The different forms of antidepressive continuation therapy, used in the Netherlands, to prevent relapse after electroconvulsive therapy, were examined by sending a questionaire to all ECT centers. Common practice is in agreement with the results of current research. However, recent studies suggest that pharmacological continuation therapy is less usefull to prevent relapse when pharmacotherapeutic resistance has been proven in the past. In these cases ECT-continuation therapy might bring a solution. On the effect of ECT-continuation therapy are few valid research results available.