Hyperbaric Oxygen for Diabetic Wounds: Research Summary

By Rubicon Foundation editorial team

6 min read · 27 October 2026

Evaluation of hyperbaric oxygen for diabetic wounds: a prospective study is a 1997 journal article by Zamboni WA, Wong HP, Stephenson LL and Pfeifer MA. Published in Undersea Hyperb Med 24(3), it addresses the use of pressurised oxygen in diabetic wound care, a clinical question at the intersection of tissue repair and hyperbaric medicine.

What is the clinical question?

Diabetes can impair wound healing through several interacting effects, including reduced circulation, nerve damage and changes in immune function. A wound may therefore persist even when it receives ordinary care, particularly if the tissues around it have limited oxygen supply.

Hyperbaric oxygen therapy involves breathing oxygen in a pressurised chamber. The article’s subject is whether this approach has a role in treating diabetic wounds. A prospective study is a design in which people are followed forward under a planned assessment; the term alone does not tell you how treatment was delivered or how outcomes were measured.

Why does oxygen matter to a wound?

Oxygen supports processes involved in tissue repair, including collagen formation, immune defence and the activity of cells that build new tissue. Wound oxygenation depends not just on the oxygen available in the surrounding air, but also on blood flow and the ability of blood to carry oxygen to the affected area.

In a hyperbaric chamber, increased pressure raises the amount of oxygen dissolved in blood plasma. This can increase oxygen delivery to tissues, including areas where circulation is compromised. It does not correct every cause of poor healing: infection, pressure on the wound, inadequate blood supply and metabolic factors still require attention.

That distinction matters clinically. A change in tissue oxygenation is a physiological effect, not by itself proof that a wound will close or that a treatment improves a patient’s overall health.

How does this fit into hyperbaric medicine?

Hyperbaric medicine studies how raised ambient pressure and oxygen exposure affect the body, and how those effects may be used in clinical care. The field includes established questions about oxygen toxicity, pressure-related effects and the conditions under which oxygen delivery changes tissue physiology.

Diabetic wounds bring those mechanisms into a complicated clinical setting. A wound is not an isolated oxygen problem: clinicians must consider blood supply, infection, wound care and the person’s broader diabetes management. Research on hyperbaric oxygen therefore sits alongside, rather than outside, the wider work of assessing wound healing and treatment choices.

For divers, the subject is relevant because diving medicine and clinical hyperbaric care both deal with oxygen under pressure, but they do not use it for the same purpose. A treatment chamber is a controlled medical environment; recreational or occupational diving is not a substitute for prescribed hyperbaric therapy.

What should readers consider when assessing studies of this kind?

A prospective design can clarify how a clinical question was investigated, but its strength depends on the methods and the outcomes chosen. When assessing a study, readers need to distinguish wound-level measures from broader outcomes such as complications, treatment burden or durability of healing.

Patient and wound characteristics: diabetes, circulation, infection and wound severity can affect healing.
Comparison and care: results need to be understood in the context of other wound treatments and the study’s comparison approach.
Treatment details: pressure, oxygen exposure, treatment schedule and adherence shape what intervention was actually assessed.
Outcomes and follow-up: wound closure, time to healing and recurrence answer different clinical questions.

These are general questions for interpreting clinical research, not claims about the methods or outcomes of this particular article. The publication record identifies the subject and its prospective design; readers seeking its detailed methods should consult the journal article.

What does this mean for divers and clinicians?

The article’s topic is a reminder that hyperbaric oxygen is a medical intervention with a defined clinical context, not a general remedy for impaired healing. Treatment decisions depend on the wound, the patient’s health, the available alternatives and the risks of chamber exposure.

Divers with diabetes or a persistent wound should not use diving or self-directed oxygen exposure as treatment. A diving-medicine physician can assess fitness to dive, while wound and hyperbaric clinicians can address medical care; individual decisions belong with the relevant clinicians.

Frequently asked questions

What does hyperbaric oxygen therapy involve?

It involves breathing oxygen in a pressurised chamber. Increased pressure raises oxygen dissolved in blood plasma, which can affect oxygen delivery to tissues.

Why are diabetic wounds difficult to heal?

Diabetes can affect circulation, sensation and immune function. These factors may combine with infection or pressure on a wound to hinder repair.

Is chamber therapy the same as scuba diving?

No. Medical hyperbaric treatment takes place in a controlled clinical setting for a medical purpose. Diving is a separate activity and does not replace prescribed care.

Citation details

Title: Evaluation of hyperbaric oxygen for diabetic wounds: a prospective study
Authors: Zamboni WA, Wong HP, Stephenson LL, Pfeifer MA
Year: 1997
Published in: Undersea Hyperb Med 24(3)
Identifiers: PMID 9308140
Record type: Journal article
Repository record: Rubicon Research Repository, handle 123456789/2279

This page is an original summary written by the Rubicon editors from the publication’s bibliographic record. It does not reproduce the paper, its abstract or its data; consult the publication itself for its methods and findings.