Since 2025, we have restructured our practice’s focus from comprehensive integrative holistic medicine to SOZO neuromodulation (according to Petros Kattou).

• In 2023, I was – together with Lenna – the first doctor trained by Petros.
• We have completed most of our trainings with Petros Kattou so far.
• We are the first SOZO Brain Center worldwide outside of Cyprus.
• And we are the first practice outside of Cyprus to offer TPS therapy as part of SOZO neuromodulation and to use all SOZO neuromodulation devices.

 

Description of the Scope of our Office

This is a very long page, so here are links to quickly jump to the section of interest to you:

• Ordination: Background and Philosophy
  • Diagnostics
    • Bioenergetic Testing
  • Routinely Applied Healing Methods (List)
  • Ozone Therapy Methods
  • Pain treatments
  • Appointments
  • different from a “normal doctor”
    • Parasite medications also as cancer medications
    • Tumor types that I have researched in PubMed
    • Off-Label Medication List
  • Background: Years of university basic research
  • Plus 300 additional courses or training courses in the last >30 years

   

  New chapter since 2023: Neuromodulation

  • Neuromodulation

   

   

   

   

  the practice

  Based on a solid basic scientific and conventional medical training, we have been collecting and testing advanced concepts of health, prevention, and therapy for almost 30 years.

  Without ideological reservations, we simply use everything that works in a preventative and curative sense.

  Feedback from improved patients is particularly important to us. Whenever something has actually been proven to help or even cure, we try to learn from it, integrate it, and use it ourselves if necessary.

  

  The Boss: Dr. Helmut B. Retzek

  Based on a solid basic scientific and conventional medical education,

  several years of biochemical and molecular biological research at the university with excellent publications,

  we have been collecting and testing advanced concepts of health, prevention, and therapy for almost 30 years.

  Without ideological reservations, simply everything that works in a preventative and curative sense.

  The feedback from improved patients is particularly important to us.

  Whenever something has actually demonstrably helped or even cured, we try to learn from it.

  “`

  Secret Weapon: Continuing Education

  Many – often complex – additional training courses and diplomas, ongoing continuing education, constant research in the research database, many, many books are the foundation of our holistic medicine.

  I have been compiling many of these research articles for 30 years (since 1991) on my blog www.ganzemedizin.at. In fact, I even look there myself to see what I have already researched/found on the treatment of certain illnesses.

   

  Diagnostic Range

  We use “normal” examinations like in any doctor’s office. Referrals to specialists and radiologists are a matter of course. But we also use specialized laboratories and our secret weapon:

  various bioenergetic testing procedures.

  This allows us to often find successful treatments for patients who have often been previously treated for many years. Below you will find a detailed list of our diagnostic portfolio.

  Typical patients who come to us

  • Neurological problems: of all kinds if not improved by conventional medical treatment, especially neurodegenerative problems and even genetic problems.
  • Weakness & Burnout
  • ME/CFS & Long Covid
  • unclear pain
  • chronic infections
  • cancer
  • aging-related decline, dementia
  • autoimmune diseases
  • hormonal disorders – what is largely unknown: I have completed six diploma courses in bioidentical hormone therapy.
  • patients who have been treated for many years without success
  • all strange illnesses where colleagues shrug their shoulders

  every yearwe learn new things or deepen and expand on what we already know.

 

How did it all develop?

It all began with my sister Ilse

My sister suffered from juvenile polyarthritis since childhood and, after years of struggling, was finally completely cured through homeopathy.

Then:

my mother nearly died from antibiotic-induced colitis and was hospitalized in all sorts of hospitals.

She has bin in several hospitals in Upper Austria and Salzburg without improvement – left at home “untreatable” and was finally completely cured by “Hildegard medicine.”

All of this happened before or during my studies.

I myself come from a background in basic scientific research, where you are trained to have completely undogmatic trust in experiments and their results, regardless of whether they fit your concept or not.

If homeopathy helped my sister and Hildegard medicine helped my mother, there’s nothing to doubt or criticize; then you have to deal with it!

This epistemological background of “critical openness to all options” enabled me to examine everything from family constellations to chemotherapy, from quantum healing to ozone therapy, from orthomolecular therapy to hormone therapy, from parasite treatment to homeopathy, from acupuncture to fascia therapy, and to use what works well in our hands.

