Detection of hypoventilation during deep sedation in patients undergoing ambulatory gynaecological hysteroscopy: a comparison between transcutaneous and nasal end-tidal carbon dioxide measurements

Tcco2 demonstrated better agreement with Paco2 than Pe′co2 for patients under MAC with deep sedation. Tcco2 monitoring was more sensitive for detection of Paco2 >6.65 kPa than Pe′co2.