Regulatory Actions Related to EAV Devices
Stephen Barrett, M.D.
Thousands of practitioners use "electrodiagnostic" devices to help select their recommended treatment. These devices, which are fancy galvanometers, merely measure skin resistance to the passage of electrical current. However, many are claimed to determine the cause of any disease by detecting the "energy imbalance" causing the problem. Some are also claimed to detect whether someone is allergic or sensitive to foods, deficient in vitamins, or has defective teeth. Some operators claim to tell whether a disease, such as cancer or AIDS, is not present. The diagnostic procedure is most commonly referred to as Electroacupuncture according to Voll (EAV) or electrodermal screening (EDS). This article summarizes the EAV-related regulatory actions that have come to my attention.
Galvanic skin resistance has no proven or logical relationship to the diagnosis or treatment of any disease. The U.S. Food and Drug Administration classifies "devices that use resistance measurements to diagnose and treat various diseases" as Class III devices, which require FDA approval prior to marketing. No such device can be legally marketed in the United States for diagnostic or treatment purposes. A few companies have obtained 510(k) clearance (not approval) by telling the FDA that their devices will be used for biofeedback or to measure skin resistance, but this does not entitle them to market the devices for other purposes.
EAV devices are not biofeedback devices. Biofeedback is a relaxation technique that uses an electronic device that continuously signals pulse rate, muscle tension, or other body function by tone or visual signal. In biofeedback, the signal originates and is influenced by the patient. In EAV, the signal is influenced by how hard the operator presses the probe against the patient's skin. (Pressure makes the electric current flow more easily between the device and the skin.)
The FDA has banned importation of EAV devices into the United States and warned or prosecuted a few marketers. Foreign and state regulatory agencies have also taken a few actions. However, no systematic effort has been made to drive them from the marketplace. As a result, these bogus devices are being used by many chiropractors, acupuncturists, dentists, "holistic" physicians, veterinarians, self-styled "nutritionists," and various unlicensed individuals. The most common use is for prescribing homeopathic products. They are also used to determine "allergies," detect "nutrient deficiencies," and locate alleged problems in teeth that contain amalgam fillings.
- In 1985, the FDA notified a distributor that Vegatest devices
could not be marketed as a medical devices without FDA approval
(which they do not have) .
- In 2000, the FDA ordered Phazx Systems to stop making illegal
claims for its BodyScan 2010 and VLD-100 devices .
- In 2001, the FDA warned Vega Grieshaber KG and an American distributor
(BioEclectic Research, of Santa Rosa, California) that the Vega
devices and several others were unapproved medical devices that
could not be legally marketed in the United States [3,4]
- In 2011, the FDA ordered Galloway Technologies to stop representing that its Asyra software interface allowed practitoners to evaluate their patient's parameters of health using information gathered through the device's hardware system .
- In 2015, the FDA ordered ONDAMED, Inc., to stop making claims that Ondamed devices are useful in treating diseases. The warning letter also noted that it is improper to market the Ondamed system as a biofeedback device:
The Ondamed System does not fall within the classification regulation for a biofeedback device under 21 CFR 882.5050. As defined by 21 CFR 882.5050, "[a] biofeedback device is an instrument that provides a visual or auditory signal corresponding to the status of one or more of a patient's physiological parameters (e.g., brain alpha wave activity, muscle activity, skin temperature, etc.) so that the patient can control voluntarily these physiological parameters." The Ondamed System lacks the monitoring functionality that is essential for biofeedback devices; it does not have any design features or capabilities that allow the device to measure, record, or monitor a patient's physiological parameters so that the patient can control voluntarily these physiological parameters .
