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https://www.readbyqxmd.com/read/29775001/-expression-and-significance-of-serum-hepatocyte-growth-factor-and-myeloperoxidase-in-patients-with-obstructive-sleep-apnea-hypopnea-syndrome
#1
L B Liao, J M Zhai, G G Chen, Z E Ma, X B Yang, J G Zhang
Objective: The aim of this study is to explore the expression and significance of serum HGF and MPO in patients with obstructive sleep apnea hypopnea syndrome (OSAHS) in adults. Method: Ninety-six cases of OSAHS patients diagnosed by PSG were divided into 3 groups: Heavy, medium and light according to the range of AHI; 32 cases of outpatients were healthy persons as the control group. The serum HGF and MPO were determined by ELISA; HGF and MPO were measured after comprehensive treat with CPAP in patients with severe OSAHS, and the correlation between HGF, MPO and PSG were analyzed...
June 5, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29770919/dl-propargylglycine-protects-against-myocardial-injury-induced-by-chronic-intermittent-hypoxia-through-inhibition-of-endoplasmic-reticulum-stress
#2
Xiufang Zhou, Si Tang, Ke Hu, Zhan Zhang, Pei Liu, Yuchuan Luo, Jing Kang, Lifang Xu
BACKGROUND: Chronic intermittent hypoxia (CIH), an important basis of the pathogenesis of organ damage induced by obstructive sleep apnea syndrome (OSAS), is associated with myocardial injury, such as left ventricular dysfunction, apoptosis, and oxidative stress. Endogenous hydrogen sulfide (H2 S) plays an important role in maintaining cardiovascular functions. Many studies have demonstrated that exogenous H2 S has protective effects against myocardial injury induced by various cardiovascular diseases, and inhibiting the generation of endogenous H2 S has opposite effects...
May 16, 2018: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29765510/correlation-between-metabolic-syndrome-and-sleep-apnea
#3
REVIEW
Alejandro Castaneda, Edgar Jauregui-Maldonado, Iqbal Ratnani, Joseph Varon, Salim Surani
The so-called "metabolic syndrome" (MS), constitutes a cluster of metabolic and cardiovascular abnormalities, including fasting glucose, blood pressure, triglycerides, high density lipoprotein cholesterol (HDL-C), and waist circumference that arise from insulin resistance. Obstructive sleep apnea (OSA) syndrome is characterized by recurrent episodes of partial or complete obstruction of the upper airway, involving cessation or significant decreased airflow, with intermittent hypoxemia, frequent arousals from sleep and recurrent oxyhemoglobin desaturations that interfere with normal sleep patterns generating difficulty falling asleep, unrefreshing sleep and loud snoring...
April 15, 2018: World Journal of Diabetes
https://www.readbyqxmd.com/read/29763267/top-20-research-studies-of-2017-for-primary-care-physicians
#4
Mark H Ebell, Roland Grad
Based on systematic surveillance of more than 110 medical journals, 247 studies met criteria as POEMs (patient-oriented evidence that matters) in 2017. Members of the Canadian Medical Association identified 20 of these POEMs as most relevant to practice. This article reviews the clinical questions and bottom-line answers from these studies. Blood pressure should be measured after a period of rest, using a bare arm, and orthostatic blood pressure is more predictive when measured after one minute of standing rather than three minutes...
May 1, 2018: American Family Physician
https://www.readbyqxmd.com/read/29762755/obstructive-sleep-apnea-during-rem-sleep-is-associated-with-early-signs-of-atherosclerosis-in-women
#5
Mirjam Ljunggren, Eva Lindberg, Karl A Franklin, Patrik Öhagen, Marita Larsson, Jenny Theorell-Haglöw, Tord Naessén
Study Objectives: While obstructive sleep apnea (OSA) is associated with overall cardiovascular disease and mortality, the association with atherosclerotic cardiovascular disease is less clear, especially in women. Recently, it has been suggested that OSA during REM sleep, associated with long apneas and deep desaturations, could have severe cardio-metabolic consequences. The aim of this study was to investigate whether OSA during REM sleep is associated with early signs of atherosclerosis in a population-based sample of women...
