Polysomnography is a useful test for the diagnosis of sleep-related disorders, mainly for the study of obstructive sleep apnea syndrome. obstructive sleep apnea. However, its main use today is the study of Obstructive Sleep Apnea Syndrome (OSAS), in which decreases in the percentage of oxygen in the blood occur repeatedly throughout the night due to airway obstruction. . During a polysomnography, several types of sensors are used that record biological constants.

The determinations that are most captured are:

  • Brain electrical waves.
  • Blood oxygen level.
  • Heart rate Breathing frequency.
  • Eye movements Leg movements.
  • Body position.
  • Snoring and any other noise you make while sleeping.

With these elements, the doctor will be able to identify the different parts of sleep and its two main components, REM sleep and Non-REM sleep.

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