- In 2015, the FDA ordered ZYTO Technologies of Lindon, Utah, to stop claiming that its ZYTO devices are useful for diagnosis or for measuring the body's "preferences" for nutritional products . In 2016, presumably as a result of FDA pressure, ZYTO announced "a voluntary recall of the ZYTO Tower and ZYTO Select and Elite software due to claims exceeding the 510(k) clearance." [8,9]
State Attorney General Civil Actions
- In 1991, the Illinois auditor general concluded that the state's Department of Children and Family Services was improperly paying for services by Ina J. Organ, an unlicensed "natural health counselor" who prescribed herbal and homeopathic products for hyperactive children. Organ's "credential" was obtained at a one-day session at the School of Natural Health in Utah, which trained distributors of products marketed by Nature's Sunshine, Inc., a multilevel marketing company. Organ's" diagnostic" methods included use of iridology, an Interro device, and a questionnaire that supposedly enabled her to spot Candida (yeast) infections. In 1993, Organ signed a consent judgment ordering her to pay a $1,000 penalty, offer restitution to former clients, and refrain from (a) using an Interro device), (b) providing iridology, (c) making false representations that herbal or homeopathic products strengthen the immune system, (d) using a "Candida Albicans Questionnaire" or related materials, (e) using any other questionnaire purported to help diagnose or treat any human ailment, and (f) representing that hyperactivity is caused by food allergies or can be cured or mitigated by homeopathic or herbal products. She was also ordered to refrain from diagnosing or treating any human ailment without a valid license to do so .
- In 2002, the Oregon Attorney General settled a lawsuit against
Monte Kline, Shirley Hancuff, and Pacific Health Center (PHC), under
which the defendants agreed not to misrepresent that EDT can
diagnose food allergies, "weak organs," certain viruses,
lead levels in children, and various other health problems. The
stipulated judgment also called for the defendants to pay $15,000
for costs and to offer refunds available to individuals whom
they had tested during the previous three years . State authorities in Washington subsequently charged Kline and PHC with (a) violating the state's consumer protection act by misrepresenting the significance
of his credentials and the diagnostic capabilities
of EDT and (b) practicing medicine, naturopathy, and acupuncture without a license.
The courts ultimately ruled that Kline had violated the licensing laws but not the Consumer Protection Act. Kline announced that he would close his Washington clinic because the "unlicensed practice" ruling barred him from doing EDT, but he still operates two centers in Oregon and one in Idaho .
- In 2006, the Washington Department of Health ordered Joyce M. Tasker of Coleville, Washington, to stop practicing medicine and veterinary medicine without a license. A motion for summary judgment stated that Tasker, who was not a licensed health-care provider, had been using EDT to diagnose a wide variety of problems in humans and animals. (In a deposition, Tasker stated that she had begun with an Orion device and later "upgraded" to an Asyra device.) Tasker appealed to her local trial court and then to the Court of Appeals, both of which upheld the Health Department's decision .
- During 1990, FDA agents twice raided
the Century Clinic, of Reno, Nevada (now called the Century Wellness
Center) and seized Dermatron devices and the medical records
of 71 patients . The case was settled in 1993 with a consent
agreement under which the clinic and its director, Katrina C.
Tang, were prohibited from using EAV devices without either FDA
approval or under an approved application for an investigational
device exemption that would permit legitimate experimental
use. The agreement also provided for a $200,000 penalty for violation
of the consent decree. After the agreement was signed, Biosource,
which was not a party to it, obtained an Investigational Device Exemption
by falsely claiming that its Listen System devices would be used experimentally
to see whether they could detect diabetes. According to court documents
filed by the U.S. Justice Department, Tang and the clinic then
used two of these devices to diagnose other serious diseases
and did not collect the data necessary for the Biosource study.
In 1998, a magistrate judge recommended that a $400,000 fine
be imposed on Tang and the clinic . A petition to overturn
this ruling was denied by two federal courts and the U.S. Supreme
Court . In
December 2002, Tang signed a stipulated agreement with the Nevada
Board of Homeopathic Examiners indicating that she would retire
and would not accept new nonemergency patients. The stipulation noted
that between December 27, 2001, and February 4, 2002, 18 complaints
had been made against her that had not been investigated by the board
- In 1994, Floyd E. Weston, who had been marketing EAV devices and unapproved homeopathic drugs, pleaded guilty to a misdemeanor count
for introducing unapproved medical devices into interstate commerce. The plea agreement required him to agree to a permanent injunction barring him from selling the device or homeopathic remedies. He was sentenced to a year of probation and ordered to pay a $2,500 fine and complete 40 hours of community service.
The injunction barred him from
directly or indirectly (a) engaging in the sale, lease or distribution of any Prophyle, Biopath, Dermatron, or similar device or any other unapproved medical device, (b) engaging in the sale, advertising, or distribution of any drug not listed in the US Pharmacopeia, the Homeopathic Pharmacopeia or the National Formulary .