May 14, 2018: Sleep
https://www.readbyqxmd.com/read/29748792/the-independent-and-combined-effects-of-respiratory-events-and-cortical-arousals-on-the-autonomic-nervous-system-across-sleep-stages
#6
Jiuxing Liang, Xiangmin Zhang, Xiaomin He, Li Ling, Chunyao Zeng, Yuxi Luo
PURPOSE: During sleep, respiratory events readily modulate the autonomic nervous system (ANS). Whether such modulation is caused by the respiratory event itself or the cortical arousal that follows and whether these influences differ across sleep stages are not clear. Thus, we aimed to study the independent and combined effects of respiratory events and cortical arousals on the ANS across sleep stages. METHODS: We recruited 22 male patients with sleep apnea-hypopnea syndrome (SAHS) and analyzed the differences in the indices of heart rate variability among normal respiration (NR), pathological respiratory events without cortical arousals (PR), cortical arousals without respiratory events (CA), and the coexistence of PR and CA (PR&CA), by sleep stage...
May 10, 2018: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29746617/a-wake-up-call-for-human-immunodeficiency-virus-hiv-providers-obstructive-sleep-apnea-in-people-living-with-hiv
#7
Robert L Owens, Charles B Hicks
Obstructive sleep apnea (OSA) is defined by repetitive collapse of the upper airway during sleep leading to transient hypoxemia and arousals from sleep. Surges in sympathetic activity, repeated oxygen desaturation, and sleep fragmentation can lead to cardiovascular (eg, myocardial infarction) and neurocognitive (eg, excessive daytime sleepiness) consequences. Emerging data suggest that OSA is common in people living with human immunodeficiency virus (PLWH) and that traditional risk factors for OSA, such as obesity, are not highly predictive of OSA in PLWH...
May 9, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29745973/the-prevalence-of-obstructive-sleep-apnea-in-patients-with-atrial-fibrillation
#8
Asmaa M Abumuamar, Paul Dorian, David Newman, Colin M Shapiro
BACKGROUND: Obstructive sleep apnea (OSA) is a systemic disorder associated with significant cardiovascular complications. OSA may play a role in the initiation and worsening of atrial fibrillation (AF). This study aimed to determine the prevalence and clinical predictors of OSA in patients with AF. HYPOTHESIS: OSA is underdiagnosed in a large number of patients with AF and may not be predicted by conventional clinical indices. METHODS: Consecutive nonselected patients with AF were recruited from different arrhythmia clinics in Toronto, Ontario, Canada...
May 10, 2018: Clinical Cardiology
https://www.readbyqxmd.com/read/29742365/association-between-obstructive-sleep-apnea-and-cardiovascular-risk-factors-variation-by-age-sex-and-race-the-multi-ethnic-study-of-atherosclerosis-mesa
#9
Glaucylara Reis Geovanini, Rui Wang, Jia Weng, Nancy S Jenny, Steven Shea, Matthew Allison, Peter Libby, Susan Redline
RATIONALE: The association between obstructive sleep apnea (OSA) and cardiovascular disease (CVD) is complex, bi-directional, and may vary across groups. Understanding what cardiovascular risk factors vary in their relationship to OSA across population groups may improve the knowledge of the OSA-related CVD susceptibility. OBJECTIVE: To better understand the heterogeneity of associations, we assessed whether associations of OSA with cardiovascular risk factors vary by age, sex, and race/ethnicity...
May 9, 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29742297/advances-in-cellular-and-integrative-control-of-oxygen-homeostasis-within-the-central-nervous-system
#10
Jan-Marino Ramirez, Liza Severs, Sanja C Ramirez, Ibis M Agosto-Marlin
Mammals must continuously regulate the levels of O2 and CO2 , which is particularly important for the brain. Failure to maintain adequate O2 /CO2 homeostasis has been associated with numerous disorders including sleep apnea, Rett syndrome, and sudden infant death syndrome (SIDS). But, O2 /CO2 homeostasis poses major regulatory challenges, even in the healthy brain. Neuronal activities change in a differentiated, spatially and temporally complex manner, which is reflected in equally complex changes in O2 demand...
