Hyperbaric Oxygen Therapy is a procedure that delivers increased amounts of oxygen to diseased or injured tissues. It is currently one of the most powerful tools available as an adjunctive form of therapy, and in many cases it works well as the primary therapy for horses. 100% Oxygen is delivered to the patient under increased atmospheric pressure; the procedure concentrates the oxygen available in the air breathed by the horse, which allows more oxygen to be dissolved into the blood plasma. As this oxygen rich or supersaturated plasma travels through the body via the bloodstream and flows across the cell membranes, it delivers oxygen to those cells to help heal and repair the diseased or injured tissues.