A boy infant with sleep related rhythmic movement disorder showing arm banging

Jun Kohyama1, Tomoyuki Takano2

  • 1Department of Pediatrics, Tokyo Bay Urayasu Ichikawa Medical Center, Toudaijima 3-4-32, Urayasu 279-0001, Chiba, Japan.

Insights

This case study presents a young boy with sleep-related rhythmic movement disorder characterized by nightly arm banging. The condition persisted from 7 months to 57 months of age, with limited response to clonazepam.

Area of Science:

  • Neurology
  • Sleep Medicine
  • Pediatrics

Background:

  • Sleep-related rhythmic movement disorder (SRRMD) encompasses repetitive, involuntary movements during sleep.
  • Arm banging as a manifestation of SRRMD is rare, particularly in infants.

Observation:

  • A male infant presented with daily arm banging on his face starting at 7 months of age.
  • Video-electroencephalographic (EEG) recording at 23 months documented the persistent nocturnal behavior.

Findings:

  • The patient exhibited continuous arm banging from 7 to 57 months of age, with no full remission.
  • Clonazepam treatment showed minimal efficacy in reducing the intensity and frequency of the movements.

Implications:

  • This case represents potentially the youngest documented instance of SRRMD with arm banging.
  • The findings highlight the need for further research into the specific phenotype and management of arm banging SRRMD in pediatric populations.
Abstract

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