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Normative values of polysomnographic parameters in childhood and adolescence: arousal events
Sabine Scholle1, Alfred Wiater, Hans Christoph Scholle
1Zentrum für Schlaf- und Beatmungsmedizin, Robert-Koch-Krankenhaus Apolda GmbH, Apolda, Germany. sl@rkk-apolda.de
Insights
This study found that sleep arousal events decrease with age and maturity in children. Gender differences were observed in specific arousal types, highlighting the need for age- and maturity-specific diagnostic criteria.
Area of Science:
- Pediatric Sleep Medicine
- Neurophysiology
- Child Development
Background:
- Sleep arousals are critical indicators of sleep quality and disturbances.
- Current diagnostic criteria for sleep arousals are based on adult data, potentially lacking pediatric specificity.
- Understanding age, gender, and maturity-related variations in pediatric sleep arousals is essential for accurate diagnosis.
Purpose of the Study:
- To establish normative values for sleep arousal events in healthy children based on age, gender, and maturity.
- To investigate the influence of age, gender, and Tanner stage on various types of sleep arousals.
- To provide data that can aid in the diagnosis of pediatric sleep disturbances.
Main Methods:
- Polysomnography was conducted on 209 healthy German children aged 1-18 years.
- Participants were grouped by gender, age, and Tanner stage for analysis.
- Arousal events were quantified using American Academy of Sleep Medicine criteria.
Main Results:
- Sleep arousal indices, including EEG arousals and respiratory arousals, significantly decreased with increasing age and Tanner stage.
- Spontaneous arousals did not show a significant association with age.
- Gender differences were noted in specific arousal types (arousals ≥3 s and total leg movements).
Conclusions:
- The study provides age- and maturity-specific normative data for pediatric sleep arousals.
- These findings can assist in evaluating deviations from normal sleep arousal patterns in children.
- Further research and discussion are warranted regarding the application of American Academy of Sleep Medicine arousal rules in pediatric populations.
Objective:
This study focused on differences in arousals during sleep, using the arousal rules of the American Academy of Sleep Medicine, by gender, age, and maturity in healthy children.
Methods:
One-night polysomnography was performed on 209 healthy German children (age 1-18 years) at their habitual bedtimes in 16 laboratories. Subjects were grouped by gender (112 females, 97 males), age, and Tanner stage.
Results:
Normative values of arousal events in sleep are presented, including indexes of spontaneous and respiratory arousals, total electroencephalogram (EEG) arousals, phasic increase in submental electromyogram (EMG) in stage R, and leg movements. With increasing age, a decrease was seen in: EEG arousal index ≥1-2.9 s, EEG arousal index ≥3 s, index of total EEG arousals, index of respiratory arousals, chin EMG enhancement in stage R ≥1-2.9 and ≥3 s, index of total leg movements, and leg movements with EEG arousals (p<0.05). Only spontaneous arousals showed no association with age. There was a significant negative correlation between Tanner stage and arousals ≥1-2.9 s, respiratory arousals, leg movements, and leg movements with arousals (p<0.05). Only arousals ≥3 s and total leg movements showed gender differences (p<0.05).
Conclusions:
For the diagnosis of pediatric sleep disturbances, the given arousal data enable estimation of the degree of deviation from normal findings for age and maturity. There is need for further research on, and further discussion of, the arousal rules of the American Academy of Sleep Medicine.
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