee on Sleep Medicine estimates that 50-70 million US adults have sleep or wakefulness disorders...
August 18, 2017: Physiological Measurement
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