A medical treatment in which patients breathe pure oxygen while inside a pressurized chamber, typically at pressures 2-3 times normal atmospheric pressure. It is used to treat decompression sickness, carbon monoxide poisoning, and certain wound healing disorders.
From Greek 'hyper' meaning above or beyond, and 'baros' meaning weight or pressure, combined with oxygen. The term reflects the treatment's use of oxygen at pressures higher than normal atmospheric conditions.
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