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Rhythmic movement disorder in children
1Departments of Pediatrics and Neurology, University of Michigan, Ann Arbor, Michigan, USA. thoban@umich.edu
Insights
Rhythmic movement disorder (RMD) in children involves repetitive motions during sleep. While often transient in infants, persistent RMD may require prompt recognition and treatment to prevent injury or misdiagnosis.
Area of Science:
- Pediatric Neurology
- Sleep Medicine
- Childhood Parasomnias
Background:
- Rhythmic movement disorder (RMD) is a parasomnia involving repetitive movements of the head, trunk, or limbs during sleep onset or sustained sleep.
- While typically transient and self-limiting in infants and toddlers, RMD can persist and become problematic.
Purpose of the Study:
- To review the assessment and treatment of RMD in children.
- To examine the clinical manifestations, epidemiology, natural history, diagnostic methods, and treatment options for RMD.
Main Methods:
- Review of clinical manifestations, epidemiology, and natural history of RMD.
- Discussion of diagnostic tools including polysomnography and electroencephalography.
- Examination of potential causes and available treatments for RMD.
Main Results:
- RMD presents with repetitive movements during sleep transitions or sustained sleep.
- The condition can cause injury or mimic nocturnal seizures, necessitating prompt clinical attention.
- While often transient, persistent RMD may benefit from targeted interventions.
Conclusions:
- Accurate recognition and management of RMD in children are crucial.
- A comprehensive approach involving diagnostic testing and therapeutic strategies is essential for persistent cases.
- Understanding the spectrum of RMD aids in appropriate clinical care.
Abstract:
How should sleep-related rhythmic movements in children be assessed and treated? Rhythmic movement disorder (RMD) represents an unusual variety of childhood parasomnia characterized by repetitive motion of the head, trunk, or extremities, which usually occurs during the transition from wakefulness to sleep or arises during sustained sleep. Although the condition most often affects infants and toddlers in a transient and self-limited fashion, the condition occasionally persists in a problematic fashion, which may nevertheless be amenable to treatment. Since RMD may occasionally cause injury or resemble nocturnal seizure, prompt recognition, and appropriate management on the part of the clinician is essential. This article will examine the spectrum of RMD in children, including their common clinical manifestations; data regarding their epidemiology and natural history; the role of polysomnography, electroencephalography; and other diagnostic testing. Potential causes of the condition and available methods of treatment are also examined.