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- Ben-Menachem, Elinor, 1945
(författare)
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Partial Onset Seizure Treatment with Adjunctive Lacosamide in Epileptic Adults: A Review
- 2015
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Ingår i: Epilepsi. - : AVES YAYINCILIK A.Ş.. - 1300-7157. ; 21:1, s. 1-5
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Forskningsöversikt (refereegranskat)abstract
- Epilepsy is a common chronic disorder of the brain and can be seen at all ages with a higher prevalence in developing countries. Adjunctive therapy with antiepileptic drugs (AEDs) is the gold standard in treatment of epilepsy. Lacosamide (LCM) is a novel AED which is approved for adjunctive therapy for the treatment of partial- onset seizures. Recently 3 Phase II/III placebo controlled clinical trials with similar designs were conducted to investigate the efficacy and safety of lacosamide (LCM) administered as adjunctive therapy with other AEDs. Data collected from those studies were pooled, re- analyzed and presented in this review article. Results revealed that LCM is well tolerated and effective in seizure reduction as adjunctive therapy in patients with uncontrolled partial- onset seizures.
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- Ben-Menachem, Elinor, 1945
(författare)
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Pregabalin pharmacology and its relevance to clinical practice.
- 2004
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Ingår i: Epilepsia. - : Wiley. - 0013-9580 .- 1528-1167. ; 45 Suppl 6, s. 13-8
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Forskningsöversikt (refereegranskat)abstract
- Pregabalin is a potent ligand for the alpha-2-delta subunit of voltage-gated calcium channels in the central nervous system that exhibits potent anticonvulsant, analgesic, and anxiolytic activity in a range of animal models. In addition, pregabalin has been shown to be a highly effective adjunctive therapy for partial seizures in clinical trials. Potent binding to the alpha-2-delta site reduces depolarization-induced calcium influx with a consequential modulation in excitatory neurotransmitter release. Pregabalin has no demonstrated effects on GABAergic mechanisms. Pregabalin demonstrates highly predictable and linear pharmacokinetics, a profile that makes it easy to use in clinical practice. Absorption is extensive, rapid, and proportional to dose. Time to maximal plasma concentration is approximately 1 h and steady state is achieved within 24-48 h. These characteristics reflect the observed onset of efficacy as early as day two in clinical trials. High bioavailability, a mean elimination half life (t(1/2)) of 6.3 h, and dose-proportional maximal plasma concentrations and total exposures predict a dose-response relationship in clinical practice and allow an effective starting dose of 150 mg/day in clinical practice without need for titration. Administration with food has no clinically relevant effect on the amount of pregabalin absorbed, providing for a dosing regimen uncomplicated by meals. Pregabalin does not bind to plasma proteins and is excreted virtually unchanged (<2% metabolism) by the kidneys. It is not subject to hepatic metabolism and does not induce or inhibit liver enzymes such as the cytochrome P450 system. Therefore, pregabalin is unlikely to cause, or be subject to, pharmacokinetic drug-drug interactions--an expectation that has been confirmed in clinical pharmacokinetic studies. However, dose adjustment may be necessary in patients with renal insufficiency. Thus, the pharmacological and pharmacokinetic profiles of pregabalin provide a predictable basis for its use in clinical practice.
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- Ben-Menachem, Elinor, 1945, et al.
(författare)
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Role of valproate across the ages. Treatment of epilepsy in adults.
- 2006
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Ingår i: Acta neurologica Scandinavica. Supplementum. - : Hindawi Limited. - 0065-1427 .- 0001-6314 .- 1600-0404. ; 184, s. 14-27
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Forskningsöversikt (refereegranskat)abstract
- A workshop was held in Göteborg in June 2005 to discuss the place of valproate in treating adult epilepsies. Consensus positions were developed on the epilepsy types for which the drug is most suitable and the use of valproate in women of child-bearing age, in men and in patients with psychiatric comorbidity. Valproate was considered to be effective across a broad variety of epilepsy syndromes and seizure types and should be considered a suitable choice for first-line monotherapy of juvenile myoclonic epilepsy and other idiopathic generalized epilepsies. The use of valproate by women of child-bearing age is associated with potential harm to the foetus. A conservative approach to treatment is recommended in these patients whereby alternative antiepileptic drugs should be proposed to women planning pregnancies wherever satisfactory seizure control can be thereby maintained. In cases where valproate is used during pregnancy, either because the pregnancy was unplanned or because alternative treatment options of equivalent efficacy are unavailable, appropriate counselling, precautionary measures and monitoring should be provided. The evidence for an impact of valproate on male reproductive health is equivocal and considerations of male fertility should not be taken into account in deciding whether to prescribe valproate to men. Valproate can be proposed safely to patients with comorbid psychiatric disease or underlying psychiatric vulnerability.
