What happens in my Vagus stays in my Vagus

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Registered: 03-14-2011
What happens in my Vagus stays in my Vagus
Tue, 09-03-2013 - 2:40pm

What happens in my Vagus stays in my Vagus

Get away from my neck, you medical-device vampires!

    A highly unpleasant spotlight, which turned me into a Vagus showgirl for five years, has finally been turned off. I just completed a Cyberonics, Inc., clinical trial of the Vagus Nerve Stimulator, to assess its effectiveness in helping those who suffer from treatment-resistant depression. It was a ridiculous, scandalous experience.
    I don't trust Big Pharma, and I don't trust the multibillion-dollar medical device industry. My cynicism was vindicated by the bizarre combination of incompetence and ruthlessness that characterized this study.
    In trial after trial, this device has shown itself to have extremely limited value. But Cyberonics (which sounds like a sci-fi cabal that unleashes evil robots), is determined to keep trying until it wears down its opponents and qualifies for reimbursement, so it can achieve its dream: a fabulous financial windfall. 

The wire, which coils around the nerve, becomes thoroughly enmeshed in the tissue.

     I am thrilled to report that Medicare, Medicaid and the nation's insurance companies are holding their ground, finding Cyberonics' latest clinical trial to be as underwhelming as all the others. They are refusing -- in virtually every case -- to pay for the device, the surgery, and the lifetime of after-care that is required. 
    The U.S. Centers for Medicare and Medicaid Services (CMS) is continuing to refuse reimbursement, despite the fact that the Food and Drug Administration (FDA) -- in its laziness, inconsistency and vulnerability to pressure -- half-heartedly approved the VNS for treatment-resistant depression nearly 10 years ago. That decision has inspired disbelief and ridicule ever since. I have been informed that the refusal of Medicare and Medicaid to pay for an FDA-approved device is unprecedented.
    Thus, the Cyberonics people are still conducting studies -- as if their device is going to evolve spontaneously into something worthwhile, if they just keep cutting people's necks open and putting it in. I believe this is what is known as "magical thinking."

Note how the lead is clamped to the vagus nerve in the bottom right view. Comfy!     

In this article, I am going to describe my personal experience as a participant in the most recent trial, beginning in 2008. I will also address the dismal results of past studies (whose weaknesses have been replicated in subsequent studies); the outraged reaction of the scientific community to the FDA's approval of the device in 2005; and the shameless persistence of Cyberonics in pressing for reimbursement, despite the well-documented likelihood that the $30,000 to $70,000 cost per patient, just for the initial implant, would be a complete waste.  I will also detail the substantial dangers and side effects of this product.

    But first, I will chronicle the traumatic loss of privacy that my involvement in this clinical trial required. It was a violation that has had an ongoing effect on me. I initially refused to sign on the dotted line, because I was distressed by the "laying bare" of my mind and my life that was being demanded by Cyberonics.  I eventually relented, as a favor to a friend who was involved in administering the study at one of the sites, and who was desperate to cobble together an adequate sample. 
    I vehemently declined, though, to have the VNS appliance implanted in me (and not just because they expected ME to pay the $30,000 cost), so I was enrolled in the control group. All of us -- two groups of severely depressed patients -- had to essentially turn everything about ourselves over to this enterprise. 
    It made me sick. It left me with an ongoing sense of vulnerability. I lost something that I can never retrieve. I am "out there," instead of "in here." For better or worse, this blog -- which I launched about midway through the study -- has often been perhaps overly personal. Thanks to that stupid study, I feel that I have nothing left to hide.
    We should not give up the right to hide -- particularly not for the purpose of enhancing the profitability of a corporation.

