Magnesium sulfate for non-eclamptic status epilepticus.

Area of Science:

• Neurology
• Pharmacology
• Evidence-Based Medicine

Background:

• Status epilepticus (SE) and refractory status epilepticus (RSE) are neurological emergencies.
• Intravenous magnesium sulfate (MgSO4) is explored as a treatment for non-eclamptic SE/RSE.

Purpose of the Study:

• To systematically review the literature on IV MgSO4 for non-eclamptic SE and RSE.
• To assess the efficacy and safety of MgSO4 in this patient population.

Main Methods:

• Comprehensive literature search across multiple databases (MEDLINE, EMBASE, Scopus, etc.) and gray literature.
• Evidence strength adjudicated using Oxford and GRADE methodologies by two independent reviewers.
• Inclusion of 19 original articles describing 28 patients (adult, pediatric, unknown age).

Main Results:

• Seizure reduction/control with IV MgSO4 in 50% of patients (14/28).
• Complete and partial responses observed in 42.9% and 7.1% of patients, respectively.
• Seizure recurrence upon MgSO4 withdrawal in 50% of responders; three adverse events reported.

Conclusions:

• Limited evidence (Oxford level 4, GRADE D) suggests a trend towards improved seizure control with IV MgSO4 for non-eclamptic RSE.
• Routine use of IV MgSO4 in non-eclamptic SE/RSE is not currently recommended.
• Further prospective studies are necessary to establish the anti-epileptic efficacy of MgSO4 in this context.