 

A setback in my life leads to extensive training

I devoted the first years of my practice almost exclusively to classical homeopathy. Then, due to heavy metal poisoning, I slipped into severe burnout and was unable to work.
None of the 30 practitioners I consulted were aware of this, and when I finally got myself out of it, we began to focus intensively on toxic loads. This enabled us to help patients who had previously shown little improvement, especially neurological cases.
Since then, countless training courses have followed in many different areas, always following the trail: “Why isn’t this getting better?”
This ultimately led us to chronic – mostly unrecognized – infections: Lyme disease, toxoplasmosis, babesiosis, Epstein-Barr, CMV, and, above all, parasites, causes of disease completely ignored in conventional medicine. This was followed by a multi-year search for reliable and reproducible bioenergetic testing procedures to better address the diagnostic weaknesses of conventional medicine in these unclear cases.
We are not yet optimally positioned in this area, but we are well enough to clarify many questions. From my research days, I retained the ability to search the research database “Pubmed” for research purposes.
To store all this information and, above all, to share it with colleagues, I set up my research website Ganzemedizin.at (formerly Homeopathy.at). Here I share our knowledge and insights free of charge and without ideology.
YouTube blog with testimonials and interesting information
20 years of ongoing scientific research have led to a unique health portal that has been praised by many colleagues:  www.ganzemedizin.at

 

What can you expect here in the practice

?
An interplay of many different diagnostic and therapeutic options that complement and expand conventional medicine, which we love. Below, we want to provide an overview; the links provide further information.

Medical History

Each treatment usually begins with a detailed medical history (questionnaire) lasting 1-2 hours, or up to 3 hours for cancer patients.
You prepare for this with the help of questionnaires. Due to this time commitment, only a few patients can be seen each day.
This results in longer waiting times for an appointment with Dr. Retzek.
A team of experienced staff led by Dr. Helmut B. Retzek nevertheless ensures timely assistance. You will always receive optimal care from a team member, as we are in constant communication and supervision and have developed standardized diagnostic and therapeutic procedures for many diseases.

Diagnostics

We advocate the philosophy of anamnesis-based, targeted diagnostics: only diagnostically and therapeutically relevant laboratory values are recommended.

Laboratory Diagnostics

Standard conventional medical laboratory tests are covered by health insurance; unfortunately, special examinations for modern preventive medicine are to be paid for by the patient (we pass on the purchase prices of the diagnostic laboratories at no extra charge).

• • Our main laboratory for parasite findings and microimmune therapy is Dostal / Vienna.

 

• • Our main laboratory for Borrelia and co-infection findings is the German Chronic Disease Laboratory DCL – minimum cost €350.00.

 

• • We are friends with the St. Georg Clinic in Bad Aibling.We prepare the necessary laboratory tests and preparations for Borrelia hyperthermia and provide follow-up treatment, including for their cancer patients.

 

• • We are happy to perform the Lymphocyte Subtyping Immune Status according to Glady (microimmunotherapy/BigMed) because it is covered by health insurance. Of course, we also completed the entire training with Dr. Glady and Dr. Bubendorfer.

 

 

Special examinations

 

• • Hormone status (saliva, blood), xenohormones, infertility diagnostics

 

• • Intestinal check, stool diagnostics, M2-PK cancer marker, food intolerances IgE, IgG4

 

• • Heavy metal exposure (DMPS / DMSA / Desferal / EDTA chelator excretion tests)

 

• • LTT Borrelia, heavy metals, dental materials, food

 

• • Chronic viruses: Herpes (zoster), EBV, CMV … via Hamwi / Dostal / University Laboratory. Graz

 

• • Tumor detection: TKTL1, Apo10, M2PK tumor markers in stool or blood, Tu markers

 

• • Circulating tumor cells

 

• • With chemosensitivity measurements: Maintrack Pachmann (approx. €3,000)

 

• • Since 2024: NextGenOncology with chemosensitivity measurements (approx. €3,000)

 

• • Atherosclerosis risk, Lipomun-LDL electrophoresis, Lp(A), fatty acid status, coronary artery calcium score

 

• • Burn-out diagnostics, adrenal dysfunction, Thyroid dysfunction, KPU, fatigue and fibromyalgia ultrasound (CFS, FMS, CSS)

 

• • GPRAAK – Measurement for ME/CFS and Long Covid

 

• • We no longer perform parasite tests from stool – completely pointless. In addition to bioenergetic testing, we use dark field imaging, in which the parasite larvae are often visible. Also, LABORATORY Dostal = Univ. Vienna – but we can only test for 6 parasite species there.

