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Tactile-evoked rolandic discharges: a benign finding?
1Department of Diagnostic Neurophysiology, British Columbia's Children's Hospital, Vancouver, British Columbia, Canada.
Epilepsia
|February 1, 2003
Summary
Tactile-evoked rolandic discharges in patients are generally benign and age-related, not indicating future epilepsy development or existing seizure disorders.
Area of Science:
- Neurology
- Pediatric Neurology
- Clinical Neurophysiology
Background:
- Rolandic discharges are common EEG findings in children.
- The clinical significance of tactile-evoked rolandic discharges remains debated.
- Previous studies suggested a link between these discharges and epilepsy development.
Purpose of the Study:
- To investigate if tactile-evoked rolandic discharges indicate a benign patient group.
- To determine if tactile-evoked rolandic discharges predict future epilepsy.
- To compare patients with tactile-evoked (TE) vs. non-tactile (NT) rolandic discharges.
Main Methods:
- Retrospective study of 304 patients with rolandic discharges over 8 years.
- Patients were categorized into NT, TE, and tactile-only evoked (TO) groups based on tactile stimulation.
- Analysis of developmental, neurological, and EEG findings, including seizure history.
Main Results:
- Tactile-enhanced discharges (TE and TO) were associated with normal development, intelligence, and neurological exams.
- Patients with TE/TO discharges had a lower incidence of seizures and EEG abnormalities.
- Only a small number of patients developed seizures, not fitting typical epilepsy patterns.
Conclusions:
- Tactile-evoked rolandic discharges appear to be a benign, age-related phenomenon.
- These discharges are not a reliable marker for future epilepsy development.
- They do not seem to correlate with existing interictal electrographic seizure disorders.