Prognosis

Obstructive sleep apnoea (OSA)

While removal of the adenoids and tonsils resolves OSA in 79% to 92% of children, it is less efficacious in obese children, those with Down's syndrome, and children with underlying craniofacial abnormalities.​[91]​[92]​​[134][135] In the general population, one study has shown a recurrence rate of 8.5% 3 years after surgery.[62]

Chronic insomnia disorder

According to a meta-analysis reviewing 52 behavioural treatment studies, 94% of respondents reported improvement with behavioural interventions, with 80% of children treated demonstrating sustained improvement for 3 to 6 months.[110]

Delayed sleep-wake phase disorder

There are very few objective data delineating success rates of the various treatment strategies. Enlisting the co-operation of the patient is critical; without it there is little, if any, chance of success.

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