Colin Snow
Sleep studies are often recommended for children who may have sleep problems such as sleep apnea, restless leg syndrome, or narcolepsy. The process involves placing sensors and electrodes on the child's body and head to monitor brain activity, breathing, and movements during sleep. The child spends the night in a lab or sleep center, and a sleep technician monitors the child's sleep from another room. The test is non-invasive and painless, but it requires the child's cooperation. Parents can usually stay overnight and are encouraged to bring items to make their child comfortable.
| Characteristics | Values |
|---|---|
| Purpose | To diagnose sleep problems, such as sleep apnea, restless leg syndrome, or narcolepsy. |
| Participants | Children of all ages, from infants to teenagers. |
| Location | A sleep lab or hospital. |
| Timing | Overnight, with a daytime study occasionally required after. |
| Preparation | Parents should bring their child's medications, formula, special foods, medical equipment, and personal items. The child should have clean, dry hair with no products and should be kept awake and active during the day to maximize sleep during the study. |
| Setup | Electrodes and sensors are placed on the child's body to measure brain activity, breathing, movements, heart rate, muscle tone, eye movements, and sleep stages. This includes an elastic belt around the chest and stomach and a cannula at the nose. |
| Parent Involvement | One parent or guardian can usually stay overnight and is encouraged to bring items to make their child comfortable. |
| Results | A doctor trained in sleep medicine will review the results, which can take up to 4 weeks, and discuss follow-up treatments or tests. |
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What You'll Learn
Parents can stay overnight
Parents must bring all personal care items for their child, including formula, diapers/pull-ups, bedtime snacks, and all medications. If the child uses medical equipment, parents should bring the device and all supplies. The child may sleep in whatever they are comfortable in, but one-piece footed pajamas are not allowed.
Parents and children can use personal electronic devices such as cell phones and tablets while the sensors are being put in place, but all electronic devices must be turned off during the actual sleep study. Medically necessary electronic devices, such as feeding pumps, are permitted.
It is recommended that parents bring their child's favorite toy, stuffed animal, blanket, or pillow to help the child feel more comfortable. Parents can also bring snacks and special treats to help their child through the equipment setup and make the overnight stay seem more enjoyable.
The sleep technical staff will discuss the child's bedtime routine with the parent to ensure the child goes to bed at the usual time. They will begin setting up the equipment about 30 to 60 minutes before bedtime. This setup includes placing sensors on the child's head, chin, and legs, and around the eyes, as well as an elastic belt around the chest and stomach to measure breathing. Stick-on electrodes will be placed on the child's face and chest to measure eye movements, heart rate, and muscle tone during sleep.
The sleep study typically ends by 5:30 a.m., but it can end earlier or later depending on how well the child slept. In the morning, the sleep technician will wake the child and remove all sensors. The test is usually completed in time for the child to go to school.
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Non-invasive tests
A pediatric sleep study is a non-invasive test that electronically records activity in the brain and body during sleep. It is often ordered to find out if a child has problems breathing while asleep, such as sleep apnea, or to diagnose other sleep problems like restless leg syndrome or narcolepsy.
The sleep technical staff will discuss your child's bedtime routine and ask you some questions to ensure your child goes to bed at the usual time. They will begin setting up the equipment about 30 to 60 minutes before bedtime. This set-up includes the following non-invasive procedures:
- A bandage-like sensor is placed on the toe or finger to measure your child's oxygen levels.
- A cannula is placed at the nose to measure the carbon dioxide in your child's exhaled air.
- Elastic or cloth belts are placed on the child's chest and stomach, usually over their pajamas, to measure breathing.
- Stick-on electrodes are placed on the face and chest to measure eye movements, heart rate, and muscle tone during sleep.
- Additional electrodes are applied with a washable paste to the scalp to measure the different stages of sleep.
- A microphone records sounds, and a camera may also be used to record your child's sleep.
The set-up process is painless but does require about an hour of cooperation from the child. The child may sleep in whatever they are comfortable wearing to bed, except for one-piece footed pajamas. Parents are encouraged to bring their child's favorite blanket, pillow, or stuffed animal to make them feel more comfortable.
The sleep study ends around 5:30 or 6:30 a.m., depending on the sleep center, and the child can go home after the sensors are removed.
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Sleep problems and causes
Sleep problems are very common in childhood. A sleep study, also called a polysomnogram, is a non-invasive test that helps doctors diagnose sleep problems and their causes. It electronically records activity in the brain and body during sleep. The test is conducted in a hospital or sleep centre, and the child spends the night there. The sleep technician will be present all night, monitoring the child's sleep from another room.
The sleep study involves placing sensors on the child's body to record a variety of body functions while they sleep. These sensors are placed on different areas of the body, such as the head, chin, legs, and around the eyes. An elastic belt is also placed around the child's chest and stomach to measure breathing. Stick-on electrodes are placed on the face and chest to measure eye movements, heart rate, and muscle tone during sleep. Additional electrodes are applied to the scalp with a washable paste to measure sleep stages. A cannula is placed at the nose to measure exhaled air (carbon dioxide). The sensors are connected to a computer, and a microphone and camera may also be used to record the child's sleep. The set-up process is painless but requires about an hour of cooperation from the child.
The sleep study can help diagnose various sleep disorders, including obstructive sleep apnea (OSA), which is often caused by enlarged tonsils or adenoids. OSA causes the child to periodically stop breathing while asleep, leading to disrupted sleep and potential health risks. Restless leg syndrome is another condition that can be diagnosed through a sleep study, and low iron levels are often associated with this syndrome. Narcolepsy and hypersomnia are other sleep disorders that may be diagnosed through a daytime study.
The treatment options for sleep disorders vary depending on the diagnosis. For example, if the sleep study indicates obstructive sleep apnea related to enlarged tonsils, a referral to an ear, nose, and throat surgeon may be provided to discuss the possible removal of the tonsils and/or adenoids. In some cases, the use of a CPAP or BiPAP machine may be recommended to aid in breathing during sleep. For restless leg syndrome, a blood test to measure iron levels may be followed by a daily iron supplement for a few months to correct any deficiencies.
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Sensors and electrodes
During a pediatric sleep study, various sensors and electrodes are placed on the child's body to monitor their sleep patterns and body functions. The setup usually begins 30 to 60 minutes before bedtime and takes about an hour to complete. The process is painless, but it requires the child's cooperation. The sensors and electrodes are placed on different parts of the body to capture specific data during sleep.
One type of sensor used in pediatric sleep studies is the bandage-like sensor placed on the child's toe or finger to measure oxygen levels. This provides valuable information about the child's breathing and blood oxygen saturation during sleep. Additionally, a cannula is placed at the nose to measure the carbon dioxide in the child's exhaled air.
Stick-on electrodes are placed on the child's face and chest to monitor eye movements, heart rate, and muscle tone during sleep. These electrodes are typically painless to remove and do not break the skin. Additional electrodes are applied to the scalp with a washable paste to record brain activity and measure the different stages of sleep. These electrodes help in understanding the child's sleep patterns and brain function during sleep.
Elastic or cloth belts are also used during pediatric sleep studies. These belts are placed around the child's chest and stomach, usually over their pajamas, to measure breathing patterns and respiratory function. This data helps in identifying any breathing abnormalities or conditions such as sleep apnea, which is characterised by periodic cessation of breathing during sleep.
The sensors and electrodes used in pediatric sleep studies are designed to be as non-invasive as possible, ensuring the child's comfort and safety. They are attached to the skin without causing any discomfort or breaking the skin. The data collected by these sensors and electrodes is transmitted to a computer, providing detailed information about the child's sleep and enabling doctors to diagnose and treat any underlying sleep disorders or medical conditions effectively.
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Sleep study results
The results of a sleep study can provide valuable information about a child's sleep patterns and activities. This includes data on brain activity, breathing, and movements during sleep. The study can also detect conditions such as obstructive sleep apnea (OSA), which is often caused by enlarged tonsils or adenoids in children.
In the case of OSA, the doctor may refer the child to a pediatric ear, nose, and throat surgeon to consider removing the tonsils and/or adenoids. If the tonsils or adenoids are not the cause, the use of a CPAP machine may be recommended. For other conditions, such as restless leg syndrome, further tests like blood tests to measure iron levels may be suggested.
The sleep study results can also be used to evaluate the effectiveness of any medications the child is currently taking. The physician will decide whether to continue or discontinue the medication based on its impact on the child's sleep quality and the interpretation of the study results.
It is important to note that the results of a sleep study may vary depending on the child's needs and the physician's specific requests. The sleep study is just one part of the overall evaluation process, and the interpretation of the results will be done in conjunction with other medical information.
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Frequently asked questions
A pediatric sleep study is a non-invasive test that records a child's brain activity, breathing and movements during sleep.
Pediatric sleep studies are often used to diagnose sleep disorders such as sleep apnea, restless leg syndrome, hypersomnia, or narcolepsy.
During the study, about 30 small electrodes are placed on the child's head, face, chest, toe or finger to record their sleep activities. The set-up process is painless but requires the child's cooperation.
The study takes place in a hospital or sleep center. The sleeping area is made as comfortable as possible for the child, and parents can sleep in a bed alongside them.
The study usually ends by 5:30 or 6:30 a.m. the next day. Results are typically ready within 3 to 4 weeks.
