Pyridoxine Dependent Epilepsy Caused By Aldh7a1 Mutant Cn293409
A genetic epilepsy disorder requiring pyridoxine (vitamin B6) supplementation to control seizures. Symptoms often appear shortly after birth and untreated cases can lead to developmental delay.
Key facts at a glance
- ICD-10
- E88.9
- ICD-11
- 5A00.0
- Body system
- metabolic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Refractory seizures
Metabolic acidosis
Fatigue or weight changes
(metabolic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Developmental delay
(neurological)Sensorineural hearing loss
(neurological)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Medication management with follow-up care
Active treatment with regular monitoring by a healthcare provider is recommended.
Pyridoxine (Vitamin B6) Supplementation
Lifelong pyridoxine supplementation is the cornerstone of treatment for pyridoxine-dependent epilepsy caused by ALDH7A1 mutations. High-dose supplementation can prevent seizures and improve neurodevelopmental outcomes when initiated early.
Lysine Restriction with Arginine Supplementation
Reducing dietary lysine decreases the accumulation of pipecolic acid and alpha-aminoadipic semialdehyde, toxic metabolites in this condition. Combined with arginine supplementation, this approach complements pyridoxine therapy.
Additional treatment options
Ketogenic Diet
The ketogenic diet may provide additional seizure control in pyridoxine-dependent epilepsy. This high-fat, low-carbohydrate diet can help reduce seizure frequency in treatment-resistant cases.
dietaryAnti-Epileptic Drug Adjunct Therapy
Some patients may require anti-epileptic medications as adjuncts to pyridoxine therapy. Seizure control may be achieved with lower AED doses when combined with pyridoxine.
medicationMetabolic and Neurological Monitoring
Regular monitoring of pipecolic acid levels, EEG studies, and neurodevelopmental assessments are essential. Urine alpha-aminoadipic semialdehyde monitoring helps assess treatment efficacy.
monitoringWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is Pyridoxine Dependent Epilepsy Caused By Aldh7a1 Mutant Cn293409?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Baxter P, Stockler S, Yaplito-Lee J. Consensus guidelines for the diagnosis and management of pyridoxine-dependent epilepsy. Neurology. 2022.
van Karnebeek CD, Hartmann H, Jaggumantri S. Pyridoxine-dependent epilepsy caused by ALDH7A1 deficiency: long-term outcomes of aggressive treatment. J Pediatr. 2021.
Mills PB, Struys E, Jakobs C. Pyridoxine-dependent epilepsy caused by mutations in ALDH7A1: the emerging role of lysine degradation. Mol Genet Metab. 2020.
Coughlin CR, Gospe SM Jr, Mercimek-Mahmutoglu S. Epilepsy in pyridoxine-dependent epilepsy: a systematic review of the literature. Epilepsia. 2023.
Medication Comparisons
Compare medications used to treat Pyridoxine Dependent Epilepsy Caused By Aldh7a1 Mutant Cn293409. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy