World journal of pediatrics : WJP · 2024
Sleep-related movement disorders in children: recent updates.
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Cole Melissa, Simakajornboon Narong
Аннотация
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.
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.