National Organization for Rare Disorders, Inc.
It is possible that the main title of the report Pyridoxine-Dependent Epilepsy is not the name you expected.
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.
American Epilepsy Society
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For a Complete Report
This is an abstract of a report from the National Organization for Rare Disorders (NORD). For a full-text version of this report, go to www.rarediseases.org and click on Rare Disease Database under "Rare Disease Information".
The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only.
It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report.
This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.
Last Updated: 3/5/2014
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