Federal regulators are poised to enact new restrictions on psychiatry’s most controversial treatment, electroconvulsive therapy, which treats people with acute mental illnesses by sending a seizure-inducing jolt of electricity through their brains.
A draft rule under consideration at the Food and Drug Administration would reclassify ECT as safe and effective — and only moderately risky — for adults with severe depression who haven’t responded to medication or other therapies.
It would also impose new requirements: Physicians would have to warn patients that the side effects of ECT, also called electroshock therapy, can include confusion and memory loss, and that its long-term safety is unproven. They’d have to monitor patients’ memory and cognitive skills before and during treatment with sensitive neuropsychological tests.
The FDA would also classify ECT as high-risk for psychiatric conditions other than depression and for children and adolescents.
But psychiatrists warn that a high-risk designation could prompt insurers to stop covering the procedure, and doctors could stop recommending ECT for younger patients and for those with conditions such as schizophrenia, mania associated with bipolar disorder, and the stupor-like state known as catatonia.
“Its use for these indications is widespread, even ubiquitous, and to deny the extensive evidence in support of that is indefensible,” said Dr. Charles Kellner, a professor of psychiatry at the Icahn School of Medicine at Mount Sinai in New York City and chief of the ECT service at Mount Sinai Hospital.
Many patients, however, say that after decades of letting ECT proceed without rigorous evaluation, the FDA should take a much tougher stance. They blame shock therapy for causing severe cognitive and emotional damage and call for tight restrictions or an outright ban.
Deborah Schwartzkopff, for instance, had 66 ECT treatments between 1996 and 2010 to treat depression. The 55-year-old registered nurse from McMinnville, Ore., said the therapy left such gaping holes in her memory that she couldn’t recall her wedding or the birth of her children. Her marriage of 28 years ended “because I couldn’t remember that relationship, and without those memories, I had no emotional connection,” she said.
“Personally, I think ECT should be banned, but at a minimum, we should be testing these devices for their safety and effectiveness,” Schwartzkopff said.
The FDA has not given a timetable for issuing a final rule.
About 100,000 patients, most of them with intractable depression, receive ECT in the United States each year. ECT benefits nearly 80 percent of patients who try it, mostly for the short term, according to a research summary prepared by the FDA.
The treatment calls for patients to get anesthesia to minimize pain and muscle sedatives so they’re less likely to hurt themselves during the seizure. Ultrabrief pulse therapy delivers a fraction of the electricity used in the past. And the electrodes are positioned to minimize side effects.
Precisely why electroshock therapy works is a mystery. Some studies suggest the procedure can stimulate the growth of brain cells and the release of neurotransmitters, activating the brain’s electrical networks. Yet other studies raise the potential for harm, noting, for instance, that ECT can cause tiny hemorrhages or interfere with connections that underlie the brain’s complex circuitry.
The most common complication is memory loss, for both events around the time of the shocks and for past events in the patient’s life. A 2003 review of multiple studies, published in the BMJ, found that a third of patients who had received ECT reported memory loss that lasted six months or more.
Why electroshock therapy works is a mystery. Some studies suggest the procedure can stimulate the growth of brain cells and the release of neuro-transmitters, activating the brain’s electrical networks.
For many patients, however, cognitive issues resolve in a few weeks or months. Natasha Tracey turned to ECT in 2009 after she lost her job at a Seattle software company and became suicidal. At first, her memory loss was so severe, she said, that she couldn’t even remember how to get to the grocery store.
“The street I lived on looked foreign. Things in my apartment — I couldn’t remember how they got there,” said Tracey, 38. “Fortunately, that cleared up and I don’t feel any lasting impact.”
Although ECT didn’t help Tracey, she believes the therapy is an important option for patients who have tried other therapies that haven’t alleviated their suffering.
The FDA has had the authority to regulate medical devices since 1976, but for decades it let ECT machines alone because they’d been in widespread use since the 1950s. In 2009, however, the US Government Accountability Office said it was time for regulators to evaluate all potentially dangerous medical devices.
That meant the FDA could classify ECT as high-risk and require ECT manufacturers to conduct clinical trials proving that their machines were safe and effective. Or they could deem the machines only moderately risky, based on the weight of existing evidence from scientific studies.
After contentious hearings, a FDA advisory panel in 2011 recommended that ECT devices be designated high-risk for all patients.
That recommendation touched off a storm of controversy. And the FDA declined to move on the issue — until now.
In its new draft rule, the agency says it accepts existing evidence of ECT’s efficacy for adults with severe depression and proposes that devices be put in the “moderate risk” category for this group of patients.
“All of us sighed a big sigh of relief,” said Dr. Stephen Seiner, director of the psychiatric neurotherapeutics program at McLean Hospital in Belmont, which performed 10,000 ECT treatments last year — the most in the United States.
But the FDA notes it isn’t similarly convinced by the evidence of ECT’s value for patients under 18 and for those with other psychiatric illnesses. If its proposed rule stands, the agency will require manufacturers of ECT machines to launch clinical trials for these indications. It’s widely expected they will decline to do so because of the costs.
In that event, physicians would still be able to provide ECT “off label” to patients with mania, schizophrenia, catatonia, or other conditions. But insurance companies may refuse to pay. And physicians may worry about the potential for malpractice lawsuits if anything goes wrong.
Labeling ECT “high-risk” for conditions other than depression will have a “chilling effect” on the therapy for thousands of terribly ill patients, most of whom have exhausted all other options, said Dr. William McDonald, a professor of psychiatry at Emory University.
Both the American Psychiatric Association and the National Alliance of Mental Illness, a leading consumer group, take issue with the FDA and say the agency should classify ECT as moderately risky for all conditions for which it is commonly used.
Relapse is common with ECT, and many psychiatrists recommend monthly “maintenance” sessions after an initial round of therapy — usually nine to 12 treatments over the course of three to four weeks.
But the FDA’s proposed rule doesn’t recognize maintenance ECT as having proven value, nor does it designate it moderate risk. Psychiatrists want to change that.
Kate McDonald, 70, of Cambridge, had maintenance therapy for over a year after she received ECT treatment for severe depression at McLean in 2010. Before the treatment, she had lost 40 pounds in five months and was becoming unresponsive and paranoid, she said.
After only a few treatments, she began to respond and is convinced ECT saved her life.
“The memories I’ve lost are almost all related to the time I was sick,” said McDonald, who volunteers for three organizations and says she’s as happy as she’s ever been. “If someone said to me, ‘Kate, you’re [either] going to lose a whole bunch of memories or be depressed the way I was,’” she said, “I would say, ‘Take the memories.’”Follow Judith Graham on Twitter @judith_graham.