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  • Title: Levetiracetam versus Phenytoin for the Pharmacotherapy of Benzodiazepine-Refractory Status Epilepticus: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
    Author: Xue T, Wei L, Shen X, Wang Z, Chen Z, Wang Z.
    Journal: CNS Drugs; 2020 Dec; 34(12):1205-1215. PubMed ID: 33111213.
    Abstract:
    BACKGROUND: Recent studies have shown conflicting results regarding the effectiveness of levetiracetam for treating benzodiazepine-refractory status epilepticus (SE) compared with phenytoin. Therefore, a meta-analysis was carried out to assess the value of levetiracetam versus phenytoin in the pharmacotherapy of benzodiazepine-refractory SE. OBJECTIVE: The aim of this systematic review and meta-analysis was to compare the efficacy and safety of levetiracetam and phenytoin in the treatment of benzodiazepine-refractory SE. METHODS: The MEDLINE, EMBASE, CENTRAL and ClinicalTrials.gov databases were searched for randomized controlled trials (RCTs) that had been conducted to evaluate levetiracetam versus phenytoin for benzodiazepine-refractory SE, to April 2020. The data were assessed using Review Manager 5.3 software. The risk ratio (RR) was analyzed using dichotomous outcomes, and calculated using a random-effect model. RESULTS: We pooled 1850 patients from 12 RCTs. Patients in the levetiracetam group had a significantly higher rate of clinical seizure cessation than in the phenytoin group (75.2% vs. 67.8%; RR 1.14, 95% confidence interval [CI] 1.05-1.25, p = 0.003). Moreover, less adverse events were observed in the levetiracetam group than in the phenytoin group (17.8% vs. 21.4%; RR 0.82, 95% CI 0.70-0.97, p = 0.02). In subgroup analysis, clinical seizure cessation was achieved more frequently with a higher dose of levetiracetam (> 30 mg/kg) [RR 1.15, 95% CI 1.00-1.32, p = 0.05]. Furthermore, in the subgroup of children, levetiracetam showed a higher rate of clinical seizure cessation than phenytoin (RR 1.13, 95% CI 1.02-1.25, p = 0.02). CONCLUSION: Pharmacotherapy for BZD-refractory SE by LEV is superior to PHT in efficacy and safety outcomes.
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