    Even though I didn't have my neck torn open and have a foreign object jammed into me, I was required to authorize the release of a lifetime of medical and psychiatric records, medical insurance records ( to reveal my "health-care utilization"), hospital records, records from individual doctors (including, Cyberonics specified, my gynecologist), and all of the personal insights gleaned about me during the study. The consent form acknowledged that the probing of study personnel "may upset you and worsen your depression."
Don't you love being probed by legal aliens?
     "Every reasonable effort will be made to keep the information private," Cyberonics assured study participants in writing.
     I was repeatedly assured that my privacy would be honored, that I would be "nothing but a number," and that none of my information would be "personally identifiable." 
    That was patently untrue, as the fine print in the lengthy Cyberonics consent form acknowledged:
      The information we share with others may include information that directly identifies you. The Food and Drug Administration (FDA), will have access. There are other federal agencies that may need to view the data. 
      The study sponsor, its representatives and contractors, regulatory authorities and other supervising bodies may look at all your medical information.
      Tests or examinations that you will be required to  take may identify you because they may contain your name, address, telephone number, date of birth, social security number, race or ethnic origin, height, weight or other unique identifiers.
      Once information is disclosed to outside groups, this information may no longer be covered by the federal privacy protections. 
      If your protected health information is disclosed to a recipient who is not a "covered entity," your protected health information may no longer be protected by federal or state law and may be subject to re-disclosure by the recipient. 
      If you revoke this authorization, we will not be able to collect new information about you, and you will be withdrawn from the research study. However, we can continue to use information we have already started to use in our research, as needed to maintain the integrity of the research.
      Your information may be used by Cyberonics  in connection with the sales and marketing of its VNS Therapy System. 
      This authorization does not have an expiration date.
    Before the trial had even formally begun, I inadvertently discovered that a description of my "personally identifiable" sexual history had been shared among study personnel, including a secretary. Study materials in general were handled in a very cavalier fashion for the five-year duration, as other patients have noted.
    My records, dating back 45 years to the present, contain vivid accounts of many disturbing experiences, thought processes and phases of my life, including graphic details of sexual victimization, substance abuse, eating disorders, and colorful fantasies about, among other things, committing acts of political sabotage, and killing myself.

An Austrian artist group expressed disdain for male-dominated culture, psychiatry and sexuality, with VNS as a target.
    "Your responses to questions will be collected by Cyberonics and combined in a computer database with the responses of other patients," the company's consent form explained. "This information may be kept by Cyberonics long after your participation in the Registry ends and for an indefinite period of time. Cyberonics may permit physicians, researchers and depression support organizations to use this database to evaluate therapies for treatment-resistant depression."
    Depression support organizations? Don't they host "fun runs" and have web sites that provide message boards and lists of resources? They don't have a right to my life story! 
    My information would also be made available to personnel at the university from which I graduated.
    And I don't want Cyberonics using me to fuel its propaganda machine, spreading the word at all levels of the Depression Industry that its device should be sold to vulnerable patients. But of course, that's exactly what it's doing. 
    And it's doing a masterful job of generating favorable coverage on many web sites, medical journals and in the mass media, based upon study data that informed experts find "astonishingly weak."
My secrets, kept forever, in a vault that has a big welcome mat.     

So they were collecting my very personal history, not just to be used for one study and destroyed, but to be kept in perpetuity for others to use. I picture a big vault, in which my nightmares repose, ready to be serve the purposes of whomever might come along, to achieve a goal I can't even imagine.  

    Instead of its pathetically weak reassurance that, "Every reasonable effort will be made to keep the information private," why didn't the company make a forceful guarantee: "Cyberonics pledges that your privacy will be fully protected, and it has in place a protocol that makes it impossible for any personally identifiable information about you to be accessed by its own personnel, or by anyone else. Cyberonics agrees to be legally and financially liable for any breach. Any injured party will be eligible for both punitive and compensatory damages."
(Just kidding)     

The firm offers no such guarantee, and in fact it guarantees quite the opposite, as its consent form made disgracefully clear. 
    No wonder Cyberonics has so much trouble finding anyone to participate in its clinical trials. This is ridiculous! Does the firm always rely on study administrators using their personal friends, like me, who grudgingly agree to be involved in such a debacle?
    I haven't trusted the United States government to respect my privacy since the 1960s. Now I know not to expect a faceless corporation with no accountability, no loyalty and no evident integrity to do so. 
    I jokingly told one doctor involved with the study that a laptop containing all of our information would probably be stolen during the study, and that is exactly what happened, about two years into the process.
    In order to sustain my commitment to participate, I had to repress my humiliation, even more after the theft. It was hard on me.
    Every few months, for five years, I had to answer very personal questions, on detailed forms, and in separate interviews with a psychiatrist and a psychologist. By personal, I mean everything from "feelings of worthlessness" and "obsessive thoughts" to the amount of vaginal lubrication I was producing. 
    All of this, and all my other records, are now -- and forever will be -- the property of Cyberonics, Inc.

