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Central sleep apnea

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https://www.readbyqxmd.com/read/28637078/-update-cardiovascular-sleep-medicine
#1
Benedikt Linz, Michael Böhm, Dominik Linz
The prevalence of sleep-disordered breathing (SDB) is high in patients with cardiovascular diseases. Typical symptoms like daytime sleepiness can be absent and those patients may report unspecific, therapy-resistant symptoms related to their underlying disease. Particularly sleep-related symptoms like nocturia, nocturnal dyspnea and pectangina can be present. Based on the results of recently published studies, the treatment of central sleep apnea in patients with symptomatic, systolic heart failure by adaptive servo-ventilation is no longer recommended...
June 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28635906/-obstructive-sleep-apnea-at-high-altitude
#2
A K Myrzaakhmatova
Obstructive sleep apnea (OSA) is an important and socially relevant problem of modern medicine, which is referred to as a most common pathological condition. The problem of OSA is especially urgent for inhabitants of high mountainous regions, as a combination of climatic, social, and cultural factors can significantly affect the course of the disease in both indigenous highlanders and people temporarily residing at high altitude. The paper reviews the current literature covering the problem of OSA at high altitude...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28629918/trajectories-of-emergent-central-sleep-apnea-during-continuous-positive-airway-pressure-therapy
#3
Dongquan Liu, Jeff Armitstead, Adam Benjafield, Shiyun Shao, Atul Malhotra, Peter A Cistulli, Jean-Louis Pepin, Holger Woehrle
BACKGROUND: Emergence of central sleep apnea (CSA) during positive airway pressure (PAP) therapy has been observed clinically in ≈10% of OSA titration studies. This study assessed a PAP database to investigate trajectories of treatment-emergent CSA during continuous PAP (CPAP) therapy. METHODS: US telemonitoring device data were analyzed for the presence/absence of emergent CSA at baseline (Week 1) and Week 13. Defined groups were: obstructive sleep apnea (OSA; average central apnea index [CAI] <5/hour in Week 1, <5/hour in Week 13); transient CSA (CAI ≥5/hour in Week 1, <5/hour in Week 13); persistent CSA (CAI ≥5/hour in Week 1, ≥5/hour in Week 13); emergent CSA (CAI <5/hour in Week 1, ≥5/hour in Week 13)...
June 16, 2017: Chest
https://www.readbyqxmd.com/read/28617938/fragile-x-syndrome-an-overview-and-update-of-the-fmr1-gene
#4
REVIEW
Montserrat Mila, Maria Isabel Alvarez-Mora, Irene Madrigal, Laia Rodriguez-Revenga
Fragile X syndrome (FXS) is the most common cause of inherited intellectual disability and the leading form of the monogenic cause of autism. FMR1 premutation is the first single-gene cause of primary ovarian failure (FXPOI) and one of the most common causes of ataxia (FXTAS), multiple additional phenotypes such as fibromyalgia, hypothyroidism, migraine headaches, sleep disturbances, sleep apnea, restless legs syndrome, central pain syndrome, neuropathy and neuropsychiatric alterations has been described. Clinical involvement in men and women carrying the FMR1 premutation currently constitutes a real health problem in the society that should be taken into account...
June 15, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28613222/laboratory-evaluation-of-hypercoagulable-states-in-patients-with-central-retinal-vein-occlusion-who-are-less-than-56-years-of-age
#5
Qingyun Liu, J Michael Lahey, Rachel Karlen, Jay M Stewart
PURPOSE: To investigate whether the results of early tests for hypercoagulability are correlated with the development of central retinal vein occlusion risk factors later in life and to evaluate the necessity of these tests in younger patients. METHODS: This was a retrospective, observational case series. From January 1995 to December 2014, 55 patients aged below 56 years with central retinal vein occlusion (CRVO) were enrolled in the study. Laboratory evaluations for homocysteine, activated protein C resistance, protein C activity, protein S activity, antithrombin III activity, antiphospholipid antibodies, and anticardiolipin antibodies were obtained at the onset of CRVO...
