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Central sleep apnea

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https://www.readbyqxmd.com/read/29148180/dna-methylation-in-the-central-and-efferent-limbs-of-the-chemo-reflex-requires-carotid-body-neural-activity
#1
Jayasri Nanduri, Ying-Jie Peng, Ning Wang, Shakil A Khan, Gregg L Semenza, Nanduri R Prabhakar
Long-term exposure to intermittent hypoxia (LT-IH; 30 days), simulating blood O2 profiles during sleep apnea, has been shown to repress anti-oxidant enzyme (AOE) gene expression by DNA methylation in the carotid body (CB) reflex pathway, resulting in persistent elevation of plasma catecholamine levels and blood pressure. The present study examined the mechanisms by which LT-IH induces DNA methylation. Adult rats exposed to LT-IH showed elevated reactive oxygen species (ROS) in the CB, nucleus tractus solitarius (nTS) and rostroventrolateral medulla (RVLM) and adrenal medulla (AM), which represent the central and efferent limbs of the CB reflex, respectively...
November 17, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/29135910/sleep-disordered-breathing-in-children-with-recurrent-wheeze-asthma-a-single-centre-study
#2
Marco Zaffanello, Emma Gasperi, Laura Tenero, Michele Piazza, Angelo Pietrobelli, Luca Sacchetto, Franco Antoniazzi, Giorgio Piacentini
The relationship between asthma and sleep-disordered breathing is bidirectional due to common risk factors that promote airway inflammation. Obstructive sleep-disordered breathing and recurrent wheeze/asthma are conditions that involve the upper and the lower respiratory system, respectively. The aim of the present study was to investigate the sleep disordered breathing in children with recurrent wheeze/asthma. This was a retrospective study concerning children older than 2 years who underwent-between January 2014 and November 2016-an in-laboratory overnight polygraphic study...
November 14, 2017: Children
https://www.readbyqxmd.com/read/29109195/sleep-apnea-and-cardiovascular-disease-lessons-from-recent-trials-and-need-for-team-science
#3
REVIEW
Luciano F Drager, R Doug McEvoy, Ferran Barbe, Geraldo Lorenzi-Filho, Susan Redline
Emerging research highlights the complex interrelationships between sleep-disordered breathing and cardiovascular disease, presenting clinical and research opportunities as well as challenges. Patients presenting to cardiology clinics have a high prevalence of obstructive and central sleep apnea associated with Cheyne-Stokes respiration. Multiple mechanisms have been identified by which sleep disturbances adversely affect cardiovascular structure and function. Epidemiological research indicates that obstructive sleep apnea is associated with increases in the incidence and progression of coronary heart disease, heart failure, stroke, and atrial fibrillation...
November 7, 2017: Circulation
https://www.readbyqxmd.com/read/29108612/sleep-disordered-breathing-caused-by-chronic-opioid-use-diverse-manifestations-and-their-management
#4
REVIEW
Susmita Chowdhuri, Shahrokh Javaheri
Opioid-induced sleep disordered breathing presents a therapeutic predicament with the increasing incidence of prescription opioid use for noncancer chronic pain in the United States. Central sleep apnea with a Biot or cluster breathing pattern is characteristic of polysomnography studies; however, long-term clinical outcomes and the impact of therapy remain unknown. Novel ampakine-based therapies are being investigated. Randomized controlled trials with therapies that target the underlying pathophysiologic mechanisms of opioid-induced sleep disordered breathing are required...
December 2017: Sleep Medicine Clinics
https://www.readbyqxmd.com/read/29108611/positive-airway-pressure-therapy-for-hyperventilatory-central-sleep%C3%A2-apnea-idiopathic-heart-failure-cerebrovascular-disease-and-high-altitude
#5
REVIEW
Shahrokh Javaheri, Lee K Brown
Central sleep apnea (CSA) and Hunter-Cheyne-Stokes breathing (HCSB) are caused by failure of the pontomedullary pacemaker generating breathing rhythm. CSA/HCSB may complicate several disorders causing recurrent arousals and desaturations. Common causes of CSA in adults are congestive heart failure, stroke, and chronic use of opioids; opioids have hypoventilatory effects. Diagnosis and treatment of hyperventilatory CSA may improve quality of life, and, when associated with heart failure or cerebrovascular disease, reduce morbidity and perhaps mortality...