- In 2000, Rebecca Y. Rogers was arrested on complaints alleging unauthorized practice of medicine involving three clients. Testimony in the case indicated that Rogers, who purported to be a naturopath, used an EAV device to falsely diagnose a woman with breast cancer, ovarian cancer, and a brain aneurysm and falsely diagnose tapeworm in the woman's son (who was sitting on her lap but not connected to the device). She also told another woman who had been medically diagnosed with multiple sclerosis that her problem was bacterial and that she also a gall stone, inflamed appendix, inflamed small intestine, and inflamed large intestine. A lower court ruled that the legal definition of "practice of medicine" was overly broad, but in 2001 the Michigan Court of Appeals reinstated the case . I don't know what happened after that.
- In 2003, an Australian naturopath who used a MORA device
for diagnosis was convicted of manslaughter in connection with
the death of an 18-day-old infant whom he had claimed to have
cured of a heart defect .
- In 2006, John E. Curran, of Exeter, Rhode Island, was
sentenced to 12-1/2 years in prison for fraud and money laundering.
He was also ordered to pay $1.4 million in restitution to 338 former
clients he had victimized. Documents in the case indicate that pretended
to be a medical doctor but had no valid health credentials.
His "diagnostic" tools included "Biomeridian stress assessment."
- In 2009, Enrique Vela (a/k/a Enrique Vela-Lopez) and his wife, Ute Marquez, were charged with practicing medicine without a license. The couple operated the Alternative Therapy Center out of their home in Winter Haven, Florida. The charges were based on an undercover investigation by two agents of the Polk County Sheriff's Department who were tested with an Asyra device. One was told she had hookworm larvae, bilharziasis, intestinal fluke and enzyme deficiencies in her small intestine, and bacteria and anthrax in her body. The other was diagnosed with problems of the skin, sinus, and reproductive organs . He settled the charges by entering a pre-trial intervention program.
Professional Board Actions
- In 1986, the California Board of Dental Examiners suspended the license of Ralph A. Landerman, D.D.S. after concluding that he had mistreated two patients. The accusation stated that he used a Dermatron to diagnose "energy" problems with many of their teeth that he purported to treat with homeopathic injections followed by extraction of the teeth. The board concluded that removal of the teeth—11 from one patient and 3 from the other—was unnecessary, caused the patients to become "dental cripples," and constituted "gross ignorance and/or inefficiency . . . incompetence and/or gross negligence."  The case was settled with a stipulated order under which Landerman's dental license was suspended for five months and he was placed on five years' probation during which he was required to (a) take remedial education courses, (b) arrange for monitoring when he resumed practice, and (c) refrain from further ues of the Dermatron device .
- In 1990, the New Zealand Medical Journal described
how a homeopathic physician had used a Vega device to diagnose
allergies in three infants. In each case, the device was applied
to the mother with the child on the mother's lap or roaming about
the examining room. The doctor also diagnosed "miasms,"
which, if not removed, would prove fatal later in life. The Medical
Practitioners Disciplinary Committee ordered that he be censured,
pay a penalty of NZ$900 plus NZ$25,000 for costs and expenses,
and follow certain standards of care for three years .
- In 1992, the Wisconsin Medical Examining Board obtained a stipulated
order barring Timoteo Galvez further use of an Interro device for diagnosing
or treating patients .
- In 1992, the Virginia Board of Medicine accused Vincent J. Speckhart, M.D., of improperly managing the case of 13 patients, most of whom had cancer. The complaint alleged that in 9 of these cases, Speckhart used an EAV device to make improper diagnoses and select homeopathic remedies and other inappropriate substances to treat them . In 1993, the case was settled with a consent order in which Speckhard admitted no wrongdoing but the board concluded that he had improperly diagnosed and/or treated 10 of them, including 6 who had received EAV testing . The board placed Speckhart on indefinite probation with a provision that he could use an EAV device only as a clinical investigator and not for diagnosing or treating of medical condtitions. His probation was terminated in 1998.
- In 1994, the Oregon Medical Board revoked the license of John E. Gambee, M.D., after noting that his use of unscientific practices—including EAV and ozone therapy—justified revocation of his license . (He was permitted to resume practice in 1994 but got into trouble repeatedly and had his license revoked in 2011.)
