Understanding HBOT
A concise guide to what medical hyperbaric oxygen therapy is, how treatment works and what patients can expect.
What is hyperbaric oxygen therapy?
Hyperbaric oxygen therapy (HBOT) is a medical treatment in which a patient breathes oxygen while inside a chamber pressurized above normal atmospheric pressure. Under increased pressure, more oxygen can be carried in the plasma and delivered to tissues.
HBOT is not a stand-alone cure for most conditions. It is generally used as part of a broader treatment plan that may include surgery, antibiotics, wound care, vascular management or other specialist treatment.
What happens during treatment?
Before starting, patients are medically assessed for the indication, potential contraindications and factors that may affect pressure equalization or oxygen safety. During a session, chamber pressure is gradually increased to the prescribed level. Patients may notice ear pressure similar to takeoff or landing in an airplane.
Treatment duration, pressure and number of sessions vary by diagnosis. Your individual plan is discussed before therapy begins.
Potential risks and side effects
HBOT is generally well tolerated when appropriately prescribed and delivered, but it is not risk-free. Possible effects include ear or sinus barotrauma, temporary changes in vision, claustrophobia and changes in blood glucose. Rare complications include oxygen-related seizures or lung injury. Fire safety is also a major consideration in hyperbaric environments.
Does HBOT work for every condition?
No. HBOT has recognized medical indications, but evidence is not established for every condition promoted online. We do not present experimental or unsupported uses as equivalent to accepted indications. If you are asking about a condition outside established practice, the physician will discuss the evidence and whether treatment is appropriate.