New portable CO2 monitor tested in Post-Op patients
NCT ID NCT07178236
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested a new portable device called MARIE that measures carbon dioxide (CO2) in the breath of 40 adults after surgery. The goal was to see if MARIE works as well as standard hospital monitors for detecting breathing problems early. Researchers compared MARIE's readings with those from routine equipment and blood tests.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
-
40 people
The number who actually took part.
- Started
-
Sep 2025
- Finished
-
Dec 2025
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 years and older
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Adult, ≥18 years of age 2. Elective surgery under general anesthesia 3. Planned for over night postoperative care Exclusion Criteria: 1. Tracheostomy 2. Nasal obstruction 3. Rhino- or oral surgery 4. Not able to understand study information or signing consent form
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Anesthesia are added.
Genom att skicka in godkänner du våra Användarvillkor
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Karolinska University Hospital
Stockholm, 17176, Sweden
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Five simple signs could help nurses score surgical pain in turkish
- Two veins, one ultrasound: can blood flow patterns reveal hidden congestion in ICU patients?
- Fixing broken ribs with surgery may cut pain better than drugs alone
- Ultrasound peers into Children's stomachs after Pre-Surgery drink
- Can a handheld device match standard monitors for measuring exhaled CO2?
- Can Weight-Loss surgery patients skip the opioids?