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HBOT for Arterial Insufficiency Ulcers: How Oxygen Therapy Supports Healing When Circulation Is Limited

Other Medical Conditions and HBOT | Published: April 20th 2026, 02:28PM

Discover how breathing pure oxygen could be the missing piece in your wound care plan

When a wound won’t heal, the frustration is real. For patients with an arterial insufficiency ulcer, standard wound care often isn’t enough. That’s because the problem runs deeper than the wound itself. Continue reading to learn how HBOT can help.

 

What Is an Arterial Insufficiency Ulcer?

An arterial insufficiency ulcer is an open sore that develops when poor blood flow deprives tissue of the oxygen it needs to heal. Most commonly caused by peripheral artery disease (PAD), these wounds typically appear on the lower legs, feet, or toes and are known for being intensely painful and slow, or impossible, to heal with standard care alone.

Common symptoms include:

  • Persistent leg or foot pain, often worse at night
  • Open wounds with defined, “punched-out” edges
  • Skin that appears pale, cool, shiny, or hairless around the wound
  • Wounds that show little to no healing progress over weeks or months [1]

Risk factors include diabetes, smoking, high blood pressure, high cholesterol, and a history of cardiovascular disease.

 

Learn more:
HBOT and Heart Health: Can Hyperbaric Oxygen Therapy Improve Cardiac Function?

 

Why are these wounds so hard to heal?

Healing depends on oxygen-rich blood reaching damaged tissue. In patients with arterial insufficiency, the delivery system is compromised. Standard wound care can treat the surface, but it can’t compensate for the oxygen deficit driving the problem. That’s exactly where HBOT comes in.

 

Related resource:
How Does Hyperbaric Oxygen Therapy Heal Wounds?

 

How HBOT Helps

During HBOT, patients breathe 100% oxygen inside a pressurized chamber. This treatment allows oxygen to dissolve directly into the blood plasma, reaching tissue that restricted circulation can’t adequately supply. For arterial insufficiency ulcers, the key benefits include:

  • Restored oxygen to hypoxic tissue, creating the conditions the body needs to repair itself.
  • Reduced inflammation, interrupting the cycle that keeps wounds stuck.
  • New blood vessel growth that improves long-term oxygen supply to under-perfused tissue.
  • Reduced amputation risk: research shows HBOT may significantly lower major amputation rates in patients with lower extremity wounds complicated by arterial insufficiency.

A study on non-healing arterial insufficiency ulcers reported a 43.9% healing rate with HBOT and a 0% amputation rate among patients who healed, compared with 42.4% in those who did not heal. [2]

 

Heal with us

HBOT works best as part of a comprehensive care plan. At HHTC, we evaluate each patient thoroughly to determine if hyperbaric oxygen therapy is the right fit. Unlike hospital-based facilities, which are limited by narrow treatment guidelines, we’re able to treat a broader range of patients, including those who feel they’ve run out of options.

 

If you’re living with a wound that won’t heal, we’d love to help you explore what’s possible.

Schedule a consultation today

 

1: Mayo Clinic | Vascular Ulcer
2: PubMed | Hyperbaric oxygen for the treatment of nonhealing arterial insufficiency ulcers

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