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https://www.readbyqxmd.com/read/28429850/association-of-obstructive-sleep-apnea-with-arterial-stiffness-and-nondipping-blood-pressure-in-patients-with-hypertension
#1
Raimundo Jenner, Fernanda Fatureto-Borges, Valéria Costa-Hong, Heno F Lopes, Sandra H Teixeira, Elias Marum, Dante A M Giorgi, Fernanda M Consolim-Colombo, Luiz A Bortolotto, Geraldo Lorenzi-Filho, Eduardo M Krieger, Luciano F Drager
Whether sex influences the association of obstructive sleep apnea (OSA) with markers of cardiovascular risk in patients with hypertension is unknown. In this study, 95 hypertensive participants underwent carotid-femoral pulse wave velocity, 24-hour ambulatory blood pressure monitoring, echocardiogram, and polysomnography after a 30-day standardized treatment with hydrochlorothiazide plus enalapril or losartan. OSA was present in 52 patients. Compared with non-OSA patients, pulse wave velocity values were higher in the OSA group (men: 11...
April 21, 2017: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/28416405/development-validation-and-assessment-of-an-ischemic-stroke-or-transient-ischemic-attack-specific-prediction-tool-for-obstructive-sleep-apnea
#2
Jason J Sico, H Klar Yaggi, Susan Ofner, John Concato, Charles Austin, Jared Ferguson, Li Qin, Lauren Tobias, Stanley Taylor, Carlos A Vaz Fragoso, Vincent McLain, Linda S Williams, Dawn M Bravata
BACKGROUND: Screening instruments for obstructive sleep apnea (OSA), as used routinely to guide clinicians regarding patient referral for polysomnography (PSG), rely heavily on symptomatology. We sought to develop and validate a cerebrovascular disease-specific OSA prediction model less reliant on symptomatology, and to compare its performance with commonly used screening instruments within a population with ischemic stroke or transient ischemic attack (TIA). METHODS: Using data on demographic factors, anthropometric measurements, medical history, stroke severity, sleep questionnaires, and PSG from 2 independently derived, multisite, randomized trials that enrolled patients with stroke or TIA, we developed and validated a model to predict the presence of OSA (i...
April 14, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28408965/phospholipase-c-related-catalytically-inactive-protein-can-regulate-obesity-a-state-of-peripheral-inflammation
#3
REVIEW
Yosuke Yamawaki, Kana Oue, Satomi Shirawachi, Satoshi Asano, Kae Harada, Takashi Kanematsu
Obesity is defined as abnormal or excessive fat accumulation. Chronic inflammation in fat influences the development of obesity-related diseases. Many reports state that obesity increases the risk of morbidity in many diseases, including hypertension, dyslipidemia, type 2 diabetes, coronary heart disease, stroke, sleep apnea, and breast, prostate and colon cancers, leading to increased mortality. Obesity is also associated with chronic neuropathologic conditions such as depression and Alzheimer's disease. However, there is strong evidence that weight loss reduces these risks, by limiting blood pressure and improving levels of serum triglycerides, total cholesterol, low-density lipoprotein (LDL)-cholesterol, and high-density lipoprotein (HDL)-cholesterol...
February 2017: Japanese Dental Science Review
https://www.readbyqxmd.com/read/28408027/is-atrial-fibrillation-a-preventable-disease
#4
REVIEW
Xin Du, Jianzeng Dong, Changsheng Ma
Atrial fibrillation (AF) is an increasing burden worldwide. However, AF prevention has not been emphasized enough in clinical practice or guidelines. In this paper, the authors review the associations of modifiable lifestyle factors, including alcohol abuse, smoking, physical inactivity, and unhealthy psychological stress, with the risk for AF development. The authors also review the associations of cardiovascular risk factors that can be better managed, including obesity and overweight, high blood pressure, diabetes, dyslipidemia, obstructive sleep apnea, and other cardiovascular diseases, with the risk for AF...
April 18, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28402089/perioperative-management-of-obstructive-sleep-apnea-a-systematic-review
#5
Ruggero Corso, Vincenzo Russotto, Cesare Gregoretti, Davide Cattano
Obstructive sleep apnea (OSA) is the leading sleep disordered breathing condition, with a prevalence rate of moderate to severe OSA of approximately 10 - 17% in the general population. Its prevalence in the surgical population seems to be higher. However, a proportion of up to 60% of patients may not have a formal diagnosis at the moment of preoperative visit. OSA is associated with a number of comorbidities and increased perioperative risks. However, most interventions for the perioperative management of OSA patients lack high quality evidence...
