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Sleep Science

Marius Lebret, Bernard Wuyam, Dominique Bertrand, Christiane Chaudot, Jean-Louis Pépin, Jean-Christian Borel
Sleep-related breathing disturbances are exacerbated at altitude in patients with Obstructive Sleep Apnea (OSA). The objective of this case report was to determine if a portable auto-CPAP device effectively treated sleep apnea across different altitudes. We report the severity of sleep apnea from 60 to 12,000 feet high in a man with severe OSA (Apnea Hypopnea Index at diagnosis = 60 events/hour) during the 2017 Dakar rally over the Andes mountains. The man was equipped with a lightweight portable auto-CPAP device with a narrow window [6-8 cmH2 O]...
March 2018: Sleep Science
Maria de Lourdes Rabelo Guimarães, Ana Paula Hermont, Thais Moura Guimarães, Cibele Dal-Fabbro, Lia Bittencourt, Cauby Maia Chaves Junior
Mandibular advancement device (MAD) has been described as an alternative treatment to the severe obstructive sleep apnea (OSA), once it is not as effective as the continuous positive airway pressure therapy (CPAP) in reducing the apnea and hypopnea index (AHI). The objective of this study is to report a case using a MAD in a CPAP-intolerant patient suffering from severe OSA. Polysomnography exams were performed before and after treatment. Five months after fitting and titrating the MAD, the AHI was reduced from 80...
March 2018: Sleep Science
Sonal Sadashiv Kale, Pradnya Kakodkar, Sahana Hegde Shetiya
To assess the oral findings of patients who screen high and no risk for obstructive sleep apnea (OSA) reporting to outpatient department of a dental college. Methods: Patients coming to dental Out Patient Department (OPD) were screened using STOP questionnaire and were categorized into high (n=130) and no risk (n=130) OSA groups. BANG (body mass index, age, neck circumference and gender) was recorded for both the OSA risk group patients. Following this oral and general examination was performed using predetermined criteria for temporomandibular disorder (TMD), Angle's Class of Malocclusion, maxillary arch constriction, facial profile, Mallampati score for uvula, tongue size, depth of palatal vault and periodontitis...
March 2018: Sleep Science
Neda Sadat Nazaripanah, Yadollah Abolfathi Momtaz, Farideh Mokhtari, Robab Sahaf
Sleep disorder is associated with poor quality of life in old age. Therefore, it is imperative to identify contributing factors leading to sleep disorder. The current study aimed to examine the impact of urinary incontinence on sleep complaint after controlling for potential sociodemographic and health covariates. Materials and Methods: A cross-sectional study was conducted on a sample of 184 community dwelling older adults 60 years and older in Yazd, Iran, 2016. In order to obtain the sample a multistage proportional random sampling technique was employed...
March 2018: Sleep Science
Alvaro Monterrosa-Castro, Angélica Monterrosa-Blanco, Teresa Beltrán-Barrios
Hysterectomy is a common gynecologic surgery carried out to remove the pathologic uterus. Objective: To establish if sleep disorders and sexual function are associated with deterioration of the quality of life (QoL) in hysterectomized and sexually active women. Methods: A cross-sectional study was carried out with inhabitants from two cities of the Colombian Caribbean. The pollsters invited women aged between 40-59 years to participate; in their communities they applied surveys with demographic characteristics: Female Sexual Function Index, Atenas Insomnia Scale and Menopause Rating Scale...
March 2018: Sleep Science
Dimitrios Papadopoulos, Anastasia Kikemeni, Alexandra Skourti, Anastasia Amfilochiou
There is limited evidence about the effect of socio-economic status (SES) on the severity of obstructive sleep apnea (OSA). We aimed to investigate this relationship in a referral population in Greece, with regards to other established risk factors. Methods: We used a retrospective cross-sectional design to assess socio-economic status based on occupational activity in a sample of 282 OSA patients diagnosed in a public hospital sleep laboratory during one-year period. Demographic, anthropometric and social characteristics, as well as the Epworth sleepiness scale (ESS) scores and apnea-hypopnea indexes (AHI) of subjects in each socio-economic class were recorded and statistically significant differences were explored in univariate and multiple regression analysis...
