What Is the Utility of End-Tidal Capnography for Procedural Sedation and Analgesia in the Emergency Department?

The search parameters identified 3,311 total studies, of which 3 studies (n=1,272 participants) met the inclusion criteria for this review. The participants in these studies included both pediatric and adult patients. The studies were all performed at single-center academic EDs in the United States and Canada. All studies excluded critically ill patients and one study excluded pediatric patients receiving supplemental oxygen at baseline. The definitions of the primary outcome of oxygen desaturation varied by study, including less than 93% for greater than 15 seconds (n=132),2 less than 90% for greater than 30 seconds (n=986),3 and less than 95% for any duration (n=154).

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