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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
#1
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/29747728/management-of-obstructive-sleep-apnea-in-pregnancy
#2
REVIEW
Jennifer E Dominguez, Linda Street, Judette Louis
The spectrum of sleep-disordered breathing (SDB) ranges from mild snoring to obstructive sleep apnea, the most severe form of SDB. Current recommendations are to treat these women with continuous positive airway pressure despite limited data. SDB in early and mid-pregnancy is associated with preeclampsia and gestational diabetes. Pregnant women with a diagnosis of obstructive sleep apnea at delivery were at significantly increased risk of having cardiomyopathy, congestive heart failure, pulmonary embolism, and in-hospital death...
June 2018: Obstetrics and Gynecology Clinics of North America
https://www.readbyqxmd.com/read/29740701/characteristics-and-circadian-distribution-of-cardiac-arrhythmias-in-patients-with-heart-failure-and-sleep-disordered-breathing
#3
Hazem Omran, Thomas Bitter, Dieter Horstkotte, Olaf Oldenburg, Henrik Fox
BACKGROUND: Cardiac arrhythmias and sleep-disordered breathing (SDB) are common comorbidities in heart failure with reduced ejection fraction (HFrEF). However, understanding of the association between arrhythmias and SDB is poor. This study assessed the occurrence and circadian distribution of ventricular arrhythmias in HFrEF patients with and without SDB. METHODS: This retrospective analysis included HFrEF patients admitted for unattended overnight cardiorespiratory polygraphy and 24-h Holter-ECG recording...
May 8, 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29731622/chronic-obstructive-pulmonary-disease-severity-and-its-association-with-obstructive-sleep-apnea-syndrome-impact-on-cardiac-autonomic-modulation-and-functional-capacity
#4
Katiany Thays Lopes Zangrando, Renata Trimer, Luiz Carlos Soares de Carvalho, Guilherme Peixoto Tinoco Arêas, Flávia Cristina Rossi Caruso, Ramona Cabiddu, Meliza Goi Roscani, Fabíola Paula Galhardo Rizzatti, Audrey Borghi-Silva
Background: The study was conducted to determine the impact of chronic obstructive pulmonary disease (COPD) in association with obstructive sleep apnea syndrome (OSAS) on cardiac autonomic control and functional capacity. Subjects and methods: The study was a cross-sectional prospective controlled clinical study. Heart rate variability indices of 24 COPD (n = 12) and COPD+OSAS (n = 12) patients were evaluated and compared by electrocardiographic recordings acquired during rest, active postural maneuver (APM), respiratory sinus arrhythmia maneuver (RSA-m), and the 6-minute walk test (6MWT)...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29731500/sleep-disordered-breathing-a-real-therapeutic-target-for-hypertension-pulmonary-hypertension-ischemic-heart-disease-and-chronic-heart-failure
#5
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/29719424/heart-rate-phenotypes-and-clinical-correlates-in-a-large-cohort-of-adults-without-sleep-apnea
#6
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/29717414/primary-central-sleep-apnea-and-anesthesia-a-retrospective-case-series
#7
Alexandru Alexa, Meghna P Mansukhani, Bhargavi Gali, Atousa Deljou, Juraj Sprung, Toby N Weingarten
PURPOSE: Primary (idiopathic) central sleep apnea (PCSA) is a rare central sleep-related breathing disorder characterized by increased chemoreceptor sensitivity to partial pressure of carbon dioxide, which manifests as hyperventilation followed by apnea during non-rapid eye movement sleep. The purpose of this retrospective study was to describe the postoperative course of patients who had PCSA and underwent procedures requiring anesthetic management. METHODS: Patients who received a diagnosis of PCSA at our institution and required procedural anesthesia between 1 January 2010 and 1 June 2016 underwent a comprehensive review of their health records with a focus on identifying respiratory complications...
May 1, 2018: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/29707357/transvenous-phrenic-nerve-stimulation-a-novel-therapeutic-approach-for-central-sleep-apnea
#8
REVIEW
Ning Ding, Xilong Zhang
Central sleep apnea (CSA) is common in heart failure (HF) patients. Traditional treatment of CSA, including continuous positive airway pressure (CPAP), adaptive servo ventilation (ASV), oxygen therapy, and CO2 inhalation, has respective limitations. Transvenous phrenic nerve stimulation (PNS), a novel therapeutic approach for CSA, was proved to be effective and safe. The remedē® system and related transvenous PNS methods was approved by FDA in 2017, for treating moderate to severe CSA.
