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Published on: May 16, 2019
Discontinuing medication in epileptic children: a study of risk factors related to recurrence
J L Gherpelli1, F Kok, S dal Forno
1Department of Neurology, Clinics Hospital University of Sao Paulo Medical School, Brazil.
Insights
In children with epilepsy seizure-free for 2 years, discontinuing antiepileptic drugs (AEDs) is safer if specific risk factors for seizure recurrence are absent. This approach helps identify children who can safely stop AED treatment.
Area of Science:
- Neurology
- Pediatric Epilepsy
Background:
- Epilepsy affects many children, with treatment often involving long-term antiepileptic drug (AED) use.
- Discontinuing AEDs in children who have been seizure-free requires careful consideration of recurrence risks.
Purpose of the Study:
- To identify risk factors for seizure recurrence in children with epilepsy after a period of seizure control.
- To evaluate the safety of discontinuing AEDs in pediatric epilepsy based on identified risk factors.
Main Methods:
- A cohort of 70 children with a history of seizures before age 12, seizure-free for at least 2 years, were studied.
- Recurrence of seizures after AED discontinuation was monitored, and associated risk factors were analyzed.
Main Results:
- Twenty children (28.5%) experienced seizure recurrence, primarily during or shortly after AED discontinuation.
- Key risk factors for recurrence included a history of >10 seizures, abnormal EEG, focal neurological signs, mental retardation, and mixed seizure patterns.
- Children with two or more risk factors were more likely to experience recurrence.
Conclusions:
- Selected pediatric epilepsy patients seizure-free for at least 2 years may safely discontinue AEDs.
- The presence or absence of specific risk factors can guide decisions on AED discontinuation in children.
Abstract:
We studied 70 children who had experienced at least two seizures before age 12 years, excluding febrile seizures, neonatal seizures, or seizures occurring during a metabolic, or infectious insult to the central nervous system (CNS) and who had been seizure free for at least 2 years. Twenty children (28.5%) experienced a recurrence, 75% during antiepileptic (AED) drug discontinuation or less than 6 months after discontinuation. Risk factors statistically related to seizure recurrence were greater than 10 seizures before seizure control, an abnormal EEG in the year before AED discontinuation, presence of focal neurologic signs and/or mental retardation, and presence of a mixed seizure pattern. Fourteen children (70%) with recurrence had two or more risk factors, whereas 36 (72%) without recurrence had no risk factor or only one. We conclude that a selected group of epileptic children who remain seizure-free for a period of at least 2 years can have AEDs discontinued based on presence or absence of risk factors.
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