Green anesthesia: can we use 80% less gas and still keep patients safe?
NCT ID NCT07628231
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This study will measure how much sevoflurane (an anesthesia gas) is used when ventilators are set to a very low fresh gas flow of 0.3 L/min. Researchers want to see if this ultra-low flow saves resources without affecting patient care. Data from 30 adult surgery patients will be compared to historical data from higher flow rates.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this study could help establish safer, more eco-friendly anesthesia practices by reducing waste of anesthetic gases.
- What could go wrong
- This is a small, early observational study with only 30 participants, so results may not apply broadly. It does not test a new treatment or direct patient benefit.
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.
- Participants
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About 30 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jun 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2027
An estimate. End dates often move.
- Lead sponsor
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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.
Who is studied
Patients who underwent general anesthesia with ventilation at a minute volume of 0.3 L/min at the Nîmes University Hospital
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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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: * Adult patients undergoing surgery under general anesthesia with mechanical ventilation * Connected to a ventilator linked to the Carestaion software * No refusal as indicated by a letter of consent Exclusion Criteria: * Refusal to participate * Minor patients
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
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