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Smart anesthesia machine may protect lungs in elderly surgery patients

NCT ID NCT07477951

Disease control Sponsor: Yongtao Sun Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at whether using an automatic lung re-expansion feature on anesthesia machines can improve lung function and reduce complications in elderly patients (65+) after laparoscopic surgery. About 58 participants will be randomly assigned to receive either the automated lung recruitment or standard care during surgery. The main goal is to measure blood oxygen levels 30 minutes after the breathing tube is removed and track any lung problems in the first 3 days after surgery.

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

About 58 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Apr 2026

An estimate. Start dates often move.

Expected to finish

Jun 2027

An estimate. End dates often move.

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

65 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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * aged≥65 years * American Society of Anesthesiologists (ASA) grades I-III; * Body mass index (BMI) between 18-30kg/m² * No history of drug allergy or abnormal anesthesia; * Patients undergoing laparoscopic gastrointestinal surgery, and operative time\> 2 hours; * Participants with a preoperative oxygen saturation not \< 94% * Participants for whom extubation is planned in the operating room. * The assess respiratory risk in surgical patients in Catalonia (ARISCAT) score is 26-44 or \> 44. Exclusion Criteria: * ALI or ARDS patient within 3 months; severe pulmonary dysfunction; severe COPD (FEV1 \<50% of predicted value) or pulmonary hypertension; * New York Heart Association classification: Class IV; * Chronic renal failure(GFR\<30ml min-11.73m-2); * Severe liver disease; * Patients with confusion and cognitive dysfunction; * Severe coagulation disorders; * Patients with tracheal tubes transported to the ICU; * Other reasons;

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Conditions

The condition(s) this trial relates to.

acute lung injury

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Acute lung injury

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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.

Contacts and locations

Locations

  • The First Affiliated Hospital of Shandong First Medical University (Shandong Qianfoshan Hospital)

    Jinan, Shandong, 250014, China

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