April 24, 2017: Retina
https://www.readbyqxmd.com/read/28583758/perioperative-complications-in-patients-with-sleep-apnea-undergoing-total-joint-arthroplasty
#6
Syed Y Naqvi, Amin H Rabiei, Mitchell G Maltenfort, Camilo Restrepo, Eugene R Viscusi, Javad Parvizi, Mohammad R Rasouli
BACKGROUND: This study aims to evaluate the effect of sleep apnea (SA) on perioperative complications after total joint arthroplasty (TJA) and whether the type of anesthesia influences these complications. METHODS: Using the ninth and tenth revisions of the International Classification of Diseases, coding systems, we queried our institutional TJA database from January 2005 to June 2016 to identify patients with SA who underwent TJA. These patients were matched in a 1:3 ratio based on age, gender, type of surgery, and comorbidities to patients who underwent TJA but were not coded for SA...
April 27, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28582304/surgical-outcomes-for-speech-surgery-in-22q11-2-deletion-syndrome-the-dilemma-of-persistent-velopharyngeal-insufficiency-after-pharyngeal-flap-operation
#7
Ryan D Wagner, Erik M Wolfswinkel, Edward P Buchanan, David Y Khechoyan
INTRODUCTION: The majority of patients with 22q11.2 deletion syndrome suffer from velopharyngeal insufficiency (VPI). Patients with 22q11.2 deletion syndrome (22qDS) commonly present with a large central velopharyngeal gap in the setting of poor velar and pharyngeal wall motion. The posterior pharyngeal flap is considered the most effective technique to treat VPI in this complex patient group. This study aims to critically evaluate success rates of surgical management of VPI in 22qDS patients and discuss options for management of a failed posterior pharyngeal flap (PPF) with persistent VPI...
June 2, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28558398/-guidelines-in-practice-the-new-s3-guideline-sleeping-disorders-sleep-related-abnormal-breathing
#8
Martin Gerlach, Bernd Sanner
Sleep related breathing disorders include central sleep apnea (CSA), obstructive sleep apnea (OSA), sleep-related hypoventilation, and sleep-related hypoxia. These disorders are frequent and growing in clinical relevance. The related chapter of the S3 guideline "Non-restorative sleep/Sleep disorders", published by the German Sleep Society (DGSM), has recently been updated in November 2016. Epidemiology, diagnostics, therapeutic procedures, and classification of sleep related disorders have been revised. Concerning epidemiology, a considerably higher mortality rate among pregnant women with OSA has been emphasized...
May 30, 2017: Pneumologie
https://www.readbyqxmd.com/read/28555387/ameliorating-the-severity-of-sleep-disordered-breathing-concomitant-with-heart-failure-status-after-percutaneous-transluminal-septal-myocardial-ablation-for-drug-refractory-hypertrophic-obstructive-cardiomyopathy
#9
Keitaro Akita, Yuichiro Maekawa, Takashi Kohno, Hikaru Tsuruta, Mitsushige Murata, Keiichi Fukuda
The coexistence of sleep-disordered breathing (SDB) and hypertrophic obstructive cardiomyopathy (HOCM) has widely been recognized; however, the impact of percutaneous transluminal septal myocardial ablation (PTSMA) for HOCM on SDB remains unknown. Herein, we examine cardiorespiratory polygraph parameters in patients with drug-refractory HOCM before and after PTSMA. Forty consecutive drug-refractory HOCM patients, admitted to Keio University Hospital, and who underwent cardiorespiratory polygraphy were retrospectively analyzed...
May 29, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28543355/nurse-versus-physician-led-care-for-obstructive-sleep-apnea-a-systematic-review-and-meta-analysis-of-randomised-trials
#10
REVIEW
Fengqiu Gong, Xiaojun Chen, Yaoye Wu, Dianye Yao, Lihong Xie, Qiuyi Ouyang, Ping Wang, Gang Niu
AIM: To evaluate the effectiveness of nurse-led care for obstructive sleep apnoea compared with physician-led care. BACKGROUND: The incidence of obstructive sleep apnoea is increasing worldwide. There is a need for cost-effective care models to ease off the pressure on tertiary care centres and divert care to the community. DESIGN: Systematic review and meta-analysis. DATA SOURCES: We searched major electronic databases (MEDLINE, EMBASE, AMED, British Nursing Index, CINAHL, HMIC, PsycINFO, Health Business Elite and the Cochrane Central Register of Controlled Trials CENTRAL) from inception till December 2016 using a structured search strategy for all randomised trials evaluating nurse-led treatment interventions for adults with obstructive sleep apnoea compared with physician-led ones...