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- Brodie, Martin J, et al.
(författare)
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Cannabinoids for epilepsy: What do we know and where do we go?
- 2018
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Ingår i: Epilepsia. - : Wiley. - 1528-1167 .- 1528-1167 .- 0013-9580. ; 59:2, s. 291-296
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Forskningsöversikt (refereegranskat)abstract
- Over the past decade there has been an increasing interest in using cannabinoids to treat a range of epilepsy syndromes following reports of some remarkable responses in individual patients. The situation is complicated by the fact that these agents do not appear to work via their attachment to endogenous cannabinoid receptors. Their pharmacokinetics are complex, and bioavailability is variable, resulting in difficulty in developing a suitable formulation for oral delivery. Drug interactions also represent another complication in their everyday use. Nevertheless, recent randomized, placebo-controlled trials with cannabidiol support its efficacy in Dravet and Lennox-Gastaut syndromes. Further placebo-controlled studies are underway in adults with focal epilepsy using cannabidivarin. The many unanswered questions in the use of cannabinoids to treat epileptic seizures are briefly summarized in the conclusion.
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- Johannessen, Svein I, et al.
(författare)
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Management of focal-onset seizures: an update on drug treatment.
- 2006
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Ingår i: Drugs. - 0012-6667. ; 66:13, s. 1701-25
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Forskningsöversikt (refereegranskat)abstract
- Focal-onset seizures are manifestations of abnormal epileptic firing of brain cells in a localised area or areas of the brain. The diagnosis of focal-onset seizures initially entails an EEG, a detailed history from the patient and eyewitnesses, as well as computer tomographic or, preferably, magnetic resonance imaging scans. Video EEG to record ictal events may be necessary to establish the correct diagnosis.Focal seizures are classified according to the International Classification of Epileptic Seizures and International Classification of Epilepsies and Epilepsy Syndromes. It is important to try to decide how the seizure event fits into this system in order to successfully evaluate and optimise treatment, as well as to give detailed information to the patient about their seizures and prognosis.Once the decision to treat the seizures has been made, the physician must choose which medication is the most appropriate to begin with. Carbamazepine, phenytoin or valproic acid (sodium valproate) are often rated as first-line drugs, but factors such as adverse-effect profiles, age, possibility of pregnancy, and concomitant diseases and medication also need to be considered. Most of the newer antiepileptic drugs (AEDs) appear to have good efficacy and better tolerability than the older agents, but evidence to support their superiority is scarce and has led to conflicting advice in several guidelines. Among the newer AEDs, lamotrigine, gabapentin, topiramate and oxcarbazepine have obtained monotherapy indication in many countries. The higher costs of the newer AEDs may inhibit their wider use, especially in poorer countries.
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- Kanner, Andres M., et al.
(författare)
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Mood disorders in adults with epilepsy: a review of unrecognized facts and common misconceptions
- 2024
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Ingår i: ANNALS OF GENERAL PSYCHIATRY. - 1744-859X. ; 23:1
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Forskningsöversikt (refereegranskat)abstract
- Epilepsy is one of the most common neurologic conditions. Its clinical manifestations are not restricted to seizures but often include cognitive disturbances and psychiatric disorders. Prospective population-based studies have shown that people with epilepsy have an increased risk of developing mood disorders, and people with a primary mood disorder have an increased risk of developing epilepsy. The existence of common pathogenic mechanisms in epilepsy and mood disorders may explain the bidirectional relation between these two conditions. Recognition of a personal and family psychiatric history at the time of evaluation of people for a seizure disorder is critical in the selection of antiseizure medications: those with mood-stabilizing properties (e.g., lamotrigine, oxcarbazepine) should be favoured as a first option in those with a positive history while those with negative psychotropic properties (e.g., levetiracetam, topiramate) avoided. While mood disorders may be clinically identical in people with epilepsy, they often present with atypical manifestations that do not meet ICD or DSM diagnostic criteria. Failure to treat mood disorders in epilepsy may have a negative impact, increasing suicide risk and iatrogenic effects of antiseizure medications and worsening quality of life. Treating mood disorders in epilepsy is identical to those with primary mood disorders. Yet, there is a common misconception that antidepressants have proconvulsant properties. Most antidepressants are safe when prescribed at therapeutic doses. The incidence of seizures is lower in people randomized to antidepressants than placebo in multicenter randomized placebo-controlled trials of people treated for a primary mood disorder. Thus, there is no excuse not to prescribe antidepressant medications to people with epilepsy.
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