Imagine a treatment for severe depression that could potentially leave you with more problems than it solves. That's the unsettling reality facing electroconvulsive therapy (ECT), a procedure some experts now believe may carry a far greater risk of adverse effects than previously recognized. A recent paper is boldly calling for a halt to ECT, pending much more thorough and rigorous research. Is this a necessary caution, or an overreaction? Let's dive into the details.
While the public is generally aware that short-term and long-term memory loss can be a side effect of ECT, this new research shines a light on a staggering 25 additional potential problems. These range from cardiovascular issues to persistent fatigue and even "emotional blunting," a concerning term suggesting a diminished capacity to experience feelings. But here's where it gets controversial: how reliable is this evidence?
For those unfamiliar, ECT involves sending controlled electrical currents through the brain while the patient is under general anesthesia. The goal is to induce a seizure, with the belief that this can somehow reset brain chemistry and alleviate severe mental illness. Typically, a patient will undergo a series of 6 to 12 treatments. In the UK alone, approximately 2,500 people receive ECT each year, primarily for conditions like treatment-resistant depression (depression that hasn't responded to other therapies), schizophrenia, bipolar disorder, and catatonia.
The research in question, published in the International Journal of Mental Health, is based on a survey of 747 ECT patients and 201 of their relatives and friends. And this is the part most people miss: because it's a survey, it can only show potential correlations, not definitive proof of cause-and-effect. The study author, Professor John Read, a psychology professor at the University of East London, acknowledges this limitation. However, he argues that the challenges inherent in researching ECT make such surveys a valuable, albeit imperfect, source of information. He states, "Given that we still don’t know if ECT is more effective than placebo, these startling new findings make it even more urgent that it be suspended pending a thorough investigation into both safety and efficacy."
Professor Read goes even further, suggesting that if ECT were a new treatment seeking approval today, it would likely fail to meet the stringent requirements of regulatory bodies like the MHRA in the UK or the FDA in the USA. "The research is so flawed and inconclusive that ECT would have absolutely no chance of obtaining MHRA approval in the UK, or FDA approval in the USA, if it were introduced today.”
The survey results paint a concerning picture. Nearly a quarter (22.9%) of participants reported heart problems, such as arrhythmia, following ECT. Over half (53.9%) experienced recurring headaches. A significant majority – more than three-quarters (76.4%) – reported emotional blunting. Furthermore, some side effects appeared to be linked to memory loss, contributing to relationship problems, difficulties with navigation, and a reduced vocabulary.
Sue Cunliffe's story offers a stark example of the potential consequences. She received ECT in 2004 for severe depression and describes the devastating impact it had on her life. "A week before ECT I was on a running machine, playing badminton and able to write poetry, and six weeks later I’m falling down stairs, bruised,” she recounts. She reports lasting issues such as slurred speech, shaking hands, impaired balance, difficulty recognizing faces, problems with basic math, and impaired reading and writing. She attributes these problems, along with persistent brain fog and fatigue, to the ECT treatments, forcing her to give up her career as a doctor and severely limit her daily activities. Her experience highlights the very real and potentially life-altering consequences that some patients associate with ECT.
It's crucial to understand that ECT remains a deeply divisive treatment within the mental health community. While some patients report significant improvements in their symptoms, the precise mechanisms by which ECT affects the brain are still not fully understood. This lack of clarity, coupled with the potential for serious side effects, fuels the ongoing debate.
However, some professionals strongly defend the use of ECT. Professor Tania Gergel, director of research at Bipolar UK and an honorary psychiatry professor at University College London, argues that there is "no evidence to substantiate claims that modern ECT carries any major risk to physical health or that it causes long-term brain damage and permanent deterioration of cognitive functioning." She acknowledges that ECT is not a "complete cure" and that there have been instances of misuse, but maintains that it can be a valuable tool for managing acute symptoms and enabling patients to engage with other therapeutic interventions. Professor Gergel, who has received ECT herself for treatment-resistant bipolar disorder, emphasizes its importance in managing her condition. She also acknowledges that some people, including herself, experience autobiographical memory loss and gaps related to the treatment period, calling for more research to minimize these side effects.
Professor George Kirov from Cardiff University echoes this sentiment, describing ECT as "highly effective" and even "life-changing" for individuals with severe depression. He estimates that 60% of patients experience improvements in their symptoms. Professor Kirov believes that stigma surrounding ECT has led to its under-utilization in the UK, while it is more commonly used in some other northern European countries. He further asserts that there is "a very wide and robust evidence that it is effective, beyond the early sham-controlled trials," citing meta-analyses that show ECT outperforming antidepressants, TMS (transcranial magnetic stimulation), tDCS (transcranial direct-current stimulation), and other treatments. He dismisses calls for more placebo-controlled trials as "not supported by the scientific community."
Lucy Johnstone, a clinical psychologist and member of the UK ECT Improving Standards Campaign Group, raises additional concerns. She points out that many people are unaware that ECT is still practiced and that it is disproportionately administered to older women, with a significant number receiving it against their will. Johnstone also highlights the potential for underlying trauma, suggesting that "a significant proportion" of ECT patients are victims of domestic abuse, a factor she believes is often overlooked by mental health professionals. She suggests that ECT can be seen as a last resort when other approaches, such as medication, have failed: "Pills won’t help, so it quickly gets to the point of: what do we try next? That’s when ECT gets raised."
The National Institute for Health and Care Excellence (NICE), which provides guidelines for healthcare professionals in the UK, states that ECT should only be considered for acute treatment of severe, life-threatening depression when a rapid response is required, when the patient prefers it based on past experience, or when other treatments have failed. NICE also emphasizes the importance of informing patients about the risks and benefits of ECT and requires that clinics be accredited and record data on delivery and outcomes.
So, where do you stand on this complex issue? Is ECT a valuable tool for treating severe mental illness, or is it a potentially harmful procedure that needs greater scrutiny and regulation? Given the conflicting opinions and the potential for serious side effects, what further research do you think is needed to ensure patient safety and informed consent? Should ECT be suspended until more conclusive evidence is available, or would that deprive patients of a potentially life-saving treatment? Share your thoughts and experiences in the comments below. This is a discussion we all need to have.
