Surgery is not merely a mechanical event — it is a controlled stress on the body. How well you recover depends significantly on how well-prepared your body is before the procedure begins. This is the principle behind prehabilitation: proactively building physiological resilience before surgical stress.
Hyperbaric oxygen therapy (HBOT) fits naturally into this model. Even at mild pressures (1.4–1.5 ATA), increased oxygen availability triggers measurable biological adaptations. This article explains what the research shows, how HBOT fits within a broader preparation strategy, and what realistic expectations look like.
Surgery as Controlled Stress: The Case for Prehabilitation
Prehabilitation targets four core physiological goals before surgery:
- Improve oxygen delivery to tissues
- Reduce baseline systemic inflammation
- Optimise cellular energy production
- Support immune response capacity
HBOT supports all four. At mild pressures, increased oxygen availability stimulates antioxidant systems, influences inflammatory signalling, and improves how cells handle oxidative stress. The result is a body better conditioned to withstand and recover from surgical demands.
What the Research Currently Shows
The strongest clinical evidence for HBOT in surgical contexts comes from higher-pressure settings (2.0–2.5 ATA), particularly in cardiac surgery. Key demonstrated outcomes include:
- Improved tissue oxygenation
- Reduced inflammatory response
- Shorter ICU stays in select patient populations
Evidence at Mild Pressure (1.4–1.5 ATA)
Large-scale clinical trials demonstrating reduced surgical complications at mild HBOT pressures are not yet available. However, the existing body of evidence does show:
- Human studies confirming anti-inflammatory and antioxidant responses
- Oxygen-driven cellular adaptation mechanisms
- Small peri-operative reports suggesting tissue support benefits
Mild HBOT is therefore not positioned as a clinical surgical intervention, but its biological effects align with the goals of pre-operative preparation: lower inflammation, better oxygenation, and improved physiological resilience.
HBOT as Part of a Multimodal Preparation Approach
The most significant error when evaluating any single therapy is treating it in isolation. Surgical preparation research consistently demonstrates that combined, systemic strategies outperform individual interventions. HBOT is most meaningful when positioned as one layer within a broader protocol.
Complementary Approaches with Supporting Evidence
Nutritional Optimisation Targeted pre-operative nutrition — particularly omega-3 fatty acids and protein adequacy — has been shown to reduce inflammatory markers, support immune response, and aid post-surgical recovery.
Photobiomodulation (Red Light / Near-Infrared Therapy) Clinical evidence supports reductions in post-operative swelling and inflammation, improved tissue recovery, and decreased pain perception.
Metabolic Strategies Low-carbohydrate dietary approaches can, in selected individuals, improve insulin sensitivity and reduce systemic inflammatory load ahead of surgery.
When HBOT is layered into this framework — increasing oxygen availability, improving cellular efficiency, and supporting anti-inflammatory pathways — its contribution is amplified. It acts on the same biological targets as these other strategies, creating a compounding effect.
At Rebalance Wellbeing Hub CIC, we offer Hyperbaric Oxygen Therapy as part of a structured wellbeing and recovery approach. Our team can help you understand whether HBOT might be a useful addition to your pre-operative preparation plan.
What HBOT Can and Cannot Offer
| What HBOT May Support | What HBOT Does Not Do |
|---|---|
| Increased oxygen delivery to tissues | Replace surgical or medical care |
| Modulation of inflammatory response | Guarantee improved surgical outcomes |
| Activation of antioxidant defence systems | Act as a proven standalone pre-operative intervention at mild pressures |
| Improved cellular energy production (ATP) | Substitute for clinical advice from your GP or specialist |
| Better physiological resilience before surgical stress | Remove the need for nutrition, exercise, or other pre-operative preparation |
Frequently Asked Questions
Is HBOT safe before surgery?
HBOT is generally considered safe when delivered by trained professionals at appropriate pressures. Always consult your GP or surgeon before beginning any pre-operative wellbeing programme, including HBOT.
What pressure is used for surgical preparation?
Clinical studies showing clear surgical benefit typically use 2.0–2.5 ATA in medical hyperbaric facilities. Mild HBOT at 1.4–1.5 ATA, used in wellness settings, shows anti-inflammatory effects but has less direct surgical outcome evidence at this pressure range.
How many sessions are recommended before surgery?
There is no universally agreed protocol for pre-operative mild HBOT. Session numbers vary by provider and individual context. This should be discussed with both your HBOT provider and your surgical team.
Can HBOT replace other pre-operative preparation?
No. HBOT is not a standalone solution and does not replace medical advice, nutritional support, exercise, or other clinically recommended pre-operative preparations. It works best when integrated within a broader wellbeing plan.
Where can I access HBOT as part of a wellbeing programme?
Rebalance Wellbeing Hub CIC offers Hyperbaric Oxygen Therapy as part of a structured wellbeing and recovery programme at our Oxford location. You can register your interest or contact our team for more information.
What is the right question to ask before starting?
The right question is not: "Does HBOT work?"
It is: "How well prepared is my body to recover?"
HBOT can play a meaningful supporting role in answering that question — particularly when integrated with nutrition, lifestyle optimisation, and targeted complementary strategies. Better outcomes come from better preparation, not from any single intervention.
References
Alex, J. et al. (2005) 'Pretreatment with hyperbaric oxygen and its effect on myocardial injury and inflammatory response in coronary artery bypass surgery', The Journal of Thoracic and Cardiovascular Surgery, 130(6), pp. 1623–1630.
Bosco, G. et al. (2014) 'Hyperbaric oxygen therapy in pancreatic surgery: a randomised controlled pilot study', Undersea and Hyperbaric Medicine, 41(2), pp. 135–142.
Braga, M. et al. (1996) 'Perioperative immunonutrition in patients undergoing cancer surgery', Archives of Surgery, 131(12), pp. 1257–1264.
Ho, D. et al. (2019) 'Hyperbaric oxygen therapy for reducing complications in osmidrosis surgery', Journal of Plastic, Reconstructive & Aesthetic Surgery, 72(6), pp. 1023–1029.
Li, J. et al. (2011) 'Repeated hyperbaric oxygen preconditioning improves myocardial and cerebral protection in coronary artery bypass graft surgery', Journal of Cardiothoracic Surgery, 6(1), p. 52.
Stong, B. and Jacono, A. (2024) 'Hyperbaric oxygen therapy in aesthetic facial surgery', Facial Plastic Surgery & Aesthetic Medicine.
Thom, S.R. (2011) 'Hyperbaric oxygen: its mechanisms and efficacy', Plastic and Reconstructive Surgery, 127(Suppl 1), pp. 131S–141S.
Weis, S. et al. (2021) 'Hyperbaric oxygenation induces antioxidative response and modulates inflammation', Oxidative Medicine and Cellular Longevity.
This article is for informational purposes only and does not constitute medical advice. Always consult your GP or specialist before starting any new therapy, particularly in the context of a planned surgical procedure.