December 2017: Sleep Medicine Clinics
https://www.readbyqxmd.com/read/29108606/positive-airway-pressure-device-technology-past-and-present-what-s-in-the-black-box
#6
REVIEW
Lee K Brown, Shahrokh Javaheri
Since the introduction of continuous positive airway pressure (PAP) for the treatment of obstructive sleep apnea (OSA) in 1981, PAP technology has diversified exponentially. Compact and quiet fixed continuous PAP flow generators, autotitrating PAP devices, and bilevel PAP devices that can treat multiple sleep-disordered breathing phenotypes including OSA, central sleep apnea (CSA), combinations of OSA and CSA, and hypoventilation are available. Adaptive servo-ventilators can suppress Hunter-Cheyne-Stokes breathing and CSA and treat coexisting obstructive events...
December 2017: Sleep Medicine Clinics
https://www.readbyqxmd.com/read/29106863/clinical-variables-determining-the-success-of-adenotonsillectomy-in-children-with-down-syndrome
#7
Maíra da Rocha, Renata Caroline Mendonça Ferraz, Vitor Guo Chen, Gustavo Antonio Moreira, Reginaldo Raimundo Fujita
OBJECTIVES: To evaluate the evolution of polysomnographic parameters of children with Down syndrome and obstructive sleep apnea syndrome submitted to adenotonsillectomy and the interaction of comorbidities on therapeutic outcome. METHODS: Ninety patients with Down syndrome and habitual snoring were identified between 2005 and 2015 in a Pediatric Otorhinolaryngology Clinic. Parent's complaints were evaluated by the test of equality of two proportions. Wilcoxon test was used to examine pre- and post-operative polysomnographic differences...
November 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29102807/microstructural-cerebral-lesions-are-associated-with-the-severity-of-central-sleep-apnea-with-cheyne-stokes-respiration-in-heart-failure-and-are-modified-by-pap-therapy
#8
Anna Heidbreder, Jens Spießhöfer, Jörg Stypmann, Matthias Boentert, Peter Young, Thomas Duning
This study investigated the association of microstructural cerebral lesions with central sleep apnea with Cheyne-Stokes-respiration (CSA-CSR) in heart failure (HF) patients and the effect of positive airway pressure therapy (PAP) of CSA-CSR on these lesions. PAP-therapy was initiated in patients with HF with midrange and with reduced ejection fraction (NYHA≥II; left ventricular ejection fraction <50%) and proven CSA-CSR. Cerebral magnetic resonance imaging (MRI) scans at 3T including diffusion tensor imaging were obtained before and after 4 months of PAP-therapy...
November 2, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/29101166/transcription-factor-%C3%AE-fosb-acts-within-the-nucleus-of-the-solitary-tract-to-increase-mean-arterial-pressure-during-exposures-to-intermittent-hypoxia
#9
Qiong Wu, J Thomas Cunningham, Steve W Mifflin
ΔFosB is a member of the AP-1 family of transcription factors. ΔFosB has low constitutive expression in the central nervous system and is induced following exposure of rodents to intermittent hypoxia (IH), a model of the arterial hypoxemia that accompanies sleep apnea. We hypothesize ΔFosB in the nucleus of solitary tract (NTS) contributes to increased mean arterial pressure (MAP) during IH. The NTS of 11 male Sprague Dawley rats was injected (3 sites, 100nl per site) with a dominant-negative against ΔFosB (ΔJunD) in an adeno-associated viral vector (AAV)-green fluorescent protein (GFP) reporter...