April 11, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28394772/obstructive-sleep-apnea-increases-systolic-and-diastolic-blood-pressure-variability-in-hypertensive-patients
#6
Jing Shi, Jingyan Piao, Bin Liu, Yujiao Pan, Yongtai Gong, Xianzhu Deng, Weiyan Sun, Shuang Lu, Yue Li
OBJECTIVE: Obstructive sleep apnea (OSA) has been identified as the most common secondary contributing factor for the development and worsening of hypertension. However, the underlying relationships between blood pressure variability (BPV) and OSA are still not very clear. Therefore, we investigated the influences of OSA on BPV in hypertensive patients and explored the potential pathophysiologic mechanisms. PARTICIPANTS AND METHODS: Ambulatory blood pressure (BP) monitoring was carried out and polysomnography was performed to detect sleep apnea...
April 7, 2017: Blood Pressure Monitoring
https://www.readbyqxmd.com/read/28386781/diagnosing-and-managing-sleep-apnea-in-patients-with-chronic-cerebrovascular-disease-a-randomized-trial-of-a-home-based-strategy
#7
Dawn M Bravata, Vincent McClain, Charles Austin, Jared Ferguson, Nicholas Burrus, Edward J Miech, Marianne S Matthias, Neale Chumbler, Susan Ofner, Brian Foresman, Jason Sico, Carlos A Vaz Fragoso, Linda S Williams, Rajiv Agarwal, John Concato, H Klar Yaggi
BACKGROUND: Obstructive sleep apnea is common and associated with poor outcomes after stroke or transient ischemic attack (TIA). We sought to determine whether the intervention strategy improved sleep apnea detection, obstructive sleep apnea (OSA) treatment, and hypertension control among patients with chronic cerebrovascular disease and hypertension. METHODS: In this randomized controlled strategy trial intervention, patients received unattended polysomnography at baseline, and patients with OSA (apnea-hypopnea index ≥5 events/h) received auto-titrating continuous positive airway pressure (CPAP) for up to 1 year...
April 6, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28374233/neurological-deficits-in-obstructive-sleep-apnea
#8
REVIEW
Luigi Ferini-Strambi, Giulia Elisabetta Lombardi, Sara Marelli, Andrea Galbiati
Obstructive sleep apnea (OSA) is the most common sleep-related breathing disorder characterized by repetitive episodes of complete or partial obstruction of the upper airway. The prevalence of this disorder is strictly dependent on its gravity. At ≥15 events/h apnea-hypopnea index (AHI), it ranges from 6 to 17% in the general population, with higher rates in men and increasing with age. The hypoxia induced by OSA severely affects the structure and function of blood vessels, culminating in mortality and morbidity...
April 2017: Current Treatment Options in Neurology
https://www.readbyqxmd.com/read/28366323/effect-of-continuous-positive-airway-pressure-on-regional-cerebral-blood-flow-in-patients-with-severe-obstructive-sleep-apnea-syndrome
#9
Jeong Sik Kim, Ji Hye Seo, Mi-Ri Kang, Min Jae Seong, Won Gu Lee, Eun Yeon Joo, Seung Bong Hong
OBJECTIVES: Obstructive sleep apnea (OSA) is commonly associated with neural and cognitive deficits induced by recurrent hypoxemia and sleep fragment. The aims of this study were to use statistical parametric mapping (SPM) to analyze changes in regional cerebral blood flow (rCBF) in untreated patients with severe OSA before and after nasal continuous positive airway pressure (CPAP) treatment, examine the impact of OSA-related variables on rCBF, and assess the therapeutic effect of nasal CPAP treatment...
April 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28355752/-incidence-and-influencing-factors-of-continuous-positive-airway-pressure-treatment-emergent-central-sleep-apnea-in-the-patients-with-obstructive-sleep-apnea-syndrome-at-high-altitude
#10
Z B Miao, Y Y Wang, R Sun, H L Lei, D J Huang, L H Huang, C Y Fan, Y H Lü
Objective: To investigate the incidence of treatment-emergent central sleep apnea (TE-CSA), the characteristics of demography and the influencing factors in patients with obstructive sleep apnea syndrome (OSAS) after initial continuous positive airway pressure (CPAP) titration at high altitude. Methods: Clinical data of 297 patients with OSAS which living in plateau areas (1 000 meters or more above sea level) were retrospectively analyzed in this study from January to December, 2015. All of these patients taken an overnight CPAP titration in the Sleep Medicine Center of First People's Hospital of Yunnan Province...
