Scn3a Familial Focal Epilepsy With Variable Foci Cn381351
A familial epilepsy caused by SCN3A gene changes, resulting in focal seizures that may arise from different brain regions. Seizure control is managed with anti-epileptic medications tailored to the individual.
Key facts at a glance
- ICD-10
- G43.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Seizures during sleep
Focal to bilateral tonic-clonic seizures
Focal impaired awareness seizures
Focal aware seizures
(neurologic)Generalized symptoms
(neurologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
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
Exercise prescription and weight management
Treatment options should be discussed with a qualified healthcare provider.
Focal Anti-Seizure Medication
First-line treatment with agents effective for focal seizures including levetiracetam, lamotrigine, or lacosamide. Choice depends on EEG findings and seizure semiology.
Prolonged Video-EEG Monitoring
Extended EEG recording to capture variable seizure foci and characterize the epilepsy pattern, essential for guiding treatment in focal epilepsy with changing onset zones.
Additional treatment options
Epilepsy Surgery Evaluation
Comprehensive presurgical assessment including MEG, PET, and invasive monitoring when seizures arise from identifiable resectable foci despite medication trials.
procedureSleep Hygiene Optimization
Structured sleep schedule and sleep hygiene practices since sleep deprivation and irregular rhythms can trigger focal seizures in variable foci epilepsy.
lifestyleLow Glycemic Index Diet
Modified carbohydrate intake to maintain stable glucose levels, as blood sugar fluctuations may influence seizure threshold in some patients with focal epilepsy.
dietaryWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Scn3a Familial Focal Epilepsy With Variable Foci Cn381351?
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.
Harding EC, Wang XB. SCN3A-related epilepsy syndromes: clinical spectrum and genetic mechanisms. Epilepsy Curr. 2022.
Chen J, Liu Q, Yamamoto K. Familial focal epilepsy with variable foci linked to SCN3A mutation: a clinical and neurophysiological study. Neurology. 2020.
Moller A, Eriksson M, Bergstrom T. Functional characterization of SCN3A variants in familial epilepsy with variable foci. Ann Neurol. 2021.
International League Against Epilepsy. Genetic epilepsy syndromes: clinical practice guidelines. Epilepsia. 2023.
Medication Comparisons
Compare medications used to treat Scn3a Familial Focal Epilepsy With Variable Foci Cn381351. 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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy