[The relationship between attention deficit hyperactivity disorder and sleep-alertness problems]
1Sleep Laboratory, Rambam Medical Center (Meyer Children's Hospital) and Technion--Israel Institute of Technology, Haifa, Israel.
Insights
Children with Attention Deficit Hyperactivity Disorder (ADHD) often experience primary sleep disorders and daytime sleepiness. Addressing these treatable sleep issues, like Obstructive Sleep Apnea (OSA), is crucial for managing ADHD symptoms effectively.
Area of Science:
- Neuroscience
- Pediatrics
- Sleep Medicine
Background:
- Attention Deficit Hyperactivity Disorder (ADHD) is frequently associated with sleep disturbances.
- Parental reports indicate reduced sleep efficiency and increased fragmentation in children with ADHD.
- Objective sleep studies sometimes reveal longer sleep durations, with a hypothesis linking daytime somnolence to ADHD's inattentive symptoms.
Purpose of the Study:
- To investigate the prevalence of primary sleep disorders and objective daytime somnolence in children diagnosed with ADHD.
- To explore the potential impact of treatable sleep disorders on ADHD symptomatology and treatment response.
Main Methods:
- The study involved objective measurements of sleep patterns and daytime somnolence in a cohort of children with ADHD.
- Assessment included screening for primary sleep disorders such as Obstructive Sleep Apnea (OSA) and Periodic Limb Movements Disorder in Sleep (PLMD).
Main Results:
- A high prevalence of primary sleep disorders and objective daytime somnolence was identified in children with ADHD.
- The findings suggest a potential link between these sleep issues and the effectiveness of stimulant medications like Ritalin.
Conclusions:
- Primary sleep disorders and daytime somnolence are common in children with ADHD.
- Investigating and treating conditions like Obstructive Sleep Apnea (OSA) and Periodic Limb Movements Disorder in Sleep (PLMD) should be an integral part of ADHD assessment and management.
Abstract:
Several studies have reported a relationship between Attention Deficit Hyperactivity Disorder (ADHD) and sleep problems. Parents of children with ADHD report on decreased nocturnal sleep efficiency and sleep fragmentation compared to controls. On the other hand, objective measurements often show that these children sleep longer, and there is even a theory that suggests that daytime somnolence is the primary cause of the inattention problems seen in the disorder. Experimental sleep restriction, which leads to daytime somnolence, has been shown to be associated with ADHD-like behavior and poor cognitive achievements. In a study that we have recently performed, we found that children with ADHD had high prevalence of primary sleep disorders and objective daytime somnolence. This finding can explain why Ritalin, which is a stimulant medication, improves symptoms in these children. Sleep problems, primarily treatable such as Obstructive Sleep Apnea (OSA) or Periodic Limb Movements Disorder in Sleep (PLMD), should be investigated in the assessment of these children.
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