TY - JOUR T1 - Supplemental oxygen therapy in medical emergencies: More harm than benefit? AU - Cornet AD, Kooter AJ, Peters ML, Smulders YM Y1 - 2012/02/13 N1 - 10.1001/archinternmed.2011.624 JO - Archives of Internal Medicine SP - 289 EP - 290 VL - 172 IS - 3 N2 - Over the decades, however, potential detrimental effects of supplemental oxygen appear to have been ignored. Many clinicians are unaware of the variety of preclinical studies that have been executed, showing that hyperoxia causes both coronary and systemic vasoconstriction, resulting in deterioration of several important (hemodynamic) parameters (Table). The prime candidate mechanism for these unintended effects is believed to be the formation of reactive oxygen species. In this Research Letter, we draw attention to the collective clinical evidence, which argues against the routine use of high-dose oxygen. Awaiting more thorough studies, we strongly recommend a policy of careful, titrated oxygen supplementation. SN - 0003-9926 M3 - doi: 10.1001/archinternmed.2011.624 UR - http://dx.doi.org/10.1001/archinternmed.2011.624 ER -