Epilepsy research
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Clinical Trial
Levetiracetam in newly diagnosed late-onset post-stroke seizures: a prospective observational study.
Levetiracetam (LEV) monotherapy was investigated in 35 patients (pts) (16M/19F, 71.9+/-7.3 years of age) with late-onset post-stroke seizures (i.e. seizures occurring at least 2 weeks after an ischemic stroke) in a prospective open-label study. Overall, 27 pts (77.1%) achieved a condition of seizure freedom (defined as 1 year without seizures): 19 (54.3%) at a daily LEV dose of 1000mg, 7 (20.0%) at 1500mg, 1 (2.8%) at 2000mg. Four pts (11.4%) discontinued the drug because of intolerable side effects (drowsiness associated to gait disturbance in 1 pt, and aggressive behaviour in the remaining 3 pts); 3 pts were unresponsive at a dose of 3000mg, and 1 pt was lost at follow-up. These observations suggest that LEV exhibits safety and efficacy profiles which make it an optimal candidate as a first-choice drug against post-stroke seizures.
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Comparative Study
The impact of lesions and epilepsy on personality and mood in patients with symptomatic epilepsy: a pre- to postoperative follow-up study.
To discern more static and lesion based from more dynamic epilepsy-driven features of depression and personality in focal symptomatic epilepsy, change in personality and mood was examined as a function of focus lateralization and seizure outcome after epilepsy surgery. ⋯ Apart from elevated depression and introversion scores which showed some relation to pathology, no major deviant personality features could be discerned. While seizure freedom related improvements may indicate both epilepsy and reactively driven behavioral changes, the differential recovery observed in seizure-free left versus right temporal resected patients indicate epilepsy-specific behavioral dysfunction.
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Studies of adults who underwent temporal lobectomy for intractable temporal lobe epilepsy (TLE) demonstrated declining seizure free rates over time. Using seizure and social parameters, we followed patients who had temporal lobe surgery (TLS) in childhood to determine long-term outcomes. ⋯ Two-thirds of children who underwent TLS achieved seizure freedom at >or=10 year follow-up. Children with tumors or cavernous angiomas achieved better long-term outcomes than those with other histopathologies. Long-term seizure free patients were most often satisfied with surgery and employed or in school.
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A 22-year-old woman with mitochondriopathy and pre-existing epilepsy developed status epilepticus (SE) not responding to benzodiazepines, phenytoin, thiopental, and propofol. SE was terminated within days after supplemental administration of continuous ketamine infusion to midazolam. The case suggests strong anticonvulsant properties of ketamine even after failure of GABAergic anesthetics, likely due to increased NMDA receptor expression with ongoing seizure activity. Thus, ketamine should be incorporated into therapeutic regimens for difficult-to-treat SE.