Normal polysomnography parameters in healthy adults: a systematic review and meta-analysis

Boulos, Mark I.; Jairam, Trevor; Kendzerska, Tetyana; Im, James; Mekhael, Anastasia; Murray, Brian J.

doi:10.1016/s2213-2600(19)30057-8

Cited by 182 publications

(121 citation statements)

References 22 publications

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“…Hypotheses about sex differences in SRBD prevalence or severity mainly proposed hormonal causes and average anatomical differences 26 Although our finding of higher PLMSI in men also corroborates previous reports 12 clear-cut explaining hypotheses (as for SRBD) are generally lacking. Likewise here, biological sex differences have also previously been reported for increased slow-wave sleep 7,27 and increased REM latencies 23 in women of similar age than men.…”

Section: Discussionsupporting

confidence: 85%

“…A recent meta-analysis provided evidence about polysomnographic parameters in healthy adult men and women, also considering the effects of age. 23 Biological sex differences with respect to prevalence of sleep disorders 24 and with respect to sleep-related daytime symptoms in OSA 9 have also been suggested by previous reports. Likewise, Chervin et al 24 also suggested in an untreated OSAS sample that women report higher levels of sleepiness, fatigue, tiredness and "lack of energy".…”

Section: Discussionmentioning

confidence: 55%

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<p>Sex-Related Differences in Sleep-Related PSG Parameters and Daytime Complaints in a Clinical Population</p>

Eycken¹,

Neu²,

Newell³

et al. 2020

NSS

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Background: Recent research suggested that perception of sleep impairments might present sex-related effects (ie, women appear to be more prone to report fatigue rather than sleepiness). The latter has been evidenced in sleep-related breathing disorders (SRBD). Differently, it has been suggested that sleep-related movement disorders may also be associated to fatigue rather than to sleepiness. Whether sex-related differences would be similar irrespective of diagnosis remains unclear. Methods: During a one-year period, systematic clinical evaluation, by means of structured symptom scales, was performed for a cohort of 921 consecutive patients attending an academic sleep center for polysomnography. The Brugmann Fatigue Scale (BFS), an instrument designed for the assessment of rest propensity was used among other scales (ie, Epworth Sleepiness Scale, ESS). According to inclusion and exclusion criteria, 420 men and 376 women were finally included in the study and retained for data analysis. Results: While men and women presented with similar age, BMI, total sleep time and sleep efficiency, men presented with higher levels of respiratory events and more periodic limb movements. Irrespective of diagnosis, women presented with significantly higher levels of sleep-associated complaints on all scales. Comparative stratifications of daytime symptoms, per diagnostic groups (SRBD, Movement Disorders (SRMD) and Insomnia), revealed significant main effects for diagnosis alongside with main effects of biological sex. Associations between common markers of disease severity for SRBD or SRMD and sleep or rest propensity, respectively, only showed significant correlation between periodic limb movements and rest propensity. The strength of association was similarly significant for both sexes. Conclusion: While men displayed more objective impairment on polysomnography (PSG) and lower symptom levels, the opposite was true in women. However, both men and women present with statistically significant associations between SRMD severity (PLMS index) and physical fatigue.

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Section: Discussionsupporting

confidence: 85%

Section: Discussionmentioning

confidence: 55%

<p>Sex-Related Differences in Sleep-Related PSG Parameters and Daytime Complaints in a Clinical Population</p>

Eycken¹,

Neu²,

Newell³

et al. 2020

NSS

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“…Polysomnography data showed that participants in the Sleep group slept on average for 465 min ( Table 1 provides sleep parameters), and that sleep architecture was comparable to that of healthy individuals examined in other studies from our laboratory as well as other laboratories (25,26). Participants in the Wake group were under constant supervision by the experimenter to ensure that they did not fall asleep during the sleep deprivation period between 23:00 and 7:00 h. Actigraphy data confirmed that none of the participants slept during the day after the sleep deprivation night, except for one participant who might have fallen asleep for approximately 90 min while watching TV in the afternoon of this day.…”

Section: Significancesupporting

confidence: 59%

Human sleep consolidates allergic responses conditioned to the environmental context of an allergen exposure

Besedovsky

Benischke

Fischer

et al. 2020

Proc. Natl. Acad. Sci. U.S.A.

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Allergies are highly prevalent, and allergic responses can be triggered even in the absence of allergens due to Pavlovian conditioning to a specific cue. Here we show in humans suffering from allergic rhinitis that merely reencountering the environmental context in which an allergen was administered a week earlier is sufficient to trigger an allergic response—but only if participants had slept after allergen exposure. This context-conditioning effect was entirely absent when participants stayed awake the night after allergen exposure or were tested in a different context. Unlike in context conditioning, cue conditioning (to an odor stimulus) occurred independently of sleep, a differential pattern that is likewise observed for conditioning in the behavioral domain. Our findings provide evidence that allergic responses can be conditioned to contextual information alone, even after only a single-trial conditioning procedure, and that sleep is necessary to consolidate this rapidly acquired maladaptive response. The results unravel a mechanism that could explain part of the strong psychological impact on allergic responses.

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“…Polysomnography is commonly used for sleep quality assessment, therapy, and sleep disorders (Gregorio et al, 2011). There are several limitations to obtain high quality of PSG data, including the first night effect in decreased sleep efficiency due to the unfamiliar environment and lack of comfort brought by the test, the difference in PSG variables by sex and different age groups, the control subjects, research angles and environments of different lab groups, and so on, thus making PSG hard for normalization (Newell et al, 2012;Boulos et al, 2019).…”

Section: Sleep Quality Monitoringmentioning

confidence: 99%

Recent Progress in Sleep Quality Monitoring and Non-drug Sleep Improvement

Chi¹,

Cao²,

Yan

2020

Front. Hum. Neurosci.

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Insomnia is one of the most common health risk factors in the population as well as in clinical practice, which is associated with genes, neuron, environment, behavior, and physiology, etc. This review summarizes the recent progress in sleep quality monitoring and non-drug sleep improvement. The innovation of wearable and effective invention suggests a new approach and have deep implications toward sleep improvement and yet, the health care innovation system is also facing the challenge to foster the progress.

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Normal polysomnography parameters in healthy adults: a systematic review and meta-analysis

Cited by 182 publications

References 22 publications

<p>Sex-Related Differences in Sleep-Related PSG Parameters and Daytime Complaints in a Clinical Population</p>

<p>Sex-Related Differences in Sleep-Related PSG Parameters and Daytime Complaints in a Clinical Population</p>

Human sleep consolidates allergic responses conditioned to the environmental context of an allergen exposure

Recent Progress in Sleep Quality Monitoring and Non-drug Sleep Improvement

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