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Ultrasound reveals best position to avoid lung collapse during surgery

NCT ID NCT07320092

Knowledge-focused Sponsor: Istanbul University - Cerrahpasa 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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jul 07, 2026 · Updated 2 times

Summary

This study looks at how often small areas of the lung collapse (atelectasis) during surgery when patients lie face-up versus face-down. Researchers will use lung ultrasound, a safe and radiation-free imaging method, to check lung health right after anesthesia and just before waking up. The goal is to understand which position leads to fewer lung problems, helping doctors improve care during routine surgeries. About 80 adults having planned surgery will take part, and no experimental treatments are given.

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

80 people

The number who actually took part.

Started

Sep 2025

Finished

Apr 2026

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.

Who is studied

The study population consists of adult patients aged 18 years and older who are scheduled to undergo elective surgical procedures under general anesthesia. Patients will be evaluated according to surgical positioning (supine or prone) during routine perioperative care.

Ages

18 to 80 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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 aged 18 years or older. * Patients scheduled for elective surgery under general anesthesia. * Patients undergoing surgery in the supine or prone position. * Patients able to provide informed consent. Exclusion Criteria: * Emergency surgical procedures. * Pre-existing severe pulmonary disease affecting lung ultrasound assessment. * Hemodynamic instability requiring urgent intervention. * Contraindications to lung ultrasound examination.

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Conditions

The condition(s) this trial relates to.

Deception Pulmonary Atelectasis

As listed by the trial registrant

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

Postoperative atelectasis

Contacts and locations

Locations

  • Istanbul University-Cerrahpasa, Cerrahpasa Faculty of Medicine

    Istanbul, Istanbul, 34320, Turkey (Türkiye)

More trials for these conditions

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