Why the study?
Early postoperative hypoxemia is a frequent complication in the PACU following emergency surgery, with particular concern regarding anesthesia-ended time-related risk during nighttime.
Early postoperative hypoxemia is highly prevalent (42.3%) after emergency surgery under general anesthesia, with nighttime anesthesia ending and ASA III being major risk factors.
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High EPH incidence in emergency cases warrants close PACU monitoring and supplemental oxygen; leaves open independent nighttime risk after adjustment.
Berhanu et al. (2023) studied this question.
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