March 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29703065/association-of-obstructive-sleep-apnea-with-cardiovascular-outcomes-after-percutaneous-coronary-intervention-a-systematic-review-and-meta-analysis
#9
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/29701198/-a-case-of-severe-obstructive-sleep-apnea-hypopnea-syndrome-with-urinary-and-anal-incontinence
#10
Li Zhou, Ruoyun Ouyang, Ping Chen, Hong Luo, Hanmei Liu, Guiqian Liu
A case of a young male patient, who came to the Second Xiangya Hospital, Central South University because of snoring for 10 years and nocturnal gatism for half month, was analyzed retrospectively. He was diagnosed as obstructive sleep apnea hypopnea syndrome (OSAHS) finally. The patient had been diagnosed and treated as stroke in the local hospital, while urinary and anal incontinence were not relieved. It was a dilemma for him to be properly diagnosed and treated. Polysomnography in our hospital revealed apnea hypopnea index (AHI) at 44...
March 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29698642/obesity-and-ventricular-repolarization-a-comprehensive-review
#11
REVIEW
Jad Omran, Brian P Bostick, Albert K Chan, Martin A Alpert
Obesity is known to be a strong predictor of sudden cardiac death. For this reason, concern exists that this association may be related to delayed ventricular repolarization (VR), which has been extensively studied in overweight and obese patients. The corrected QT interval (QTc) and QT or QTc dispersion have been the most commonly-used electrocardiographic methods for assessing VR. Multiple controlled studies demonstrated that QTc and QT or QTc dispersion were significantly longer/greater in overweight and obese subjects than in normal weight controls...
April 23, 2018: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/29693002/matrix-metalloproteinase-9-is-a-predictive-factor-for-systematic-hypertension-and-heart-dysfunction-in-patients-with-obstructive-sleep-apnea-syndrome
#12
Shuhui Wang, Shisheng Li, Bin Wang, Jiajia Liu, Qinglai Tang
Patients with obstructive sleep apnea syndrome (OSAS) showed higher prevalence in cardiovascular diseases due to aberrant hypoxia and oxidative stress. However, not all OSAS patients end up with cardiovascular disorders, and identification of novel biomarker will be invaluable for differentiating patients at risk. Here we tested the serum matrix metalloproteinase-9 (MMP-9) levels in 47 untreated OSAS patients and found that the MMP-9 level was positively correlated with severity of OSAS, which was consistent with hypoxia degree and duration...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29685205/may-inflammatory-markers-be-used-for-monitoring-the-continuous-positive-airway-pressure-effect-in-patients-with-obstructive-sleep-apnea-and-arrhythmias
#13
G N Dediu, C C Diaconu, S Dumitrache Rujinski, M A Iancu, L A Balaceanu, I Dina, M Bogdan
INTRODUCTION: Obstructive sleep apnea syndrome (OSAS) is defined by recurrent episodes of significant reduction or absence of the oro-nasal airflow during sleep, in the presence of thorax and abdominal movements and snoring. The pathophysiological consequences of intermittent hypoxia determined by OSAS are represented by systemic inflammation, the release of free oxygen radicals and activation of the sympathetic nervous system. Cardiac arrhythmias are a frequent comorbidity in patients with OSAS...
June 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29684317/portable-sleep-monitoring-for-diagnosing-sleep-apnea-in-hospitalized-patients-with-heart-failure
#14
R Nisha Aurora, Susheel P Patil, Naresh M Punjabi
BACKGROUND: Sleep apnea is an underdiagnosed condition in patients with heart failure. Efficient identification of sleep apnea is needed as treatment may improve heart failure-related outcomes. Currently, use of portable sleep monitoring in hospitalized patients and those at risk for central sleep apnea is discouraged. This study examined if portable sleep monitoring with respiratory polygraphy can accurately diagnose sleep apnea in patients hospitalized with decompensated heart failure...
April 20, 2018: Chest
https://www.readbyqxmd.com/read/29680418/uvulopalatopharyngoplasty-reduces-the-incidence-of-cardiovascular-complications-caused-by-obstructive-sleep-apnea-results-from-the-national-insurance-service-survey-2007-2014
#15
Heung Man Lee, Hyo Yeol Kim, Jeffrey D Suh, Kyung-Do Han, Jin Kook Kim, Young Chang Lim, Seok-Chan Hong, Jae Hoon Cho
OBJECTIVE: Untreated obstructive sleep apnea (OSA) is a risk factor for cardiovascular disease including myocardial infarction (MI), congestive heart failure (CHF), and atrial fibrillation (AF). Continuous positive airway pressure (CPAP) is an effective treatment for OSA; however, compliance with CPAP can be challenging for some patients. The objective of this study was to investigate whether uvulopalatopharyngoplasty (UPPP) reduced the risk of cardiovascular complications for patients with OSA...
