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https://www.readbyqxmd.com/read/28081532/cardiovascular-events-in-moderately-to-severely-obese-obstructive-sleep-apnea-patients-on-positive-airway-pressure-therapy
#1
Anna Maria Marotta, Jean-Christian Borel, Louis M Galerneau, Renaud Tamisier, Maria R Bonsignore, Jean Louis Pépin
BACKGROUND: In moderately to severely obese patients with obstructive sleep apnea (OSA), the effects of long-term positive airway pressure (PAP) treatment on cardiovascular risk are poorly defined. PURPOSE: To assess the effect of continuous positive airway pressure (CPAP) or noninvasive ventilation (NIV) on the occurrence of cardiovascular events in obese OSA patients. METHODS: We performed a noninterventional observational study in obese OSA patients recruited between 2007 and 2010 at the Sleep Center, University of Grenoble, treated with CPAP or NIV, and followed for 5...
January 13, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28078997/lipoprotein-a-and-cardiovascular-risk-the-show-must-go-on
#2
Niki Katsiki, Khalid Al-Rasadi, Dimitri P Mikhailidis
Lipoprotein (a) [Lp(a)] is an independent but moderate, predictor for coronary heart disease (CHD) prevalence and severity. Several established and emerging cardiovascular (CV) risk factors including age, gender, ethnicity, smoking, dyslipidemia, hypertension, obesity, type 2 diabetes mellitus, alcohol consumption, arterial stiffness and hyperuricemia have been linked to Lp(a) metabolism. Apart from CHD, Lp(a) has been also associated with non-cardiac vascular diseases and diseases associated with increased CV risk such as chronic kidney disease, metabolic syndrome, non-alcoholic fatty liver disease, erectile dysfunction, obstructive sleep apnea syndrome, inflammatory bowel diseases and human immunodeficiency virus infection...
January 12, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28078487/the-role-of-the-nox4-derived-ros-mediated-rhoa-rho-kinase-pathway-in-rat-hypertension-induced-by-chronic-intermittent-hypoxia
#3
Wen Lu, Jing Kang, Ke Hu, Si Tang, Xiufang Zhou, Lifang Xu, Yuanyuan Li, Shuhui Yu
BACKGROUND: Obstructive sleep apnea syndrome, which is a risk factor for resistant hypertension, is characterized by chronic intermittent hypoxia (CIH) and is associated with many cardiovascular diseases. CIH elicits systemic oxidative stress and sympathetic hyperactivity, which lead to hypertension. Rho kinases (ROCKs) are considered to be major effectors of the small GTPase RhoA and have been extensively studied in the cardiovascular field. Upregulation of the RhoA/ROCK signaling cascade is observed in various cardiovascular disorders, such as atherosclerosis, pulmonary hypertension, and stroke...
January 11, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28065687/restless-legs-syndrome-and-cardiovascular-disease-a-research-roadmap
#4
REVIEW
Daniel J Gottlieb, Virend K Somers, Naresh M Punjabi, John W Winkelman
In this paper, we first critically appraise the epidemiologic literature examining the association of restless legs syndrome (RLS) with cardiovascular disease (CVD) and then consider whether lessons learned from the study of cardiovascular consequences of other sleep disorders might inform a research agenda to examine the potential mechanisms of cardiovascular morbidity of RLS. Cross-sectional and longitudinal studies are both mixed as to whether there is a meaningful association of RLS and CVD. On the other hand, numerous cross-sectional and longitudinal observational studies have shown a strong association of obstructive sleep apnea (OSA) with CVD risk...
October 27, 2016: Sleep Medicine
https://www.readbyqxmd.com/read/28057852/endothelin-1-and-et-receptors-impair-left-ventricular-function-by-mediated-coronary-arteries-dysfunction-in-chronic-intermittent-hypoxia-rats
#5
Jin-Wei Wang, Ai-Ying Li, Qiu-Hong Guo, Ya-Jing Guo, James W Weiss, En-Sheng Ji
Obstructive sleep apnea (OSA) results in cardiac dysfunction and vascular endothelium injury. Chronic intermittent hypoxia (CIH), the main characteristic of OSAS, is considered to be mainly responsible for cardiovascular system impairment. This study is aimed to evaluate the role of endothelin-1(ET-1) system in coronary injury and cardiac dysfunction in CIH rats. In our study, Sprague-Dawley rats were exposed to CIH (FiO2 9% for 1.5 min, repeated every 3 min for 8 h/d, 7 days/week for 3 weeks). After 3 weeks, the left ventricular developed pressure (LVDP) and coronary resistance (CR) were measured with the langendorff mode in isolated hearts...
