Anesthesia and analgesia
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Anesthesia and analgesia · Jun 2008
Review Meta AnalysisDoes supplemental oxygen reduce postoperative nausea and vomiting? A meta-analysis of randomized controlled trials.
Studies on the ability of supplemental oxygen to decrease the incidence of postoperative nausea and vomiting (PONV) are inconsistent, with initial studies suggesting benefit while subsequent trials demonstrate no decrease in PONV. ⋯ The positive results of two initial studies reducing the risk for PONV in patients given 80% Fio(2) were not confirmed by any of the subsequent trials. Considering all available evidence, 80% Fio(2) should no longer be considered an effective or reliable method to reduce overall PONV.