Molecular Genetic Mechanisms of Infantile Epilepsies and the Impact of Genetic Diagnosis

Infant Criteria Inclusion Criteria: * Seizure onset at less than 12 months of age * Enrollment within 6 weeks of seizure-related presentation * Patient at Boston Children's Hospital Exclusion Criteria: * Simple febrile seizures * Acute provoked seizures (e.g., due to sepsis, hemorrhage, electrolyte abnormality, cerebral infarction, hypoxic ischemic encephalopathy, non-accidental injury) * Genetic or acquired cause of epilepsy already identified, including brain magnetic resonance imaging findings consistent with a specific genetic etiology (e.g., tuberous sclerosis complex) * Deceased prior to enrollment Parent Criteria Inclusion Criteria - Parent of eligible infant (see above) Exclusion Criteria \- Not the legal guardian of the eligible infant