Hyperbaric chamber for diabetic wound healing

Hyperbaric Oxygen Therapy (HBOT) is an established adjunctive treatment used for non-healing diabetic wounds, particularly diabetic foot ulcers (DFUs).

By breathing 100% pure oxygen at pressures 2 to 3 times greater than normal atmospheric pressure, patients increase the amount of oxygen dissolved in their blood plasma.

Clinical Benefits and Evidence

Studies generally show that HBOT can improve healing rates and reduce the necessity for major amputations when added to standard wound care.

• Healing Rates: Research has shown HBOT can significantly increase complete healing rates (e.g., from roughly 24% to 46% in some meta-analyses).

• Amputation Prevention: Use of the therapy is associated with a lower risk of major amputations in patients with severe ulcers.

• Mechanism of Action:

  • Angiogenesis: Stimulates the formation of new blood vessels.

  • Infection Control: Enhances the ability of white blood cells to kill bacteria and may have direct antibacterial effects.

  • Reduced Inflammation: Helps decrease swelling and modulates the inflammatory process.

    
    

    
    

    
    

  

When is it Used?

HBOT is typically not a first-line treatment. It is recommended for:

• Refractory Wounds: Diabetic foot ulcers that have failed to show significant healing (e.g., 50% size reduction) after 30 days of standard therapy.

• Severity: Often used for wounds graded Wagner 3 or higher (deep ulcers with abscesses or bone infections like osteomyelitis).

  
  

Treatment Protocol

• Frequency: Usually involves 30 to 60 sessions performed daily for 5 days a week.

• Duration: Each session typically lasts between 90 and 120 minutes.

• Setting: Patients enter a monoplace (single person) or multiplace (shared) chamber.

Risk Factors and Side Effects

While generally safe, common side effects include ear fullness or pain due to pressure changes, temporary vision changes, and, in rare cases, oxygen toxicity.

Patients with uncontrolled high blood sugar or certain lung conditions may not be suitable candidates.

Insurance and Coverage

HBOT is an FDA-approved and Medicare-covered treatment for specific diabetic foot ulcers, provided certain criteria for wound severity and lack of progress with standard care are met.