March 2018: Sleep Science
Syaron Basnet, Ilona Merikanto, Tuuli Lahti, Satu Männistö, Tiina Laatikainen, Erkki Vartiainen, Timo Partonen
The seasonal pattern for mood and behaviour, the behavioural trait of morningness-eveningness, and sleep are interconnected features, that may serve as etiological factors in the development or exacerbation of medical conditions. Methods: The study was based on a random sample of inhabitants aged 25 to 74 years living in Finland. As part of the national FINRISK 2012 study participants were invited (n=9905) and asked whether the doctor had diagnosed or treated them during the past 12 months for chronic diseases...
March 2018: Sleep Science
Mindy Engle-Friedman, Gina Marie Mathew, Anastasia Martinova, Forrest Armstrong, Viktoriya Konstantinov
This study investigated the effects of sleep deprivation on perception of task difficulty and use of heuristics (mental shortcuts) compared to naturally-experienced sleep at home. Methods: Undergraduate students were screened and assigned through block-random assignment to Naturally-Experienced Sleep (NES; n =19) or Total Sleep Deprivation (TSD; n =20). The next morning, reported fatigue, perception of task difficulty, and use of "what-is-beautiful-is-good," "greedy algorithm," and "speed-accuracy trade-off" heuristics were assessed...
March 2018: Sleep Science
Anne Danielle Herlache, Kathryn M Lang, Zlatan Krizan
Although neuroticism is the strongest personality predictor of sleep disturbance, it is not clear whether dysphoric (Withdrawal) or angry (Volatility) aspect of neuroticism is more important and whether problematic technology use plays an intervening role. To this end, this study examined distinct contributions of neurotic withdrawal and volatility in predicting self-reported sleep disturbance while testing the mediating role of problematic internet use. Methods: One-hundred and fourty-three college students completed an online survey that included measures of neuroticism, sleep quality, and problematic internet use...
March 2018: Sleep Science
Geraldo Nunes Vieira Rizzo
to determine the value of dopamine transporter (DAT) neuroimaging radiotracer in a group of idiopathic rapid eye movement sleep behavior disorder (iRBD) patients regarding the development of a synucleinopathy. Methods: 6 retrospectively selected patients with clinical and polysomnographic diagnosis of iRBD, on treatment or not, were submitted to a single-photon emission computerized tomography (SPECT) with TRODAT. Results: Five from six patients have an abnormal test showing reduction in DAT density measured by the linkage potential on SPECT...
March 2018: Sleep Science
Vijay Kumar Chattu, Sateesh M Sakhamuri, Raman Kumar, David Warren Spence, Ahmed S BaHammam, Seithikurippu R Pandi-Perumal
Over the last three to four decades, it has been observed that the average total number of hours of sleep obtained per night by normal individuals have decreased. Concomitantly, global figures indicate that insufficient sleep is associated with serious adverse health and social outcomes. Moreover, insufficient sleep has been linked to seven of the fifteen leading causes of death. Additionally, current evidence suggests that sleep plays a significant role in determining cognitive performance and workplace productivity...
March 2018: Sleep Science
Monica L Andersen
No abstract text is available yet for this article.
March 2018: Sleep Science
Jerónimo Campos, Glenda Ernst, Magali Blanco, Alejandra Cassano, Iván Tello-Santa-Cruz, Cesar Cáceres-Monié, Alexys Muyran, Romina Cansonieri, Alejandro Salvado, Eduardo Borsini
Introduction: Obstructive Sleep Apnea (OSA) has been associated with an elevated risk of cardiac arrhythmia. Continuous positive airway pressure (CPAP) is the selected treatment for moderate to severe OSA and could improve arrhythmias in the long term. However, the acute effect of CPAP has not been studied in detail. Methods: We conducted a prospective study with 25 patients with moderate to severe OSA diagnosed by home respiratory polygraphy (RP) and arrhythmia and/or pauses in 24-hour Holter ECG...
January 2018: Sleep Science
Eduardo Borsini, Facundo Nogueira, Carlos Nigro
According to recent reports, sleep disorders affect 30% of the adult population and 5-10% of children. Obstructive Sleep Apnea Hypopnea Syndrome (OSA) has a considerable epidemiological impact and demand for consultation is growing in our community. Therefore, it is necessary to know the principles of interpretation of diagnostic methods. A suspicion of OSA requires confirmation. According to the guidelines of the Argentine Association of Respiratory Medicine, polysomnography (PSG) is the gold standard for OSA diagnosis, while home sleep testing (HST) can be accepted as a comparatively effective method depending on the clinical situation of the patient...
