DAD colorimetric end-tidal carbon dioxide monitor: a device for confirming endotracheal intubation
- Author:
David Dennis Augusto A.
- Publication Type:Journal Article
- MeSH:
Human;
Aged 80 and over;
Aged;
Middle Aged;
Adult;
Young Adult;
Adolescent;
INTUBATION, INTRATRACHEAL
- From:
Philippine Journal of Anesthesiology
2003;15(2):43-47
- CountryPhilippines
- Language:English
-
Abstract:
Background: Rapid confirmation of proper endotracheal placement is imperative in every patient subjected to tracheal intubation. Unrecognized esophageal intubation can lead to hypoxia, neurologic injury and cardiac arrest
Objectives: The general objective of this study was to determine the accuracy of an improvised device, the DAD colorimetric end-tidal carbon dioxide monitor, for confirming tracheal intubation, using capnography as the gold standard in confirming tracheal intubation and detecting esophageal intubation. It also aimed to compare the mean number of breaths delivered by positive pressure ventilation using the anesthesia reservoir bag needed to confirm tracheal intubation and detect esophageal intubation by colorimetric method, chest auscultation and capnography
Design: This is a prospective cohort and validity study
Setting: Veterans Memorial Medical Center from June to August 2002. Methods: Upon intubation, endotracheal tube cuff was immediately inflated and connected to the DAD ETCO2 and breathing circuit. Endotracheal tube position was determined by three anesthesiologists who monitored chest auscultation, colorimetric ETCO2 and capnography. The number of breaths delivered by positive pressure ventilation was noted until tracheal intubation was confirmed
Results: There were 52 tracheal intubations and 5 esophageal intubations. DAD ETCO2, capnography, and chest auscultation confirmed endotracheal tube position in all cases. DAD ETCO2 confirmed tracheal intubation earlier than capnography or chest auscultation (p0.0001). There was no significant difference between DAD ETCO2 and capnography detection times in detecting esophageal intubation. There were no false positive or false negative results with the use of the DAD ETCO2
Conclusion: The DAD colorimetric ETCO2 monitor is simple, accurate, and rapid in confirming tracheal intubation and detecting esophageal intubation. (Author)
