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A Case of Childhood Sleep-Related Rhythmic Movement Disorder

A Case of Childhood Sleep-Related Rhythmic Movement Disorder Tae Yeon Kim, M.D., Hyun Hee Lee, M.D., Sung Ku Kim, M.D., Kon Hee Lee, M.D. Department of Pediatrics, Kangnam Sacred Heart Hospital, School of Medicine Hallym University Sleep-related rhythmic movement disorder (SRMD) is defined by uniformed, repetitive movements, which occurs from onset of sleep to light sleep and sometimes during deep sleep. We experienced a 21 month-old girl complained of the rhythmic movements during sleep. After controlling her circadian rhythm for 45days, her symptoms dramatically improved; there was no more hitting her head or legs on the floor. We considered that rhythmic movement would be related to circadian rhythm without medication.