November 3, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29079071/occult-spinal-cord-injury-after-blunt-force-trauma-in-a-patient-with-achondroplasia-a-case-report-and-review-of-trauma-management-strategy
#10
Martin Huecker, Zach Harris, Eric Yazel
BACKGROUND: Achondroplastic dwarfism is associated with anatomic abnormalities that can predispose to occult injury and challenges in trauma management. Airway anatomy is problematic due to macrocephaly, midface hypoplasia, and a narrow nasopharynx. Manipulation of the neck is very dangerous due to the high likelihood of preexisting cervicomedullary stenosis. Restrictive lung disease and obstructive sleep apnea may complicate respiratory status. Peripheral and central venous access can be difficult to obtain...
October 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29071163/resolution-of-periodic-breathing-in-a-child-with-idiopathic-pulmonary-arterial-hypertension
#11
Saadoun Bin-Hasan, Abdullah Khayat, Tilman Humpl, Janette T Reyes, Suhail Al-Saleh
Central sleep apnea (CSA) and periodic breathing are unusual findings described in pediatric patients with congestive heart failure. However, CSA has not been reported in children with pulmonary hypertension. We hereby report on a 10-year-old girl with idiopathic pulmonary arterial hypertension who had frequent central events in a periodic breathing fashion seen in her polysomnography, which was normalized following medical treatment leading to improvement of the pulmonary pressures.
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/29068049/the-safety-and-efficacy-of-powered-intracapsular-tonsillectomy-in-children-a-meta-analysis
#12
Ho Seok Lee, Ho Young Yoon, Ho Joon Jin, Se Hwan Hwang
OBJECTIVES: We performed a systemic review and meta-analysis regarding the postoperative pain, perioperative, and postoperative morbidity of powered intracapsular tonsillectomy and adenoidectomy (PITA) using a microdebrider as a method of tonsillectomy. DATA SOURCES: Five databases (PubMed, Scopus, Embase, Web of Science, and the Cochrane Central Register of Controlled Trials) in their entirety through March 2017. REVIEW METHODS: We included studies in which there was a comparison between groups of patients who underwent PITA (PITA group) and those who had extracapsular tonsillectomy (control group)...
October 25, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29067653/clinical-manifestations-and-overall-management-strategies-for-duchenne-muscular-dystrophy
#13
Takeshi Tsuda
Duchenne muscular dystrophy (DMD) is an X-linked genetic disorder that causes progressive weakness and wasting of skeletal muscular and myocardium in boys due to mutation of dystrophin. The structural integrity of each individual skeletal and cardiac myocyte is significantly compromised upon physical stress due to the absence of dystrophin. The progressive destruction of systemic musculature and myocardium causes affected patients to develop multiple organ disabilities, including loss of ambulation, physical immobility, neuromuscular scoliosis, joint contracture, restrictive lung disease, obstructive sleep apnea, and cardiomyopathy...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29065963/neurodevelopmental-outcomes-at-two-years-of-age-for-premature-infants-diagnosed-with-neonatal-obstructive-sleep-apnea
#14
Sean Deering, Lin Liu, Tania Zamora, Joanne Hamilton, Carl Stepnowsky
STUDY OBJECTIVES: Neurocognitive deficits have been shown in school-aged children with sleep apnea. The effect of obstructive sleep apnea (OSA) on the neurodevelopmental outcome of preterm infants is unknown. METHODS: A retrospective chart review was performed for all preterm infants (< 37 weeks) who had neonatal polysomnography (PSG) and completed neurodevelopmental assessment with the Bayley Scales of Infant and Toddler Development, 3rd Edition, between 2006 to 2015 at Riley Hospital...
October 18, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29065956/distinct-patterns-of-hyperpnea-during-cheyne-stokes-respiration-implication-for-cardiac-function-in-patients-with-heart-failure
#15
Elisa Perger, Toru Inami, Owen D Lyons, Hisham Alshaer, Stephanie Smith, John S Floras, Alexander G Logan, Michael Arzt, Joaquin Duran Cantolla, Diego Delgado, Michael Fitzpatrick, John Fleetham, Takatoshi Kasai, R John Kimoff, Richard S T Leung, Geraldo Lorenzi Filho, Pierre Mayer, Lisa Mielniczuk, Debra L Morrison, Gianfranco Parati, Sairam Parthasarathy, Stefania Redolfi, Clodagh M Ryan, Frederic Series, George A Tomlinson, Anna Woo, T Douglas Bradley
STUDY OBJECTIVES: In heart failure (HF), we observed two patterns of hyperpnea during Cheyne-Stokes respiration with central sleep apnea (CSR-CSA): a positive pattern where end-expiratory lung volume remains at or above functional residual capacity, and a negative pattern where it falls below functional residual capacity. We hypothesized the negative pattern is associated with worse HF. METHODS: Patients with HF underwent polysomnography. During CSR-CSA, hyperpnea, apnea-hyperpnea cycle, and lung to finger circulation times (LFCT) were measured...
