Efficacy of Levetiracetam As Add-On Therapy in the Treatment of Seizures in Neonates

Overview

Journal Neonatology

Publisher Karger

Specialty Gynecology & Obstetrics

Date 2023 Dec 19

PMID 38113859

Authors

Mathies Rondagh

Linda S de Vries

Cacha M P C D Peeters-Scholte

Selma C Tromp

Sylke J Steggerda

Affiliations

Soon will be listed here.

Abstract

Introduction: There is no consensus regarding the efficacy of add-on therapy with levetiracetam (LEV) in the treatment of seizures in neonates. The aim of this study was to evaluate the efficacy of add-on therapy with LEV for achieving >80% seizure reduction after phenobarbital (PB) treatment.

Methods: Retrospective cohort study of near term neonates admitted to the neonatal intensive care unit with EEG-confirmed seizures despite treatment with PB as first-line therapy and using LEV as 2nd-, 3rd- or 4th-line treatment. Antiseizure medication was administered according to national guidelines. All neonates were monitored with 2-channel amplitude-integrated electroencephalography. The total seizure burden in minutes, 2 h before and 4 h after administration of LEV, was calculated using raw EEG. Primary outcome was the efficacy of LEV in achieving >80% seizure reduction. The efficacy of additional midazolam (MDZ) and lidocaine (LDC) was also calculated.

Results: A total of 47 full-term neonates were included. The mean total loading dose of LEV was 40 mg/kg (36-44 mg/kg). Seizure etiology consisted of hypoxic-ischemic encephalopathy (n = 11), hemorrhagic or ischemic stroke (n = 16), central nervous system infection (n = 8), genetic (n = 8), metabolic disorders (n = 3), and unknown (n = 1). Following LEV administration, >80% seizure reduction was observed in 17% (8/47) of neonates, whereas it was 23% (6/26) after MDZ and 92% (23/25) after LDC administration.

Discussion: Although the cumulative loading dose of LEV was low and the group of infants studied was heterogeneous, the efficacy of LEV as add-on therapy for the treatment of seizures in neonates was limited. The highest seizure reduction rate was seen after LDC administration.

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