I'm stimulated all right -- by indignation.

    I lost an aspect of precious autonomy and discretion for the benefit of a piece-of-crap device made by a haughty, hapless profiteer.
    Even the FDA, which inexplicably approved the VNS device, was so lukewarm in its announcement, it could reasonably be regarded as a repudiation of Cyberonics. It began by referring to the initial, and best-designed, round of trials, in which VNS therapy was shown to be no better than a placebo. The federal regulator stated: 
    Based on the results of a clinical study of over 200 patients conducted in the United States, during the first 3 months of therapy, patients who had the device implanted and turned on did not show any significant advantage in response compared to patients in whom the "sham" device was implanted but not turned on. At 1 year, approximately 2 or 3 out of every 10 subjects had a clinically significant improvement in symptoms of depression.....and continued to have a similar degree of response through 2 years.
     The remainder of the patients, however, had no improvement in symptoms, and some actually got worse. This therapy is intended to be given along with other traditional therapies, such as medications and ECT, and patients should not expect to discontinue these other treatments, even with the device in place. Patients will require regular visits to their physicians for adjustments to their device and other treatments. 
  By "clinically significant," the FDA meant at least a 50 percent improvement in patients' severe, debilitating depressive symptoms. And 70-80 percent did not even get that. 
    Cyberonics was forced to acknowledge that, "less than one in three or one in four patients (depending on the rating scale used) appeared to respond to VNS therapy."
    Much has been reported in recent years about the unsatisfactory performance of antidepressant medications. But even they were required to reach a much higher benchmark of proof before gaining FDA approval.
    Cyberonics' marketing material claims that "VNS therapy delivers long-term benefits that improve over time to patients who have not responded well to other treatment options." The two-year data that it and the FDA cite do not constitute a long-term benefit, in my opinion.
    To make the whole thing even less appealing, Cyberonics admits, "At present, doctors have no way to predict which patients will respond to VNS therapy." 
    So just put the device in everyone with difficult-to-treat depression, and have the American public pay hundreds of millions of dollars for it: That's what Cyberonics is seeking. 
    The company shouldn't expect doctors to "predict which patients will respond."  That's its job. 
    After extensive investigation, Public Citizen Inc., a nonprofit watchdog group created by Ralph Nader in 1971, submitted testimony to the FDA, characterizing the federal agency's approval of VNS for treatment-resistant depression as "scientifically meritless."
    In fact a Senate subcommittee found that one official had overruled all 20 FDA staff members, who asserted that data submitted by the company did not meet reasonable standards for safety and effectiveness.
Ralph Nader: my hero, from the 1960s to forever.

     "The post-approval data on VNS ... are largely irrelevant to the basic issue surrounding VNS: Does the device actually work?" Public Citzen said. "The history of the approval of this device remains an embarrassment to the FDA." 
    Public Citizen added that an official involved in the approval process had described it as “very unusual, emotional, not data-driven.” 
    Public Citizen continued, with rousing conviction: "Even the full-court press of misleading advertising, misleading training sessions in its use for physicians, misleading presentations at the American Psychiatric Association annual meeting, misuse of case managers to help secure reimbursement for individual patients, abuse of FDA employees, misleading clinical trial write-ups, ghost-written review articles and company-generated favorable local media coverage cannot disguise what is lacking and what insurers are increasingly realizing: There are no convincing data of the device’s effectiveness, let alone that it is 'reasonable and necessary'."  

    I have kept tabs on the FDA's controversial, chaotic approval process since my work as a New York consumer advocate in the 1970s. It has given the green light to countless drugs and devices that have turned out to be neither safe nor effective, but these products have always been granted reimbursement status. 
    A statement supporting Medicare's denial, published in Current Opinions in Psychiatry, said, "...given the invasive nature of vagal nerve stimulation and potential side effects, further research is urgently required. The scientific evidence is considered to be insufficient to permit conclusions concerning the effect of this technology on major depression." 

    The insurance industry's position can be summed up thusly: "There is no compelling evidence to support the efficacy of this device or to define the patient population that might be helped by it."
The "cuff" that grips the vagus nerve.     

