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Lung ultrasound study tests breathing trick to keep lungs open after surgery

NCT ID NCT07324122

Knowledge-focused Sponsor: Fatih Sultan Mehmet Training and Research Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Aug 06, 2026 · Updated 3 times

Summary

This study looked at whether a special breathing maneuver during gallbladder surgery can reduce lung collapse (atelectasis) after the operation. Researchers used lung ultrasound to check lung aeration in 80 adults before and after surgery. The goal was to gather information, not to test a new drug or treatment.

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

80 people

The number who actually took part.

Started

Apr 2025

Finished

Oct 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 to 75 years

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: * Adult patients scheduled for elective laparoscopic cholecystectomy under general anesthesia * Age between 18 and 75 years * Body mass index (BMI) \< 30 kg/m² * American Society of Anesthesiologists (ASA) physical status classification I-III * Provision of written informed consent Exclusion Criteria: * Refusal to participate in the study * Emergency surgical procedures * Body mass index (BMI) ≥ 30 kg/m² * American Society of Anesthesiologists (ASA) physical status classification IV

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Conditions

The condition(s) this trial relates to.

middle lobe syndrome Pneumoperitoneum Pulmonary Atelectasis

As listed by the trial registrant

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

Perioperative atelectasis during laparoscopic cholecystectomy Pulmonary atelectasis

Contacts and locations

Locations

  • Istanbul Provincial Health Directorate Fatih Sultan Mehmet Training and Research Hospital

    Istanbul, Istanbul, 34000, Turkey (Türkiye)

More trials for these conditions

Other studies related to the condition(s) this trial covers.