HBOT Conversations:
Elena Schertz & Tom Fox (Part 1) – PTSD
Elena Schertz, NP and Tom Fox of Extivita-RTP in Raleigh, NC join us in a 5-part series to discuss the extraordinary healing they’ve witnessed through the God-given natural therapy of HBOT. This is Part 1, with a focus on how Hyperbaric Oxygen Therapy is helping the veteran community heal from PTSD, while eliminating suicidal ideations.
Elena Schetz, NP is the nurse practitioner, and Tom Fox is the Safety Director at Extivita-RTP. Extivita-RTP offers a positive environment for healing, and they encourage anyone seeking a better quality of life to come visit them and experience for themselves the wonder of Hyperbaric Oxygen Therapy.
Watch the Podcast
In a Special 5-part series with Extivita’s Nurse Practitioner, Elena Schertz, and Safety Director, Tom Fox, we dive into the extraordinary HBOT healing they have witnessed for a variety of conditions. In Part 1 of 5, we discuss PTSD among the veteran community.
Tom Fox has been involved in the hyperbaric field for 31 years, and is considered an International historian for Hyperbaric Oxygen Therapy. He has extensive experience treating severely injured veterans, with his first experiences dating back to the landmine wounds of the first Persian Gulf War. With his wife, Claudine, by his side they have treated up to 42,000 individuals (for all conditions) with Hyperbaric Oxygen Therapy. He explains that there is nothing quite like getting hugs from veteran family members who have seen their loved ones “come back to life” after having suffered from PTSD for a long period of time. Tom has spent his career educating others on the power of Hyperbaric Oxygen Therapy, with the veteran community being very near and dear to his heart. Tom explains that during combat these troops see extraordinary pressure changes, especially with primary blast injuries that are not visible. He has written many articles on this subject matter and has been called upon as an expert in governmental presentations relative to the effects of pressure on the human body.
- WOUNDED WARRIORS: BLAST INJURY, PTSD, AND HBOT… WHAT ARE WE REALLY TREATING?
- COMBAT STRESS: HBOT: Brain Healing Hidden in Plain Sight
- SPECIAL OPERATIONS TECHNOLOGY: Hyperbarics
- WHITE PAPER: Hyperbaric Oxygen Therapy: A Therapy Capable of Significant Improvements in the care of Veterans with Signature (Silent) Wounding
Elena Schertz, the Nurse Practitioner and clinic manager at Extivita-RTP, is no stranger to HBOT News and has been interviewed on HBOT News previously. She has been a nurse for 25 years, and has a background in primarily Pediatric Oncology, with some experience in the Cardiology field. 13 years ago, Elena became involved with integrative medicine, which eventually landed her at Extivita for the past four years where she has treated over 1,000 patients with Hyperbaric Oxygen Therapy.
Both Tom and Elena continue to be heavily involved with the veteran community. In fact, Extivita treats veterans under a program that funds North Carolina veterans to receive HBOT treatments for free. By using HBOT, they have been successful in treating PTSD, post-concussion symptoms, sleep disorders, quality & quantity of life, cognitive function, executive function, anxiety and depression — all of which are known symptoms that HBOT helps, and has been acknowledged in medical journals. Elena states that probably 99% of the veterans that are treated at their clinic have improved significantly.
Tom and Elena explain how Hyperbaric Oxygen helps veterans overcome PTSD symptoms – allowing them better sleep, improved relationships, and diminished suicidal thoughts. They also stress the importance of family, and how it’s truly critical for a veteran to have a caregiver helping and encouraging them through the entire process of care when they return home from the battlefield.
Tom tells a story of General Patt Maney. General Maney was injured in an IED explosion that destroyed the entire vehicle, and he suffered severe invisible injuries. General Maney had a very serious brain injury that left him with almost no short-term memory, and he was at mercy of his wife for almost a year. He was a laywer on the bench in the state of Florida, but his injury was preventing him from reentering. He was eventually treated by Dr. Eddie Zant with Hyperbaric Oxygen Therapy. His recovery was so amazing that he was able to reenter the law practice and sit as a judge! He established a veterans court system, and remains an integral piece in reforming the legislative approaches to the management of those veterans that have gone astray in the legal world.
