Subanesthetic dose of ketamine for the antidepressant effects and the associated cognitive impairments of electroconvulsive therapy in elderly patients—A randomized double‐blind controlled clinical study

摘要

We previously confirmed that low‐dose ketamine, as an adjunctive anesthetic for electroconvulsive therapy (ECT) in adult patients with depression, accelerates the effects of ECT and reduces the ECT‐induced learning and memory deficits. This study explored the efficacy and safety of low‐dose ketamine in elderly patients with depression.