Etomidate improves seizure adequacy during electroconvulsive therapy

Area of Science:

• Anesthesiology
• Neurology
• Psychiatry

Background:

• Electroconvulsive therapy (ECT) is a crucial treatment for severe psychiatric disorders.
• Achieving adequate seizure duration and quality is vital for ECT efficacy.
• Convulsion-resistant patients may require alternative anesthetic agents.

Purpose of the Study:

• To evaluate the impact of switching from propofol to etomidate on seizure quality during ECT.
• To compare seizure parameters between propofol and etomidate in treatment-resistant patients.

Main Methods:

• Retrospective analysis of paired cases involving 33 patients undergoing ECT.
• Assessment of seizure variables, including duration and electroencephalogram (EEG) characteristics.
• Statistical analysis using a generalized linear mixed model (GLMM) for repeated measures.

Main Results:

• Etomidate anesthesia resulted in significantly greater seizure duration compared to propofol.
• Improved seizure quality was observed in the EEG register with etomidate.
• Etomidate administration prevented the need for additional electroconvulsive therapy stimulation.
• No significant differences were found between etomidate and propofol in delivered energy or automated seizure parameters.

Conclusions:

• Switching from propofol to etomidate appears to be an effective strategy for enhancing seizure quality in ECT.
• Etomidate may offer advantages in achieving optimal seizure parameters for convulsion-resistant patients.
• This anesthetic approach warrants consideration for optimizing ECT treatment outcomes.