PTSD can be completely life-altering for veterans, but Hyperbaric Oxygen Therapy is proving that it can and will give them their lives back. HBOT allows military service members to finally be able to sit at Thanksgiving dinner and not have to leave because the noise and stimulation is too much. Seeing our veterans finally heal has been one of the most rewarding things for Elena and Tom.
If only HBOT could be available to the active warfighter, someone that’s in the field and just got rattled by an IED. We would not only be sending our troops home with a healthier and clearer mind, we’d be healing the invisible battle wounds of war in a fraction of the time.
Join us next week for Part 2, when Tom and Elena will dive into a discussion about concussions.
Guests

Elena Schertz, NP - Clinic Manager at Extivita RTP
Elena attained her Bachelors of Science in Nursing from Michigan State University and received her Masters of Science in Nursing from Simmons University in Boston, MA. She has been practicing integrative medicine since 2010 and is currently working on her certification in functional medicine from the Institute of Functional Medicine.
Elena worked as a nurse in the pediatric oncology, cardiac, and surgical units at UNC hospitals for 15 years before deciding to work in integrative medicine. After years of working as a nurse, she decided to pursue her graduate degree, completing her masters with honors. She is board certified as a Family Nurse Practitioner (FNP) through the American Nurses Credentialing Center.
Elena’s passion for integrative medicine comes from her knowledge that the mind, body and psych/social/spiritual systems are not separate. The focus of Elena’s practice is to approach each of her patient’s healing process from the perspective of the whole, supported and grounded in safety and evidence-based medicine. She also maintains close consultative relationships with experts in the field to promote and enhance wellness for her patients. Elena joined the wonderful Extivita team in March 2019 and is thrilled to be a part of advancing health and wellness through hyperbaric medicine.

Thomas M. Fox, MAS,MS, CHT - Safety Director at Extivita RTP
Tom is the Research Physiologist for the Hyperbaric Institute for Research and Training, a division of Island Hyperbaric Centre in Pincourt QC. He has worked in the field of Clinical Hyperbaric Oxygen for the last 30 years. During this time, he has been intimately involved with the implementation and the development of the US Army’s Clinical Hyperbaric Service at Dwight David Eisenhower Army Medical Center. He has provided contract hyperbaric services since 1997. Prior to accepting his current position in Quebec, Canada, Mr. Fox served as the Chief of the Atmospherics Branch of the U.S. Army School of Aviation Medicine, Fort Rucker Alabama. In this capacity, he was responsible for hyperbaric/ hypobaric operations and training of US and NATO aviators, flight surgeons and flight medics. Mr. Fox is a senior army aviator and flew twelve years as a Medical Evacuation Pilot for the US Army.
Tom joined the Extivita team in 2022 as the Safety Director, helping Extivita to maintain a healthy and safe environment for exceptional patient care.
Extivita-RTP – Hyperbaric Oxygen Therapy Clinic
2012-D TW Alexander Drive
Durham, NC 27709
919-354-3775
919-354-3776
contact@extivita.org
https://www.extivita.org/
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Recent HBOT News
Clinical Trial – HBOT Late Radiation Tissue Injury
Background: Radiotherapy is a common treatment for many malignancies. Radiation-related
complications developing months or years after radiation treatment are known as late
radiation tissue injury (LRTI) and are estimated to effect 5%-15% of all long-term survivors
who have received radiation.