- In 1995, Leo J. Bolles, M.D., was disciplined by the Washington Stete Medical Quality Assurance Commission for a variety of improper practices, including the use of an Interro device to diagnose allergies .
- In 1995, after reviewing her care of 36 patients, the College of Physicians and Surgeons of Ontario (Canada) concluded that Carolyn Dean, M.D. was unfit to practice and revoked her registration certificate. The questionable practices that concerned the regulators included Vega and Interro testing .
- In 1996, the New Jersey Attorney General
obtained a consent agreement in which William Holder, M.D., was
ordered to (a) properly code insurance claim forms; (b) obtain
informed consent when using unconventional methods; (c) stop
using an "Acuscope," device; (d) stop selling dietary
supplements, homeopathic remedies, and herbal products; and (e)
pay $5,319.92 to cover the cost of the state medical board's
investigation of him .
- In 1996, a hearing officer concluded that Dr.
Richard Plagenhoef had provided substandard care to a patient and
recommended that his license be suspended until he can demonstrate
to the licensing board that he can practice medicine with skill and
safety. The hearing officer's report said that
Plagenhoef had (a) diagnosed chemical toxicity based on no medical
tests or physical examination, (b) used a worthless device (an Interro)
to confirm that "diagnosis," and (c) improperly treated
the patient with "detox
drops." The board adopted the hearing officer's recommendations. The Florida
Department of Health's Web site states that Plagenhoef's license was revoked
in 1997 but does not indicate why .
- In 1998, the Missouri licensing board charged a chiropractor
(Gary Edwards) with falsely telling a patient his HIV (AIDS virus)
infection had been cured, leading to infection of the man's wife
and daughter with the virus. According to reports in the Kansas
City Star, the patient, who had hemophilia, consulted Edwards
after learning that he was infected with the virus. According
to the board's complaint, Edwards said that he could treat the
disease with help from an Interro device and prescribed various
supplements and herbs. Six months later, he allegedly said that
the virus had been eradicated, and the patient and his wife decided
to have a child. The child was born in 1992. The patient died
a few months later of complications triggered by AIDS, and tests
subsequently showed that both mother and daughter were infected
. In February 2000, a Missouri judge agreed that the chiropractic
board could discipline Edwards for "fraud deception and
misrepresentation."  In May, the board suspended him
for two years followed by five years of probation . In April
2002, the Missouri Court of Appeals ruled that the Board's fact-finding
body erred by not allowing Edwards to have access to certain
. The board subsequently withdrew its complaint. Edwards
sued the board members and an investigator for malicious prosecution
, but the Missouri Court of Appeals reversed the decison and permitted the case to continue to trial and the jury awarded $6.2 million to Edwards .
- In 1998, the Discipline Committee of the College of Physicians
and Surgeons of Ontario (Canada) found Jozef Krop, a Canadian
physician, guilty of professional misconduct in that he failed
to maintain the standard of practice in the care of six patients
whose cases the committee had reviewed. The misconduct included
use of a Vegatest device to "screen" and/or to determine
how to treat the patients. Krop appealed the decision,
but the divisional court ruled against him and his petition to appeal to the
Ontario Court of Appeal was denied in 2003 .
- In 1998, the Nevada Medical Board entered into a stipulation for settlement with Donald Soli, M.D., under which he was reprimanded, placed on probation for five years, and barred from using a Dermatron or any similar machine .
- In 1998, an Australian
dentist received a 6-month suspension for performing jaw surgery
based on readings of a Dermatron device .
- In 2001, the Connecticut Department of Health placed Mark Breiner, D.D.S. on probation for five years, during which he was required to disclose that there was "insufficient scientific evidence to support the use of" electrodermal testing. However, the Department's action, which primarily concerned his inappropriate removal of amalgam fillings and root-canal-treated teeth, did not require Breiner to stop doing EAV testing .
- In 2003, Anthony G. Roeder, D.D.S., of Paoli, Pennsylvania, permanently
surrendered his dental license to settle charges of unprofessional
conduct. The settlement agreement indicates that the dental board
was concerned with his substandard treatment of two women . One
case concerned a woman who suffered severe pain after he unnecessarily
removed amalgam fillings in 11 other teeth. At his direction, the woman
also underwent EDS. In the other case, he injected homeopathic "remedies" into
the patient's gums.
