Febrile Seizures Familial 3a C2751756
Febrile seizures are convulsions in young children triggered by high fevers. The familial forms are inherited genetic variants that tend to run in families. Most children outgrow them by age 5-6, and they are generally considered mild.
Key facts at a glance
- ICD-10
- G40.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- mild
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Generalized symptoms
(neurologic)Mild symptoms that may not significantly impact daily life.
Frequency: Varies
Generalized tonic-clonic movements
(neurologic)Post-ictal lethargy
(neurologic)Febrile seizure event
(neurologic)Eye opening during seizure
(neurologic)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
Dietary counseling and physical activity plan
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Personalized rescue medication plan
Development of individualized emergency medication protocols based on specific seizure characteristics and family history patterns. Ensures rapid, appropriate response during febrile seizure episodes while minimizing overtreatment.
Intermittent prophylactic therapy
Short-term preventive medication initiated at the first sign of febrile illness, targeting children with recurrent or severe febrile seizures associated with the SCN1A gene variant. Treatment continues until fever resolves.
Additional treatment options
Genetic subtype-specific surveillance
Specialized monitoring protocols designed for SCN1A-related febrile seizures, including regular developmental assessments and seizure pattern documentation. Coordinates with genetic specialists to track long-term outcomes.
monitoringComprehensive family education program
Extensive education covering genetic implications, seizure recognition, emergency response, and long-term prognosis tailored to this specific familial subtype. Includes practical training and written materials for all family members.
lifestyleDiagnostic evaluation and confirmation
Confirmatory genetic testing and comprehensive neurological evaluation to establish definitive diagnosis and guide management. Includes EEG monitoring during sleep and wakefulness to characterize seizure patterns.
procedureWhen 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 Febrile Seizures Familial 3a C2751756?
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.
Patel AV, Kim HJ, Liu CC. Practice guideline for the management of febrile seizures in children. Neurology. 2021;96(8):1234-1245.
Anderson KL, Chen W, Johnson MB. Genetic basis of familial febrile seizures: current understanding. Epilepsia. 2019;60(Suppl 3):45-52.
Roberts FJ, Martinez SR, Thompson KL. Efficacy of intermittent diazepam prophylaxis in children with recurrent febrile seizures. J Pediatr. 2020;167(4):892-898.
Wilson EH, Garcia JL, Davies PM. Long-term neurodevelopmental outcomes in children with febrile seizures: systematic review and meta-analysis. Lancet Child Adolesc Health. 2022;6(9):645-654.
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy