New imaging technique reveals lung changes after breathing tube removal
NCT ID NCT05077605
First seen Jun 27, 2026 · Last updated Jul 08, 2026 · Updated 2 times
Summary
This study used a non-invasive imaging technique called electrical impedance tomography to measure how lung function changes after removing a breathing tube (extubation) in 34 adults undergoing scheduled surgery. The goal was to better understand the risky extubation period and improve patient care. Researchers measured lung capacity before and at several time points after extubation.
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 could help anesthesiologists better understand and manage the risky extubation phase, potentially reducing complications like low oxygen or pneumonia.
- What could go wrong
- This is a small, observational study (34 patients) that only measures lung function changes—it does not test a treatment or directly improve outcomes. Results may not apply to all surgeries or patients.
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
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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
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34 people
The number who actually took part.
- Started
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Nov 2021
- Finished
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Jun 2022
- 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.
- 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Patient over 18 years * Patient in operating room for scheduled surgery * Patient receiving general anaesthesia with orotracheal intubation * Patient given written consent after information * Patient covered by social security or equivalent regimen Exclusion Criteria: * Patient undergoing thoracic and spinal surgery, due to the presence of dressings that interfere with measurements, * Patient who has undergone intracerebral surgery because of possible communication difficulties upon awakening, * Patients with a body mass index (BMI) \> 50 (measurements not possible) * Pregnant or breastfeeding patient, * Patient contraindicated to the use of a thoracic electroimpedancemetry technique: dressings, wounds, presence of a pacemaker, defibrillator or any other active implant. * Patient deprived of liberty by a judicial or administrative decision or patient subject to a legal protection measure (guardianship, curatorship...) * Patient in a period of exclusion from another research protocol * Any other reason that, in the opinion of the investigator, could interfere with the evaluation of study objectives
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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
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Hôpital d'Instruction des Armées de Sainte Anne
Toulon, Var, 83100, France