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AMA Manual of Style Committee

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Polysomnography and Sleep Stages.3,18

Chapter:
Nomenclature
Author(s):

Cheryl Iverson,

Stacy Christiansen,

Annette Flanagin,

Phil B. Fontanarosa,

Richard M. Glass,

Brenda Gregoline,

Stephen J. Lurie,

Harriet S. Meyer,

Margaret A. Winker,

Roxanne K. Young

15.11.4 Polysomnography and Sleep Stages.3,18

Polysomnography is the monitoring of various physiologic parameters simultaneously during sleep, including the following:

  • EEG: standard electrodes are used (see 15.11.2, Electroencephalographic Terms)

  • Electro-oculogram (EOG): tracings are obtained from the left eye and right eye

  • Electromyogram (EMG): submental (chin) EMG, leg muscle EMG, eg, left anterior tibialis, right anterior tibialis

  • Respiratory function, eg, oxygen saturation (SaO2), expired CO2, and tidal volume (Vt) (see 15.16, Pulmonary, Respiratory, and Blood Gas Terminology)

  • Electrocardiogram (ECG): see 15.3.1, Cardiology, Electrocardiographic Terms

Sleep stages are as follows19:

rapid-eye movement sleep (REM sleep)

non-rapid eye movement (non-REM) sleep (NREM sleep)

sleep stage 1

sleep stage 2

sleep stage 3

sleep stage 4