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https://www.readbyqxmd.com/read/28651750/reduced-orexin-immunoreactivity-in-perry-syndrome-and-multiple-system-atrophy
#1
Takayasu Mishima, Koji Kasanuki, Shunsuke Koga, Monica Castanedes-Casey, Zbigniew K Wszolek, Yoshio Tsuboi, Dennis W Dickson
INTRODUCTION: Orexin is a neuropeptide that plays a key role in maintaining a state of arousal, and possibly associates with sleep apnea syndrome (SAS). Reduced orexin immunoreactivity has been reported in various neurologic conditions such as narcolepsy, Alzheimer's disease, Lewy body disease and multiple system atrophy (MSA); however, there has been no report investigating orexin in Perry syndrome, a rare hereditary neurodegenerative disease characterized by four clinical cardinal signs (parkinsonism, depression/apathy, weight loss, and central hypoventilation)...
June 12, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28643476/low-leptin-concentration-may-identify-heart-failure-patients-with-central-sleep-apnea
#2
Ivan Cundrle, Virend K Somers, Prachi Singh, Bruce D Johnson, Christopher G Scott, Lyle J Olson
Low leptin concentration has been shown to be associated with central sleep apnea in heart failure patients. We hypothesized that low leptin concentration predicts central sleep apnea. Consecutive ambulatory New York Heart Association (NYHA) classes I-IV heart failure patients were studied prospectively, including measurement of serum leptin, echocardiography and polysomnography. Sleep apnea was defined by type (central/mixed/obstructive) and by apnea-hypopnea index ≥5 by polysomnography. Subjects were divided into four groups by polysomnography: (1) central sleep apnea, (2) mixed apnea, (3) no apnea and (4) obstructive sleep apnea...
June 23, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28637078/-update-cardiovascular-sleep-medicine
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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/28583413/effect-of-pulmonary-hyperinflation-on-central-blood-volume-an-mri-study
#9
Tanja Mijacika, Kasper Kyhl, Daria Frestad, F Otto Barak, Ivan Drvis, Niels H Secher, Zeljko Dujic, Per Lav Madsen
Pulmonary hyperinflation attained by glossopharyngeal insufflation (GPI) challenges the circulation by compressing the heart and pulmonary vasculature. Our aim was to determine the amount of blood translocated from the central blood volume during GPI. Cardiac output and cardiac chamber volumes were assessed by magnetic resonance imaging in twelve breath-hold divers at rest and during apnea with GPI. Pulmonary blood volume was determined from pulmonary blood flow and transit times for gadolinium during first-pass perfusion after intravenous injection...
June 3, 2017: Respiratory Physiology & Neurobiology
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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/28527784/phrenic-and-hypoglossal-nerve-activity-during-respiratory-response-to-hypoxia-in-6-ohda-unilateral-model-of-parkinson-s-disease
#20
Kryspin Andrzejewski, Krystyna Budzińska, Katarzyna Kaczyńska
AIMS: Parkinson's disease (PD) patients apart from motor dysfunctions exhibit respiratory disturbances. Their mechanism is still unknown and requires investigation. Our research was designed to examine the activity of phrenic (PHR) and hypoglossal (HG) nerves activity during a hypoxic respiratory response in the 6-hydroxydopamine (6-OHDA) model of PD. MAIN METHODS: Male adult Wistar rats were injected unilaterally with 6-OHDA (20μg) or the vehicle into the right medial forebrain bundle (MFB)...
July 1, 2017: Life Sciences
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