Compared with more stringent criteria, the new ILAE criteria classify a greater number of patients with drug-resistant epilepsy. A significantly higher proportion of cases meeting this definition subsequently enter remission. A definition of drug-resistance that includes the additional criteria of failure of a third antiepileptic drug or high seizure frequency may better identify patients with truly drug-resistant epilepsy.
After failing a first drug, a significant proportion of children can still be controlled with subsequent therapeutic schedules. Only a small proportion develops refractory epilepsy.
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