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https://www.readbyqxmd.com/read/29049073/postoperative-outcomes-in-obstructive-sleep-apnea-patients-undergoing-cardiac-surgery-a-systematic-review-and-meta-analysis-of-comparative-studies
#1
Mahesh Nagappa, George Ho, Jayadeep Patra, Jean Wong, Mandeep Singh, Roop Kaw, Davy Cheng, Frances Chung
BACKGROUND: Obstructive sleep apnea (OSA) is a common comorbidity in patients undergoing cardiac surgery and may predispose patients to postoperative complications. The purpose of this meta-analysis is to determine the evidence of postoperative complications associated with OSA patients undergoing cardiac surgery. METHODS: A literature search of Cochrane Database of Systematic Reviews, Medline, Medline In-process, Web of Science, Scopus, EMBASE, Cochrane Central Register of Controlled Trials, and CINAHL until October 2016 was performed...
October 17, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29047083/altered-redox-balance-in-the-development-of-chronic-hypoxia-induced-pulmonary-hypertension
#2
Nikki L Jernigan, Thomas C Resta, Laura V Gonzalez Bosc
Normally, the pulmonary circulation is maintained in a low-pressure, low-resistance state with little resting tone. Pulmonary arteries are thin-walled and rely heavily on pulmonary arterial distension and recruitment for reducing pulmonary vascular resistance when cardiac output is elevated. Under pathophysiological conditions, however, active vasoconstriction and vascular remodeling lead to enhanced pulmonary vascular resistance and subsequent pulmonary hypertension (PH). Chronic hypoxia is a critical pathological factor associated with the development of PH resulting from airway obstruction (COPD, sleep apnea), diffusion impairment (interstitial lung disease), developmental lung abnormalities, or high altitude exposure (World Health Organization [WHO]; Group III)...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29031756/obstructive-sleep-apnea-in-pregnancy-is-associated-with-adverse-maternal-outcomes-a-national-cohort
#3
Ghada Bourjeily, Valery A Danilack, Margaret H Bublitz, Heather Lipkind, Janet Muri, Donna Caldwell, Iris Tong, Karen Rosene-Montella
OBJECTIVE: Pregnancy and the obesity epidemic impacting women of reproductive age appear to predispose women to obstructive sleep apnea (OSA) in pregnancy. The aim of this study is to examine the association between OSA and adverse maternal outcomes in a national cohort. METHODS: The National Perinatal Information Center in the US was used to identify women with a delivery discharge diagnosis of OSA from 2010 to 2014. We used the International Classification of Diseases, ninth Revision to classify OSA diagnosis and maternal outcomes...
October 2017: Sleep Medicine
https://www.readbyqxmd.com/read/29029984/sleep-sleep-apnea-and-atrial-fibrillation-questions-and-answers
#4
REVIEW
Younghoon Kwon, Ryan J Koene, Alan D Johnson, Gen-Min Lin, John D Ferguson
Sleep apnea (SA) is a common sleep disorder increasingly recognized as a risk for cardiovascular disease. Atrial fibrillation (AF) is the most common cardiac arrhythmia and is associated with significant morbidity and mortality. An increasing number of investigations in recent years have linked SA to AF. In this review, we aim to provide a critical overview of the existing evidence in a question and answer format by addressing the following: What is the prevalent association between the two conditions (separating nocturnally detected AF episodes from AF as a prevalent condition)? Is SA a risk factor for incident AF? Is SA a risk factor for recurrence of AF following cardioversion/catheter-based ablation? What is the association between SA and AF in patients with heart failure? Are there signature electrocardiographic markers of AF found in patients with SA? Are there electrophysiology-based studies supporting the link between SA and AF? What other sleep characteristics (beyond SA) are found in patients with AF? What is the impact of SA treatment on AF? What is the effect of AF treatment on sleep? Finally, we address unsolved questions and suggest future directions to enhance our understanding of the AF-SA relationship...
September 4, 2017: Sleep Medicine Reviews
https://www.readbyqxmd.com/read/29017928/the-implantable-cardioverter-defibrillator-computed-respiratory-disturbance-index-accurately-identifies-severe-sleep-apnea-the-dasap-hf-study
#5
Antonio D'Onofrio, Maria Teresa La Rovere, Michele Emdin, Alessandro Capucci, Gianfranco Sinagra, Valter Bianchi, Ennio Pisanò, Paolo Pieragnoli, Maurizio Tespili, Mario Luzi, Antonello Talarico, Massimo Zecchin, Antonio Rapacciuolo, PhD Marcello Piacenti, Ciro Indolfi, Miguel Angel Arias, Igor Diemberger, Catia Checchinato, Giuseppe Boriani, Luigi Padeletti
BACKGROUND: Sleep apnea (SA) is a relevant issue in the management of heart failure patients for risk stratification and for implementing treatment strategies. OBJECTIVE: To evaluate in patients with implantable cardioverter defibrillators (ICDs) the performance of the Respiratory Disturbance Index (RDI) computed by the ApneaScan™ algorithm (Boston Scientific Inc., Natick, MA, USA), as a discriminator of severe SA. METHODS: ICD indicated patients with left ventricular ejection fraction ≤35% were enrolled...