 

• • We rarely perform genetic status, detox enzymes, liver detoxification, glutathione/ATP measurements, and stool cultures – all of this is only done upon request. I’m not an expert in this area because I’m too old!

 

We absolutely have to learn about every “new” and potentially promising diagnostic procedure. Don’t hesitate to bring this to our attention; we want to learn and welcome every new option that improves our view of the nature of diseases and their healing.

 

Energetic Diagnoses

After years of painstaking validation, “energetic testing systems” have now become an important part of our practice, as they often provide quick and cost-effective indications of specific diseases. However, energetic diagnoses are usually supplemented by imaging or laboratory diagnostics. We routinely use the following testing systems:

• • Applied Kinesiology

 

• • Tooth-Focal Diagnostics

 

• • ART according to Klinghardt

 

• • Light Kinesiology according to Renzo Celani

 

• • RAC Pulse Testing with Polarizing Filter

 

• • BDORT according to Dr. Yoshiaki Omura

 

• • AMA according to Dr. Simon Yu = modified electroacupuncture according to Voll

 

To be honest: we have learned everything and often used and practiced it for months in practice, but we work 95% of the time with the RAC Pulse Test, as it has the highest sensitivity and reproducibility.
We can often only narrow down and diagnose many of the often “cryptic” neurological diseases in this way: seronegative neuroborreliosis or other brain infections, parasitic infections, heavy metal contamination, chemtrail exposure, scarring and focal disorders – because conventional medical diagnostics are either incomplete or lacking.

 

Therapies

We have learned numerous therapeutic procedures in extensive “diploma courses” and have tested them for effectiveness. This is necessary because, unfortunately, not everything “helps as well as one has learned in courses, lectures, or books.”

Although we are “committed conventional medical practitioners,” the complementary therapies listed below are important and often necessary additions, since virtually all of our patients have been previously diagnosed and treated by conventional medicine for a long time. Complementary healing methods, especially ozone therapies and some “medical devices” or “apparatus,” mostly originate from modern integrative medicine.

Complementary healing methods

Here I summarize the routinely (daily) used additional methods in order of frequency of use.

• • Classical homeopathy  by experienced teaching therapiststen

 

• • Complex remedies according to Josef Buchegger

 

• • Chelation therapies, detox with DMPS, DMSA, DTPA, Desferal, DMSO

 

• • with measurement of heavy metal contamination from urine/stool using DMPS/DMSA/EDTA provocation tests

 

• • Infusion follow-up care after chemotherapy/radiation
    • • High-dose vitamin C – up to 1.3g / kg body weight

     

    • • Curcumin infusions,

     

    • • Chelators,

     

    • • Selenite infusion

     

    • • Amygdalin / Laetrile / B17 Therapy

     

    • • Albumin Carrier Therapy MTX-HSA

     

    • • DCA Infusion

     

    • • High-Dose Mistletoe Infusions (up to 1000 mg)

     

     

 

• • Infusion Therapies for Stress and Immune Deficiency (Manager Cocktail, Omega 3 IV, High-Dose Vitamins and Coenzymes, Magnesium/Zinc, Amino Acid Cocktails according to Landenberger & Spitz…)

 

• • Dental Focal Diagnostics and Temporary Test Therapy or Targeted Transfer to Biological Dentists

 

• • Diploma in Orthomolecular Medicine

 

• • Macular Acupuncture according to John Boel | regular assistantship at/for diploma courses by John Boel

 

• • Benaudira  – brain training –> discontinued

 

• • Palm therapy

 

• • Laser therapies (Haemolaser, Weber laser)

 

