Primary endpoint: To describe the Bland-Altman agreement of end-tidal CO₂ (EtCO₂) measurements between MARIETM airway adapter (Oxlantic Medical AB) and a standard capnography, Getinge Flow-i, in intubated patients.
Adult, ≥18 years of age
Elective surgery under general anesthesia
Endotracheal intubation
Planned for arterial line
Unable to understand study information or sign the consent form
Single group
MARIE
DevicePortable mainstream capnography
To describe the Bland-Altman agreement of end-tidal CO₂ measurements between MARIE airway adapter (Oxlantic Medical AB) and a standard capnography, Getinge Flow-i, in intubated patients.
End-tidal carbon dioxide (EtCO2) will be measured by a standard capnograph from the company Getinge Flow-i and be compared to the end-tidal carbon dioxide of a novel portable mainstream capnograph MARIE
Correlation of end-tidal CO₂ (EtCO₂) measurements between MARIE and Getinge Flow-i
Correlation between PaCO₂ and EtCO₂ measured by MARIE and Getinge Flow-i, respectively.
Time trajectories of PaCO₂ and EtCO₂ measured using MARIE and Getinge Flow-i, respectively.
Overall agreement between EtCO₂ measured by MARIE, Getinge Flow-i, and PaCO₂.
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Malin Jonsson Fagerlund
Lead sponsor
Karolinska University Hospital
Sponsor institution
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