January 2017: Physiological Reports
https://www.readbyqxmd.com/read/28056799/epidemiological-characteristics-and-gender-specific-differences-of-obstructive-sleep-apnea-in-a-chinese-hypertensive-population-a-cross-sectional-study
#6
Anping Cai, Yingling Zhou, Jiawei Zhang, Qi Zhong, Rui Wang, Ling Wang
BACKGROUND: Obstructive sleep apnea (OSA) is associated with an increase in the prevalence and incidence of hypertension and cardiovascular diseases. Data about epidemiological characteristics of OSA in Chinese hypertensive populations is limited. METHODS: Hypertensive subjects without a prior diagnosis of OSA were recruited, and the apnea-hyponea index (AHI) was assessed by polysomnography. Comparisons were performed between subjects without OSA and with different degrees of OSA...
January 5, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28052522/assessment-of-carotid-artery-intima-media-thickness-in-patients-with-obstructive-sleep-apnea
#7
Li-Jen Liao, Tsung-Yi Cho, Tsung-Wei Huang
OBJECTIVE: This study compares the carotid intima-media thickness (CIMT) in different severity of obstructive sleep apnea (OSA) patients, and assesses the role of OSA in carotid artery vasculopathy with control of multiple co-morbidities. STUDY DESIGN: Prospective case-control study SETTING: Tertiary referral center PARTICIPANTS: This study recruited 36 volunteers without the complaints of sleep-disordered breathing, 27 patients with mild-moderate OSA and 39 patients with severe OSA...
January 4, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28041720/atrial-fibrillation-is-a-major-cause-of-stroke-in-apneic-patients-a-prospective-study
#8
M Poli, P Philip, J Taillard, S Debruxelles, P Renou, J M Orgogozo, F Rouanet, I Sibon
OBJECTIVES: Large prospective studies have established that sleep-disordered breathing (SDB) is associated with an increased incidence of cardiovascular and cerebrovascular diseases. Heterogeneous results have been published about SDB and ischaemic stroke mechanism. The aim of this study was to evaluate the relationship between poststroke apneic syndrome and stroke aetiologies according to the ASCO classification. METHODS: A total of 134 patients with acute ischaemic cerebrovascular events were prospectively included...
March 4, 2016: Sleep Medicine
https://www.readbyqxmd.com/read/28040290/obstructive-sleep-and-atrial-fibrillation-pathophysiological-mechanisms-and-therapeutic-implications
#9
REVIEW
Christos A Goudis, Dimitrios G Ketikoglou
Atrial fibrillation (AF) is the commonest arrhythmia in clinical practice and is associated with increased cardiovascular morbidity and mortality. Obstructive sleep apnea (OSA), a common breathing disorder, is an independent risk factor for AF. Several pathophysiological mechanisms, including apnea-induced hypoxia, intrathoracic pressure shifts, sympathovagal imbalance, atrial remodeling, oxidative stress, inflammation and neurohumoral activation have been implicated in the occurrence of AF in OSA patients...
December 22, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28039190/endurance-training-attenuates-the-increase-in-peripheral-chemoreflex-sensitivity-with-intermittent-hypoxia
#10
Amanda J Miller, Charity L Sauder, Aimee E Cauffman, Cheryl A Blaha, Urs A Leuenberger
Patients with heart failure and sleep apnea have greater chemoreflex sensitivity, presumably due to intermittent hypoxia (IH), and this is predictive of mortality. We hypothesized that endurance training would attenuate the effect of IH on peripheral chemoreflex sensitivity in healthy humans. Fifteen young healthy subjects (9 female, 26 ± 1 years) participated. Between visits, 11 subjects underwent eight weeks of endurance training that included running four times/week at 80% predicted max heart rate and interval training, and 4 control subjects did not change activity...
