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.

Hypophosphatemia in Critical Care

Summary:In this episode, we spotlight a stealthy ICU disruptor — hypophosphataemia. Based on a 2024 narrative review in the Journal of Clinical Medicine, we explore why phosphate matters, how it goes missing in critically ill patients, and why you should care even when it’s just “a little low.”What’s Covered:The vital role of phosphate in energy,

DKA in Critical Care

Mobilisation in Critical Care- Barriers and Culture

Mobilisation in the ICU raises two big questions: is it safe, and will staff embrace it?In this discussion, Jonathan explores both sides of the story:Safety first:Large prevalence studies show mobilisation is happening, though often inconsistently.A systematic review of 1,800+ sessions found serious adverse events in only 0.6% — most minor and short-lived.Even patients on CRRT can safely mobilise

Home

Blog

Courses

Podcasts

End-tidal Carbon Dioxide as a Surrogate of Cardiac Output