Association Between Type of Sedation and the Adverse Events Associated with Gastrointestinal Endoscopy: An Analysis of Five Years’ Data from a Tertiary Center in the USA

This is a retrospective, single institution study, based in the analysis of more than 70000 procedures. A total of 163 adverse events were reported including 13 cases of cardiac arrest. The analysis shows that propofol anesthesia was associated with more incidence of adverse events than midazolam-fentanyl combined. It might look controversial although several factors still need to be considered.

https://www.ncbi.nlm.nih.gov/pubmed/27126387