Blue Cross echoed the opinions of many health-care analysts in its refusal to provide reimbursement. Vagus nerve stimulation for treatment-resistant depression met only one of the five assessment criteria established by Blue Cross's highly regarded Technology Evaluation Center (TEC)

    TEC determined, “"Studies examining VNS for the treatment of depression are limited, and all data concerning clinical outcomes come from company-sponsored clinical studies....Given our concerns about the quality of the observational data, these results did not provide strong evidence for the effectiveness of VNS therapy. "
   The insurance giant was highly critical of Cyberonics' clinical trials for their limited size and scope. "Patient selection was a concern for all of the studies," it asserted.
   The same studies "have been published in peer-reviewed journals, almost unchanged from the documents (submitted to) the FDA," Blue Cross noted, alluding to the corruption of these journals. "New publications simply analyze the same data in various ways."
    Overall, "the available scientific evidence does not demonstrate efficacy of VNS for treatment-resistant depression," Blue Cross concluded, mentioning that "results from the only double-blind trial in a multicenter European study were considered to be inconclusive."

I know. I know: It looks like fun. But it's not.

    In many of my blog posts, I have described the callous greed of the health-care industry. Medical-device makers fit right in with this unsavory crowd. Their well-funded lobbying efforts have secured for them a mind-boggling exemption from liability. The "doctrine of pre-emption" relieves them of any financial obligation if one of their devices injures, disables, or kills a patient (http://kronstantinople.blogspot.com/2012/07/heartless.html).
    Cyberonics, as the Public Citizen investigation dramatically revealed, is a Bad Boy among bad boys.
    It is plotting to to expand the use of VNS in Alzheimer's disease, anxiety, chronic migraine headaches, and bulimia, even as its reputation is being banged around by scandals that tarnish its credibility in both the stock market and the medical world.
     On Nov. 17, 2008, the House Committee on Energy and Commerce launched an investigation into whether senior managers at the Center for Devices and Radiological Health "knowingly corrupted the scientific review process and approved or cleared medical device applications in gross violation" of the law and agency regulations. 
    According to the National Whistleblowers Center, a substantial matter of CDRH staff dissent had been publicized in 2006 relating to the 2005 pre-marketing approval of Cyberonics' VNS device for treatment-resistant depression. In that case, a Senate Finance Committee investigation, including review of internal documents and interviews with FDA staff, found that Center Director Schultz approved Cyberonics'  product after overruling more than 20 FDA staff members, mentioned previously, who had concluded that data submitted by the company did not meet reasonable standards for safety and effectiveness. 
     (More generally, a 2006 survey of nearly 1,000 FDA scientists found that only 47% felt that they could openly express concerns within the agency about public health without fear of retaliation, the Center added.)
      The plot thickened as some material provided on the FDA’s website for this device was redacted. 
     A New Jersey federal court unsealed a complaint in 2012 alleging Cyberonics Inc. violated the False Claims Act in its campaign to convince regulators and doctors that its nerve-stimulating therapy system could treat severe depression, costing states' insurance $75 million, which was spent during the period between FDA approval and CMS rejection.

    TheStreetSweeper.com, which "uncovers the dirty little secrets every investor needs to know," and is often quoted in the Wall Street Journal, presented an expose by Infinitalis in January 2013  containing "very serious allegations of unscrupulous and potentially fraudulent activity on the part of NASDAQ-listed Cyberonics, Inc." 
     In its report, TheStreetSweeper presented "the culmination of nearly two months of research into Cyberonics. The more we dug, the more we found red flags and skepticism in the scientific community as to the efficacy of VNS." It linked to 11 research papers, including one in the New England Journal of Medicine, that cast doubt on VNS, and were sourced from academia, government and private enterprise.
    "What we found was troubling," TheStreetSweeper reported. "The efficacy of VNS therapy as measured scientifically in randomized trials was very weak, and its approval as a treatment was met with unusual controversy."
    The article went on to quote award-winning mental health journalist John Mcmanamy's views of the clinical trials. Mcmanamy noted that Cyberonics' president had said that VNS was used on "hopeless, desperate, suicidal patients, not expected to respond." 

Hopeless, desperate, suicidal. I can relate..     

