Electroconvulsive therapy (ECT) uses an electric current to treat depression and some other mental illnesses.
During ECT, the electric current triggers a seizure in the brain. Doctors believe that the seizure activity may help the brain "rewire" itself, which helps relieve symptoms. ECT is generally safe and effective.
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 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.
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 medicines in the morning before ECT.
After a successful course of ECT, you will receive medicines or less frequent ECT to reduce the risk of another depression episode.
Some people report mild confusion and headache after ECT. These symptoms should only last for a short while.
Shock treatment; Shock therapy; ECT
Welch CA. Electroconvulsive therapy. In: Stern TA, Rosenbaum JF, Fava M, et al., eds. Massachusetts General Hospital Comprehensive Clinical Psychiatry. 1st ed. Philadelphia, PA: Mosby Elsevier; 2008:chap 45.
Updated by: Timothy Rogge, MD, Medical Director, Family Medical Psychiatry Center, Kirkland, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.
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