Brain Damage
Neurosurgery, or trauma to the brain, causes swelling of the brain because of damage to the blood vessels associated with trauma and free radical injury associated with the release of free iron from hemorrhage. Oxygen therapy reduces tissue swelling - even in severe head injury (ref.)
Philip James M.D.
Wolfson Hyperbaric Medicine Unit
University of Dundee
Reference
Sukoff MH, Ragatz RE. Hyperbaric oxygenation for the treatment of
acute cerebral edema. Neurosurgery 1982;10:29-38.
Reprinted with Permission