Abstract: The author reviews the controversial treatment of electroconvulsive therapy (ECT) which has re-emerged as a safe and effective treatment for major depressive disorders. She first addresses the popular conceptions of ECT, which are based on early misuse of the treatment when it was delivered unmodified, or forcefully and without anaesthetic. She then uses a case study to illustrate the benefits of ECT for catatonia and catatonic states. Diagnostic criteria for catatonia include motoric immobility, excessive motor activity, extreme negativism or mutism, peculiarities of voluntary movement, and echolalia or echopraxia. The treatment of a patient is detailed, and the role of the ECT nurse is outlined. The ECT nurse is a co-ordinator, an educator, liaises with other services and families, and is a point of contact about ECT within the mental health service generally and in the ECT unit in particular. The case study showed successful use of ECT. A series of eight ECT treatments were administered to the catatonic patient, after which he was discharged home with minor depression and showing signs of enjoying life once again.