December 30, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28029756/when-and-why-to-treat-the-child-who-snores
#11
Hui-Leng Tan, Maria Luz Alonso Alvarez, Marina Tsaoussoglou, Silke Weber, Athanasios G Kaditis
Obstructive sleep-disordered breathing (SDB) can result in cardiovascular and neurocognitive morbidity as well as adversely affect behavior, growth, quality of life, and nocturnal continence. This article summarizes the latest evidence regarding the morbidity related to obstructive SDB, commenting on the impact of severity of obstruction, that is, the difference in effects seen of moderate to severe obstructive sleep apnea syndrome (OSAS) compared to those of mild OSAS or primary snoring. The impact of therapy is discussed, focusing on which children are likely to benefit from treatment interventions; namely those with moderate or severe OSAS irrespective of the presence of morbidity, children with mild OSAS with associated morbidity or predictors of SDB persistence such as obesity, and children with complex conditions accompanied by upper airway obstruction like craniosynostosis and Prader-Willi syndrome...
December 28, 2016: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28017934/association-between-sleep-disordered-breathing-and-electrocardiographic-markers-of-atrial-abnormalities-the-mesa-study
#12
Younghoon Kwon, Jeffrey R Misialek, Daniel Duprez, Alvaro Alonso, David R Jacobs, Susan R Heckbert, Susan Redline, Elsayed Z Soliman
AIMS: Electrocardiographic (ECG) markers of left atrial (LA) abnormalities have been linked to increased risk of atrial fibrillation (AF). Sleep disordered breathing (SDB) has been associated with increased risk of AF. We aimed to examine the association of ECG markers of LA abnormalities with SDB. METHODS AND RESULTS: 1546 participants (mean age 67.2 years, 53.4% women, and 63.3% non-whites) from the Multi-Ethnic Study of Atherosclerosis Exam 5 Sleep ancillary study were included in this analysis...
December 25, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28012784/positional-modification-techniques-for-supine-obstructive-sleep-apnea-a-systematic-review-and-meta-analysis
#13
REVIEW
Hayley Barnes, Bradley A Edwards, Simon A Joosten, Matthew T Naughton, Garun S Hamilton, Eli Dabscheck
This review aimed to determine the effectiveness of positional modification techniques in preventing supine sleep, sleep-disordered breathing and other clinically important outcomes in patients with supine obstructive sleep apnea (OSA). Randomized controlled trials comparing positional modification techniques with any other therapy or placebo were included. Electronic searches of databases including CENTRAL, MEDLINE, CINAHL, Embase, and Web of Science up to April 2016 were performed. Meta-analysis was undertaken where possible...
November 18, 2016: Sleep Medicine Reviews
https://www.readbyqxmd.com/read/27994605/the-triad-of-sleep-apnea-hypertension-and-chronic-kidney-disease-a-spectrum-of-common-pathology
#14
REVIEW
Fahad Aziz, Kunal Chaudhary
Obstructive sleep apnea (OSA), hypertension, and chronic kidney disease (CKD) are different entities and are generally managed individually most of the time. However, CKD, OSA, and hypertension share many common risk factors and it is not uncommon to see this complex triad together. In fact, they share similar pathophysiology and have been interlinked with each other. The common pathophysiology includes chronic volume overload, hyperaldosteronism, increased sympathetic activity, endothelial dysfunction, and increased inflammatory markers...
November 2016: Cardiorenal Medicine
https://www.readbyqxmd.com/read/27992566/the-accuracy-of-portable-monitoring-in-diagnosing-significant-sleep-disordered-breathing-in-hospitalized-patients
#15
Swamy Nagubadi, Rohit Mehta, Mamoun Abdoh, Mohammedumer Nagori, Stephen Littleton, Renaud Gueret, Aiman Tulaimat
BACKGROUND: Polysomnograms are not always feasible when sleep disordered breathing (SDB) is suspected in hospitalized patients. Portable monitoring is a practical alternative; however, it has not been recommended in patients with comorbidities. OBJECTIVE: We evaluated the accuracy of portable monitoring in hospitalized patients suspected of having SDB. DESIGN: Prospective observational study. SETTING: Large, public, urban, teaching hospital in the United States...
