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Central apnea

Hadil Ak AlOtair, Abdulaziz H Alzeer, Mohammed A Abdou, Shaden O Qasrawi
Central alveolar hypoventilation is rarely encountered. This case report describes a young woman who was recently diagnosed with hypertension and ischemic heart disease. She presented to the emergency room with hypercapnic respiratory failure, for which she was mechanically ventilated. This was preceded by an acute upper respiratory tract infection. She was initially suspected to have Guillain-Barré syndrome, but further investigations ruled out neuromuscular or autoimmune disorders. Sleep-related hypoventilation was suspected after she experienced recurrent apneas at night that resulted in re-intubation...
March 2018: Saudi Medical Journal
Julio Cesar Castellanos-Ramírez, Alvaro J Ruíz, Patricia Hidalgo-Martínez, Liliana Otero-Mendoza
Sleep studies conducted at an altitude that is different from the home altitude can yield misleading results regarding the severity of obstructive sleep apnea (OSA). The objective of the present study was to determine the sleep characteristics of a patient undergoing polysomnography (PSG) in three Colombian cities at different altitudes (Bogotá, at 2,640 m above sea level [ASL]; Bucaramanga, at 959 m ASL; and Santa Marta, at 15 m ASL). The patient was an obese man with diabetes and suspected OSA. All PSG recordings were scored and interpreted in accordance with American Academy of Sleep Medicine criteria...
January 2018: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
David Stevens, Rodrigo Tomazini Martins, Sutapa Mukherjee, Andrew Vakulin
Sleep-disordered breathing (SDB), encompassing both obstructive and central sleep apnea, is prevalent in at least 50% of stroke patients. Small studies have shown vast improvements in post-stroke functional recovery outcomes after the treatment of SDB by continuous positive airway pressure. However, compliance to this therapy is very poor in this complex patient group. There are alternative therapy options for SDB that may be more amenable for use in at least some post-stroke patients, including mandibular advancement, supine avoidance, and oxygen therapy...
2018: Frontiers in Surgery
Raza M Alvi, Noor Tariq, Atul Malhotra, Magid Awadalla, Virginia Triant, Markella V Zanni, Tomas G Neilan
Background: Sleep apnea (SA) is common and has prognostic significance among broad groups of patients with heart failure (HF). Among persons living with HIV (PLHIV), both SA and HF are reported. However, there are no data characterizing the presence, associations and prognostic significance of SA among PLHIV with HF. Methods: We conducted a single center study of PLHIV admitted with HFrEF (LVEF of <50%) and analyzed the relationship of SA with 30-day HF hospital readmission rate, cardiovascular (CV) and all-cause mortality...
March 9, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
Anthony R Bain, Ivan Drvis, Zeljko Dujic, David B MacLeod, Philip N Ainslie
NEW FINDINGS: What is the topic of this review? This review provides an up-to-date assessment of the physiology involved with extreme static dry-land breath holding in trained apneists. What advances does it highlight? We specifically highlight the recent findings involved with the cardiovascular, cerebrovascular, and metabolic function during a maximal breath hold in elite apneists. ABSTRACT: Breath hold related activities have been performed for centuries, but only recently within the last ∼30 years has it emerged as an increasingly popular competitive sport...
March 7, 2018: Experimental Physiology
Paul M Macey, Natasha Haris, Rajesh Kumar, M Albert Thomas, Mary A Woo, Ronald M Harper
INTRODUCTION: Obstructive sleep apnea (OSA) affects approximately 10% of adults, and alters brain gray and white matter. Psychological and physiological symptoms of the disorder are sex-specific, perhaps related to greater injury occurs in female than male patients in white matter. Our objective was to identify influences of OSA separated by sex on cortical gray matter. METHODS: We assessed cortical thickness in 48 mild-severe OSA patients (mean age±std[range] = 46...
2018: PloS One
Sheldon H Preskorn
This column is the fifth in a series examining the advances being made in central nervous system drug development because of advances in molecular pharmacology and an improved understanding of the neurobiology underlying disturbances in brain function including psychiatric illnesses. This column covers the special animal and human studies conducted as part of the development of suvorexant, which is the first in the class of dual orexin 1 and 2 receptor antagonists to be approved; it has an indication for the treatment of disturbances in sleep onset and maintenance...
