Abstract
This prospective observational study explored the efficacy and tolerability of levetiracetam (LEV) in a prospective series of 200 patients with refractory epilepsy attending a single epilepsy service. Patients were started on adjunctive LEV using one of two titration schedules (slow and fast) and patients were studied for at least 6 months after commencing LEV. Fifty-three patients had severe learning disabilities. 14.3% became seizure free, 57.7% showed >50% reduction, 15.4% showed seizure increase. Patients with learning disability showed less positive but still very worthwhile results. A highly significant improvement in clinical outcomes overall is shown ( P<0.0001). 56.6% showed no adverse effects, 27.4% showed minor adverse effects, 16% were withdrawn. The most common adverse effect causing drug withdrawal was seizure exacerbation (12%) which was much commoner in primary generalised epilepsies ( P=0.00035). LEV appears to be an effective and well-tolerated anti-epileptic drug in drug resistant partial epilepsies.
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