RT Book, Section A1 Misra, Sunita N. A1 Seto, Elaine S. A2 Kline, Mark W. SR Print(0) ID 1182923414 T1 Febrile Seizures T2 Rudolph's Pediatrics, 23e YR 2018 FD 2018 PB McGraw-Hill Education PP New York, NY SN 9781259588594 LK accesspediatrics.mhmedical.com/content.aspx?aid=1182923414 RD 2024/11/10 AB The National Institutes of Health (NIH) defines febrile seizure as an event in infancy or childhood usually occurring between 3 months and 5 years of age associated with a fever but without evidence of intracranial infection or defined cause for the seizure. The International League Against Epilepsy (ILAE) further refined the definition to include infants older than 1 month of age without prior neonatal seizures or unprovoked seizures who did not meet criteria for acute symptomatic seizures. Febrile seizures occur in approximately 2% to 5% of infants and young children in the United States and as many as 9% to 14% of children in Japan, India, and Guam, rendering it the most common neurologic disorder in this age group and the most common type of convulsive event in children younger than 5 years of age.