Hyperbaric oxygenation (1 atm. of pure oxygen, 60 min. exposure) resulted in a sharp increase of the endogenous lipoperoxidation level in humans which was evaluated by the pentane content in the exhaled air. That activation of endogenous lipid peroxidation was a short-term process: 2-3-fold increase of pentane content 10 min after exposure to hyperbaric oxygenation and levelling off to control values in 1 hour. It is recommended to use determination of endogenous lipid peroxidation by the pentane content in the exhaled air in order to find optimal regimens of hyperbaric oxygenation.
Prilipko, Orlov, Kagan, Savov, Saltanov, , , , (1983). [Accumulation of gaseous products of lipid peroxidation in the expired air of human subjects during hyperbaric oxygenation]. Biulleten’ eksperimental’noi biologii i meditsiny, 1983 Oct;96(10):24-6. https://www.ncbi.nlm.nih.gov/pubmed/6626724