May 24, 2017: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/28542657/-polygraphy-in-hospitalized-children-under-3-months
#11
Daniel Zenteno, Iván Rodríguez-Núñez, Ignacio Molina, Rubén Peña, Carla Rivas, Jaime Tapia, Pablo Brockmann
Apnea and apparently lethal events have great etiological diversity thus complementary tests may help diagnosis. The aim of this study was to describe the results of polygraph studies of children under 3 months hospitalized with suspected apnea. PATIENTS AND METHODS: Retrospective case series. Children under 3 months with suspected apnea were considered and in whom a polygraphy (PG) was performed during hospitalization. General data, the apnea/hypopnea index (AHI), index of central. apnea, obstructive apnea index, average and minimum saturation were recorded...
April 2017: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/28539541/sleep-disordered-breathing-in-heart-failure%C3%A3-a-therapeutic-dilemma
#12
Nobuhiko Haruki, John S Floras
Sleep-disordered breathing (SDB) occurs in approximately 50% of patients with reduced left ventricular ejection fraction receiving contemporary heart failure (HF) therapies. Obstructive (OSA) and central sleep apneas (CSA) interrupt breathing by different mechanisms but impose qualitatively similar autonomic, chemical, mechanical, and inflammatory burdens on the heart and circulation. Because contemporary evidence-based drug and device HF therapies have little or no mitigating effect on the acute or long-term consequences of such stimuli, there is a sound mechanistic rationale for targeting SDB to reduce cardiovascular event rates and prolong life...
May 23, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28536140/angiotensin-converting-enzyme-1-in-the-median-preoptic-nucleus-contributes-to-chronic-intermittent-hypoxia-hypertension
#13
Katelynn E Faulk, T Prashant Nedungadi, J Thomas Cunningham
Obstructive sleep apnea is associated with hypertension and cardiovascular disease. Chronic intermittent hypoxia is used to model the arterial hypoxemia seen in sleep apnea patients and is associated with increased sympathetic nerve activity and a sustained diurnal increase in blood pressure. The renin angiotensin system has been associated with hypertension seen in chronic intermittent hypoxia. Angiotensin converting enzyme 1, which cleaves angiotensin I to the active counterpart angiotensin II, is present within the central nervous system and has been shown to be regulated by AP-1 transcription factors, such as ΔFosB...
May 2017: Physiological Reports
https://www.readbyqxmd.com/read/28530876/research-continuous-surveillance-of-sleep-apnea-patients-in-a-medical-surgical-unit
#14
Dana Supe, Leah Baron, Tom Decker, Kyle Parker, Jeanne Venella, Sarah Williams, Kari Beaton, John Zaleski
This report consists of two separate studies on the use of continuous capnography monitoring conducted in an effort to improve patient safety at Virtua Health System. The desire for improved patient safety is motivating continuous monitoring and improved surveillance in clinical areas not traditionally equipped for such monitoring. We explored the use of remote monitoring of capnography, using enterprise middleware, in patients recovering from surgery in a medical-surgical unit. Continuous monitoring traditionally has been used in higher-acuity settings, such as intensive care units...
May 2017: Biomedical Instrumentation & Technology
https://www.readbyqxmd.com/read/28528846/the-multi-level-impact-of-chronic-intermittent-hypoxia-on-central-auditory-processing
#15
Eddie Wong, Bin Yang, Lida Du, Wai Hong Ho, Condon Lau, Ya Ke, Ying Shing Chan, Wing Ho Yung, Ed X Wu
During hypoxia, the tissues do not obtain adequate oxygen. Chronic hypoxia can lead to many health problems. A relatively common cause of chronic hypoxia is sleep apnea. Sleep apnea is a sleep breathing disorder that affects 3-7% of the population. During sleep, the patient's breathing starts and stops. This can lead to hypertension, attention deficits, and hearing disorders. In this study, we apply an established chronic intermittent hypoxemia (CIH) model of sleep apnea to study its impact on auditory processing...
