Sleep-related movement disorders in children: recent updates
Melissa Cole1,2, Narong Simakajornboon3,4
1Sleep Center, Division of Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave, MLC 7041, Cincinnati, OH, USA.
Insights
Pediatric sleep-related movement disorders (SRMDs), including restless legs syndrome (RLS) and periodic limb movement disorder (PLMD), are common but underrecognized. Early diagnosis and iron therapy are key for managing these conditions in children.
Area of Science:
- Pediatric Sleep Medicine
- Neurology
- Movement Disorders
Background:
- Sleep-related movement disorders (SRMDs), including restless legs syndrome (RLS), periodic limb movement disorder (PLMD), and restless sleep disorder (RSD), are prevalent in pediatric populations.
- These conditions are often underrecognized by healthcare professionals.
- Recent literature highlights increasing focus on RLS, PLMD, and the newly described RSD.
Purpose of the Study:
- To review and provide recent updates on the pathophysiology, clinical manifestations, diagnostic criteria, and management of common SRMDs in children.
- To emphasize the importance of early diagnosis and appropriate treatment strategies.
Main Methods:
- Comprehensive literature search of English-language peer-reviewed publications.
- Databases searched include PubMed and SCOPUS.
- Included systematic reviews and relevant publications on RLS, PLMD, and RSD.
Main Results:
- SRMDs are common in children and adolescents but frequently underdiagnosed.
- Key pathophysiologies include genetics, dopaminergic dysfunction, and iron deficiency; low iron stores are implicated in both RLS and RSD.
- Iron therapy is effective; while some medications show promise for RLS and PLMD, data in children remain limited.
Conclusions:
- This review synthesizes current knowledge on pediatric RLS, PLMD, and RSD, covering diagnosis and management.
- Pediatricians must recognize SRMD presentations for timely diagnosis.
- Further research is needed on RSD pathogenesis, long-term effects, and pharmacologic treatments in children.
Background:
Sleep-related movement disorders (SRMDs), such as restless legs syndrome (RLS) and periodic limb movement disorder (PLMD), are common in pediatric sleep practice. There is increasing literature on RLS, PLMD, and a newly described sleep disorder called "restless sleep disorder (RSD)". We aimed to review and provide recent updates on SRMDs.
Data Sources:
A comprehensive search for relevant English-language peer-reviewed publications focused on three common SRMDs, namely, RLS, PLMD and RSD, in a variety of indices in PubMed and SCOPUS. Both relevant databases and systematic reviews are included.
Results:
SRMDs, especially RLS and PLMD, are common in children and adolescents. However, they are underrecognized. Genetics, abnormal dopaminergic functions, and iron deficiency are the main pathophysiologies of RLS and PLMD. RLS and RSD may share common pathophysiologic mechanisms, as evidenced by low iron stores in both conditions. The diagnoses of RLS, PLMD, and RSD require specific clinical criteria and polysomnographic features. Several comorbid conditions have been associated with RLS, PLMD, and RSD. Iron therapy has been shown to be effective for treating RLS, PLMD, and RSD. There is increasing evidence on the effectiveness of specific medications in children with RLS and PLMD, but the data are still limited.
Conclusions:
This review summarizes the pathophysiology, clinical manifestations, diagnostic criteria, and management of RLS, PLMD, and RSD in children based on relevant and recent literature. It is important for pediatricians to recognize the clinical presentation of RLS, PLMD, and RSD to facilitate early diagnosis. Further studies are needed to examine the pathogenesis, long-term consequences, and pharmacologic therapy of RSD in children.
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