Oxygen supplementation for propofol-based deep sedation in colonoscopic procedure: a comparison between nasal cannula and face mask

Authors : Amornyotin S, Chalayonnawin W, Kongphlay S

DOI :

Volume : 3

Issue : 2

Year : 2020

Page No : 1-5

Background: The type of airway tool for oxygen supplementation has been under much debate. The aim of the study was to evaluate and compare the complication rate of propofol-based deep sedation (PBDS) for colonoscopic procedure in patients with oxygen supplement through nasal cannula and face mask during the procedure. Materials and Methods: A total of 2052 patients underwent colonoscopic procedures using PBDS in Siriraj Hospital. The primary outcome variable of the study was the complication rate during and immediately after procedure. The secondary outcome variables were sedation-related complications during and immediately after procedure. Results: After matching age, weight, body mass index, ASA physical status, and the indications of procedure, there were 98 colonoscopic procedures in nasal cannula group (N) and 104 procedures in face mask group (M). All sedation was given by residents or anesthetic nurses directly supervised by staff anesthesiologist in the endoscopy room. There were no significant differences in patients’ characteristics, sedation time, indications of procedure, overall complication rate, and sedation-related complications as well as the sedative agents used between the two groups. Conclusion: The complication rate during oxygen supplementation with nasal cannula or face mask for PBDS in colonoscopic procedure was comparable. Although, the complication rate in both groups was relatively high, all complications were easily treated, with no adverse sequelae.