"Unfortunately, the patients lived up to expectations," Mcmanamy wrote. "Ordinarily, a study with this design and these results never would have made it past the FDA doorman."
    The most recent clinical trials didn't change things, except for Cyberonics' stock price.

    A Reuters dispatch on May 28, 2013 reported, "The decision by the U.S. Centers for Medicare and Medicaid Services (CMS) not to provide reimbursement coverage for Cyberonics'  Vagus Nerve Stimulation (VNS) therapy sparked a selloff in the company's shares, and dimmed hopes of wider sales of its most important product. Cyberonics stock price plunged 10 percent in extended trade." (Even so, the firm's domestic-product revenues "reached a record high in the last quarter on the back of new patients and higher replacement activity," according to a company press release.)
    On the back, indeed. No wonder we have so much back pain in this country. We are hauling around the health-care industry's unconscionable costs, and they just keep going up.

    As if Cyberonics' bad faith weren't already obvious enough, it flamboyantly announced in 2006 an "unprecedented" lifetime reimbursement guarantee "to honor" hundreds of patients who had participated in its FDA clinical trials and required ongoing care, maintenance and regular replacement of the battery-powered device. By this time, their devices needed to be replaced, and surgeons needed to be paid.
    The company promptly got itself a new CEO and reneged on this offer, enraging those who were left with a lifetime of medical bills -- up to hundreds of thousands of dollars for some patients -- that they would have to pay out of pocket. What percentage could not find a way to finance the replacement procedure? No one is saying. I know that second mortgages have been taken out and 401-ks have been emptied out, thanks to Cyberonics' indifference.
    When I agreed to participate in the clinical trial, the issue of ongoing care for those who had the device implanted never occurred to me. I guess we all implicitly assumed that study volunteers would be taken care of -- that they wouldn't just be "thrown under the bus."

Cyberonics volunteers became corporate roadkill.
    In an August 13, 2013, email to Herbert Stein, whose wife was a volunteer in the earliest trials, Cyberonics president Dan Moore blamed a federal anti-kickback statute for the company's reversal on reimbursement -- a claim that is absurd to anyone who has read the statute, the FDA's protocols and Cyberonics own literature. Moore added that the firm never thought it would have to pay the entire cost of the volunteers' medical bills -- it had expected federal assistance. 
    His flaccid protestations about the weighty problem of helping these patients are appalling, particularly given that Cyberonics is a very profitable firm. 
    Stein says his wife and the other study subjects ave the victims of a "very stressful and immoral Catch-22."
    "We have implanted devices that are therapeutic, with no one willing to care, pay or giving a damn for these patients," Stein told Brown in their email exchange.  
    Stein's wife, and all the others who responded well to the implant, face a desperate situation: Come up with lots of money every several years, or be plunged back into a life of mental anguish.
Beautiful Joyce Stein suffered debilitating depression for 36 years before getting VNS in 1999.
    Stein has drafted an online petition, which I gladly signed, that would require ongoing care for all study patients in FDA clinical trials. He is expecting a decision soon from CMS on a "compassionate use" exception that would provide funding for those who were implanted with the VNS device and obtained substantial benefit.
     Since we obviously can't rely upon corporate America to treat clinical-trial subjects with dignity and fairness, the FDA should impose stringent rules for the protection of patients, who are being grossly exploited under the current regime. 
    I certainly felt exploited by the process as well, although the cost to me was psychological rather than financial. We who participated were mere cogs in Cyberonics' self-serving machine. We were as dispensable and disposable as Kleenex. It is disgraceful.
    Given how few people respond to this extremely expensive treatment, it's not surprising that the scientific community is baffled by FDA approval, and it's certainly not surprising that private and public insurers are refusing reimbursement. 
    Cyberonics isn't giving up. Company officials seem convinced that if they sustain their lobbying long enough, they will win. If they do, they will have insinuated themselves into one of the most lucrative device markets in the world -- a world filled with very sad people -- and Cyberonics will be very happy. Maybe all the company's Top Dogs will go to Vegas and get their minds blown, no implanted gadget required. Martinis are delicious, especially when they have blondes sitting in them:

