Status epilepticus (SE) is an acute and critical form of neurological and systemic diseases involving multiple clinical disciplines, with an annual incidence of (20-73) per 100,000 people and a clinical case fatality rate of 20%. Although there are many causes of SE, the primary goal of treatment is to terminate the seizures quickly, and timely and standardized treatment can reduce mortality and improve prognosis. The prognosis is closely related to the duration of the episode, and the longer the episode, the worse the prognosis. If seizures of convulsive status epilepticus persist for more than 10 minutes and are not provided with optimal therapeutic intervention, serious adverse outcomes and even death are likely to occur. How to effectively terminate status epilepticus and actively find effective, reliable and safe treatment options is a key research problem at present. Due to critical illness, limited treatment options, and poor prognosis, new treatments are urgently needed to terminate persistent epileptic activity. Lacosamide (LCM) is a third-generation new antiepileptic drug, which was approved in 2008 for the additive treatment of patients aged 16 years and older with focal seizures, with or without generalized seizures. In 2017, it was extended to patients over 4 years of age. Lacosamide is an anticonvulsant drug with a new dual mechanism of action: first, lacosamide antagonizes the glycine site of N-methyl-D-aspartate (NMDA) receptor; Second, lacosamide selectively acts on the slow inactivation of sodium channels and prolongs the inactivation time of sodium channels, which can more effectively reduce sodium influx and reduce the excitability of neurons, so as to achieve the purpose of treating epilepsy. Lacosamide exhibits linear pharmacokinetics, high oral bioavailability, protein binding of \< 15%, rapid and almost complete absorption in a single oral dose, and maximum plasma concentrations within 1 to 4 hours. A number of randomized controlled clinical studies and real-world studies abroad have shown that lacosamide can significantly improve the effective rate and seizure-free rate of epilepsy control, and it is well tolerated and has fewer adverse reactions. The 2022 Chinese Expert Consensus on the Diagnosis and Treatment of Post-stroke Epilepsy recommended lacosamide injection as a first-line drug for non-convulsive status epilepticus after stroke, and the Chinese Expert Consensus on the Diagnosis and Treatment of Status Epilepticus in Children (2022) recommended that lacosamide be considered as an additive treatment for refractory convulsive status epilepticus in children \> 60 minutes . There is a lack of clinical research data on the efficacy and safety of intravenous bolus lacosamide for status epilepticus, including convulsive status epilepticus and non-convulsive epilepticus.
Age range
4 Years – 60 Years
Sex
ALL
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Seizure reduction rate
Timeframe: From enrollment to the end of treatment at 1 week