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NORD is very grateful to Sidney M Gospe, Jr, MD, PhD, Herman and Faye Sarkowsky Endowed Chair of Child Neurology, Head, Division of Pediatric Neurology, Professor of Neurology and Pediatrics, University of Washington School of Medicine, for assistance in the preparation of this report.
Synonyms of Pyridoxine-Dependent Epilepsy
- antiquitin deficiency
- pyridoxine-dependent seizures
- No subdivisions found.
Pyridoxine-dependent epilepsy (PDE) is a rare cause of stubborn, difficult to control, (intractable) seizures appearing in newborns, infants and occasionally older children, of which more than 200 cases have now been reported in the medical literature. PDE presents in a variety of forms with variable signs and symptoms (phenotypically heterogeneous). The one clinical feature characteristic of all patients with PDE is intractable seizures that are not controlled with antiepileptic drugs but which do respond both clinically and usually on EEG (electroencephalographically) to large daily supplements of pyridoxine. These patients are not pyridoxine-deficient. They are metabolically dependent on the vitamin. In other words, even though they get the recommended daily allowance (RDA) of pyridoxine from their normal diet, they require substantially more of the vitamin than an otherwise normal individual. Patients with PDE require pyridoxine therapy for life.
Pyridoxine-Dependent Epilepsy Resources
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