March 28, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28346156/association-of-sleep-characteristics-with-cardiovascular-and-metabolic-risk-factors-in-a-population-sample-the-chicago-area-sleep-study
#11
Samantha E Montag, Kristen L Knutson, Phyllis C Zee, Jeffrey J Goldberger, Jason Ng, Kwang-Youn A Kim, Mercedes R Carnethon
OBJECTIVES: To investigate the association of sleep characteristics with prevalent hypertension, diabetes, and obesity in a multiethnic cohort. DESIGN: This study used a population-based cross-sectional study design. SETTING: Participants were recruited between 2009 and 2011 from Chicago, Illinois, and the surrounding suburbs. PARTICIPANTS: Participants were 492 adults aged 35 to 64years who self-reported as white, black, Hispanic, or Asian and who had a low likelihood of sleep apnea based on the apnea screening questionnaires and 1 night of apnea screening using an in-home device (apnea hypopnea index <15 or oxygen desaturation index <10)...
April 2017: Sleep Health
https://www.readbyqxmd.com/read/28327146/association-between-obstructive-sleep-apnea-severity-and-endothelial-dysfunction-in-patients-with-type-2-diabetes
#12
Vanessa Bironneau, François Goupil, Pierre Henri Ducluzeau, Marc Le Vaillant, Pierre Abraham, Samir Henni, Séverine Dubois, Audrey Paris, Pascaline Priou, Nicole Meslier, Claire Sanguin, Wojciech Trzépizur, Ramaroson Andriantsitohaina, Maria Carmen Martinez, Frédéric Gagnadoux
BACKGROUND: Obstructive sleep apnea (OSA) and type 2 diabetes (T2D) are associated with endothelial dysfunction a main predictor of late cardiovascular (CV) events. Despite the high prevalence of OSA in patients with T2D, the impact of OSA severity on endothelial function has not been clearly elucidated. The aim of this cross-sectional study was to determine whether increasing OSA severity is associated with poorer endothelial function in patients with T2D. METHODS: 140 patients with T2D and no overt CV disease underwent polysomnography, peripheral arterial tonometry, clinic blood pressure (BP) measurement, biological assessment for CV risk factors, daytime sleepiness and health related quality of life (HRQL) questionnaires...
March 21, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28325005/dynamic-modeling-of-apnea-induced-concurrent-variations-in-arterial-blood-pressure-and-cerebral-blood-flow-velocity
#13
Raichel Alex, Rong Zhang, Donald E Watenpaugh, Khosrow Behbehani
Obstructive Sleep Apnea (OSA) is characterized by partial (hypopnea) or complete cessation (apnea) of airflow to the lungs during sleep. It has been previously reported that apnea episodes lead to significant rise in instantaneous blood pressure concomitant with a rise in cerebral blood flow velocity, indicating loss of cerebral autoregulation during the episodes. In this study, we have used Auto Regressive Moving Average model (ARMA (na, nb, nk)) to quantify OSA induced dynamic changes in cerebral blood flow velocity (CBFV) with beat to beat blood pressure (BP) as an input...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324596/blood-pressure-and-metabolic-changes-after-3-month-cpap-therapy-in-a-very-elderly-obese-with-severe-obstructive-sleep-apnea-a-case-report-and-review-of-the-literature
#14
Francesco Spannella, Federico Giulietti, Chiara Di Pentima, Francesca Elena Lombardi, Elisabetta Borioni, Riccardo Sarzani
Age is one of the main risk factor for the presence of obstructive sleep apnea (OSA). This syndrome is associated with hypertension, cardiovascular disease, cognitive impairment and metabolic abnormalities, such as type 2 diabetes. Continuous positive airway pressure (CPAP) represents the gold standard therapy, but its benefit is still to be determined in very elderly. We report the blood pressure and metabolic changes in a very elderly obese with severe OSA after 3-month CPAP therapy. We have evaluated a very elderly obese male affected by severe symptomatic OSA, poor controlled nocturnal hypertension and insulin resistance...
March 21, 2017: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
https://www.readbyqxmd.com/read/28314626/cerebral-hemodynamic-effects-of-cheyne-stokes-respiration-in-a-patient-with-stroke
#15
R C Nogueira, R B Panerai, M J Teixeira, T G Robinson, E Bor-Seng-Shu
INTRODUCTION: Cheyne-Stokes respiration (CSR) and central sleep apnea (CSA) are common in patients with heart failure and/or stroke. We aim to describe the cerebrovascular effects of CSR during the acute phase of stroke in a heart failure patient. CASE REPORT: A 74-year-old male with previous dilated cardiomyopathy had sudden onset of right hemiparesis and aphasia. A transcranial Doppler was performed with continuous measurement of blood pressure (BP) (Finometer) and end-tidal CO2 (nasal capnography)...