March 2018: Journal of Psychiatric Practice
Paula Casas, Francisco J Ascaso, Eugenio Vicente, Gloria Tejero-Garcés, María I Adiego, José A Cristóbal
BACKGROUND: To assess the retinal sensitivity in obstructive sleep apnea hypopnea syndrome (OSAHS) patients evaluated with standard automated perimetry (SAP). And to correlate the functional SAP results with structural parameters obtained with optical coherence tomography (OCT). METHODS: This prospective, observational, case-control study consisted of 63 eyes of 63 OSAHS patients (mean age 51.7 ± 12.7 years, best corrected visual acuity ≥20/25, refractive error less than three spherical or two cylindrical diopters, and intraocular pressure < 21 mmHg) who were enrolled and compared with 38 eyes of 38 age-matched controls...
March 2, 2018: BMC Ophthalmology
Piyush Das, Rahul Kashyap, Suresh Kotagal
Treatment options may be limited for infants with obstructive sleep apnea when there is no surgically correctable upper airway lesion. We therefore evaluated, retrospectively, the efficacy of low-flow oxygen as a therapeutic option for infant obstructive sleep apnea. We reviewed the medical charts of 23 infants who had undergone a therapeutic trial of low-flow oxygen during polysomnography. Split-night polysomnography was used in 21/23 subjects while 2/23 had undergone two separate, full-night polysomnography sleep architecture and respiratory findings on the baseline polysomnogram segment that was obtained in room air were compared with the segment on low-flow oxygen (0...
March 2, 2018: Children
Ayşe İriz, Mehmet Düzlü, Oğuz Köktürk, Yusuf Kemal Kemaloğlu, Fakih Cihat Eravcı, Işık Sibel Küükünal, Recep Karamert
Background/aim: Obstructive sleep apnea syndrome (OSAS) is a disease characterized by repeated hypoxia attacks during sleep. The effect of hypoxia on the central nervous system is a well-known entity. In this study we aimed to investigate the effect of OSAS on the central auditory system. Materials and methods: Twenty-one OSAS patients diagnosed by polysomnography (PSG) and 10 control subjects were included in the study. After a thorough otorhinolaryngology examination, all subjects underwent pure tone audiometry (250 to 8000 Hz frequency)...
February 23, 2018: Turkish Journal of Medical Sciences
Akiko Tsujisaka, Shingo Haraki, Shigeru Nonoue, Akira Mikami, Hiroyoshi Adachi, Takahiro Mizumori, Hirofumi Yatani, Atsushi Yoshida, Takafumi Kato
PURPOSE: Concomitant occurrence of respiratory events can be often overlooked in the clinical practice of SB. This study assessed physiological characteristics of rhythmic masticatory muscle activity (RMMA) and concomitant respiratory events in young SB subjects asymptomatic to obstructive sleep apnea (OSA). METHODS: Twenty-two subjects (age: 24.1±1.9years; F 8: M 14; BMI: 20.2±1.9kg/m2 ) were polysomnographically diagnosed as moderate-severe SB. Sleep architecture, oromotor (RMMA and non-specific masseter activity [NSMA]) and apnea/hypopnea events were scored...
February 20, 2018: Journal of Prosthodontic Research
Ragnhild L Tveit, Sverre Lehmann, Bjørn Bjorvatn
STUDY OBJECTIVES: The objective was to investigate the prevalence of heart attack, angina pectoris, stroke, hypertension, diabetes mellitus, chronic obstructive pulmonary disease, asthma and obesity in relation to the presence and severity of obstructive sleep apnea. METHODS: The sample consisted of 1887 patients, with mean age of 48.6 years (range 16-83 years), referred to a university hospital on suspicion of obstructive sleep apnea. The patients filled out a questionnaire asking whether they were previously diagnosed with the comorbidities in interest...
2018: PloS One
Chris Y Wu, Tanawan Riangwiwat, Pattara Rattanawong, Brooke L W Nesmith, Avnish Deobhakta
PURPOSE: Obstructive sleep apnea (OSA) has been associated with an array of ocular disorders. This systematic review aims to investigate the association of OSA with central serous chorioretinopathy (CSCR) and subfoveal choroidal thickness changes on enhanced depth imaging optical coherence tomography. METHODS: Systematic review and meta-analysis of all articles published up to November 2017 examining rate of OSA in patients with CSCR versus controls or examining subfoveal choroidal thickness measurements on enhanced depth imaging optical coherence tomography in patients with OSA versus controls...
