Long-Term Effect of Maintenance Electroconvulsive Therapy in Patients With Depression-Data From a Small Randomized...

Area of Science:

• Psychiatry
• Neurology
• Clinical Trials

Background:

• Depression relapse remains a significant challenge despite available treatments.
• Maintenance electroconvulsive therapy (M-ECT) has shown short-term efficacy in preventing depressive episodes.
• Long-term comparative data on M-ECT versus medication-only is limited.

Purpose of the Study:

• To compare the long-term effects of maintenance electroconvulsive therapy (M-ECT) plus medication versus medication alone in patients with depression.
• To assess relapse and recurrence rates over an extended follow-up period after initial M-ECT treatment.

Main Methods:

• A randomized controlled trial initially comparing 1 year of M-ECT with medication versus medication only.
• Long-term follow-up (up to 10 years) using Swedish national registers after M-ECT cessation.
• Kaplan-Meier estimates used to compare time to relapse between groups.

Main Results:

• Median follow-up was 6.5 years for M-ECT plus medication group and 3.1 years for medication-only group.
• Relapse patterns appeared similar between groups after M-ECT completion upon visual inspection.
• Initial 1-year results showed a significant advantage for M-ECT with medication.

Conclusions:

• Long-term benefits of M-ECT for depression may be sustained after treatment cessation.
• The study's small sample size and statistical imprecision limit definitive conclusions.
• Further long-term studies are needed to confirm the sustained efficacy of M-ECT.