Capnography, Intubation, Monitoring
Conditions
Keywords
capnography, monitoring, mainstream, novel
Brief summary
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.
Interventions
Portable mainstream capnography
Sponsors
Study design
Eligibility
Inclusion criteria
* Adult, ≥18 years of age * Elective surgery under general anesthesia * Endotracheal intubation * Planned for arterial line
Exclusion criteria
* Unable to understand study information or sign the consent form
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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. | During anesthesia and mechanical ventilation | 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 |
Secondary
| Measure | Time frame |
|---|---|
| Correlation of end-tidal CO₂ (EtCO₂) measurements between MARIE and Getinge Flow-i | During anesthesia and mechanical ventilation maximum up to 12 hours after start of anesthesia |
| Correlation between PaCO₂ and EtCO₂ measured by MARIE and Getinge Flow-i, respectively. | During anesthesia and mechanical ventilation maximum up to 12 hours after start of anesthesia |
| Time trajectories of PaCO₂ and EtCO₂ measured using MARIE and Getinge Flow-i, respectively. | During anesthesia and mechanical ventilation maximum up to 12 hours after start of anesthesia |
| Overall agreement between EtCO₂ measured by MARIE, Getinge Flow-i, and PaCO₂. | During anesthesia and mechanical ventilation maximum up to 12 hours after start of anesthesia |
| Respiratory rate measured by MARIE compared to Getinge Flow-i. | During anesthesia and mechanical ventilation maximum up to 12 hours after start of anesthesia |
| Usability as reported by nurse. | During anesthesia and mechanical ventilation maximum up to 12 hours after start of anesthesia |
| Reasons for premature termination of MARIE. | During anesthesia and mechanical ventilation maximum up to 12 hours after start of anesthesia |
| Registration of technical problems, e.g. unexpected shutdowns or blockage by mucus. | During anesthesia and mechanical ventilation maximum up to 12 hours after start of anesthesia |