Electroencephalographic Seizure Duration in Electroconvulsive Therapy: A Clinical Study.

Electroencephalographic estimates of electroconvulsive therapy (ECT)-induced seizure duration were obtained in 141 patients with major depression (n = 41) or schizophrenia (n = 100). A slight reduction in seizure duration across a course of ECT failed to reach statistical significance and was unrelated to clinical improvement.