This has been my experience; "Many hospitals have HBOT chambers, but they never use them for stroke recovery. It’s inexplicable. Restoring cerebral blood flow and oxygen delivery is the primary goal in the treatment of acute stroke. HBOT is a natural therapy for stroke that has a good chance of reducing irreversible brain damage, even in the 96 percent of patients who miss the tPA treatment window. But they aren’t even told about it!"