Electroconvulsive therapy (ECT) is a very effective and generally safe treatment for depression and some other health conditions that uses electricity to trigger a seizure.
Shock treatment; Shock therapy; ECT
Electroconvulsive therapy (ECT) is most often done in a hospital while you are asleep and pain-free (general anesthesia).
ECT is a highly effective treatment for depression, most commonly severe depression. It can be especially helpful for treating depression in patients who:
Less often, ECT is used for conditions such as mania, catatonia, and psychosis that do not improve enough with other treatments.
ECT has received bad press, in part because of its potential for causing memory problems. Since ECT was introduced in the 1930s, the dose of electricity used in the procedure has been decreased significantly. This has greatly reduced the side effects of this procedure, including the side effect of memory loss.
However, ECT can still cause some side effects, including:
Some medical conditions put patients at greater risk for side effects from ECT. Discuss your medical conditions and any concerns with your doctor when deciding whether ECT is right for you.
ECT is one of the safest and most effective treatments for depression that does not respond fully to medication.
After a successful course of ECT, you will receive medications or less frequent ECT to reduce the risk of another depression episode.
Because general anesthesia is used for this procedure, you will be asked not to eat or drink before ECT.
Ask your health care provider whether you should take any daily medications in the morning before ECT.
You will wake up several minutes after ECT and will not remember the treatment.
Some people report mild confusion and headache after ECT. These symptoms should only last for a short while.
Hospital staff will monitor you closely after the procedure.
Smith GE, Rasmussen KG Jr., Cullum CM, Felmlee-Devine MD, Petrides G, Rummans TA, et al. A randomized controlled trial comparing the memory effects of continuation electroconvulsive therapy versus continuation pharmacotherapy: results from the Consortium for Research in ECT (CORE) study. J Clin Psychiatry. 2010;71:185-193.
Tess AV, Smetana GW. Medical evaluation of patients undergoing electroconvulsive therapy. N Engl J Med. 2009;360:1437-1444.