Intermittent administration of low dose ketamine can shorten the course of electroconvulsive therapy for depression and reduce complications: A randomized controlled trial

•This study aimed to investigate the efficacy and safety of intermittent low-dose ketamine on improving the efficacy of ECT.•The results showed that low-dose ketamine (0.3mg/kg) in combination with ECT treatment can improve the remission rate of depression.•Intermittent and repeated adjunctive admin...

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