- In 2003, the Maryland State Board of Physician Quality Assurance
revoked the license of Barbara A. Solomon, M.D. for refusing to cooperate
with an investigation of her use of a Computron device. In 1998, after
a patient complained, the board warned her about failure to adequately
disclose the risks involved and said that in six months it would
review her practice. When the board subsequently asked to see patient
records, Solomon stalled and ultimately
filed suit to block the board's request . The court upheld the
board's actions .
- In 2004, the Washington Department of Health
Medical Quality Assurance Commission concluded that Geoffrey S. Ames,
M.D., who practices in Richland, Washington, had committed unprofessional
conduct by using a LISTEN device to (incorrectly) diagnose a patient
as having an "egg allergy." The Commission issued a 5-year
license suspension that would be stayed provided that Ames (a) stopped
using the device, (b) undergoes quarterly practice reviews, and (c)
pays a $5,000 fine . In 2007, the Washington Court of Appeals
agreed that use of the device had created an "unreasonable
risk of harm."  In 2009, the Washington Supreme Court
agreed, stating that Ames had "led patients to believe that LISTEN could diagnose and treat allergies, when in fact it could do neither." 
- In 2005, the Connecticut Department of Health accepted a consent
agreement under which Warren M. Levin, M.D., waived his right to a
hearing about allegations that, if proven, would have been grounds
for disciplinary action. The agreement included routine electrodermal
screening in a list of eight diagnostic and treatment methods that
were "outside the standard of care." The investigator's report
alleged that Levin had engaged in various illegitimate medical practices,
falsely told patients he was doing research, and had staff members
perform procedures for which they were not properly credentialed and
licensed. Levin relocated to Arizona at about that time and let his
Connecticut license lapse in August 2004. However, the Department took
steps to ensure that if he reapplied for licensure in Connecticut,
it could deny the application unless he could demonstrate that his
practice would be legal, safe, and effective .
- In 2005, the Wisconsin Dentistry Examining Board revoked the license
of Richard Vander Heyden, D.D.S., of Green Bay, Wisconsin, for unprofessional
conduct related to the use of two EAV devices (Dermatron and Interro).
The heart of the Board's decision was that Vander Heyden's diagnostic
use of EAV devices and prescription of homeopathic products for non-dental
conditions were beyond the legitimate scope of dental practice. In
one case the board investigated, Vander Heyden used his Dermatron at
various times to falsely diagnose botulism; pneumonia; meningitis;
hepatitis; coxsackie virus; Epstein-Barr virus; E. coli and klebsiella
(bacterial infections); whooping cough; and gallbladder and colon inflammation,
most of which he then treated with homeopathic products. Although he
claimed to have used the devices for research purposes, he refused
to provide the board with any experimental thesis, protocol, data,
or patient records .
- In 2005, Dorothy Merritt, M.D., who operates chelation clinics in
a consent agreement with
the Texas Board of Medical Examiners under which she was assessed $3,000
and ordered to retract a misleading promotional statement that the
BioMeridian device was "the medical tool of the millennium."
- In 2007, the policy committee of the Ohio Dental Board concluded that it was not within the scope of dental practice to use a Biomeridian device to evaluate whether people are deficient in certain vitamins and minerals and to formulate a custom nutritional supplement .
- In 2010, the Connecticut Board of Health charged Jarir Nakouzi, M.D. with deviating from the standard of care in caring for a late-stage cancer patient . The treatment centered around the use of a bioresonance device for diagnosis and treatment. Newsweek has published a vivid account of what happened . The case was settled in 2011 with a consent order under which Nakouzi agreed to (a) pay $5,000, (b) stop using devices that measure skin resistance for diagnostic or treatment purposes, (c) stop making unsubstantiated claims that refrain from recommending, prescribing, or administering any alleged cancer treatment that lacks FDA approval or scientific support, and (d) serve probation for two years, during which at least 20 of his patient charts should be subject to random review by a supervisor acceptable to the Connecticut Department of Health .
- In 2011, the Florida Board of Massage Therapy revoked the license of Enrique-Vela-Lopez, LMT (mentioned above) for practicing beyond the scope of massage therapy by using an Asyra device. He was also fined $1,500 and assessed $3,900 for costs .
