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Epilepsy with myoclonic absences
1Department of Paediatrics, University Hospital, Kuala Lumpur, Malaysia.
Archives of Disease in Childhood
|April 1, 1994
Summary
Epilepsy with myoclonic absences in children presents unique challenges. Differentiating it from typical absence epilepsy is crucial due to poorer treatment response and long-term outcomes.
Area of Science:
- Pediatric Neurology
- Epileptology
Background:
- Epilepsy with myoclonic absences is a distinct epilepsy syndrome.
- It affects children, with a mean age of onset around 4.9 years.
Purpose of the Study:
- To describe the clinical characteristics, EEG findings, and treatment outcomes of children with epilepsy and myoclonic absences.
- To highlight the importance of differentiating this condition from typical childhood absence epilepsy.
Main Methods:
- Case series describing eight children (five girls) with epilepsy and myoclonic absences.
- Clinical and electroencephalogram (EEG) data were analyzed.
- Treatment responses, including lamotrigine, were evaluated.
Main Results:
- Patients experienced brief episodes of loss of awareness with bilateral upper limb jerking, associated with 3 Hz spike-wave discharges on EEG.
- Seven patients also had generalized tonic-clonic or astatic seizures.
- All patients developed learning difficulties, and seven had behavioral problems.
- Conventional treatments were effective in only two children; lamotrigine showed partial success in five of six patients.
Conclusions:
- Epilepsy with myoclonic absences is associated with significant cognitive and behavioral comorbidities.
- Treatment response is often poor, with limited sustained remission.
- Accurate differentiation from typical childhood absence epilepsy is essential for appropriate management and prognosis.