Electroencephalographic changes after electroconvulsive therapy

ABSTRACT

The electroconvulsive therapy [ECT] produces reversible electroencephalographic changes [EEG] in the form of disorganized background activity dominated by theta rhythm and epileptiform discharges [slow delta and theta waves with occasional sharp components]. These EEG changes are most marked one day after the ECT course, and returned back gradually to the baseline levels within one week to one month. The EEG changes are slightly more evident in patients receiving bilateral ECT treatment than those receiving unilateral ECT