2016: PloS One
https://www.readbyqxmd.com/read/27990845/the-effect-of-obstructive-sleep-apnea-treatment-on-cardiovascular-outcomes
#16
Christine Parsons, Farouk Mookadam, Martina Mookadam
No abstract text is available yet for this article.
January 2017: Future Cardiology
https://www.readbyqxmd.com/read/27988205/high-incidence-of-obstructive-sleep-apnea-syndrome-in-patients-with-late-onset-epilepsy
#17
Aude Maurousset, Bertrand De Toffol, Julien Praline, Julien Biberon, Nadège Limousin
OBJECTIVES: The objective of the present study was to evaluate the prevalence of obstructive sleep apnea (OSA) in patients with late-onset epilepsy (LOE) who were considered at higher risk of cardiovascular disease. METHODS: Polysomnography was performed on 27 patients with LOE. Berlin questionnaires and Epworth sleepiness score were performed on all patients. We compared clinical, demographic and anthropometric characteristics, questionnaire scores on the patients with no or mild OSA (group 1) and the patients with moderate or severe OSA (group 2)...
December 14, 2016: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/27938920/impact-of-different-hypopnea-definitions-on-obstructive-sleep-apnea-severity-and-cardiovascular-mortality-risk-in-women-and-elderly-individuals
#18
Francisco Campos-Rodriguez, Miguel A Martínez-García, Nuria Reyes-Nuñez, Maria J Selma-Ferrer, Naresh M Punjabi, Ramon Farre
OBJECTIVE: To assess the impact of three hypopnea definitions on the severity classification of obstructive sleep apnea (OSA) and its association with cardiovascular mortality risk in women and elderly individuals. METHODS: We analyzed two Spanish clinical cohorts (1116 women and 939 elderly individuals) who were studied for suspicion of OSA between 1998 and 2007. A calibration model was used to apply different definitions of hypopnea to our two cohorts. Hypopnea was defined as a 30-90% reduction in oronasal flow for ≥10 s followed by (1) ≥4% fall in oxyhemoglobin saturation-AHI4%; (2) ≥3% fall in oxyhemoglobin saturation-AHI3%; or (3) ≥3% fall in oxyhemoglobin saturation or an event-related arousal-AHI3%a...
November 2016: Sleep Medicine
https://www.readbyqxmd.com/read/27936906/metabolic-consequences-of-obstructive-sleep-apnea-in-adolescents-with-obesity-a-systematic-literature-review-and-meta-analysis
#19
Zachary W Patinkin, Richard Feinn, Melissa Santos
BACKGROUND: Adolescents who are obese are at high risk of developing obstructive sleep apnea (OSA). Although there is clear evidence associating OSA with metabolic dysfunction in adults, the evidence is less clear cut with adolescents. The purpose of this review was determine the association of sleep apnea with dyslipidemia, insulin resistance, cardiovascular disease risk, nonalcoholic fatty liver disease, and difficulty with weight loss in adolescents. METHODS: A systematic literature review using PubMed, Scopus, CINAHL, Google Scholar, and PsycINFO was performed and articles were screened and reviewed with an a priori protocol...
December 12, 2016: Childhood Obesity
https://www.readbyqxmd.com/read/27931299/association-of-allergy-immunology-and-obstructive-sleep-apnea
#20
Charles J Calais, Brian D Robertson, Douglas E Beakes
Obstructive sleep apnea (OSA) is characterized by repetitive upper airway collapse that results in nonrefreshing sleep, excessive daytime sleepiness, and, ultimately, adverse consequences on quality of life, the cardiovascular system, and neurocognitive performance. OSA has traditionally been linked to body habitus (obesity and increased neck circumference), racial demographics, alcohol, tobacco, and sedative use. Numerous other conditions are linked to OSA, which may have clinical relevance. Specifically, asthma and nasal obstructive syndromes, e...
November 2016: Allergy and Asthma Proceedings:
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