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Portable Sleep Study Device Versus Polysomnography: A Meta-analysis.

Joshua L Cagle1, Benjamin D Young1, Michael C Shih1

  • 1Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina, USA.

Otolaryngology--Head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
|March 20, 2023
PubMed
Summary
This summary is machine-generated.

Portable sleep study devices (PSSDs) show strong correlations with polysomnography (PSG) for key sleep apnea metrics. These PSSDs offer a promising, cost-effective tool for screening obstructive sleep apnea (OSA).

Keywords:
WatchPATevidence-based medicineobstructive sleep apneapolysomnography

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Area of Science:

  • Sleep Medicine
  • Respiratory Physiology
  • Medical Device Technology

Background:

  • Obstructive sleep apnea (OSA) diagnosis relies heavily on polysomnography (PSG), a resource-intensive method.
  • Portable sleep study devices (PSSDs) offer a potential alternative for OSA assessment.
  • Accurate comparison of PSSD-measured respiratory indices against PSG is crucial for clinical validation.

Approach:

  • A systematic review and meta-analysis of studies comparing PSSD and PSG simultaneously monitoring.
  • Included 24 studies with 1644 patients, analyzing apnea-hypopnea index (AHI), oxygen desaturation index (ODI), respiratory disturbance index (RDI), oxygen saturation (O2 sat), and lowest oxyhemoglobin saturation (LSAT).
  • Employed meta-correlations and meta-regressions to assess the agreement between PSSD and PSG measurements.

Key Points:

  • Strong meta-correlations were found between PSSD and PSG for AHI (r=0.888), ODI (r=0.942), RDI (r=0.832), O2 sat (r=0.858), and LSAT (r=0.930).
  • Meta-regressions confirmed significant predictive correlations for AHI, ODI, RDI, and LSAT, indicating robust agreement.
  • Oxygen saturation (O2 sat) showed a non-significant correlation in meta-regression analysis (r=0.31).

Conclusions:

  • Respiratory indices measured by PSSDs demonstrate strong correlations with PSG findings.
  • Meta-regression results further support the reliability of PSSD measurements for key respiratory indices.
  • PSSDs represent a potentially valuable, cost- and time-saving tool for obstructive sleep apnea screening.