Prognosis varies greatly depending on the epilepsy syndrome, but can also vary for different patients with the same syndrome. There is generally a good prognosis for children with idiopathic epilepsy and late onset of seizures, and in those without neurologic dysfunction.[171]Hauser E, Freilinger M, Seidl R, et al. Prognosis of childhood epilepsy in newly referred patients. J Child Neurol. 1996 May;11(3):201-4.
http://www.ncbi.nlm.nih.gov/pubmed/8734022?tool=bestpractice.com
Rapid response to therapy is an important predictor of lasting remission. The most important prognostic factor is the etiology of seizures.[172]Ramos Lizana J, Cassinello Garcia E, Carrasco Marina LL, et al. Seizure recurrence after a first unprovoked seizure in childhood: a prospective study. Epilepsia. 2000 Aug;41(8):1005-13.
https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1528-1157.2000.tb00286.x
http://www.ncbi.nlm.nih.gov/pubmed/10961628?tool=bestpractice.com
Around one third of all pediatric patients with epilepsy will have a poor long-term outcome in terms of persistent seizures after remission, or no remission at all.[173]Sillanpää M, Schmidt D. Natural history of treated childhood-onset epilepsy: prospective, long-term population-based study. Brain. 2006 Mar;129(Pt 3):617-24.
https://academic.oup.com/brain/article/129/3/617/390833
http://www.ncbi.nlm.nih.gov/pubmed/16401617?tool=bestpractice.com
Epilepsy with onset in infancy and early childhood often runs a more severe course.[32]Zuberi SM, Wirrell E, Yozawitz E, et al. ILAE classification and definition of epilepsy syndromes with onset in neonates and infants: position statement by the ILAE Task Force on Nosology and Definitions. Epilepsia. 2022 Jun;63(6):1349-97.
https://onlinelibrary.wiley.com/doi/10.1111/epi.17239
http://www.ncbi.nlm.nih.gov/pubmed/35503712?tool=bestpractice.com
Treatment with anticonvulsants after the first seizure reduces the risk of seizure recurrence, but there is no evidence of a difference when treatment is started after the first versus second seizure in achieving long-term seizure remission.[45]Leone MA, Giussani G, Nevitt SJ, et al. Immediate antiepileptic drug treatment, versus placebo, deferred, or no treatment for first unprovoked seizure. Cochrane Database Syst Rev. 2021 May 4;(5):CD007144.
https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD007144.pub3/full
http://www.ncbi.nlm.nih.gov/pubmed/33942281?tool=bestpractice.com
The risk of relapse after discontinuation of anticonvulsant treatment is higher in patients with brain structural lesions or intellectual disability, and in some epilepsy syndromes (e.g., juvenile myoclonic epilepsy).