Electroconvulsive therapy: present and future

Electroconvulsive therapy (ECT) has been used to treat patients for 60 years. It is a humane and effective treatment. It is now firmly established as an important and effective method of treating certain severe forms of depression. Still, very little is known about its mode of action. Research in the refinement of administration has reduced undesirable side effects. There are almost no absolute contraindications to its administration. Nurses are involved directly with patients before, during, and after treatment.

Propofol reduces cognitive impairment after electroconvulsive therapy

BACKGROUND

Cognitive impairments are the main complication after electroconvulsive therapy (ECT). Modification of treatment parameters has been shown to affect the magnitude of these impairments, but the role of anesthetic type remains unclear. This study tested whether there is a difference in cognitive impairments immediately after ECT with propofol compared to thiopental anesthesia.

METHODS

This randomized, double-blind, crossover study included 15 patients receiving right unilateral ECT for depression. Patients received propofol or thiopental on alternating ECTs up to 6 treatments. Immediate and delayed verbal memory, motor speed, reaction speed, visuospatial, and executive functions were assessed 45 minutes after each ECT. Differences were assessed with repeated measures analysis of variance.

RESULTS

Cognitive impairments were reduced after ECT with propofol compared to thiopental. Time to emergence was quicker and EEG seizure duration was shorter after propofol treatments. There was no significant correlation between seizure duration and neuropsychological test performance.

CONCLUSIONS

Our results indicate that cognitive impairments in the early recovery period after ECT are reduced with propofol compared to thiopental anesthesia. We suggest that, in addition to ECT parameters, the type of anesthetic agent should be considered to reduce cognitive impairments after ECT.

Side effects of electroconvulsive therapy

Electroconvulsive therapy is extremely effective and is the fastest acting antidepressant treatment now available, although not necessarily limited to use with depression. Despite years of experience with this technique and its unparalleled successes, patients continue to be affected by mostly transient, but sometimes impairing side effects from memory problems and cardiovascular changes associated with ECT treatments. Nausea, headache, muscle aches, and other side effects that have been referenced in the literature and clinical experience will also be discussed in this review. Helpful literature with recommendations on minimizing the risks of these side effects and improving the tolerability of the electroconvulsive treatments will also be presented.

Update on electroconvulsive therapy (ECT) in older adults

Electroconvulsive therapy (ECT) is used increasingly in the older adult population for major depression, particularly when depression is not responsive to medications, when antidepressants are not tolerated due to side effects, or when depression is accompanied by life-threatening complications such as severe weight loss or catatonia where a rapid definitive response is required. ECT is considered a low-risk procedure that can be successfully done in medically ill older adults, but it is associated with a brief period of increased blood pressure and pulse leading to increased myocardial oxygen demand. ECT may cause delirium, particularly in the cognitively impaired older. As successful management of older patients undergoing a course of ECT often involves geriatricians and other medical practitioners, this review provides an update on the indications for ECT, how it is done, the common complications seen after the procedure, and its efficacy. Finally, specific recommendations for management are made.