I have been taking care of many severely ill patients with depression and bipolar disorder over the past month, patients hospitalized on the mood disorders service at Johns Hopkins Hospital. Three of these patients have had outstanding responses to ECT, or electroconvulsive therapy, also known as "shock" therapy.
Two of them came in hopeless, intensely miserable, and preoccupied with ending their lives, while the third came in with a depression so severe that it shut her down entirely — she was mute, not able to respond to my questions or even recognize that I was in the room with her.
The three of them all look happy and cheerful now, and feel very grateful for having been made well again.
The challenges that their depressions created in their lives — disruption at work and school, and damaged family and social relationships — now seem surmountable, given their new energy and confidence.
While in the minds of some patients and their families ECT remains scary and controversial, the reality is that it is the most effective treatment for clinical depression, and it is a well-studied, safe medical procedure.
I know it looks cruel and punitive as it is depicted in the 1975 movie "One Flew Over the Cuckoo's Nest," but that's Hollywood — that's fiction — rather than an accurate rendering of ECT as we use it in psychiatry today.
The most important thing to know about ECT is that it works 75 percent to 80 percent of the time in treating people with depression, while any given antidepressant medication works about 60 percent of the time.
As with most of our treatments in psychiatry, we do not know precisely how ECT works, though we have some clues.
We know that ECT causes a seizure — an electrical storm — in the brain, and that this seizure is necessary for ECT to have its therapeutic effect. The seizure seems to reboot the emotional machinery of the brain, in the same way that pressing Ctrl-Alt-Delete on the computer can sometimes provide a fresh start when the digital computer brain is stuck.
ECT has been around longer than any other modern psychiatric treatment — since 1938, when it was developed in Italy. Because it seemed to work, and because there was so little available to treat the severely mentally ill, ECT spread around the world very quickly.
While the treatment was initially used in patients who were awake and alert, and was thus potentially frightening, by the late 1950s it was being applied with modern anesthesia techniques that included both sedating medications to put patients to sleep, and muscle relaxants so that the seizure was physically only very mild. At the same time, anesthesiologists began to monitor the patients' breathing, heart rate and blood pressure to ensure the maximum level of safety.
Treatment is typically administered three times a week over two to four weeks. Each treatment involves electricity being administered to the head for one or a few seconds, which results in a seizure lasting 20-90 seconds. While the seizure is happening in the brain, there is very little evidence of it in the body, because of the muscle relaxant medication, as noted above. The patient is usually awake within a few minutes, groggy for 30-60 minutes, and feeling back to normal after that.