End-tidal Carbon Dioxide as a Surrogate of Cardiac Output

 November 10

by Jonathan Downham

End-tidal Carbon Dioxide as a Surrogate of Cardiac Output

The study entitled “End-tidal carbon dioxide (EtCO2) is better than arterial pressure for predicting volume responsiveness by the passive leg raising test” published in Intensive Care Medicine has garnered much attention from the field in recent months (see article reviewfrom ESICM NEXT). This attention is due to its probable impact on clinical practice: This study reported that changes in EtCO2 induced by a passive leg raising (PLR) test predicted fluid responsiveness with a good reliability, while the changes in arterial pulse pressure during PLR did not.
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