- In 2015, in response to a complaint from me, the Texas Medical Board concluded that the Web site of Pieter J. De Wet, M.D. contained improper statements about the ZYTO device, "laser energetic detoxification" with an Asyra device, and ozone therapy. When notified of a possible violation, De Wet removed the statements at issue plus others that his attorney advised might concern the board in the future. He then signed an agreed order under which he was reprimanded, fined $3,000, and required to take continuing education courses in risk management and ethics .
- In 2015, chiropractors Richard F. Bronson , Michael Bean , and Eric J. Olsen  each signed a consent agreement with the Arizona State Board of Chiropractic Examiners under which they were placed on probation for six months, and ordered to pay a $250 civil penalty and to "cease and desist the use of ZYTO bioscan technology."
- In 2016, the Illinois Department of Financial and Professional Regulation suspended the chiropractic license of Michel Y. Roy, D.C., who had advertised on his web site that he used the Vega Test to measure "electromagnetic fluctuations" in a patient's body to attain "clinically relevant information" about "food allergy testing," "organ screen," [sic.] and "intestinal flora imbalance." The disciplinary order noted that the device was neither a diagnostic nor a screening tool and lacked FDA approval .
- Three chiropractic boards have considered whether EAV devices are "within the scope of chiropractic." The Oregon Board has said no, but the Arkansas Board has said that the ZYTO can be used as a "nutritional analysis tool." The Wisconsin Board has prohibited the use of the EAV, Vegatest, Biotron 1000, Accupath 1000, Vi-Tel, Interro, and Pro-Phyle or "substantially similar counterparts of any othese devices.
Foreign Regulatory Agency Actions
- In 1999, the British Advertising Standards Authority (ASA) reviewed
a pamphlet which alleged that a Bio Resonance Therapy device
could help people suffering from headaches, overweight, tiredness,
bloating, irritable bowel syndrome, skin rashes, arthritis, and
premenstrual tension. In May 1999, after reviewing a manual and
other information about the device, the Authority concluded that
the claims were unsubstantiated .
- In 2000, the Australian Competition and Consumer Commission
secured an agreement under which Listen Systems Pty Ltd and its
director, Stephen John Alexander, would stop falsely advertising
that their "EQ4 Quick Check" and the '"EQ4 Computerised
Electrodermal Screening" devices can: (a) test particular
energy points and find an appropriate remedial strategy by scanning
over 40,000 items stored in their "virtual inventory";
(b) measure allergic reactions to samples of specific food, pollens
and other substances; and (c) imprint appropriate frequencies to
create individually designed isopathic remedies .
- In 2002, Health Canada suspended the licenses for the Vegasom
(License No.13264), Vega Audiocolor (License No. 13267), Vegaselect
(License No.13270) and Vegatest Expert (License No. 14736), which
prohibits the sale or importation of these devices.
- In 2002, the ASA concluded
that a leaflet offering Vega testing as a "complete
test for hidden problems" was misleading and advised
the advertiser to withdraw it .
- In 2011, the ASA
concluded that a leaflet for "food sensitivity testing" with a Vegatest device was misleading and must be discontinued because validity of the device was not backed by sufficiently robust evidence .
- In 2015, the ASA ordered Bicom UK, based in Leeds, West Yorkshire, to stop claiming that its Bicom "bio-resonance" machines are effective against allergy; food intolerance; bacterial and fungal infections; viruses; toxins; cancer; depression; smoking; weight gain; sports injuries; digestive and skin problems; neurological disorders; irritable bowel syndrome; Crohn's disease; neurodermatitis; ADHD; dental problems; and even Ebola .
- In 2015, the ASA ordered LifePrinciples of Birmingham to stop claims that bioresonance devices (coMra therapy, miHealth and VisionPro) could help people solve various health problems .
- In 2018, the ASA ordered Carolyn Stevens to stop claiming that her Asyra device (a) "can be used for screening for a multitude of issues and imbalances in your system," (b) "will identify issues and help with the start of a balancing, desensitisation or detoxification protocol," (c) can check the energetic status of 40 major organs, and (d) is effective in screening for food sensitivities; nutritional, hormonal and toxic loads; infections; alcohol addiction; parasites; and many other health problems .
For Additional Information
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This article was revised on August 30, 2018.