    The Cyberonics trials have attempted to prove that the VNS device is effective against refractory, or treatment-resistant, depression. 
    According to the company's web site, in 1997, Cyberonics received FDA approval "to market VNS therapy for the treatment of epilepsy. Since that time, more than 32,000 patients worldwide have been implanted with the device. The remarkable success of VNS Therapy in the treatment of epilepsy has served as a platform for continued innovation."
   This is a typical example of the company's deceptive tactics, for which it has repeatedly been criticized. VNS therapy was actually approved for use in a subset of refractory patients, not as a general treatment for epilepsy, and it has not been "a remarkable success." According to a 2011 meta-analysis in the Journal of Neurosurgery, "disagreement regarding the utility of VNS in epilepsy continues because of the variability in benefit reported across clinical studies. (At best), seizures were reduced by 50 percent or more in approximately 50 percent of the patients. A quarter of patients do not receive any benefit from therapy."
    On July 15, 2005 , after seven years of "extensive study and clinical trials," VNS therapy was approved by the FDA as a long-term adjunctive treatment for treatment-resistant depression.
    Cyberonics' trials have been characterized from the start as being too small, poorly designed, sloppily managed and ultimately misleading.
    As usual, the most recent trial was guilty of enrolling people who either hadn't met the standards for "treatment resistance" (having failed to get sustained relief from at least four drugs) (it used to be six) (but sometimes it was two), or they were so hopelessly ill that one consultant said, "They are simply lost. Nothing we have can help them."
    I don't see how people who are that impaired could even have provided informed consent to participate in this trial, and I am disgusted that they were put through it. 
    One mental-health professional told me that this trial was the most stressful experience of his career. "We were not prepared for the eviscerating impact of coping with such deeply disturbed and inconsolable people," he said. "I never thought I'd say this, but I'm ready to retire."
    But this is the population for which VNS claimed to provide a solution.
    I was asked to submit to the surgery, even though I suffer from three conditions that should have excluded me, according to Cyberonics' own patient manual.
     As I have described, the trial required participants to "bare all" in its intense scrutiny of our psyches, but we were not people in this context -- we were data. Our years of responses to hundreds of questions were merely paperwork, which would form a stack that Cyberonics would point to as "documentation." It was a charade of going through the motions -- from the executive Cyberonics level down to the local clinical trial level -- to amass unwieldy stacks of information that could be tweaked somehow to seduce CMS into changing its mind. 
    Having suffered from depression and related psychiatric issues for my entire adult life, I was an ideal candidate from Cyberonics' perspective.
I was sad. So was my little ego, down below.     

    But I had a different perspective. Why did I reject the opportunity to try a medical technology that I was told could  bestow upon me a whole new life of joy and functionality? 

    The VNS appliance is very invasive. The pacemaker-like implant in the chest didn't bother me particularly, but the wire lead, which is firmly attached along the vagus nerve, up the neck, generally can't be removed, no matter what side effects it is producing. The tissues surrounding it become so enmeshed in the lead that it would be life-threatening to extract it, I was told. I couldn't tolerate this.
    The thought of having a major component of my central nervous system in the grips of that coil made me feel ill and strangely claustrophobic. I told the study coordinator, "I can imagine freaking out, and trying to rip it out of my neck with my fingernails."
    He responded, "That's happened."
     Moreover, I was told that I would have to pay $30,000 of my own money to have this controversial, unproven device implanted.
What kind of fool do you think I am?

   Are you kidding me? People don't pay to be a part of clinical trials -- if anything, they are paid.  Cyberonics was conducting the trial for its own financial benefit, yet it expected me to pay for taking a major health risk, and devoting a lot of time subjecting myself to its repeated, probing scrutiny. 
    Even if data from previous studies had indicated that I had a good chance of experiencing substantial benefit from the implantation of the VNS, I would not have paid. It was their trial, and it was their financial responsibility. But the data were not impressive. Simply put: I was not likely to benefit. No one was -- or is -- likely to, which is why Cyberonics has not been able to get reimbursement status.
    The overall failure of VNS to treat refractory depression can overshadow the fact that, for a minority of patients, the device can be "transformative," according to one study coordinator. "In a few cases, it has been quite unbelievable," he said.
    My online outreach to those who have had experiences with Cyberonics' clinical trials was very rewarding.
    Several people who had been crippled and tortured by depression for many years -- and who had tried everything, including electroconvulsive therapy (ECT) to find relief -- responded in a "miraculous" way to vagus nerve stimulation. It had put them in complete remission, giving them the gift of  pleasurable and productive lives. 