January 2018: Sleep Science
Matthew W Driller, Cheri D Mah, Shona L Halson
Introduction: Existing sleep questionnaires to assess sleep behaviors may not be sensitive in determining the unique sleep challenges faced by elite athletes. The purpose of the current study was to develop and validate the Athlete Sleep Behavior Questionnaire (ASBQ) to be used as a practical tool for support staff working with elite athletes. Methods: 564 participants (242 athletes, 322 non-athletes) completed the 18-item ASBQ and three previously validated questionnaires; the Sleep Hygiene Index (SHI), the Epworth Sleepiness Scale (ESS) and the Pittsburgh Sleep Quality Index (PSQI)...
January 2018: Sleep Science
Silvia Leiva, Jimena Madrazo, Claudio Podesta
Narcolepsy type 1 (NT1) is a chronic sleep disorder, characterized by excessive daytime sleepiness, cataplexy and fragmented nocturnal sleep. It is caused by a hypocretin deficiency due to a significant reduction of the neurons producing it. In the last years, it has been postulated that an autoimmune mechanism would be responsible for the destruction of these neurons in those genetically predisposed patients. The increased incidence of narcolepsy after the pandemic H1N1 influenza vaccination campaign in 2009-2010 is known...
January 2018: Sleep Science
Hisham Alshaer, Clodagh Ryan, Geoff R Fernie, T Douglas Bradley
Background: Attended polysomnography (PSG) is the standard diagnostic test for sleep apnea (SA). However, due to internight variability in SA, a single night PSG may not accurately reflect the true severity of SA. Although internight variability is a well-known phenomenon, its root causes have not been fully elucidated. The objective of this study was to determine factors associated with internight variability in the apnea-hypopnea index (AHI) and its magnitude in the home environment...
January 2018: Sleep Science
Giuliano da Paz Oliveira, Giselle Truzzi, Fernando Cascio Barros Lima, Fernando Morgadinho Santos Coelho
Stroke is an example of neurological diseases that can commonly drives Excessive Daytime Sleepiness (EDS). Extensive strokes with brain edema can leave a brain herniation and coma. Other causes of EDS after stroke are strategic lesions at Thalamus and brainstein. A 56-year-old man, right handed, with hypertension and hypercholesterolemia was admitted at Emergency Room due to 5 days onset of EDS, memory impairment, and left-sided weakness. A brain magnetic resonance imaging showed paramedian thalamic hyperintensity with rostral midbrain hyperintensity extending along the pial surface of the interpeduncular fossa...
January 2018: Sleep Science
Alvaro Emilio Ortiz-Naretto, Miriam Patricia Pereiro, Glenda Ernst, Eduardo Enrique Borsini
Introduction: Mountaineers exposed to hypobaric hypoxia (HH) show high-altitude periodic breathing (PB). Objective: To analyze high-altitude PB during the ascent of Mount Aconcagua (Argentina). Materials and Methods: Descriptive study in healthy volunteers using respiratory polygraphy (RP) at different altitudes. Results: We studied 8 andinist, mean age: 36 years old (25-51), body mass index (BMI) of 23.6 (20.9-28.7) and 22...
January 2018: Sleep Science
Nilda Becerra, Mónica Firmani, Emilia Valencia, Lissette Cazenave, Claudio Sotomayor, Paula Espinosa, Juan Carlos Salinas, Diana Florea
Objective: This study uses polysomnography and the Epworth sleepiness scale to assess the efficiency of the Ocluch© MAD in patients with Obstructive sleep apnea-hypopnea syndrome (OSAS), on overall respiratory disturbance indices (RDI), supine respiratory disturbance index (SRDI), minimum oxygen saturation, microarousals, CT90 (or ID90), sleep efficacy and snoring. These data are associated with skeletal class and facial biotype in order to establish predictive parameters for its effectiveness according to craniofacial morphology...
January 2018: Sleep Science
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