May 19, 2017: NeuroImage
https://www.readbyqxmd.com/read/28527878/obstructive-sleep-apnea-and-diabetes-a-state-of-the-art-review
#16
REVIEW
Sirimon Reutrakul, Babak Mokhlesi
Obstructive sleep apnea (OSA) is a chronic treatable sleep disorder and a frequent comorbidity in patients with type 2 diabetes. Cardinal features of OSA, including intermittent hypoxemia and sleep fragmentation, have been linked to abnormal glucose metabolism in laboratory-based experiments. OSA has also been linked to the development of incident type 2 diabetes. The relationship between OSA and type 2 diabetes may be bidirectional in nature given that diabetic neuropathy can affect central control of respiration and upper airway neural reflexes promoting sleep-disordered breathing...
May 17, 2017: Chest
https://www.readbyqxmd.com/read/28522081/natural-course-and-potential-prognostic-factors-for-sleep-disordered-breathing-in-multiple-system-atrophy
#17
Yasuyoshi Ohshima, Hideaki Nakayama, Naho Matsuyama, Satoshi Hokari, Takuro Sakagami, Tomoe Sato, Toshiyuki Koya, Tetsuya Takahashi, Toshiaki Kikuchi, Masatoyo Nishizawa, Takayoshi Shimohata
OBJECTIVE/BACKGROUND: Multiple system atrophy (MSA) frequently results in the development of sleep-disordered breathing (SDB). Few reports have described the natural course of this phenomenon. The aim of the present study was to determine the natural course of SDB and prognostic factors associated with such conditions in MSA. PATIENTS/METHODS: Twenty-four consecutive patients were recruited with probable MSA, who had not been treated with continuous positive airway pressure (CPAP) and had undergone overnight polysomnography (PSG) more than once following the development of snoring or stridor...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28507531/noradrenergic-activation-of-hypoglossal-nucleus-modulates-the-central-regulation-of-genioglossus-in-chronic-intermittent-hypoxic-rats
#18
Xinshi Nie, Ling Zhou, Aidi Wang, Hongyu Jin, Zheng Qin, Jian Pang, Wei Wang, Jian Kang
Neuromuscular compensation of the genioglossus muscle can be induced by chronic intermittent hypoxia (CIH) in obstructive sleep apnea to maintain upper airway stability. Noradrenergic activation of hypoglossal nucleus plays a critical role in the central control of the genioglossus. However, it remains unknown whether norepinephrine takes part in the central regulation of the genioglossus during CIH. Adult male Wistar rats (n = 32) were studied to explore the influence of noradrenergic activation of hypoglossal nucleus on the central control of the genioglossus at different stages of CIH...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28506292/normobaric-hypoxia-overnight-impairs-cognitive-reaction-time
#19
Stephan Pramsohler, Stefan Wimmer, Martin Kopp, Hannes Gatterer, Martin Faulhaber, Martin Burtscher, Nikolaus Cristoph Netzer
BACKGROUND: Impaired reaction time in patients suffering from hypoxia during sleep, caused by sleep breathing disorders, is a well-described phenomenon. High altitude sleep is known to induce periodic breathing with central apneas and oxygen desaturations, even in perfectly healthy subjects. However, deficits in reaction time in mountaineers or workers after just some nights of hypoxia exposure are not sufficiently explored. Therefore, we aimed to investigate the impact of sleep in a normobaric hypoxic environment on reaction time divided by its cognitive and motoric components...
May 15, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28493179/where-to-position-osteotomies-in-genioglossal-advancement-surgery-based-on-locations-of-the-mental-foramen-canine-lateral-incisor-central-incisor-and-genial-tubercle
#20
Joshua S Park, Christopher Lee, Jason M Rogers, Ho-Hyun Sun, Yuan F Liu, Jeffrey A Elo, Jared C Inman
PURPOSE: The study aimed to provide precise measurements of anterior mandibular structural anatomy and to explore potential osteotomies for genioglossal advancement. METHODS: Cone beam computed tomography was used to analyze 33 randomly selected patients undergoing surgery for obstructive sleep apnea (OSA) between 2014 and 2016 at an academic surgical hospital. The locations of relevant mandibular structures were measured and statistical modeling was performed. RESULTS: Mean horizontal distances from midline to the mental foramina and the roots of the canine, lateral incisor, and central incisor were 22...
May 11, 2017: Oral and Maxillofacial Surgery
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