This study aims to evaluate the viability of wearable and portable technologies for sleep staging in children and adolescents. The results will be compared with polysomnography, in order to achieve clinical and diagnostic validation. Three domains of devices will be used: movement sensors, wearable EEG band and pulse oximetry. The project will include individuals between the ages of 3 and 18 who reside in São Paulo city and undergo a polysomnography test at the Sleep Laboratory of the Children's Institute of the Hospital das Clínicas of the University of São Paulo.
This study aims to evaluate the viability of the combined use of wearable and portable technologies for sleep staging. The results will be compared with polysomnography, in order to achieve clinical and diagnostic validation. Three domains of devices will be used: * Movement sensors: Devices equipped with movement sensors (such as an accelerometer) able to monitor movement over the using period, converting this information in data related to the sleep-wakefulness cycle. In this category, the reference devices are the actimeters/actigraphs (ACT). Its use is recommended by the American Academy of Sleep Medicine to the diagnosis of insomnia and circadian sleep disorders, and should be used for 3 to 14 consecutive days. Other wearable devices, such as smartwatches, are also used with the same purpose, although not validated for clinical use. * Wearable EEG band: EEG is a mandatory feature for type-1 polysomnography and a requirement for regular sleep staging. The project will utilize a wearable EEG band in combination with actigraphy and a ring oximeter to improve the estimation of sleep stages. This study will test wearable EEG bands with the following minimal specifications: dry EEG electrodes (no need for paste, gel, or other conductors), presented as a headband or stripe, a minimal sampling rate of 500Hz, noise, high and low filters, a battery lasting at least 8 hours, a maximum weight of 200g (including the whole device), and support for Bluetooth connection. * Ring oximeter: The project will utilize a ring oximter to record the overnight blood oxygen levels, heart rates, and body movements.
Study Type
OBSERVATIONAL
Enrollment
48
Combination of ACT+RO+EEG. This is not an intervention, but rather a combination of devices to be tested regarding its diagnostic validity.
Instituto da Criança do Hospital da Clínicas - FMUSP
São Paulo, São Paulo, Brazil
RECRUITINGSleep Latency
Time from the beginning of the polysomnographic record until the first epoch of sleep.
Time frame: Immediately after the polysomnography.
Total sleep time
Total time of epochs staged as sleep.
Time frame: Immediately after the polysomnography.
Sleep efficiency
Percentage of sleep in relation to total record/bed time.
Time frame: Immediately after the polysomnography.
Wake after sleep onset
Total time of epochs staged as "wake" after sleep latency.
Time frame: Immediately after the polysomnography.
Latency to REM sleep
Time from sleep latency until the first epoch of REM sleep.
Time frame: Immediately after the polysomnography.
Total time for each sleep stage
Time corresponding to epochs staged as each of the sleep stages (N1, N2, N3 and REM)
Time frame: Immediately after the polysomnography.
Percentage each sleep stage
Percentage corresponding to epochs staged as each of the sleep stages (N1, N2, N3 and REM), in comparison with total sleep time.
Time frame: Immediately after the polysomnography.
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