HBOT Conversations:
Dr. Peter Canaday (Part 1)
Dr. Peter Canaday has published work in Applied Physiology, Respiratory Medicine, and Diagnostic Radiology. He has presented at National (USA) and International meetings, and his research supported the eventual FDA approval of a new medical imaging device incorporating digital X-ray tomosynthesis. He has sat on National, State, and Local advisory committees, and given testimony at the State Legislative level in the USA.
Dr. Canaday’s experience with Hyperbaric Oxygen Therapy dates back to the 1980s when he studied HBOT under Dr. Eric Kindwall, “The Father of Hyperbaric Medicine”. Dr. Canaday also co-founded the Hyperbaric Medicine Department at St. Anthony Hospital in Lakewood, Colorado.
From 2007, Dr. Canaday spent time in community radiology practices before settling in New Zealand in 2013 as a Consultant Radiologist. Since 2016, he was employed at a Midlands region DHB and served as Head of Department before retiring in March 2021.
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HBOT News welcomes Dr. Peter Canaday. Dr. Canaday now lives primarily in New Zealand, but his history with medicine and Hyperbaric Oxygen Therapy dates back over 40 years to the United States.
In this HBOT News Network Conversations, Dr. Canaday spends the first several minutes providing listeners with his biography and medical background. He also dives into his experience with Hyperbaric Oxygen Therapy in the 1980s.
The subject of PTSD and recent Hyperbaric research arises, and Dr. Canaday expands on the topic by referencing two research articles from Dr. Paul G. Harch –
Dr. Canaday further explains, “There is a recruitment of the anti-inflammatory enzymes and a suppression of the pro-inflammatory enzymes that can be achieved through even these lower pressure units. And so we’re beginning to see now the potential mechanism for which Hyperbaric Therapy, whether with or without oxygen, may be effective.”
The remainder of this HBOT News Conversation is specific to the topic of COVID-19. di Girolamo starts the conversation discussing the struggles for long-hauler COVID patients and the growing number of vaccine injuries as a result of the COVID-19 vaccine. Dr. Canaday agrees that the scientific inquiry for COVID-19 and the available information for associated vaccines has been widely suppressed. He continues that even the data which represent conclusions from peer-reviewed literature has been simply ignored, or set aside without discussion.
In response, Dr. Canaday provides viewers with direct links on how they can learn more about some of the data and information he’s shared with the public regarding the COVID-19 vaccine roll-outs:
Dr Peter Canaday – Pfizer Vaccine Discussion At The Town Hall
Courageous Convos with Special Guest Peter Canaday
Voices of Freedom on Odysee : search Peter Canaday
Dr. Canaday’s HBOT News Conversations is a two part series. Part 2 will air on Friday, December 16, 2022.
This HBOT News Conversation was filmed on October 4, 2022
Guest

Dr. Peter Canaday
Following completion of medical school at the University of Massachusetts in 1976, Dr. Peter Canaday took up training as an Internal Medicine specialist at the University of Michigan, followed by sub-specialist training in Respiratory and Intensive Care at the University of North Carolina. He began his medical career in a busy trauma hospital in Denver, Colorado in 1981 and practiced for 12 years. During his time there, he managed many of the types of patients now seen with severe COVID-19, co-founded a sleep disorders laboratory and a hyperbaric medicine department. As well, he participated in a dozen committee assignments, and rose to Chairman of the Department of Internal Medicine. In 1993, Dr Canaday changed career and completed training as a Radiologist at the University of Wisconsin in 1997. During an 8-year period at Creighton University Medical School in Nebraska, he became tenured as an Assistant Professor of Radiology, and head of the section of Pulmonary Radiology. He also served on or chaired over a dozen hospital and medical school committees and was appointed Clinical Coordinator for the Radiology Department during his time there. Dr Canaday has also published work in applied physiology, respiratory medicine, and diagnostic radiology, has presented at national (USA) and international meetings, and his research supported the eventual FDA approval of a new medical imaging device incorporating digital X-ray tomosynthesis. He has sat on national, state, and local level advisory committees and given testimony at the state legislative level in the USA. From 2007, Dr Canaday spent time in community radiology practices before settling in New Zealand in 2013 as a Consultant Radiologist. Since 2016, he was employed at the Taranaki District Health Board and served as Head of Department before retiring in March 2021.
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Recent HBOT News
Clinical Trial – Intrathecal Neostigmine for Prevention of PDPH
Neuraxial blocks continue to be the cornerstone of anesthesia and postoperative analgesia for
normal vaginal delivery and elective caesarean section due to its approved safety and
efficiency for decades. Post-dural puncture headache (PDPH) is still one of the most common
complications of neuraxial anesthetic techniques. The headache could be severe and limit the
activities of the new mother to care for her baby, prolong hospital stay.
PDPH is defined as a headache that develops within five days of dural puncture and can’t be
attributed to any other types of headache and mostly is postural in character.
Neostigmine methylsulfate is a synthetic carbamic acid ester which reversibly inhibits the
enzyme Acetylcholine esterase (AChE) that makes more Acetylcholine molecules available at
cholinergic receptors. Neostigmine is used in anesthesia mainly as a reversal for
non-depolarizing neuromuscular agents.
Intrathecal (IT) neostigmine was tried as an adjuvant to local anesthetics in IT block for
elective cesarean sections to decrease local anesthetic consumption and to prolong
postoperative analgesia. Side effects of IT neostigmine are dose-dependent with doses more
than 25 µg especially nausea and vomiting and could be decreased by increasing the baricities
of the local anesthetic solutions and by early head up position after IT injection. However,
its effect on PDPH was not investigated before in literature.
Parturients will be randomly assigned into one of two groups: the intervention group will
receive 20 µg with IT Bupivacaine and the control group will receive an equivalent volume of
dextrose 5% with the IT Bupivacaine.
The objective of the current study is to evaluate the efficacy and safety of IT neostigmine
as an adjuvant to bupivacaine in reducing the incidence and severity of post-dural puncture
headache in parturients scheduled for an elective cesarean section.
Evidence brief: hyperbaric oxygen therapy (HBOT) for traumatic brain injury and/or post-traumatic stress disorder.
This report is a product of the VA Evidence-based Synthesis Program. The purpose is to provide “timely and accurate syntheses of targeted healthcare topics. to improve the health and healthcare of Veterans”. The authors have made a comprehensive search and analysis of the literature and make recommendations to assist clinicians in dealing with veterans suffering from either traumatic brain injury (TBI) or post-traumatic stress disorder (PTSD). The report is timely and of great potential impact given the vigorous and lengthy debate among hyperbaric physicians and lay people determined to find an answer for the large numbers of veterans deeply affected with some combination of PTSD and post-concussion dysfunction.
Clinical Trial – Hyperbaric Oxygen Therapy in Children With Inflammatory Bowel Diseases
The study assesses the effectiveness of hyperbaric oxygen therapy in the treatment of
inflammatory bowel disease in children.