May 9, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29735909/influence-of-gender-on-associations-of-obstructive-sleep-apnea-symptoms-with-chronic-conditions-and-quality-of-life
#11
Sarah Appleton, Tiffany Gill, Anne Taylor, Douglas McEvoy, Zumin Shi, Catherine Hill, Amy Reynolds, Robert Adams
Women are less likely than men to be diagnosed with obstructive sleep apnea (OSA). We examined contemporary gender differences in symptoms, health status, and quality of life associated with diagnosed OSA and OSA symptoms in a population-based sample. A 2015 postal/on-line questionnaire of 2889 active participants of The North West Adelaide Health Study (response rate = 54%, male n = 704; female n = 856; age 30⁻100 years) assessed previously diagnosed OSA, OSA symptoms, insomnia, doctor-diagnosed medical conditions, and the SF-36...
May 7, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29734990/exosomal-cargo-properties-endothelial-function-and-treatment-of-obesity-hypoventilation-syndrome-a-proof-of-concept-study
#12
Rakesh Bhattacharjee, Abdelnaby Khalyfa, Ahamed A Khalyfa, Babak Mokhlesi, Leila Kheirandish-Gozal, Isaac Almendros, Eduard Peris, Atul Malhotra, David Gozal
STUDY OBJECTIVES: Longitudinal studies support the usage of positive airway pressure (PAP) therapy in treating obstructive sleep apnea (OSA) to improve cardiovascular disease. However, the anticipated benefit is not ubiquitous. In this study, we elucidate whether PAP therapy leads to immediate improvements on endothelial function, a subclinical marker of cardiovascular status, by examining the effect of circulating exosomes, isolated from patients before and after PAP therapy, on naive endothelial cells...
April 30, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29731500/sleep-disordered-breathing-a-real-therapeutic-target-for-hypertension-pulmonary-hypertension-ischemic-heart-disease-and-chronic-heart-failure
#13
Takaaki Nakamoto
Sleep-disordered breathing (SDB) is a risk factor for cardiovascular disease including acute coronary syndrome and acute myocardial infarction, and treating SDB prevents their development and recurrence and improves a patient's prognosis. Therefore, SDB is considered a therapeutic target for cardiovascular disease. In 2010, the Japanese Circulation Society published guidelines for the diagnosis and treatment of SDB in patients with cardiovascular disease. However, therapeutic intervention for patients with SDB was recently reported not to suppress the development or deterioration of cardiovascular disease in three middle- to large-sized randomized clinical trials: the SERVE-HF trial, which examined the effects of adaptive servo-ventilation (ASV) on patients with chronic heart failure (CHF) and central sleep apnea; the CAT-HF trial, which examined the effects of ASV therapy on patients with CHF after acute deterioration; and the SAVE study, which examined the secondary preventive effect of continuous positive airway pressure (CPAP) on patients with ischemic heart disease who had mild to moderate obstructive sleep apnea...
2018: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
https://www.readbyqxmd.com/read/29729122/watch-pat-versus-level-iii-device-in-diagnosing-sleep-disordered-breathing-in-first-myocardial-infarction
#14
Jeanette Ting, Li-Ling Tan, Iswaree Devi Balakrishnan, Siew-Pang Chan, Tiong-Cheng Yeo, Chi-Hang Lee
BACKGROUND: Watch-PAT 200, a novel portable sleep device worn on the wrist, has been validated against polysomnography. Although sleep disordered breathing (SDB) screening is recommended in patients with cardiovascular disease, no study has reported a comparison of results from Watch-PAT 200 and level III portable devices.  Methods: Patients (n=140) admitted with a first ST-segment elevation myocardial infarction (STEMI) participated in a hospital-based sleep study using the Watch-PAT 200 and a level III portable device (Embletta Gold) simultaneously within five days of admission...
May 5, 2018: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29719424/heart-rate-phenotypes-and-clinical-correlates-in-a-large-cohort-of-adults-without-sleep-apnea
#15
Zhaoyang Huang, Balaji Goparaju, He Chen, Matt T Bianchi
Background: Normal sleep is associated with typical physiological changes in both the central and autonomic nervous systems. In particular, nocturnal blood pressure dipping has emerged as a strong marker of normal sleep physiology, whereas the absence of dipping or reverse dipping has been associated with cardiovascular risk. However, nocturnal blood pressure is not measured commonly in clinical practice. Heart rate (HR) dipping in sleep may be a similar important marker and is measured routinely in at-home and in-laboratory sleep testing...