    Even they had been dismayed, though, at the way in which the studies had been conducted. "Unprofessional" is a word that was used a number of times. One man, who worked in administering a trial, described the process as "improvisational," admitting that, "We were flying by the seat of our pants. The whole thing was always on the verge of falling apart. Cyberonics had a slapdash approach."
    There were frantic efforts being made, apparently, to find and retain enough patients to constitute a scientifically valid study. The turnover during the trials detracted significantly from their credibility. It was as if Cyberonics had never conducted a clinical trial, and had no idea what it was doing, I was told.
     A woman who, like me, was in a control group, said, "I didn't know half the time if it was still being done. No one (at the clinic) seemed to even know if Cyberonics was serious about keeping it going."
    I felt the same way. The process seemed haphazard and half-hearted.

     Given the dire warnings enumerated below, it's easy to see why it was hard to find study participants, despite the fact that there are millions of people in the U.S. with treatment-resistant depression.
The whole thing seemed like a pain in the neck.
     All of us who take medications realize that we aren't likely to experience all -- or even most -- of the possible side effects that are listed on drug handouts. But if a drug's effects are too problematic, all we have to do is stop taking it. 
    The vagus nerve stimulator will alter your body forever. And instead of paying out $20 or $40 dollars to try a drug, you must pay tens of thousands of dollars to have a vagus nerve stimulator implanted. If the device is helping you, and you choose to keep it turned on, you must have it checked regularly, which can cost up to $1,400 per visit. And the device must be surgically replaced every five to seven years, at full price, including costs for doctors, anesthesiologists and surgical center fees. Moreover, VNS is explicitly an "adjunctive" therapy, which means the patient is expected to continue taking pharmaceuticals. This inevitably means side effects on top of side effects.
    When I was approached and asked to participate in the trial, the medical problems listed below were the possible complications I was told I must agree in writing to accept. The most common side effects reported during VNS Therapy are voice alteration (often described as hoarseness), discomfort in the neck (typically mild pain or a tingling sensation), cough, shortness of breath, difficulty swallowing, and a feeling of tightness in the throat. These effects are particularly aversive to me. I'm afraid I'd have a panic response. Other possible side effects are:

Possible Surgery or Treatment-Related Problems

Abnormal dreams
Abnormal thinking




Belching (eructation)

Chest pain




Difficulty sleeping

Difficulty swallowing


Dry mouth

Emotional lability

Eye pain

Fainting (syncope)

Fast heart beat (tachycardia)


Flu syndrome/viral infection

Flushing (vasodilatation)



Heart palpitations



High blood pressure (hypertension)
Inability to pass urine

Incision pain (36 percent)

Incision site reaction

Increased appetite

Increased cough (24 percent)

Increased tension of the muscles

Infection at the surgical site

Inflammation of colon (colitis)          

Inflammation of lining in nose (rhinitis)

Inflammation of the throat (pharyngitis)

Joint pain (arthralgia)

Laryngeal inflammation

Loss of memory (amnesia)

Low blood pressure (hypotension)

Low blood pressure upon standing (postural hypotension)


Muscle ache (myalgia)

Muscle weakness (myasthenia)

Neck pain


Other reactions around the device generator or leads


Pain around the device generator or leads (29 percent)


Shortness of breath (14 percent)

Skin rash

Stoppage of menstrual periods (Amenorrhea)

Tightness in throat 
Weight gain/loss 
 Tingling (paresthesia)
Vibrating sound heard during respiration (stridor)

Vocal cord paralysis

Voice alteration (59 percent)
 Voice alteration was particularly likely to persist for longer than 90 days. Implantation of the Lead may cause nerve constriction (squeezing of the nerve).
    Vagus nerve damage, if it occurs, can cause vocal cord paralysis. It can also cause Horner's syndrome. Horner's syndrome has symptoms that involve the eye and eyelid, and an absence of sweating on one side of the face. Nerve damage during surgery may also occur. It could result in permanent hoarseness, difficulty in swallowing, or gastrointestinal problems.
Possible Depression-Related Problems

