Hyperbaric Oxygen Therapy means the delivery of oxygen under pressure at different 'depths' or 'atmospheres'. People use HBOT for a number of reasons to help with neurological conditions, cancer, diabetes, sports injuries, tinnitus, stubborn infections and ulcers. It can also speed up wound healing and recovery from radiotherapy damage. Under the right conditions, brain tumours don't like oxygen. Typically for brain cancer patients an oncologist would only advise the treatment for radiation induced necrosis and you would most likely have to ask. Radiation necrosis can be a huge problem because it can cause a lot more mutations. I never had this problem thankfully but I would recommend HBOT to help treat any cancer. Regarding radiation necrosis: 'In the clinical situation of a recurrent astrocytoma (postradiation therapy), radiation necrosis presents a diagnostic dilemma. Astrocytic tumours can mutate to the more malignant glioblastoma multiforme. Glioblastoma ...