Hypoxia during upper gastrointestinal endoscopy with and without sedation and the effect of pre-oxygenation on oxygen saturation

• Main Authors: Wang, C.Y., Ling, L.C., Cardosa, M.S., Wong, A.K.H., Wong, N.W.
• Format: Article
• Published: Wiley 2001
• Subjects: R Medicine
• Online Access: http://eprints.um.edu.my/26005/; https://doi.org/10.1046/j.1365-2044.2000.01520.x

In Study A, the incidence of arterial oxygen desaturation was studied using pulse oximetry (SaO2) in 100 sedated and 100 nonsedated patients breathing room air who underwent diagnostic upper gastrointestinal endoscopy. Hypoxia (SaO2 92% or less of at least 15 s duration) occurred in 17% and 6% of se...