October 7, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28955382/atrial-fibrillation-in-heart-failure-a-therapeutic-challenge-of-our-times
#6
REVIEW
Syeda Atiqa Batul, Rakesh Gopinathannair
Atrial fibrillation (AF) and heart failure (HF) are growing cardiovascular disease epidemics worldwide. There has been an exponential increase in the prevalence of AF and HF correlating with an increased burden of cardiac risk factors and improved survival rates in patients with structural heart disease. AF is associated with adverse prognostic outcomes in HF and is most evident in mild-to-moderate left ventricular (LV) dysfunction where the loss of "atrial kick" translates into poorer quality of life and increased mortality...
September 2017: Korean Circulation Journal
https://www.readbyqxmd.com/read/28947309/wilson-s-disease-and-cardiac-myopathy
#7
Donald J Grandis, Gregory Nah, Isaac R Whitman, Eric Vittinghoff, Thomas A Dewland, Jeffrey E Olgin, Gregory M Marcus
Wilson's disease is a well-characterized disorder known to cause liver and brain disease due to abnormal copper deposition. Data regarding copper infiltration of the heart is conflicting, and the risk of heart disease has not been well described. We aimed to determine whether Wilson's disease is associated with cardiac myopathy, clinically evident in the atria as atrial fibrillation (AF) and in the ventricles as heart failure (HF). We longitudinally assessed 14.3 million patients in the California Healthcare Cost and Utilization Project database from 2005 through 2009 for diagnoses of Wilson's disease, AF, HF, and covariates using International Classification of Diseases-9th Edition codes...
August 30, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28942764/ocular-manifestations-of-obstructive-sleep-apnea
#8
Matthew Santos, R Jeffrey Hofmann
STUDY OBJECTIVES: Obstructive sleep apnea (OSA) incurs a host of systemic side effects. The eyes are particularly susceptible to both mechanical and vascular sequelae of the disease. This paper outlines the ocular manifestations of sleep apnea. The authors hope to increase awareness of the ocular complications of this common disorder and increase communication and co-management between eye-care providers and sleep specialists alike. METHODS: Data were collected from PubMed and the Brown University Library Collection...
September 20, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28899537/severity-of-individual-obstruction-events-increases-with-age-in-patients-with-obstructive-sleep-apnea
#9
Timo Leppänen, Juha Töyräs, Esa Mervaala, Thomas Penzel, Antti Kulkas
BACKGROUND: Age is a risk factor of obstructive sleep apnea (OSA). It has been shown that OSA progresses over time, although conflicting results have been reported. However, the effect of age on the severity of OSA and individual obstruction events has not been investigated within different OSA severity categories by taking the most prominent confounding factors (i.e., body mass index, gender, smoking, daytime sleepiness, snoring, hypertension, heart failure, and proportion of supine sleep) into account...
September 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28888522/sleep-disordered-breathing-and-heart%C3%A2-failure-what-does-the-future-hold
#10
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...
October 2017: JACC. Heart Failure
https://www.readbyqxmd.com/read/28885813/asleep-at-the-wheel-obstructive-sleep-apnea
#11
Richard J Fantus
Left untreated, OSA can lead to hypertension, stroke, congestive heart failure, and atrial fibrillation and s associated with type 2 diabetes and depression.... OSA strikes people of any age, including infants, and is most commonly seen in overweight or obese men older than 40 years of age.
June 2017: Bulletin of the American College of Surgeons
https://www.readbyqxmd.com/read/28882233/prognostic-significance-of-central-apneas-throughout-a-24-hour-period-in-patients%C3%A2-with-heart-failure
#12
RANDOMIZED CONTROLLED TRIAL
Michele Emdin, Gianluca Mirizzi, Alberto Giannoni, Roberta Poletti, Giovanni Iudice, Francesca Bramanti, Claudio Passino
BACKGROUND: Large trials using noninvasive mechanical ventilation to treat central apnea (CA) occurring at night ("sleep apnea") in patients with systolic heart failure (HF) have failed to improve prognosis. The prevalence and prognostic value of CA during daytime and over an entire 24-h period are not well described. OBJECTIVES: This study evaluated the occurrence and prognostic significance of nighttime, daytime, and 24-h CA episodes in a large cohort of patients with systolic HF...
