Hyperbaric Oxygen Therapy for Radiation Injury
What is Radiation Injury?
Radiation injury occurs when healthy tissues are damaged by ionizing radiation, most commonly
during cancer treatments. While radiation targets tumors, it can also cause cell death, fibrosis,
and chronic hypoxia in surrounding soft tissues and bone. Common manifestations include:
- Osteoradionecrosis: Bone death often affecting the jaw after head/neck radiation.
- Radiation Proctitis & Enteritis: Inflammation and ulceration of the rectum or intestines.
- Radiation Cystitis: Bladder irritation, bleeding, and reduced capacity.
- Soft Tissue Necrosis: Skin breakdown, fibrosis, and poor wound healing.
- Mucositis & Xerostomia: Ulceration and dry mouth impacting quality of life.
Why HBOT Is Effective
HBOT delivers 100% oxygen at pressures above 1 ATA, dramatically increasing oxygen dissolved in plasma.
This super-oxygenation counteracts the hypoxic, fibrotic environment created by radiation, triggering
powerful healing processes:
- Angiogenesis: Stimulates growth of new capillaries to restore blood flow in hypoxic tissue.
- Fibroblast Activation: Enhances collagen synthesis and softens fibrotic scar tissue.
- Stem Cell Mobilization: Promotes recruitment of bone marrow stem cells to injured sites.
- Anti-inflammatory Effects: Reduces chronic inflammation and edema in irradiated areas.
- Improved Wound Healing: Speeds closure of chronic ulcers and mucosal breakdowns.
Clinical Protocols & Evidence
The Undersea & Hyperbaric Medical Society (UHMS) and FDA recognize HBOT for “Delayed Radiation Injury,”
covering both soft tissue and bony necrosis. Typical treatment protocols:
- Pressure: 2.0 – 2.5 ATA (30 – 50 ft equivalent)
- Duration: 90–120 minutes per session
- Frequency: 5 sessions per week
- Total Sessions: 30 – 40 treatments
Numerous studies demonstrate HBOT’s success rates of 70 – 90% for osteoradionecrosis and significant
improvement in radiation-induced soft tissue injuries.
Who Should Consider HBOT?
- Patients with chronic non-healing wounds post-radiation
