Epileptic Disorders - Editor's Choice
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Siobhan West, Sarah J Nolan, Richard Newton
This seminar discusses the history and development of techniques for surgical intervention for people with refractory focal epilepsy. Published surgical success rates and prognostic factors associated with post-operative seizure freedom from individual studies have been variable and contradictory. We present here the key findings of a Cochrane systematic review of all evidence published since the introduction of magnetic resonance imaging (MRI) to pre-operative surgical assessment in 1984. Our findings show the usefulness of uncontrolled case series is now past. Future studies with a prospective controlled design should focus on specific research questions to help improve results and provide better-informed advice.