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Sleep architecture and REM sleep measures in prepubertal children with attention deficit disorder with hyperactivity
Insights
Methylphenidate treatment in children with attention deficit disorder with hyperactivity (ADDH) delayed sleep onset and lengthened sleep. ADDH children showed decreased rapid eye movement (REM) sleep activity at baseline.
Area of Science:
- Pediatric Neurology
- Sleep Medicine
- Neurodevelopmental Disorders
Background:
- Attention Deficit Disorder with Hyperactivity (ADDH) is a neurodevelopmental disorder affecting children.
- Sleep disturbances are frequently reported in children with ADDH, but objective polysomnographic data are limited.
- Previous studies suggest potential alterations in sleep architecture in ADDH populations.
Purpose of the Study:
- To investigate sleep architecture in prepubertal children diagnosed with ADDH using polysomnography.
- To assess the effects of methylphenidate treatment on sleep patterns in children with ADDH.
Main Methods:
- A 2-night polysomnographic study was conducted on 9 prepubertal children with ADDH and 11 control children.
- Sleep architecture, including rapid eye movement (REM) sleep, was analyzed at baseline.
- Seven ADDH children were restudied after 6 months of continuous methylphenidate therapy.
Main Results:
- Children with ADDH showed decreased REM sleep activity at baseline compared to controls.
- Methylphenidate therapy was associated with delayed sleep onset and lengthened total sleep time.
- Significant changes in specific REM sleep variables were observed following methylphenidate treatment.
Conclusions:
- While baseline polysomnography revealed minimal sleep architecture abnormalities in ADDH children, REM sleep was reduced.
- Methylphenidate treatment significantly alters sleep patterns, including delayed sleep onset and increased sleep duration.
- Further research is warranted to understand the clinical implications of these methylphenidate-induced sleep changes in ADDH.
Abstract:
A 2-night polysomnographic study of 9 rigorously assessed prepubertal children who fit Diagnostic Statistical Manual-III criteria for attention deficit disorder with hyperactivity (ADDH) and a contrast group of 11 control children is reported. Despite the fact that 57% of the ADDH group were reported to experience restless sleep on structured parental rating forms, they did not show any sleep architecture abnormalities on polysomnographic recordings when compared with the normals at baseline other than decreased rapid eye movement (REM) activity. Seven of the ADDH boys were restudied after 6 months of continuous methylphenidate therapy (mean daily dose of 34.4 +/- 14.0 mg or 1.4 +/- 0.7 mg/kg). Across and within (pre-post) group comparisons showed that methylphenidate therapy was associated with delayed sleep onset, lengthened sleep, and changes in certain REM sleep variables.