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Interviewer: You've already tried mood-balancing medications such as SSRIs and cognitive behavioral therapy to treat obsessive-compulsive disorder or major depressive disorder, and those treatments aren't working. You're not alone. Treatment-resistant OCD and depression aren't uncommon.
Matter of fact, it's estimated 40% to 50% of OCD patients are considered treatment-resistant. And when those first-line treatments don't work, many explore surgical options.
Dr. Ben Shofty is a neurosurgeon from the Clinical Neurosciences Center at the 91麻豆天美直播 and is an expert in surgical treatments for OCD and MDD.
And today, we're going to learn about common surgical treatment options that are providing hope to those with treatment-resistant OCD and depression.
Dr. Shofty, how long does a patient need to be on standard treatments until they're considered treatment-resistant?
Determining Treatment Resistance in Patients
Dr. Shofty: For a patient to be even considered for therapy, they have to have availed all other therapeutic options, especially the non-invasive ones, which mainly consist of drug therapies, SSRIs, SNRIs, tricyclic antidepressants, and behavioral therapies like psychotherapy, exposure and response prevention, and cognitive behavioral therapies.
Interviewer: And how long does somebody have to be on the non-invasive types of treatments before they can be considered nonresponsive? Is that a year or longer than that?
Dr. Shofty: Usually, we are looking at patients who have been suffering from the disease for at least five years.
Effectiveness of Surgical Treatments for OCD and MDD
Interviewer: Before we head to some of the specifics about the three different treatments, some common questions might come to mind when treating OCD and MDD with surgical procedures. First of all, in general, are the treatments effective?
Dr. Shofty: The treatments are super effective. Considering the fact that these patients are usually patients who have failed everything else, I think the treatments are life-changing.
Surgical treatment for OCD has been approved by the FDA for more than 10 years, and recently we had a lot of good high-quality data from around the world, in the United States, Europe, and even Australia, that show about 60% to 70% of patients respond to treatment and their disease improves by roughly 40% to 50%, which is a huge change. I mean, these patients can actually go back to living a relatively normal life.
Interviewer: So, I hear those numbers, and in the real world, that is a significant difference.
Dr. Shofty: That's a huge difference, yeah. That's a life-changing difference. Even some of the patients that we do not classify as responders because they only had 30% improvement in their disease metrics, this is a huge improvement even if they're not officially defined as responders.
Interviewer: And surgery can be kind of scary. Do you find that the patients that come in tend to be a little apprehensive about getting surgery for their condition or are they at a point where not so much because they're just looking for any sort of help?
Dr. Shofty: These patients are usually desperate. I mean, they've exhausted every other therapeutic option out there, including a lot of well-based therapies and some experimental therapies, and this is pretty much their last resort.
I also think over the last 10 to 15 years, there has been such a technological improvement in our ability to perform these surgeries safely. And these are quality-of-life surgeries, right? We're trying to improve these patients' quality of life.
So, these are super safe surgeries. Usually, there's a day of recovery inside the hospital, and then the patients go home the following day and go back to their normal lives pretty soon after the surgery.
Timeline for Seeing Results Post-Surgery
Interviewer: Then after the procedures, and I realized that for each one it might differ and for each person, it probably differs as well, but how long until patients start kind of seeing results?
Dr. Shofty: These are chronic diseases. Patients have been living with them for many years, usually anywhere between 5 and 30, and it takes time for the effect to sort of fully manifest itself. We don't talk about the success of therapy at least until six months have gone by. Usually, the maximal effect is witnessed within a year.
Surgical Treatments for OCD and MDD
Interviewer: When treating OCD and MDD with surgery, generally how do these surgical treatments work?
Dr. Shofty: Our main advancement and the main reason that these therapies are becoming so efficient these days is that we finally understood that it's not a single area of the brain that's not working well, but it's a network, which means that a few, two or maybe more, different areas of the brain are not talking to each other in the way that they should.
And once we've understood that, we can look into a specific patient's disease and the way his brain networks are sort of modulated or altered or working differently, and we can try and target that specific area and that specific place in the brain that is causing this miscommunication.
Once we do that, once we figure that out, the tool that we use doesn't really matter. I mean, we can choose from our sort of toolbox the perfect or the best treatment and sort of tailor the therapy to that individual patient.
Interviewer: That's incredible that you're able to trigger . . . you're able to pinpoint exactly where you need to go and what you need to do in each area.
Dr. Shofty: Yeah. And I think that's the main reason why these therapies are becoming better and better, because our ability to understand the specific patient and the specific patient's disease is becoming better.
