Hyperbaric Oxygen Therapy

What Is Hyperbaric Oxygen Therapy?

Hyperbaric oxygen therapy is a specialized medical treatment designed to flood damaged body tissues with high concentrations of oxygen. Under normal conditions, we breathe atmospheric air containing approximately 21 percent oxygen, and that oxygen is carried through the body almost entirely by red blood cells. During hyperbaric therapy, a patient rests inside a chamber pressurized to between two and three times normal atmospheric pressure while breathing 100 percent pure oxygen.

This increased barometric pressure forces oxygen to dissolve directly into blood plasma, lymph, and cerebrospinal fluid. As a result, oxygen can reach areas with damaged or constricted blood vessels where red blood cells cannot easily pass, counteracting severe tissue hypoxia and creating an optimal biochemical environment for wound healing.

Why Is Hyperbaric Oxygen Therapy Used?

Chronic and complex wounds frequently stall because the surrounding tissue does not receive adequate oxygen to sustain normal cellular repair. Cells involved in healing—such as fibroblasts and immune cells—rely heavily on oxygen to produce energy, kill bacteria, and lay down new tissue.

Hyperbaric oxygen therapy addresses several biological barriers to healing by:

• Stimulating New Blood Vessel Growth: Elevated oxygen levels trigger growth factors that drive angiogenesis, creating new capillary networks in poorly perfused tissues.
• Enhancing Infection Control: White blood cells require oxygen to generate the oxidative burst needed to destroy invading pathogens, helping manage deep infections like chronic refractory osteomyelitis.
• Promoting Matrix Synthesis: High tissue oxygenation supports the cellular production of collagen, strengthening the structural foundation of the repair site.
• Reducing Edema: The therapy induces mild vasoconstriction without reducing oxygen delivery, which helps decrease localized tissue swelling.

Clinicians frequently evaluate HBOT for complex conditions such as severe diabetic foot ulcers, compromised surgical flaps or skin grafts, radiation tissue injury, and certain deep, limb-threatening infections.

What to Expect During Treatment

Hyperbaric sessions are administered in either a monoplace chamber (designed for one individual) or a multiplace chamber (accommodating multiple patients). Before entering, patients change into specialized cotton clothing, as strict safety guidelines prohibit electronics, petroleum-based skin products, and metal items inside the high-oxygen environment.

As the chamber pressurizes, patients typically experience a sensation of fullness in their ears, very similar to descending in an airplane. Clinicians instruct patients on simple techniques, such as swallowing or yawning, to clear their ears. A typical treatment session lasts between 90 and 120 minutes. During this time, patients can rest, listen to music, or watch television. Once the prescribed time is complete, the chamber is slowly depressurized back to normal atmospheric levels.

Limitations and Potential Risks

While hyperbaric oxygen is generally well-tolerated, it requires careful screening to identify contraindications, such as untreated pneumothorax or certain chemotherapy medications. Potential risks include middle ear barotrauma, temporary vision changes (such as mild, reversible nearsightedness), sinus discomfort, and, in rare instances, oxygen toxicity. It is not an isolated cure; successful outcomes depend on addressing systemic health, blood sugar control, and underlying vascular disease.

Role in an Integrated Wound Care Plan

Hyperbaric oxygen is never a standalone treatment; it functions as an adjunctive therapy within a comprehensive wound management plan. For wounds to progress, tissue must first be properly prepared through interventions like sharp debridement to clear non-viable material, appropriate offloading or compression, and advanced moisture-balancing dressings.

At Anchor Wound Management, specialized clinicians evaluate whether advanced modalities are appropriate for complex conditions like post-surgical wounds or refractory ulcers. Through our clinic in Plano and comprehensive mobile wound care across Dallas-Fort Worth, our team coordinates every element of care to help preserve limbs and support tissue recovery. If you or a loved one is dealing with a stalled or complex wound, reach out to our team via our contact page to explore your care options.