Polysomnography, or a sleep test for children and adults

What is it?

During polysomnography, or a sleep test, different body indicators are diagnosed over a period of 8 hours with the help of sensors placed on the body:

  • electrical activity in the brain (phases of sleep and their alternation are assessed)
  • breathing during sleep (mouth-nose, thorax- and stomach breathing)
  • heart activity
  • heart rate
  • body’s oxygen supply
  • presence and strength of snoring sound
  • changes in posture and movement disorder (muscle tone)

 

Options?

Adult polysomnography, or sleep test, helps to diagnose:

  • Sleep-related breathing disorders, such as sleep apnoea
  • Sleep-related nightly behavioural disorders: sleep terror, sleepwalking, bed-wetting, movement disorder related to REM sleep
  • Sleep-related spasm syndromes
  • Sleep-related movement disorders, such as restless feet syndrome or periodic limbmovement disorder
  • Sleep disorder causing excessive fatigue, such as narcolepsy
  • Insomnia or sleeplessness related to mood swings, depression, eating disorders, etc.
  • Shifts in sleep phases which could be caused by working shifts, taking too many naps, excessive fatigue.
  • With a sleep test, it is possible to determine a link between a patient’s sleep disorder and different heart diseases, hypertension, previous inflammation of the heart muscle or stroke.

Children’s sleep test allows us to:

  • Discern snoring from dangerous sleep-related breathing disorders (sleep apnoea, upper respiratory tract resistance syndrome, irritation caused by sleep-related breathing effort)
  • Evaluate the level of severity of sleep-related breathing disorders
  • Define the essence of a sleep-related breathing disorder if there is a discrepancy between symptoms and risk factors
  • Assess the occurrence of a sleep-related breathing disorder in children with high risk (Down syndrome, face-jaw development disorders)
  • Find children with a high sleep apnoea risk, who have a high probability for complications immediately after surgery and later during the post-operation period
  • To diagnose sleep-related nightly behavioural disorders: sleep terror, sleepwalking, bed-wetting, and movement disorder related to REM sleep
  • To diagnose sleep-related spasm syndromes
  • To diagnose sleep-related movement disorders, such as restless feet syndrome or periodic limb movement disorder
  • To diagnose sleep disorder causing excessive fatigue (e.g. narcolepsy, Kleine-Levin syndrome)
  • To diagnose insomnia or sleeplessness related to mood swings, depression, eating disorders, etc.
  • To diagnose shifts in sleep phases which could be caused by working shifts, taking too many naps, and excessive fatigue

Devices

To perform a polysomnographic test, the sleep centre has: Philips Respironics Alice 6 LdxS diagnostic system.   

Sleep test device – sensors placed on the patient’s body register different parameters and forward the information to the computer via the test device

Carrying out the Sleep Test

For Adults

The date and time of the sleep test shall be booked at the doctor’s appointment. Patients arrive at the sleep centre for the test in the evening, from 17.00. After test formalities, the sleep technologist shall take you to the test room where you have time to make yourself comfortable. We ask that you please shower immediately before attaching the sleep test electrodes. Before falling asleep, electrodes that will not obstruct movement shall be placed onto your face and body. The test shall be performed at your customary bedtime. The sleep technologist shall remove the electrodes from your body in the morning.

For Children

Children’s sleep tests shall be performed in a child-friendly test centre. Preparations for the sleep test shall be playful, considering that children get tired quicker. If necessary, there will be breaks between placing the sensors, during which time the child can rest. A cooperative parent is a great help when preparing the test, helping to explain the objective of these activities to the child. Typically, the preparation for a child’s sleep test lasts 1.5-2 hours.

 

You can find more detailed information on how to prepare for the test from the sleep test checklist.

 

After attaching the sensors, the patient can enjoy a cup of tea, if desired.

Test results and treatment

The doctor shall inform you about the sleep test results during your return visit. The sleep centre administrator shall book you an appointment for this purpose. In addition to test results, the doctor shall introduce you to different treatment options.

Associated services: