Sleep Studies
What Is a Sleep Study?
A sleep study also called as a polysomnogram, is a test that is used to diagnose sleep related disorders. It is an overnight study in which various parameters are recorded while the child is sleeping
Why is this study performed?
This study is performed when the child has a disturbed sleep and complains of any of the following symptoms:
- Obstructive sleep apnea
- Periodic limb movement disorder
- Narcolepsy
- Hypersomnia or excessive daytime sleepiness
Daytime study could also be performed to diagnose narcolepsy and hypersomnia.
What are the preparations required for sleep study?
- Please ensure that your child has done the following things:
- He /she should have a good rest /sleep on the previous night
- Regular medications if any could be continued
- Do not give any caffeinated drinks to the child such as coffee, tea, soda, chocolate
- The child should not take the afternoon nap on the day of the study
- The child should be brought to the sleep lab / centre at least 2 hours prior to the usual bedtime so that he / she can get familiar with the surroundings.
How is the sleep study performed?
The sleep technician will do the following: Sensors are placed at various areas, such as on the head, chin, and legs, and around the eyes An elastic belt is placed around the child’s chest and stomach to measure breathing The different sensors are connected to a computer to provide information during sleep A microphone is placed near the child’s nose to record snoring if present The baby is monitored for the entire duration of the sleep study in an adjacent room by a technician via a camera.
During a sleep study the following parameters are monitored and recorded:
- eye movements
- breathing patterns
- body movements and sleep positions
- heart rate
- blood oxygen level or saturation level
- carbon dioxide levels
- snoring and other noises
- brain waves (EEG)
- sleep stages
The technician can disconnect the sensors and other devices in case the child needs to use the bathroom during the night.
Can the parents stay with the child during this study?
One parent or guardian can stay overnight with the child during the duration of the study.
How long does it take for the study?
It is an overnight study.
When do the results come?
Usually, he reporting is done in a day or two after checking all the parameters.