October 18, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29064170/sleep-disordered-breathing-in-bronchopulmonary-dysplasia
#16
Luis E Ortiz, Sharon A McGrath-Morrow, Laura M Sterni, Joseph M Collaco
BACKGROUND: There are limited data on the effect of bronchopulmonary dysplasia (BPD) on sleep disordered breathing (SDB). We hypothesized that both the severity of prematurity and BPD would increase the likelihood of SDB in early childhood. Our secondary aim was to evaluate the association of demographic factors on the development of SDB. METHODS: This is a retrospective study of patient factors and overnight polysomnogram (PSG) data of children enrolled in our BPD registry between 2008 and 2015...
December 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29060172/monitoring-of-nocturnal-central-sleep-apnea-in-heart-failure-patients-using-noncontact-respiratory-differences
#17
Rami N Khushaba, Jeff Armitstead, Klaus Schindhelm
Monitoring of respiration patterns allows the early detection of various breathing disorders and may better identify those at risk for adverse acute outcomes in a variety of clinical settings. In this paper, we report on the use of SleepMinder (SM), a bedside non-contact Doppler-based biomotion recording sensor, to monitor remotely the nocturnal respiration patterns of 50 patients with systolic Heart failure (HF) while undergoing a lab based Polysomnography (PSG) test. A new respiration rate (RR) monitoring algorithm was developed based on the collected overnight radar signals...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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
#18
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/29038203/effect-of-continuous-positive-airway-pressure-weight-loss-or-continuous-positive-airway-pressure-plus-weight-loss-on-central-hemodynamics-and-arterial-stiffness
#19
Snigdha Jain, Indira Gurubhagavatula, Raymond Townsend, Samuel T Kuna, Karen Teff, Thomas A Wadden, Jesse Chittams, Alexandra L Hanlon, Greg Maislin, Hassam Saif, Preston Broderick, Zeshan Ahmad, Allan I Pack, Julio A Chirinos
Obesity and obstructive sleep apnea tend to coexist. Little is known about the effects of obstructive sleep apnea, obesity, or their treatment on central aortic pressures and large artery stiffness. We randomized 139 adults with obesity (body mass index >30 kg/m(2)) and moderate-to-severe obstructive sleep apnea to (1) continuous positive airway pressure (CPAP) therapy (n=45), (2) weight loss (WL) therapy (n=48), or (3) combined CPAP and WL (n=46) for 24 weeks. We assessed the effect of these interventions on central pressures and carotid-femoral pulse wave velocity (a measure of large artery stiffness), measured with arterial tonometry...
October 16, 2017: Hypertension
https://www.readbyqxmd.com/read/29025898/aging-is-associated-with-increased-propensity-for-central-apnea-during-nrem-sleep
#20
Susmita Chowdhuri, Sukanya Pranathiageswaran, Hillary Loomis-King, Anan Salloum, M Safwan Badr
The reason for increased sleep disordered breathing with predominance of central apneas in the elderly is unknown. We hypothesized that the propensity to central apneas is increased in older adults, manifested by a reduced carbon-dioxide (CO2) reserve in older compared to young adults during non-REM (NREM) sleep. METHODS: 10 elderly and 15 young healthy adults underwent multiple brief trials of nasal noninvasive positive pressure ventilation during stable NREM sleep. Cessation of mechanical ventilation (MV) resulted in hypocapnic central apnea or hypopnea...
October 12, 2017: Journal of Applied Physiology
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