March 14, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28300571/sleep-apnea-and-hypertension-are-there-gender-differences-the-vitoria-sleep-cohort
#16
Irene Cano-Pumarega, Ferrán Barbé, Andrés Esteban, Montserrat Martínez-Alonso, Carlos Egea, Joaquín Durán-Cantolla
BACKGROUND: Evidence from longitudinal studies has reported contradictory results regarding the association between obstructive sleep apnea (OSA) and hypertension. In a previous analysis of the Vitoria Sleep Cohort, we evaluated the relationship between OSA and the risk of developing hypertension and we did not find an independent association after adjustment for confounding factors. In the present study, we perform a post hoc analysis to assess the association between OSA and incident stage 2 hypertension (systolic blood pressure ≥ 160 mmHg and/or diastolic blood pressure ≥ 100 mmHg) based on gender differences...
March 11, 2017: Chest
https://www.readbyqxmd.com/read/28288605/switch-of-noninvasive-ventilation-niv-to-continuous-positive-airway-pressure-cpap-in-patients-with-obesity-hypoventilation-syndrome-a-pilot-study
#17
Sarah Orfanos, Dany Jaffuel, Christophe Perrin, Nicolas Molinari, Pascal Chanez, Alain Palot
BACKGROUND: Obesity is a major worldwide public health issue. The main respiratory complication stemming from obesity is obesity hypoventilation syndrome (OHS). Most of the OHS patients diagnosed during an exacerbation are treated with non invasive ventilation (NIV). Up to date, no prospective study has demonstrated in real life conditions the feasibility of a systematic protocoled switch of NIV to continuous positive airway pressure (CPAP), once stability is achieved. METHODS: In this prospective study, we included stable patients with OHS, with moderate to severe concomitant obstructive sleep apnea (OSA) and without obstructive pulmonary disease, who had been undergoing NIV for more than 2 months...
March 14, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28281834/association-of-sleep-disordered-breathing-with-diabetes-associated-kidney-disease
#18
Stefan Stadler, Tanja Zimmermann, Franziska Franke, Myriam Rheinberger, Iris M Heid, Carsten A Böger, Michael Arzt
INTRODUCTION: Diabetes-associated kidney disease is characterized by impairment of renal function and albuminuria. The aim of the present study was to assess whether sleep-disordered breathing is associated with decreased estimated glomerular filtration rate or increased urine-albumin-to-creatinine-ratio independently from known modulators of diabetes-associated kidney disease. MATERIAL AND METHODS: Estimated glomerular filtration rate and urine-albumin-to-creatinine-ratio were determined in the baseline survey of the DIACORE-SDB substudy, a prospectively planned study of Diabetes mellitus 2 patients...
March 27, 2017: Annals of Medicine
https://www.readbyqxmd.com/read/28269228/leg-fluid-accumulation-during-prolonged-sitting
#19
Daniel Vena, Jonathan Rubianto, Milos Popovic, Azadeh Yadollahi
The accumulation of fluid in the legs due to sedentariness can be a health risk in extreme cases. Negative health impacts associated with leg fluid accumulation include leg edema and risk of blood clots. Furthermore, fluid accumulating in the legs is accompanied by fluid shift into the upper body which is also associated with health risks such as: increased blood pressure when lying down, respiratory problems in people with heart failure, and increased sleep apnea. Understanding the pattern by which fluid accumulates in the legs can aid in the development of devices for reducing leg fluid accumulation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28266781/influence-of-high-risk-of-obstructive-sleep-apnea-on-adherence-to-antihypertensive-treatment-in-outpatients
#20
Camila G Righi, Denis Martinez, Sandro C Gonçalves, Miguel Gus, Leila B Moreira, Sandra C Fuchs, Flavio D Fuchs
Obstructive sleep apnea (OSA) is a common cause of high blood pressure (BP). Many patients, however, have uncontrolled BP because of nonadherence to antihypertensive medication. The possibility that OSA influences adherence has not been investigated to date. The authors sought to explore the possible association between high risk of OSA and nonadherence. This study was carried out in a hypertension outpatient clinic. Adherence to medication, high risk of OSA, and sleepiness were evaluated in a cross-sectional study...
March 7, 2017: Journal of Clinical Hypertension
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