• Bengal rose – DMSO infiltration
• Insulin-potentiated therapies – IPT (now only with biological substances after chemosensitivity testing)
• We have discontinued the following therapies because they are too complex for our everyday practice (staff shortages)
  • Insulin-potentiated chemotherapy (possibly with hyperthermia) after chemosensitivity testing according to Dr. Forsythe (originally discontinued, now only with biological substances after chemosensitivity testing)
  • Whole-body hyperthermia procedures –> discontinued
  • Local shortwave hyperthermia (oncothermia) for cancer –> discontinued
  • Galvanic therapies, ECC, BET –> discontinued

   

 

Pain Therapies

 

• • Neural Therapy,

 

• • Acupuncture – BOEL Acupuncture (Lenna is Boel’s assistant during courses)

 

• • Mesotherapy,

 

• • LnB (Liebscher Bracht),

 

• • Diploma in Palliative Medicine,

 

• • Here, especially SOZO Neuromodulation Therapy according to Petros Kattou#

 

 

Ozone Therapy – Different Methods

After being “skeptical” about ozone therapy for a long time as a classical homeopath, we have now developed a great love for this “ancient therapy” because it significantly helps us with chronic infections, especially the Epstein-Barr virus. We also see possibilities for joint wear, joint pain, and ligament injuries with “Prolozone” – a combination of proliferation therapy and ozone therapy (Dr. Rob Hauser, Dr. Shallenberger) that we simply didn’t have before.

Ozone procedure

 

• • small / large autologous blood ozone therapy,

 

• • Ozone-thymus therapy

 

• Ozone fumigation of wounds
• vaginal ozone insufflation (especially for chronic or recurrent cystitis)
• We are particularly proud that through our own treatment with Dr. Lahodny / St. Pölten learned his therapy and is one of the few in Europe who can apply it!
• High-dose ozone multi-pass therapy according to Dr. Lahodny,
• From the USA, we have adopted from Dr. Robert Rowen: diluted ozone-saline blood UV irradiation and the new ozone-blood-saline laser therapy
• Ozone + UV blood irradiation,
• Ozone + blood laser irradiation

–> Great for Epstein-Barr and other chronic infections.

 

Apparate therapy procedures

Apparate therapies have proven effective for some diseases. We only work with procedures that have proven VERY successful (for specific indications) in many integrative medicine clinics and practices. Some of these therapies have already been mentioned in the above section.

• • Haemo-Laser: for rheumatism, fatigue, burnout

 

• • Weber Frequency Laser: ditto, especially with blue light or UV light with photodynamic substances for cancer
    • • Photodynamic Tumor Therapy (Laser)according to Weber

     

    • • Frequency laser as a supplement to the Haemo laser

     

    • • Photodynamic virus therapy with riboflavin + blue laser

     

     

 

• • LED: Laser enhanced detoxification (Lee Cowden), laser field treatment (Klinghardt)

 

• • Elec-Magnetron – we are happy to do it

 

• • 150MHz – we are happy to do it

 

• • Bioptron lamp with polarized light according to Dr. Walter Surböck

 

• • RIFE frequency therapy with the plasma tube – new since 2024, the first tests with patients are very encouraging (patients with toxoplasmosis, Lyme disease, EBV, etc.)

 

• • Biophoton Realignment Therapy according to Renzo Celani – we have discontinued it because the personnel carrying out the treatment have gone into business for themselves.

 

• • We have discontinued whole-body hyperthermia (fever bed) because it was so personnel-intensive; it is now carried out for us at the St. Georg Clinic in Bad Aibling.

 

• • Local shortwave hyperthermia Onkotherm EHY2000 for cancer and metastases – we have discontinued it for the same reasons.

 

• • Prostate hyperthermia according to Dr. Friedrich Douwes / Bad Aibling for benign prostatic hyperplasia and localized prostate cancer –> currently not possible because no catheters are available

 

• • Galvanotherapy | ECT (Electro-Cancer-Therapy) for cancer and metastases – we have given up for the same reasons

 

 

Unlike a “regular doctor”……

Of course, this means that we often act “non-guideline-compliant,” including using “unapproved herbal remedies,” dietary supplements, homeopathic remedies, etc. We also particularly like to use proper medications—but “off-label.”

Many medications have “side effects” that are usually far-reaching.They are extensively researched and known, but not automatically used.

 

This is called drug repurposing.

These are used “off-label” as part of an “individual therapeutic trial.”

This means that you will receive good conventional medicine and comprehensive integrative holistic medicine from us.

