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New breathing technique tested in obese surgery patients

NCT ID NCT07641829

Knowledge-focused Sponsor: Ankara 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jul 24, 2026 · Updated 3 times

Summary

This study compares two ways of using a breathing machine during weight-loss surgery in 34 obese patients. One method controls the flow of air, the other controls the volume. Researchers want to see which method keeps the lungs and heart more stable during surgery. Participants will be monitored during and after surgery for breathing and recovery needs.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Flow-Controlled Ventilation (FCV) and Volume-Controlled Ventilation (VCV) devices
What this could lead to
If FCV proves better, it could become the preferred ventilation method for obese patients during surgery, improving safety and recovery.
What could go wrong
This is a small, early-stage study with only 34 participants, so results may not apply broadly. The benefits might be minor or not clinically significant.

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

34 people

The number who actually took part.

Started

Mar 2026

Finished

Jul 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

Adult morbidly obese patients (BMI ≥40 kg/m²) aged 18-65 years, classified as ASA I-III, scheduled for elective laparoscopic bariatric surgery at Ankara Training and Research Hospital.

Ages

18 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: * Age between 18 and 65 years * American Society of Anesthesiologists (ASA) physical status I, II, or III * Body Mass Index (BMI) ≥ 40 kg/m² * Scheduled for elective laparoscopic bariatric surgery * Willing to participate in the study Exclusion Criteria: * ASA physical status IV or V * Emergency surgical procedures * Pregnant patients * Patients requiring vasopressor support to maintain mean arterial pressure above 65 mmHg intraoperatively * Patients with advanced pulmonary disease * Patients who decline to participate in the study

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Conditions

The condition(s) this trial relates to.

morbid obesity

As listed by the trial registrant

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

Bariatric surgery (sleeve gastrectomy ) Mechanical ventilation Obesity, morbid

Contacts and locations

Locations

  • Ankara Education and Research Hospital

    Ankara, 06230, Turkey (Türkiye)

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