Hyperbaric Oxygen Therapy
Hyperbaric oxygen therapy (HBOT) is a medical treatment that involves breathing pure oxygen in a pressurized chamber. The therapy is based on the principle that oxygen is essential for the proper functioning of the body's tissues and organs.
How it Works
In HBOT, the patient breathes 100% oxygen in a hyperbaric chamber, which is a specially designed chamber that can withstand high pressures. The pressure in the chamber is increased to 2-3 times the normal atmospheric pressure, allowing the oxygen to dissolve more easily into the bloodstream.
Benefits of HBOT
- Increased Oxygen Delivery: HBOT increases the amount of oxygen delivered to the body's tissues and organs, which can help to promote healing and reduce inflammation.
- Improved Wound Healing: HBOT has been shown to enhance wound healing by increasing oxygen delivery to the affected area, reducing bacterial growth, and promoting collagen synthesis.
- Reduced Inflammation: HBOT has anti-inflammatory properties, which can help to reduce swelling and promote healing in conditions such as arthritis and sports injuries.
- Improved Cognitive Function: Some studies have suggested that HBOT may improve cognitive function in individuals with traumatic brain injury, stroke, and other neurological conditions.
Conditions Treated with HBOT
HBOT is used to treat a variety of medical conditions, including:
- Carbon Monoxide Poisoning: HBOT is the primary treatment for carbon monoxide poisoning, as it helps to remove carbon monoxide from the bloodstream and restore oxygen delivery to the body's tissues.
- Decompression Sickness: HBOT is used to treat decompression sickness (the "bends") in divers, which occurs when gas bubbles form in the bloodstream due to rapid changes in pressure.
- Gas Gangrene: HBOT has been shown to be effective in treating gas gangrene, a potentially life-threatening condition caused by bacterial infection.
- Diabetic Foot Ulcers: HBOT may be used as an adjunctive treatment for diabetic foot ulcers, helping to promote wound healing and reduce the risk of amputation.
Risks and Side Effects
While generally considered safe, HBOT can cause some side effects, including:
- Middle Ear Barotrauma: The increased pressure in the hyperbaric chamber can cause ear pain or discomfort due to middle ear barotrauma.
- Sinus Pressure: Some individuals may experience sinus pressure or congestion during HBOT.
- Claustrophobia: The enclosed space of the hyperbaric chamber can cause anxiety or claustrophobia in some individuals.
Contraindications
HBOT is not suitable for everyone, and certain conditions may be contraindicated, including:
- Pneumothorax: Individuals with a collapsed lung (pneumothorax) should not undergo HBOT, as the increased pressure can worsen the condition.
- Severe Chronic Obstructive Pulmonary Disease (COPD): Individuals with severe COPD may experience respiratory distress during HBOT due to the increased pressure.
Training and Certification
HBOT is typically administered by trained healthcare professionals, including physicians, nurses, and hyperbaric technologists. The Undersea and Hyperbaric Medical Society (UHMS) provides training and certification programs for healthcare professionals in HBOT.
Frequently Asked Questions (FAQs)
What is hyperbaric oxygen therapy?
Hyperbaric oxygen therapy is a medical treatment that involves breathing pure oxygen in a pressurized chamber.
How does hyperbaric oxygen therapy work?
The increased pressure and oxygen levels help to increase oxygen delivery to the body's tissues, which can aid in healing and reduce inflammation.
What conditions are typically treated with hyperbaric oxygen therapy?
Conditions such as carbon monoxide poisoning, decompression sickness, and certain types of wounds or injuries, including diabetic foot ulcers.
Are there any risks or side effects associated with hyperbaric oxygen therapy?
Possible risks and side effects include ear or sinus problems, lung damage, and oxygen toxicity, although these are generally rare.
How long does a typical hyperbaric oxygen therapy session last?
Sessions can vary in length, but typically range from 30 minutes to several hours.
Is hyperbaric oxygen therapy painful?
Generally, no, hyperbaric oxygen therapy is not considered painful, although some patients may experience discomfort due to the pressure.
Can anyone receive hyperbaric oxygen therapy?
Not necessarily, as certain medical conditions or other factors may make it unsafe for some individuals to undergo this treatment.
Is hyperbaric oxygen therapy covered by insurance?
Coverage varies depending on the specific condition being treated and the insurance provider, with some conditions being more likely to be covered than others.
How many sessions of hyperbaric oxygen therapy are typically needed?
The number of sessions required can vary widely depending on the individual case and the condition being treated.
Are there any alternative treatments to hyperbaric oxygen therapy?
Depending on the specific condition, other treatment options may be available, although hyperbaric oxygen therapy is often used when other treatments have been ineffective.
Article last updated on: 18th October 2025.
If you have any feedback, please get in touch.
See more
Medical AI Assistant with Differentials, Guidance, Transcriptions, Notes, Medical Encyclopedia and Explainable AI.
Medical Disclaimer
The information provided is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay seeking it because of something you have read on this site. We we do not guarantee, and assume no legal liability or responsibility for the accuracy, currency, or completeness of the information provided.