–> EXTENDED to include extensive supplementation with “off-label” medications and extensive additional training, many diplomas, and courses in “holistic” therapy concepts.

 

Repurposing of medications – especially parasite medications

We extensively use repurposed medications, especially parasite medications, as adjunct therapies (to conventional medicine) for cancer.

Due to my 7 years of research background (2 of which were spent in a university laboratory in Canada), I am very familiar with the PUBMED research database.

Tumor types examined in Pubmed
As of Sun. March 23, 2025

• Angiosarcoma
• Breast cancer
  • Breast TNBC Cancer
• Cervix Carcinoma
• Cholangiocarcinoma
• Colon Cancer
• Glioblastoma
• Kidney – Renal Cell Carcinoma
• Lung – Adeno-Carcinoma
• Lymphoma
  • B-Cell Lymphoma NON
  • Hodgkin lymphoma
  • Mycosis Fungoides
  • T cell Lymphoma
• Neuroendocrine Cancer
• Ovarian Cancer
• Pancreas Cancer
• Prostate Cancer
• Sarcoma
  • Ewing Sarcoma
  • Liposarcoma
  • myxoid liposarcoma

 

Off-Label Medications in Cancer Therapy (Stage 4 – Palliative)

I have examined the following medications for their effectiveness in the above-mentioned tumor types in PubMed, and we prescribe them – if necessary – off-label, after reversal, with an individual therapeutic trial claim without any promise of healing.

• Ivermectin
• Mebendazole
• Albendazole
• Fenbendazole
• Niclosamide
• Praziquentel
• Fluconazole
• Itroconazole
• Celecoxib
• Berberine
• Metformin
• Atorvastatin
• Cimetidine
• Bacillus subtilis
• Taraxacum / Dandelion
• Artemisia
• IP6
• Moringa
• EGCG
• curcumin
• Vitamin D
• VitC i.v.
• Silymarin
• Omega 3
• DCA
• Viscum
• Propranolol
• Fenofibrate
• Arsenic Detox (Homeopathy)
• Melatonin
• Doxycycline
• Azithromycin
• Metronidazole
• ACC
• Alpha H2+

 

due to my biochemical and molecular biology background

It’s very easy for me to screen the current research literature, as I worked as a biochemist for many years as an assistant in basic university research during my medical studies, including two years in a research laboratory in Canada (UVA). Several PubMed publications document my diligence and zeal.

I would like to highlight the first cloning and sequencing of c-cathepsin D – an enzyme that later became known as AIDS proteinase – at a time when we still had to do everything laboriously by hand!

 

But then became a doctor out of personal interest in “holistic medicine”

My sister and my mother were both seriously ill and, although they were both very well cared for with conventional medications in various hospitals, they did not recover.

Only through “alternative medicine” treatments (homeopathy, Hildegard medicine) did both fully recover.

These experiences with the severely suffering family members, the fear and hope, the helplessness of the esteemed doctors, and at the same time their ignorance and disparagement of the “alternatives” that ultimately worked, had a profound impact on me, and I wanted to use my “scientific spirit” and interest to build a bridge and research and utilize everything that would be helpful in practice.

 

Now – 2024 – I have attended over 300 additional courses

Graduate Anti-Aging Physician, Graduate Palliative Care Physician, Graduate Emergency Physician, Graduate Nutritional Medicine Physician, Graduate for integrative biological cancer therapy

Hormone therapy, ozone therapy, hyperthermia, acupuncture, Boel acupuncture, hyperbaric oxygen therapy, photodynamic laser therapy and hemolaser, Oxyven, etc.

Several bioenergetic testing systems: BDORT (learned directly from Prof. Yoshiaki Omura in the USA), kinesiology (Klinghardt and FMD), AMA = EAV (learned from Simon Yu), RAC pulse test.

Ozone-saline infusion,Meli (Tue-Thu) – German / EnglishSecretariat:

 

 

Neuromodulation

Text still to be written; here are various links that provide more insight.

• • cases-neuromodulation.info  a website I programmed and wrote with example cases in 7 languages.
  • brain-stimulation.info   a website I programmed with special information.
  • sozo-braincenter.com the brain center in Cyprus where I learned brain stimulation with 12 courses so far.
  • web posts on my website here. Neuromodulation content