JOURNAL ARTICLE
RESEARCH SUPPORT, N.I.H., EXTRAMURAL
RESEARCH SUPPORT, NON-U.S. GOV'T
REVIEW
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Behavior and sleep disturbance in Smith-Magenis syndrome.

PURPOSE OF REVIEW: To provide an update of the most recent studies on Smith-Magenis syndrome (SMS) with a focus on the unique pattern of behavioral and sleep disturbances associated with the condition.

RECENT FINDINGS: The recent literature on SMS has focused on the characteristic severe behavioral and sleep disturbances. A better understanding of the underlying pathophysiological mechanisms and common clinical course has helped further characterize SMS, while much is left to be discovered in regard to effective treatment/management.

SUMMARY: SMS is a difficult to manage genetic condition defined by pervasive and progressive behavioral and sleep disturbances with a unique pattern that can often be easily discerned from other neurodevelopmental disorders. Common behavioral features include maladaptive/self-injurious, aggressive, stereotypic, and the newly appreciated food seeking behaviors associated with SMS. In addition, there is a sleep disturbance defined by an altered circadian rhythm with frequent nighttime waking and daytime sleepiness, causing patients and families significant distress. Small studies have suggested some treatment/management approaches to the behavioral and sleep disturbances, however, much remains to be discovered.

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