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Monitoring mandibular movements to detect Cheyne-Stokes Breathing.

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Summary
This summary is machine-generated.

Cheyne Stokes breathing (CSB) in patients with sleep disordered breathing can be accurately detected using mandibular movements (MM). This method shows high concordance with polysomnography, offering a simpler diagnostic approach.

Keywords:
Central sleep apnea syndromeCheyne Stokes breathingPolysomnographySleep mandibular movements

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Area of Science:

  • Sleep Medicine
  • Respiratory Physiology
  • Biomedical Engineering

Background:

  • Mandibular movements (MM) during sleep can indicate respiratory effort and arousals.
  • Periodic large-amplitude MM (LPM) and sharp large-amplitude MM (SPM) are associated with increased respiratory effort and cortical arousals.
  • Cheyne Stokes breathing (CSB) is characterized by periodic abnormal breathing patterns.

Purpose of the Study:

  • To prospectively evaluate the concordance between CSB detection using periodic MM patterns and polysomnography (PSG).
  • To determine if MM patterns can reliably identify CSB in patients with suspected sleep disordered breathing (SDB).

Main Methods:

  • Acquired MM signals using magnetometry in 573 consecutive patients undergoing PSG for suspected SDB.
  • Manually scored MM signals while blinded to PSG data.
  • Developed and tested two classification models to evaluate concordance between CSB (identified by PSG) and the presence of LPM or SPM, using randomly divided training and validation sets.

Main Results:

  • CSB was identified in 22 out of 573 patients (3.8%) by PSG.
  • Classification of CSB based on LPM and SPM demonstrated high accuracy (Balanced-accuracy = 0.922).
  • Logistic models showed significant odds ratios for CSB in the presence of SPM (172.43) or LPM (186.79), indicating a strong association (p < 0.001).

Conclusions:

  • Cheyne Stokes breathing (CSB) in patients with sleep disordered breathing can be accurately identified using a simple magnetometer device that records mandibular movements.
  • MM analysis offers a promising, potentially less invasive method for CSB detection compared to standard PSG.