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. 2005:181:36-9.
doi: 10.1111/j.1600-0404.2005.00507.x.

Diagnosing and predicting refractory epilepsy

M J Brodie  1
Affiliations

Diagnosing and predicting refractory epilepsy

M J Brodie. Acta Neurol Scand Suppl. 2005.

Abstract

Over 30% of people with epilepsy will never achieve remission with antiepileptic drug (AED) therapy. These individuals are often severely disabled by their condition, have an unsatisfactory quality of life, and are at increased risk of sudden unexpected death. Early identification of refractory epilepsy would allow prompt referral to specialist services, where the diagnosis can be confirmed, seizures and syndromes classified, AED therapy optimized, and suitability for surgery assessed. Recent studies suggest that patients with symptomatic or cryptogenic epilepsy, those who experience multiple seizures before AED treatment initiation, and those with febrile convulsions, a family history of epilepsy, or psychiatric comorbidities are least likely to respond to drug therapy. Failure to achieve good seizure control with the first one or two AED monotherapies is usually sufficient to highlight the possibility of subsequent refractory epilepsy. For most of these individuals, combination therapy using AEDs with complementary modes of action is the recommended treatment approach.

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