September 12, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28859720/sleep-overnight-monitoring-for-apnea-in-patients-hospitalized-with-heart-failure-soma-hf-study
#13
Sunil Sharma, Paul J Mather, Anindita Chowdhury, Suchita Gupta, Umer Mukhtar, Leslee Willes, David J Whellan, Atul Malhotra, Stuart F Quan
INTRODUCTION: Sleep-disordered breathing (SDB) is highly prevalent in hospitalized patients with congestive heart failure (CHF) and the condition is diagnosed and treated in only a minority of these patients. Portable monitoring (PM) is a screening option, but due to costs and the expertise required, many hospitals may find it impractical to implement. We sought to test the utility of an alternative approach for screening hospitalized CHF patients for SDB, high-resolution pulse oximetry (HRPO)...
August 29, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28859717/omega-3-index-and-obstructive-sleep-apnea-a-cross-sectional-study
#14
Janine Tittus, Marie Theres Huber, Klaus Storck, Anton Köhler, Jan M Köhler, Thomas von Arnim, Clemens von Schacky
STUDY OBJECTIVES: Erythrocyte levels of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) (Omega-3 Index) were previously found to be associated with obstructive sleep apnea (OSA) at very low levels (< 5.0%) in only one epidemiologic study. OSA has comorbidities, such as arterial hypertension, heart failure, or major depression, also associated with a low Omega-3 Index. These comorbidities can be improved by increasing intake of EPA and DHA, and thus the Omega-3 Index, preferably to its target range of 8% to 11%...
August 29, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28853425/obstructive-sleep-apnea-syndrome-osas-and-cardiovascular-system
#15
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/28836321/association-between-left-atrial-enlargement-and-obstructive-sleep-apnea-in-a-general-population-of-71-year-old-men
#16
Henrik Holtstrand Hjälm, Michael Fu, Per-Olof Hansson, You Zhong, Kenneth Caidahl, Zacharias Mandalenakis, David Morales, Constantinos Ergatoudes, Annika Rosengren, Ludger Grote, Erik Thunström
Left atrial enlargement has been shown to be associated with obstructive sleep apnea in patients with coronary artery disease and in sleep clinic cohorts. However, data from the general population are limited. The aim of this study was to investigate whether there is an association between obstructive sleep apnea and left atrial enlargement in a random sample from a general population of 71-year-old men. As part of the longitudinal population study The Study of Men Born in 1943, we analysed cross-sectional data for 411 men, all 71 years old, who had participated in an overnight home sleep study and a standardized echocardiographic examination...
August 24, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28808861/epidemiology-of-sleep-disordered-breathing-and-heart-failure-what-drives-what
#17
REVIEW
Sushma M Dharia, Lee K Brown
PURPOSE OF REVIEW: The bidirectional relationships that have been demonstrated between heart failure (HF) and central sleep apnea (CSA) demand further exploration with respect to the implications that each condition has for the other. This review discusses the body of literature that has accumulated on these relationships and how CSA and its potential treatment may affect outcomes in patients with CSA. RECENT FINDINGS: Obstructive sleep apnea (OSA) can exacerbate hypertension, type 2 diabetes, obesity, and atherosclerosis, which are known predicates of HF...
August 14, 2017: Current Heart Failure Reports
https://www.readbyqxmd.com/read/28777366/-complex-sleep-apnea-syndrome
#18
A D Palman
Complex sleep apnea syndrome (Comp-SAS) is the term used to describe a specific form of sleep disordered breathing characterized by the arise of central sleep apnea in patient with previous obstructive sleep apnea syndrome (OSAS) treated with continuous positive airway pressure devices (CPAP). The mechanisms of its occurrence are not well understood, but partly it seems to be a consequence of increased carbon dioxide elimination under positive airway pressure treatment and related improvement of pulmonary ventilation...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28760461/effect-of-dead-space-on-breathing-stability-at-exercise-in-hypoxia
#19
Eric Hermand, François J Lhuissier, Jean-Paul Richalet
Recent studies have shown that normal subjects exhibit periodic breathing when submitted to concomitant environmental (hypoxia) and physiological (exercise) stresses. A mathematical model including mass balance equations confirmed the short period of ventilatory oscillations and pointed out an important role of dead space in the genesis of these phenomena. Ten healthy subjects performed mild exercise on a cycloergometer in different conditions: rest/exercise, normoxia/hypoxia and no added dead space/added dead space (aDS)...
December 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28755899/the-serve-hf-safety-notice-in-clinical-practice-experiences-of-a-tertiary-sleep-center
#20
Anne-Kathrin Brill, Jacqueline Pichler Hefti, Thomas Geiser, Sebastian R Ott
BACKGROUND: In May 2015, the results of the SERVE-HF trial - addressing adaptive servoventilation (ASV) in chronic congestive heart failure (CHF) patients with central sleep apnea (CSA) - prompted a field safety notice. It was recommended to identify CHF patients treated with ASV and to advise the discontinuation of the treatment. We aimed to analyze the identification process and effect of ASV discontinuation on affected patients. METHODS: 126 patients treated with ASV on May 13th, 2015 at our institution were retrospectively analyzed...
September 2017: Sleep Medicine
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