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Essential myoclonus: report of four cases
1Department of Pediatrics, National Taiwan University Hospital, Taipei, R.O.C.
Zhonghua Minguo Xiao Er Ke Yi Xue Hui Za Zhi [Journal]. Zhonghua Minguo Xiao Er Ke Yi Xue Hui
|July 1, 1992
Summary
Essential myoclonus in children presents as involuntary movements without clear causes. Current treatments like clonazepam showed limited effectiveness in these four pediatric cases.
Area of Science:
- Pediatric Neurology
- Movement Disorders
Background:
- Essential myoclonus is a rare neurological condition characterized by involuntary muscle jerks.
- Understanding its presentation and treatment in children is crucial for diagnosis and management.
Observation:
- Reported four cases of childhood essential myoclonus (three males, one female) with onset from 2 months to 16 years.
- Patients exhibited involuntary movements of the face, neck, or extremities.
- No significant neurological abnormalities or abnormal imaging/electrophysiological findings were noted, except for electromyogram (EMG) showing myoclonic discharge.
Findings:
- A single case had a family history of myoclonus.
- Treatment with clonazepam, with or without valproic acid, yielded no significant therapeutic effects.
Implications:
- This study highlights the diagnostic challenges of essential myoclonus in pediatric populations.
- The limited response to common treatments suggests a need for further research into alternative therapeutic strategies for childhood myoclonus.