Speakers: Mujahid Mahmood, MD, Neurologist and Sleep Specialist, Kaiser South San Francisco and Andrew Wen, MD, Pediatric Pulmonologist, Kaiser Oakland
This videoconference can be viewed in its entirety here:
http://insidekp.kp.org/ncal/tpmgphysicianed/media/video/pedi_sleepapnea/index.html
The American Academy of Pediatrics recommends screening for snoring and sleep apnea at all well child visits. Recently, there guidelines for sleep apnea were published in Pediatrics.
Key points highlighted in the videoconference include:
- Up to 4% of all children may have sleep apnea.
- Sleep apnea can lead to many problems including neurocognitive delays, behavior and learning problems, enuresis, attention problems and fatigue.
- A thorough history should be taken at every well child visit. A questionnaire guiding the pediatrician's history, written by Dr. Myrza Perez, Pediatric Pulmonology, Kaiser Roseville and was provided in the handout for this videoconference.
- Pediatricians should ask if about the frequency of a child's snoring, if enuresis is an issue, restless sleeping, and interruptions or gasps in the rhythmic breathing cycle. In addition, the pediatrician should inquire about daytime symptoms such as fatigue, irritability and learning and behavior problems.
- A polysomnogram (PSG) is not always needed in an otherwise healthy child with overt symptoms of obstructive sleep apnea (OSA).
- Parents can videotape a child during sleep attempting to capture moments of apnea in their child. This can be diagnostic and these patients may be referred directly to an otolaryngologist.
- 70 to 80 % of patients without pre-existing risk factors will be cured of OSA with an adenotonsillectomy.
- PSG are mostly performed at Kaiser San Jose and Kaiser Sacramento.
- PSG is helpful in patients where the diagnosis of OSA is unclear, for patients with high risk factors, for patients who have contraindications to surgery, or for patients who have undergone an adenotonsillectomy yet have persisting symptoms of OSA.
- A PSG study is videotaped while air flow, oxygen saturation, chest and abdominal movement are measured. An EEG and EKG are also performed and a specialized technician is in attendance. If OSA is identified by this study, a referral to an ENT specialist will be made by the sleep study department.
- All high risk patients with suspected OSA should be referred to a center where there is a pediatric otolaryngologist and pediatric anesthesiologists.
High risk factors include:
- Children under 4 years of age
- BMI > 95th % tile
- Children with Neuromuscular disorders
- Down Syndrome
- Achondroplasia
- Chronic lung disease
- Pulmonary Hypertension
- Central apnea
- Craniofacial abnormalities
A home ambulatory sleep study that measures air flow, hear rate, respiratory rate, oxygen saturation, and chest and abdomen movement is available from most Kaiser sleep labs and may be considered.
Ambulatory home sleep studies are helpful if the results are abnormal, but offer no information if the results are negative.
If a child undergoing a PSG is found to have overt OSA, the sleep lab will facilitate the referral to an ENT specialist.
If this PSG shows OSA, often times CPAP will be the treatment of choice. This benefit is covered only for those Kaiser members with DME coverage.
Commentary by Luke Schloegel, MD, Pediatric Head & Neck Surgery
Kaiser Permanente Oakland
Diagnosis and Management of Childhood Obstructive Sleep Apnea
When evaluating a child with snoring, this revised guideline by the AAP recommends a thorough investigation to ensure that children with obstructive sleep apnea (OSA) are identified. No longer can we be sure that a child with OSA is being identified if we only ask about pauses/gasps in breathing at night or daytime tiredness. Further understanding of the effects of sleep apnea in children has shown that OSA can have a wide-range of manifestations such as enuresis, attention-deficit hyperactivity disorder, poor school performance, poor quality of life, behavioral problems, and growth failure. It is important to link these problems to OSA in order to enhance diagnostic accuracy for OSA but also provide appropriate treatment for these behavioral and neurocognitive problems.
If sleep disordered breathing is suspected, the AAP guideline recommends obtaining a polysomnogram (PSG) as the most accurate way to diagnose sleep apnea. I agree that overnight PSG is the most reliable and objective test to measure the presence and severity of OSA. However, I do not think that PSG is necessary in otherwise healthy children with clinical evidence of OSA. In these cases, a referral for adenotonsillectomy can be made without a sleep study. PSG is helpful in patients when the clinical diagnosis is indeterminate, when there is a complex medical history making surgery contraindicated, or if there is a high likelihood that the child’s sleep apnea will not resolve following adenotonsillectomy.
A polysomnogram is also useful in the postoperative period for reassessment. Children in whom OSA fails to resolve after adenotonsillectomy should be managed with CPAP. In select patients, additional surgical procedures can be helpful such as lingual tonsillectomy, turbinate coblation, supraglottoplasty and maxillary advancement.
In otherwise healthy children of normal weight, adenotonsillectomy will resolve OSA in 70 to 80% of patients. In obese children, children with craniofacial and neuromuscular abnormalities, and/or severe OSA, the resolution of OSA drops significantly to only 10 to 25% after surgery. Therefore, it is important to counsel families about realistic expectations concerning adenotonsillectomy. This group of patients should be managed by a pediatric ENT specialist and pediatric anesthesiologist. All high risk patients should be observed overnight in the hospital for complications after adenotonsillectomy. This guideline along with additional compelling research on pediatric sleep disorders and special educational need remind us of the importance of diagnosis and treatment of sleep apnea in children.
Editor’s Commentary:
Sleep disordered breathing, when left untreated, can result in both short term and long term consequences for children. Short term issues include enuresis, attention problems, learning and behavior problems, and potential neurocognitive delays. Long term problems may include pulmonary hypertension, right ventricular hypertrophy and cor pulmonale. These 2 articles and the videoconference advocate early intervention with a sleep study and adenotonsillectomy as a first-line therapy for patients with OSAS.
Patients under age 4 years or with special risk factors such as obesity, neuromuscular disorders, Down syndrome, achondroplasia, chronic lung disease, pulmonary hypertension, or craniofacial abnormalities should be managed by a pediatric otolaryngology specialist and pediatric anesthesiologist.
Any child who presents with enuresis, headaches, and learning or behavior concerns as primary complaints should have a thorough history looking for signs of snoring and/or OSAS. Certainly, this diagnosis should be ruled out prior to initiating medications for ADHD in any child.