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Pyridoxine-dependency seizure: report of a rare presentation
Insights
Pyridoxine therapy effectively treated a child's minor motor seizures and abnormal EEG. This vitamin treatment resolved epilepsy symptoms that were resistant to standard anticonvulsants.
Area of Science:
- Pediatric Neurology
- Clinical Neuroscience
- Epileptology
Background:
- Infantile seizures pose diagnostic and therapeutic challenges.
- Pyridoxine-dependent epilepsy is a rare genetic disorder.
- Standard anticonvulsants are not always effective for certain seizure types.
Observation:
- A 14-month-old child presented with minor motor seizures and vertex/frontocentral EEG abnormalities.
- Seizures persisted until 22 months of age despite multiple anticonvulsant treatments.
- EEG abnormalities included single spikes and polyspikes.
Findings:
- Pyridoxine (75 mg daily) was initiated at 22 months, with anticonvulsants discontinued.
- Seizures resolved completely within 20 months of pyridoxine therapy.
- EEG abnormalities normalized concurrently with seizure resolution.
Implications:
- Pyridoxine supplementation can be a crucial treatment for specific pediatric seizure disorders.
- This case highlights the importance of considering vitamin-responsive epilepsies.
- Early diagnosis and targeted pyridoxine treatment may prevent long-term neurological sequelae.
Abstract:
A child developed minor motor seizures at the age of 14 months accompanied by an abnormal electroencephalogram showing single spikes and polyspikes over the vertex and frontocentral regions. Seizures continued until the age of 22 months despite administration of several standard anticonvulsants. At age 22 months, pyridoxine, 75 mg daily, was initiated and anticonvulsants were discontinued. Both the seizures and the electroencephalographic abnormality have disappeared over the ensuing 20 months with pyridoxine therapy.