May 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29680416/electrocardiographic-variables-in-children-with-syndromic-craniosynostosis-and-primary-snoring-to-mild-obstructive-sleep-apnea-significance-of-identifying-respiratory-arrhythmia-during-sleep
#16
Ellaha Kakar, Linda J A Corel, Robert C Tasker, Robbin de Goederen, Eppo B Wolvius, Irene M J Mathijssen, Koen F M Joosten
BACKGROUND: In the spectrum of children with symptomatic sleep disordered breathing (SDB), some individuals - such as those with upper airway resistance syndrome (UARS) - do not have abnormalities on polysomnography (PSG). In this study we have assessed whether assessment of respiratory arrhythmia (RA) and heart rate variability (HRV) analysis helps in management of children with syndromic craniosynostosis and none-to-mild obstructive sleep apnea (OSA). METHODS: Prospective cohort study in children aged 1-18 years old with syndromic craniosynostosis...
May 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29667019/what-is-new-in-heart-failure-management-in-2017-update-on-acc-aha-heart-failure-guidelines
#17
REVIEW
Biykem Bozkurt
PURPOSE OF REVIEW: The goal of this paper is to provide a summary of the new recommendations in the most recent 2017 ACC/AHA/HFSA Focused Update of the 2013 ACCF/AHA Guideline for the Management of Heart Failure: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Failure Society of America. The intent is to provide the background and the supporting evidence for the recommendations and to provide practical guidance for management strategies in treatment of heart failure patients...
April 17, 2018: Current Cardiology Reports
https://www.readbyqxmd.com/read/29660382/elevated-plasma-soluble-pro-renin-receptor-levels-are-associated-with-left-ventricular-remodeling-and-renal-function-in-chronic-heart-faiure-patients-with-reduced-ejection-fraction
#18
Linghui Gong, Shenglin Zhang, Linrui Li, Xin Gao, Dongxia Wang, Dachang Wu, Ke Wang, Yan Liu
Soluble (pro)renin receptor [s(P)RR], which is generated from cleavage of (P)RR, can be detected in plasma and urine. s(P)RR levels can reflect the severity of some diseases, such as renal lesions, gestational diabetes mellitus or hypertension, and obstructive sleep apnea syndrome. However, the relationship between s(P)RR levels and the severity of chronic heart failure remains undetermined. We studied s(P)RR levels in 118 patients with chronic heart failure with reduced ejection fraction (HFrEF), including 86 without renal dysfunction (HF) and 32 with renal dysfunction (HF + RF), and 28 healthy subjects (HS) to reveal the relationship between s(P)RR levels and other HFrEF parameters...
April 13, 2018: Peptides
https://www.readbyqxmd.com/read/29659956/polyphenols-have-no-impact-on-endothelial-function-in-patients-with-obstructive-sleep-apnea-a-randomized-controlled-trial
#19
Wojciech Trzepizur, Vanessa Bironneau, Sylvain Recoquillon, Pascaline Priou, Nicole Meslier, Jean-François Hamel, Samir Henni, Astrid Darsonval, Khaled Messaoudi, Maria Carmen Martínez, Ramaroson Andriantsitohaina, Frédéric Gagnadoux
Background: Endothelial dysfunction, a pathophysiologic determinant of atherogenesis, has been found to occur in obstructive sleep apnea syndrome (OSA) and is improved by continuous positive airway pressure (CPAP). However, the efficacy of CPAP therapy is limited by variable adherence. Alternative treatment strategies are needed. The impact of polyphenols on endothelial function has never been evaluated in OSA. Objective: We evaluated the impact of 1-mo supplementation with grape juice polyphenols (GJPs) on the reactive hyperemia index (RHI), a validated measure of endothelial function in patients with severe OSA...
April 1, 2018: Journal of Nutrition
https://www.readbyqxmd.com/read/29657061/risk-factors-for-new-onset-atrial-fibrillation-a-focus-on-asian-populations
#20
Yanguang Li, Daniele Pastori, Yutao Guo, Yutang Wang, Gregory Y H Lip
The incidence of new-onset atrial fibrillation (NOAF) is increasing both in the Asian populations and Western countries. Several demographic and clinical risk factors were independently associated with NOAF, including ageing, male sex, obesity, obstructive sleep apnea syndrome, hypertension, coronary artery disease, renal dysfunction and heart failure. However, some differences in the incidence of NOAF, the prevalence of some risk factors and lifestyle or environmental conditions may exist between Asian and Western countries...
June 15, 2018: International Journal of Cardiology
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