2018: Nature and Science of Sleep
https://www.readbyqxmd.com/read/29707392/cardiovascular-risk-assessment-in-a-cohort-of-newly-diagnosed-patients-with-obstructive-sleep-apnea-syndrome
#16
Kostas Archontogeorgis, Athanasios Voulgaris, Evangelia Nena, Maria Strempela, Panagiota Karailidou, Argyrios Tzouvelekis, Toulin Mouemin, Maria Xanthoudaki, Stylianos Steiropoulos, Marios E Froudarakis, Paschalis Steiropoulos
Objectives: Obstructive sleep apnea syndrome (OSAS) is associated with increased cardiovascular morbidity and mortality. The aim of this study was to assess whether the 10-year risk for cardiovascular disease in newly diagnosed patients with OSAS is increased. Materials and Methods: Recently diagnosed, with polysomnography, consecutive OSAS patients were included. The Systematic Coronary Risk Evaluation (SCORE) and the Framingham Risk Score (FRS) were used to estimate the 10-year risk for cardiovascular disease...
2018: Cardiology Research and Practice
https://www.readbyqxmd.com/read/29705780/a-case-of-ventricular-fibrillation-in-a-frail-patient-with-chronic-obstructive-pulmonary-disease-obstructive-sleep-apnea-syndrome-and-electrolytic-disorder
#17
Nicola Marchitto, Monica Mauti, Simona Andreozzi, Alberto Pannozzi, Serenella G Dalmaso, Gianfranco Raimondi
Chronic obstructive pulmonary disease (COPD) is associated with an increased cardiovascular risk, although the pathophysiological mechanisms responsible for this interdependence are not completely known. For instance, the increased sympathetic activity may be implied. The severity of COPD correlates with various arrhythmic manifestations such as atrial fibrillation, atrial flutter, and either sustained or nonsustained ventricular tachycardia. COPD and obstructive sleep apnea syndrome may increase the overall cardiovascular risk, especially in elderly patients...
2018: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/29703571/-complications-after-bariatric-surgery
#18
Regis Souche, Audrey de Jong, Claire Nomine-Criqui, Marius Nedelcu, Laurent Brunaud, David Nocca
Bariatric surgery became consensual after the NIH consensus of 1991 and the appearance of laparoscopic approach. This type of operation has a functional role (improvement of quality of life, locomotion and digestive symptoms as gastro-esophageal reflux disease), a prevention role (increase in life expectancy, reduction of risk of cancer and cardiovascular disease) and a curative role (remission of diabetes mellitus, obstructive sleep apnea syndrome and arterial hypertension). The laparoscopic approach for bariatric surgery led to a major reduction of postoperative morbi-mortality...
April 24, 2018: La Presse Médicale
https://www.readbyqxmd.com/read/29703065/association-of-obstructive-sleep-apnea-with-cardiovascular-outcomes-after-percutaneous-coronary-intervention-a-systematic-review-and-meta-analysis
#19
Xiao Wang, Jing-Yao Fan, Ying Zhang, Shao-Ping Nie, Yong-Xiang Wei
The relationship between obstructive sleep apnea (OSA) and adverse cardiovascular outcomes in patients undergoing percutaneous coronary intervention (PCI) remains unclear. We performed a systematic review and meta-analysis to assess the impact of OSA on subsequent cardiovascular events after PCI.We searched the PubMed, EMBASE, and Cochrane library from their inceptions to August 5, 2017. We included cohort studies that described the association between OSA (based on apnea-hypopnea index) and cardiovascular outcomes after PCI with stenting...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29695760/association-between-obstructive-sleep-apnea-and-optic-neuropathy-a-taiwanese-population-based-cohort-study
#20
Ming-Hui Sun, Yaping Joyce Liao, Che-Chen Lin, Rayleigh Ping-Ying Chiang, James Cheng-Chung Wei
PURPOSE: Obstructive sleep apnea (OSA) is associated with many systemic diseases including diabetes, hypertension, stroke, and cardiovascular disease. The aim of our study was to investigate the association between OSA and optic neuropathy (ON), and to evaluate the efficacy of treatment for OSA on the risk of ON. METHODS: We used the data from the Longitudinal Health Insurance Database, which involved one million insurants from Taiwan National Health Insurance program (Taiwan NHI)...
April 26, 2018: Eye
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