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IMPORTANCE: The efficacy of a semirecumbent position (SRP) in reducing postoperative hypoxemia during anesthesia emergence is unclear despite its widespread use. OBJECTIVE: To determine the differences in postoperative hypoxemia between patients in an SRP and a supine position. DESIGN, SETTING, AND PARTICIPANTS: This randomized clinical trial was performed at a tertiary hospital in China between March 20, 2021, and May 10, 2022.
Key Points Question Does semirecumbent positioning during recovery from anesthesia reduce the incidence of postoperative hypoxemia? Findings In this randomized clinical trial that included 700 adults undergoing laparoscopic upper abdominal surgery, a 30° semirecumbent position during recovery from anesthesia reduced the incidence of postoperative hypoxemia from 47% in a supine position to 32%.
Introduction According to the United Nations Population report, the global population aged ≥60 years is expected to increase from 13.5% in 2020 to 22% in 2050.1 With population aging, the proportion of elderly patients undergoing surgery will also increase significantly.
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