February 22, 2018: Retina
Stacey Gunn, Sreelatha Naik, Matt Travis Bianchi, Robert Joseph Thomas
Study Objectives: Adaptive servo ventilation (ASV) devices provide anti-cyclic pressure support for treatment of central/complex sleep apnea, including in heart failure patients. Variability in responses in the clinic and negative clinical trials motivated assessment of standard and novel signal biomarkers for ASV efficacy. Methods: Multiple clinical databases were queried to assess potential signal biomarkers of ASV effectiveness, including 1) Attended laboratory adaptive ventilation titrations: 108, of which 66 had mainstream ETCO2 measurements...
February 17, 2018: Sleep
Saleheddine Rekik, Francis Martin, Pauline Dodet, Stefania Redolfi, Smaranda Leu-Semenescu, Jean-Christophe Corvol, David Grabli, Isabelle Arnulf
OBJECTIVES: To determine the frequency of sleep breathing disorders in multiple systemic atrophy (MSA, combining Parkinsonism, cerebellar syndrome, and dysautonomia) and evaluate the benefit/tolerance of various modes of ventilation. METHODS: We retrospectively analyzed 45 patients with MSA having undergone a videopolysomnography. Their sleep characteristics were compared to those of 45 patients with Parkinson's disease and 45 healthy controls, matched for age and sex...
February 2018: Sleep Medicine
Christina Schmidleitner, Michael Arzt, Maria Tafelmeier, Sarah Ripfel, Miriam Fauser, Teresa Weizenegger, Bernhard Flörchinger, Daniele Camboni, Sigrid Wittmann, Florian Zeman, Christof Schmid, Lars S Maier, Stefan Wagner, Christoph Fisser
BACKGROUND: The development of malignant ventricular arrhythmias due to abnormal cardiac repolarization is a major complication after coronary artery bypass graft surgery (CABG). Sleep-disordered breathing (SDB) is linked to prolonged cardiac repolarization in non-surgical patients. This study evaluates cardiac repolarization in patients with and without SDB who underwent CABG. METHODS: 100 patients who had received CABG (84% men, age 68 ± 10 years, body-mass-index [BMI] 28...
February 2018: Sleep Medicine
Martin Glos, AbdelKebir Sabil, Katharina Sophie Jelavic, Christoph Schöbel, Ingo Fietze, Thomas Penzel
STUDY OBJECTIVES: In obstructive sleep apnea (OSA) esophageal pressure (Pes) is the gold standard for measurement of respiratory effort, and respiratory inductance plethysmography (RIP) is considered an accepted measurement technique. However, the use of RIP could lead to limited accuracy in certain cases and therefore suprasternal pressure (SSP) monitoring might improve the reliability of OSA diagnosis. We aimed to use SSP for the visual characterization of respiratory events in adults and compared results to those obtained by RIP from polysomnography (PSG)...
February 13, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
Leay Kiaw Er, Shinn-Kuang Lin, Stephen Shei-Dei Yang, Chou-Chin Lan, Yao-Kuang Wu, Mei-Chen Yang
Treatment-emergent central sleep apnea has recently been noted after various treatment modalities for obstructive sleep apnea. It often remits spontaneously or can be treated with continuous positive airway pressure. However, we encountered a pediatric patient with obstructive sleep apnea who presented with severe complications, including growth failure, attention-deficit hyperactivity disorder, poor school performance, daytime sleepiness, and urinary difficulty that required permanent cystostomy. His obstructive sleep apnea resolved after adenotonsillectomy...
February 13, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
Dushyanth Babu Jasti, Sarat Mallipeddi, A Apparao, B Vengamma, Satyarao Kolli, A Mohan
Objective: The objective of this study is to study the quality of sleep, sleep disorders, and polysomnographic profile in Parkinsonism patients from rural areas and to correlate polysomnographic profile with the staging of disease and with sleep questionnaire. Materials and Methods: Between May 2014 and December 2015, 168 Parkinsonism patients were prospectively screened using sleep questionnaire; Epworth Sleepiness Scale (ESS), Pittsburgh Sleep Quality Index (PSQI), Parkinson Disease Sleep Score-2 (PDSS-2)...
January 2018: Journal of Neurosciences in Rural Practice
L Lerousseau
Excessive daytime sleepiness is a major symptom in cases of the obstructive sleep apnea-hypopnea syndrome. Most often, it is vastly improved by treatment with continuous positive airway pressure (CPAP). The most effective way to confirm its disappearance is through wakefulness maintenance testing. If residual sleepiness remains, despite CPAP, further diagnostic investigation must be carried out. Firstly, it must be assessed whether the treatment is fully effective (apnea hypopnea index<10/h) by examining flow limitations under treatment (polysomnography) and whether it is sufficiently used (>6h/night)...
February 14, 2018: Revue des Maladies Respiratoires
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