Elevations in End-Tidal CO 2 With CO 2 Use During Pediatric Endoscopy With Airway Protection: Is This Physiologically Significant?

ABSTRACT:

Background

Inflation of the gastrointestinal lumen is vital for proper visualization during endoscopy. Air, insufflated via the endoscope, is gradually being replaced with carbon dioxide (CO 2 ) in many centers, with the intention of minimizing post-procedural discomfort due to retained gas. Recent studies suggest that the use of CO 2 during pediatric esophagogastroduodenoscopy (EGD) with an unprotected airway is associated with transient elevations in exhaled CO 2 (end-tidal CO 2 , EtCO 2 ), raising safety concerns. One possible explanation for these events is eructation of insufflation gas from the stomach.

Objectives

To distinguish eructated versus absorbed CO 2 by sampling EtCO 2 from a protected airway with either laryngeal mask airway (LMA) or endotracheal tube (ETT),

SUBMITTER: Dike CR 

PROVIDER: S-EPMC10097482 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature