Deep learning for sleep analysis on children with sleep-disordered breathing: Automatic detection of mouth breathing

Jóna Elísabet Sturludóttir1,2,3, Sigríður Sigurðardóttir2, Marta Serwatko2,4

  • 1Department of Computer Science, Reykjavik University, Reykjavík, Iceland.

Frontiers in Sleep
|December 22, 2025
PubMed

Insights

Researchers developed a deep learning algorithm to automatically detect mouth breathing in children using polysomnography (PSG) data. This method shows promise for diagnosing sleep-disordered breathing (SDB) and obstructive sleep apnea (OSA) in pediatric patients.

Area of Science:

  • Pediatric Sleep Medicine
  • Artificial Intelligence in Healthcare
  • Biomedical Signal Processing

Background:

  • Sleep-disordered breathing (SDB) in children, including habitual snoring and obstructive sleep apnea (OSA), often involves mouth breathing.
  • Mouth breathing as an SDB indicator in children is frequently overlooked and inconsistently diagnosed.
  • Accurate detection of mouth breathing is crucial for timely SDB diagnosis and management in pediatric populations.

Purpose of the Study:

  • To develop and evaluate a deep learning algorithm for the automatic detection of mouth breathing events in children.
  • To utilize polysomnography (PSG) data, specifically mouth and nasal pressure signals, for identifying mouth breathing.
  • To assess the performance of a convolutional neural network (CNN) model in classifying mouth breathing events.

Main Methods:

  • Polysomnography (PSG) recordings from 20 children (aged 10-13 years) were analyzed.
  • Mouth and nasal pressure signals from PSG were extracted and processed.
  • Convolutional neural networks (CNNs) were employed to identify and classify mouth breathing events.

Main Results:

  • The deep learning model achieved 93.5% accuracy and 97.8% precision on validation data.
  • The model demonstrated an 89% true positive rate and a 2% false positive rate.
  • Performance decreased on a secondary dataset, suggesting the need for larger training data.

Conclusions:

  • Deep neural networks show significant potential for analyzing and classifying biological signals in sleep studies.
  • Machine learning offers a valuable tool for enhancing sleep analysis and SDB diagnosis in children.
  • Further development with larger datasets is recommended to improve model generalizability.
Abstract

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