Deep Brain Stimulation
Interviewer: And what are some other of the new developments that have allowed this treatment to be so successful?
Dr. Shofty: So, we have a bunch of tools that have become better and better over the last years. One of them is DBS, Deep Brain Stimulation, in which we have newer electrodes and newer devices that can provide smarter and more sophisticated stimulation to the area of the brain that we want to affect.
Interviewer: And Deep Brain Stimulation, I've heard of that before for other conditions.
Dr. Shofty: Yes, it's been around for almost 30 years. It's been used widely for movement disorders such as Parkinson's disease, essential tremors, and others, and it's been FDA-approved for OCD for more than 10 years.
Interviewer: So, Deep Brain Stimulation might be a procedure that would work for one particular patient. What are other options that are in your toolbox that might work for somebody else?
Lesion
Dr. Shofty: One of them is creating a lesion or severing a specific bundle of fibers that sometimes causes severe OCD. We can do that today in a minimally invasive approach using laser fibers and under MRI guidance so we know exactly what we're burning and we are just damaging that specific fiber bundle inside the brain.
Interviewer: And with a tool like that, when you're damaging that specific fiber bundle, are there other side effects that might arise out of that?
Dr. Shofty: The reason that this approach was developed is to minimize the side effects, because you are only hitting the sort of damaged part of the brain that you want to affect. And when people used to do that 20 or 30 years ago, they didn't have all these sophisticated tools and they caused more damage than was probably needed. So, today we actually err on the safer side and do less damage.
And then if we have to enlarge the treatment, we can go back in and do it again. It's minimally invasive. Patients go home the next day. There are barely any incisions, so the recovery is super quick.
Vagus Nerve Stimulation
Interviewer: The third option is Vagus Nerve Stimulation or VNS. How does that work?
Dr. Shofty: So, VNS is an approved therapy for patients with treatment-resistant depression. It is a peripheral neurostimulator. It connects to the vagus nerve, which then carries the electrical stimulation to the brain.
Overcoming Barriers to Pursuing Surgical Options
Interviewer: What is the biggest barrier or reason why somebody doesn't pursue surgical treatment for their OCD or MDD?
Dr. Shofty: So, I think that there's a knowledge gap with our sort of community providers and community psychiatrists who are not always aware of the modern sort of surgeries and therapies that we can offer these patients. They're also not always aware of the recent advances and publications that have shown that these treatments are safe and highly effective for these specific patients.
Interviewer: Yeah. Somebody like you, this is all you pay attention to, so of course you would know about it.
Dr. Shofty: Yeah, exactly. I mean, medicine is so subspecialized today that it's hard to keep track of all the recent advances. But I think there are a lot of recent advances that have been published that show and support these approaches for these patients.
Advocating for Surgical Treatment with Primary Physicians
Interviewer: How should a patient bring this up with their primary physician that they're working with for their OCD or MDD if they're interested in a surgical option and it hasn't been offered?
Dr. Shofty: I think that if you've exhausted all other treatment options, you should bring it up just like that. "I've heard that there's a new psychiatric neurosurgery center at The U and I wanted to consult with them. Is there a chance you can refer me there?"
And we have a quick screening process that allows us to sort of say if the patient is a possible candidate. And for possible candidates, we have a very fast-track assessment process.
The second barrier is to be insurance. I think over the last four or five years, insurance companies have started understanding it's actually cost-effective to approve these surgeries for these patients. Anthem has actually made a significant policy change and has added DBS for OCD as a medical necessity in its guidelines. So, I think it's easier today to get insurance approval for these procedures.
Interviewer: Well, I'd imagine that there's somebody listening who is very interested in a surgical option at this point given the success rate and given the change in somebody's life. Tell me a brief story as we wrap this up of somebody who came in, had the procedure, what they were like, and then . . . what their life was like, and then had the procedure, and then what their life was like after.
Dr. Shofty: So, we've had an OCD patient who was basically house-ridden for more than three years. Every time he needed to go out of his house and come back, it used to take anywhere between four and six hours to go back from the front door to the living room because he had to do so many rituals and so many compulsions. We've operated on him successfully, and six months later, he's back to work. He still has OCD, but he manages it.
One of the good things about these therapies is that they allow patients to respond to medical treatment and to psychological treatments such as exposure and response prevention, which they did not respond to before surgery. So, it's not only the effect of surgery, but it's the effect that it enables them to respond to other types of therapies.
And a lot of our patients have a similar story. They just went back to living a normal life with the disease and not living just under the disease.
updated: April 9, 2024
originally published: November 18, 2022