Appetite change

Concentration problems

Emergence of mania

Fatigue, loss of energy, heavy feeling

Feeling helpless or hopeless or worthless
 Feelings of guilt

Feelings of unreality

Sensitivity to how others treat you

Sleep problems

Suicide or thoughts of suicide

Weight change

 Mechanical Problems

     The following problems could occur:
     The Pulse Generator could malfunction and not deliver stimulation or deliver too
much stimulation.
    The Pulse Generator or Bipolar Lead could move or push through the skin.
    The battery in the Pulse Generator could become depleted, (reach its end-of-life).
    The Bipolar Lead could break or become corroded, disconnected, or dislodged.
    Any mechanical problems could require surgery. Surgery could cause the nerve to swell because of the lead placement around your vagus nerve. If the Pulse Generator and Lead are removed, it is possible the nerve may swell due to the handling of the nerve. Moving the VNS Therapy ™ System could cause damage to the vagus nerve or other parts of your body. You should not move or twist the Pulse Generator or Bipolar Lead. 
     A malfunction of the Pulse Generator could damage the vagus nerve. This malfunction could lead  to permanent hoarseness or other complications. Stimulation may become painful, irregular, or          continuous. Call your doctor immediately.
    I wasn't about to subject myself to the dangers of this unproven device. My role as part of the control group was basically to remain depressed (which Cyberonics could realistically assume I would, after all these years and all those medications). My ongoing depression would magnify any beneficial effects that occurred within the treatment group -- it would skew the data in Cyberonics' favor.
    "I despise these companies," I told a study employee.
    "All you have to do is get better, if you want to screw them up," he said.
(It's not going to happen.)     

    I didn't get better. I should have faked it, as a way of expressing my Rage Against the Machine.
    As if all the failures, side-effects and irreversibility of the implant weren't enough, there are quite a few somewhat scary precautions for those who had the device implanted. For example:
    "Being close to certain types of equipment can affect the Pulse Generator. Move away from or avoid equipment such as transmitting antennas. Move at least 1.8 meters (6 feet) away from any equipment that interferes with your device. The Cyberonics Magnets are very strong. They can damage televisions, computer disks, credit cards. Move through antitheft devices and medical detectors at a steady pace; do not linger in the area and stay at least 40 centimeters (16 inches) away from such equipment. Electrical or electromechanical devices with a strong static or pulsing magnetic field can cause the Pulse Generator to start suddenly. Such devices may include strong magnets, tablet computers and their covers, hair clippers, vibrators, antitheft tag deactivators, and loudspeakers. 
Ah, the lucrative beauty of neuromodulation.
    "Keep this type of equipment at least 20 centimeters (8 inches) away from your chest. Treatment with radiation, cobalt machines, and linear accelerators may damage the Pulse Generator.
Note that no testing has been done to date. The effect of radiation on the device is not known. External cardiac defibrillation (an emergency, life-saving procedure) and other procedures for heart problems, as well as extracorporeal
shockwave lithotripsy, diathermy, and electrocautery, may damage the Pulse Generator. 

    "While the Pulse Generator is stimulating or being set or tested, it may briefly interfere with nearby equipment. If this happens, move at least 1.8 meters (6 feet) away from such equipment. The Pulse Generator can interfere with devices that operate in the 30 kHz to 100 kHz range. Hearing aids and transistor radios operate in this range. The Pulse Generator may affect other implanted medical devices, such as cardiac pacemakers and implantable defibrillators. Possible effects include sensing problems. These could lead to inappropriate responses from the Pulse Generator. 

    Cyberonics' own clinical trial data are unimpressive when regarded through the eyes of one who needs effective treatment of depression rather than through the eyes of a corporate executive who is fantasizing about an exploding global market. Caveat emptor.
COMING NEXT: Vagus nerve stimulation is being tested by several device makers for possible treatment of a wide array of conditions. But Cyberonics' implanted device may become obsolete before it ever gains a significant foothold in the market: Several firms are already developing noninvasive, handheld devices to deliver the electric pulses. PLUS: Neuromodulation is a burgeoning field in the medical-device industry. Profound effects on the brain and body may soon be delivered by high-tech products that are already being tested worldwide.