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Related Experiment Videos

[Obstructive sleep apnea in shift workers].

Marcin Paciorek1, Krzysztof Byśkiniewicz, Piotr Bielicki

  • 1Katedra i Klinika Chorób Wewnetrznych Pneumonologii i Alergologii AM w Warszawie. mpaciorek@wp.pl

Pneumonologia I Alergologia Polska
|December 21, 2006
PubMed
Summary

Shift workers with obstructive sleep apnea syndrome (OSAS) experience a significant increase in sleep disordered breathing intensity when tested after a night shift. This diurnal testing, compared to standard nocturnal polysomnography (PSG), impacts diagnosis and treatment strategies.

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Area of Science:

  • Sleep Medicine
  • Occupational Health
  • Respiratory Physiology

Background:

  • Obstructive sleep apnea syndrome (OSAS) is prevalent in shift workers.
  • Shift work disrupts circadian rhythms and can exacerbate sleep disorders.
  • Standard nocturnal polysomnography (PSG) may not fully capture sleep-disordered breathing (SDB) intensity in this population.

Purpose of the Study:

  • To compare the intensity of sleep disordered breathing (SDB) using standard nocturnal polysomnography (PSG) versus diurnal PSG after a night shift.
  • To evaluate the impact of night shifts on SDB metrics in shift workers diagnosed with OSAS.

Main Methods:

  • Twenty-five shift workers (24 male, 1 female, mean age 45.4 years, mean BMI 31.9 kg/m²) with OSAS were enrolled.
  • Participants underwent both standard nocturnal PSG and diurnal PSG following a night shift.

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  • Apnea/hypopnea index (AHI) and oxygen desaturation index (ODI) were primary outcome measures.

    • Main Results:

    • The mean apnea/hypopnea index (AHI) was significantly higher during diurnal PSG after a night shift (47.8/h) compared to standard nocturnal PSG (38.0/h) (p<0.05).
    • A non-significant trend towards a higher oxygen desaturation index (ODI) was observed in diurnal PSG (40.4/h) versus nocturnal PSG (31.9/h).

    Conclusions:

    • Diurnal PSG after a night shift reveals a significant increase in SDB intensity (AHI) in shift workers with OSAS compared to nocturnal PSG.
    • These findings suggest that standard nocturnal PSG may underestimate the severity of OSAS in shift workers.
    • The increased AHI observed in diurnal testing could negatively influence the diagnosis and effective treatment of OSAS in this occupational group.