Hyperbaric oxygen therapy (HBOT) is a well established treatment of LRTI. Most of the studies
evaluating effect of HBOT on LRTI are focused on survival, resolution of tissue damage and
improvement in LENT-SOMA scale. Very few studies have addressed effect of HBOT on pain in
LTRI. Krahn and colleagues were the first to report the analgesic effect of HBOT in 3 cases
of refractory pain in oncological patients with radiation soft tissue injury. Other studies
showed significant improvement in pain intensity in patients with breast cancer and pelvic
malignancies treated with HBOT for LTRI. In patients that had developed radiation- induced
brachial plexopathy, HBOT elicited an increase in warm pain thresholds and a reduction in
lymphoedema. A prospective case study of 16 patients with gynecological cancer found no
changes with respect to pain and depression outcomes. A trial in patients with radiation
induced proctopathy showed that 75% of patients with rectal pain had some improvement,
although none experienced a complete resolution of pain symptoms.
There are several mechanisms by which HBOT may elicit analgesic effects. There is a growing
body of evidence that HBOT’s analgesic effect related to nitric oxide metabolism and
endogenous opioid secretion. Furthermore, the inhibition of tumor necrosis factor alph
(TNF-α), the production of substance P, and the modulation of serotonergic pathways have all
demonstrated a modification in the pain response following HBOT. In animal studies HBOT
decreased allodynia and hyperalgesia in different models of neuropathic and inflammatory
pain. The long lasting antinociceptive effect of HBOT was found to be dose-dependent in
non-injured tissues.
In human studies, HBOT decreased pain and edema and improved function in patients suffering
from the complex regional pain syndrome, and improved pain scores and range of motion in
patients with idiopathic femoral head necrosis. Women suffering from interstitial cystitis
demonstrated a reduction in pelvic pain following weeks and months of HBOT treatment. In
patients suffering from idiopathic trigeminal neuralgia HBOT produced a rapid reduction in
symptoms and these effects were lasting for 6 months following treatment. HBOT was also found
to be an effective treatment for cluster headaches and migraines and alleviated muscle and
bone pains in patients with myofascial syndrome, fibromyalgia, and biphosphonate-related
osteonecrosis of the jaw.
Based on the evidence presented above and HBOT’s known analgesic effect in many conditions,
the investigators designed this study with the objective to evaluate if HBOT reduces pain,
improves depression and impacts on patients quality of life in patients suffering from late
radiation tissue injury.
Study Design: Prospective observational study (n=300). Patients that have had radiation
therapy for malignancy, developed late radiation injury and suffer from chronic pain.
Clinical Trial – HBOT in Fibromyalgia
Fibromyalgia (FM) is a chronic pain condition affecting several millions of Canadians.
Although the etiology and pathophysiology are poorly understood, there is a well-recognized
association between muscular pain in fibromyalgia and muscular hypoperfusion, hypoxia,
abnormal muscle metabolism and oxidative stress. Currently there is no cure for FM.
Pharmacological and non-pharmacological strategies are directed to control symptoms such as
pain, fatigue, non-restorative sleep and depression.
Hyperbaric oxygen therapy (HBOT) is an intermittent inhalation of 100% oxygen in a hyperbaric
chamber at a pressure higher than 1 absolute atmosphere. Physiological effect of HBOT is
based on a dramatic increase in the amount of dissolved oxygen carried by the blood which
enables oxygenation of ischemic areas with compromised circulation. It also activates
oxidant-antioxidant system, stimulates angio- and neurogenesis, modulates inflammatory
response, induces brain neuroplasticity and possesses analgesic effect.
While some interventions offer benefit for some patients, additional treatment alternatives
are needed for patients with FM in whom currently available options are either ineffective or
poorly tolerated. Given its physiological effect, HBOT could be considered as a potential
therapy for treatment of underlying muscular hypoxia, optimizing oxidant- antioxidant system
and controlling FM symptoms. The results from this study could therefore provide new
information supporting the basic science underling the pathophysiology of this disease and
stimulate novel therapies for patients suffering with FM.
Thoracic spinal anesthesia is safe for patients undergoing abdominal cancer surgery.
Abstract: A double-blinded randomized controlled study to compare discharge time and patient satisfaction between two groups of patients submitted to open surgeries for abdominal malignancies using segmental thoracic spinal or general anesthesia. Open surgeries for...
