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Carbon dioxide during Weight-Loss surgery: does it affect how soon you go home?

NCT ID NCT07445230

Knowledge-focused Sponsor: Istinye University 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 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 watches how carbon dioxide gas, used to inflate the belly during laparoscopic weight-loss surgery, changes blood bicarbonate levels. Researchers will track 85 adults having sleeve gastrectomy or gastric bypass to see if these changes relate to how long the gas is used and whether patients can leave the hospital within 48 hours. No new treatments are being tested; the goal is simply to learn more about the body's response during surgery.

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 doctors better predict which patients are ready to leave the hospital soon after weight-loss surgery.
What could go wrong
This is a small observational study, not a treatment trial. It only looks at a specific lab value and may not lead to changes in patient care.

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

About 85 people

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

Expected to start

Mar 2026

An estimate. Start dates often move.

Expected to finish

May 2026

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.

Who is studied

Adult patients undergoing elective laparoscopic bariatric surgery (laparoscopic sleeve gastrectomy or Roux-en-Y gastric bypass) at a single tertiary care center. Participants will be enrolled consecutively and followed prospectively to assess perioperative serum bicarbonate changes and early discharge readiness without altering routine clinical management.

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: * Adults aged ≥18 years * ASA physical status I-III * Scheduled for elective laparoscopic bariatric surgery (laparoscopic sleeve gastrectomy or Roux-en-Y gastric bypass) * Provided written informed consent Exclusion Criteria: * Age \<18 years * ASA physical status IV or higher * Chronic obstructive pulmonary disease (COPD), asthma, or other severe chronic respiratory disease * Known chronic metabolic acidosis or renal failure * Major intraoperative complications (e.g., severe bleeding, conversion to open surgery) * Postoperative reoperation, intensive care requirement, or complications preventing standard recovery evaluation

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Conditions

The condition(s) this trial relates to.

disorder of acid-base balance obesity disorder

As listed by the trial registrant

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

Acid base disorder

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

  • Istinye Üniversity

    Istanbul, Merkez Mahallesi, 34250, Turkey (Türkiye)

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