Sleep & breathing = Schlaf & Atmung
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The upper airway (UA) anatomical collapsibility, UA muscle responsiveness, breathing control, and/or arousability are important contributing factors for obstructive sleep apnea (OSA). Differences in clinical manifestations of OSA are believed to reflect interactions among these factors. We aimed to classify OSA patients into subgroups based on polysomnographic (PSG) variables using cluster analysis and assess each subgroup's characteristics. ⋯ Patients with OSA could be divided into three distinct subgroups based on PSG variables. This clustering may be used for assessing the pathophysiology of OSA to tailor individual treatment other than continuous positive airway pressure therapy.
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Obstructive sleep apnea (OSA) is very common occurrence among morbidly obese patients. Our main objectives were to validate the No-Apnea, a 2-item screening tool, in morbidly obese patients and compare its performance with three other instruments: STOP-Bang questionnaire, NoSAS score, and Epworth Sleepiness Scale (ESS). ⋯ No-Apnea is a useful and practical tool for screening of OSA in morbidly obese patients, with non-inferior performance to STOP-Bang questionnaire and NoSAS score.
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Letter Case Reports
Finding a needle in the haystack-narcolepsy and obstructive sleep apnea.
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Meta Analysis Comparative Study
Prophylactic use of exogenous melatonin and melatonin receptor agonists to improve sleep and delirium in the intensive care units: a systematic review and meta-analysis of randomized controlled trials.
To investigate the efficacy of exogenous administration of melatonin and melatonin receptor agonists for the improvement of delirium, sleep, and other clinical outcomes of subjects in the intensive care unit (ICU). We carefully searched three electronic databases, i.e., Pubmed/Medline, Embase, and Cochrane library, to retrieve randomized controlled trials (RCTs) administrating melatonin or melatonin receptor agonists to adult subjects admitted to the ICU. Useful data such as the prevalence of delirium, duration of sleep, number of awakenings per night, duration of mechanical ventilation, and ICU stay as well as in-ICU mortality were extracted and pooled by using a random effect model. ⋯ Administration of exogenous melatonin and melatonin receptor agonists was associated with a trend towards elongated duration of sleep (pooled weighted mean difference/WMD = 0.43; 95% confidence intervals/CIs, - 0.02~0.88, p = 0.063) and could decrease the number of awakenings per night (pooled WMD = - 2.03; 95% CIs, - 3.83~- 0.22, p = 0.028). Meanwhile, participants in the treatment group showed a significantly reduced prevalence of delirium (pooled risk ratio/RR = 0.49; 95% CIs, 0.28~0.88, p = 0.017) and duration of ICU stay (pooled WMD = - 0.32; 95% CI, - 0.56~- 0.07, p = 0.002) in comparison with those in the control group. Exogenous administration of melatonin and melatonin receptor agonists could improve the sleep of subjects in the intensive care units, which may play an important role in decreasing the prevalence of delirium and shortening duration of ICU stay.
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Disorders of arousal include confusional arousals, sleepwalking and sleep terrors. The diagnosis of disorders of arousal is based on the clinical criteria established in the International Classification of Sleep Disorders, third edition, although the interobserver reliability of these criteria has never been investigated. The aim of this study was to estimate the inter-rater reliability of the diagnostic criteria for disorders of arousal throughout the whole life in order to understand their feasibility in clinical daily activity and in multicenter observational studies. ⋯ The International Classification of Sleep Disorders, Third Edition criteria are adequate for a reliable diagnosis of disorders of arousal. Further validation studies, confirming DOA diagnosis with video polysomnography, are needed to investigate the predictive value of ICSD-3 criteria.