Comparative evaluation of three end-tidal CO2 monitors used during air medical transport

The purpose of this investigation on ETCO2 monitoring was to determine if the monitors would function effectively in the aircraft. When compared in a cumulative manner, little difference between the three monitors was noted. The ETCO2 monitor appears to function in the fixed-wing aircraft when transporting critically ill, mechanically ventilated patients. Although this study does not address the accuracy of the ETCO2 monitor during changes in altitude, a base-line reading can be established during flight. Light weight, small size and extended battery life appear to be the criteria most lacking in these three capnographs reviewed in this study. This study demonstrates the compatibility of three capnographs with the aircraft environment. Manufacturers will hopefully continue to develop ETCO2 monitors to meet the space and weight needs of flight personnel in the difficult conditions of the air medical environment.