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Study reveals nighttime oxygen dips common after bariatric surgery

NCT ID NCT07174674

Knowledge-focused Sponsor: Rijnstate Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This completed study observed 563 patients who had weight-loss (bariatric) surgery and received extra oxygen during their first night in the hospital. Researchers tracked how often oxygen levels fell below 90% and what actions nurses took, like adjusting the oxygen flow or repositioning the patient. The goal was to understand these events better, not to test a new 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.

Participants

563 people

The number who actually took part.

Started

Sep 2022

Finished

Oct 2023

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

Patients undergoing primary bariatric and metabolic surgery, with a overnight stay at the nursing ward of Rijnstate Hospital (Arnhem, the Netherlands). With exclusion of patients with treated OSA or diagnosis of chronic obstructive pulmonary disease.

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: * Undergoing primary metabolic and bariatric surgery * Overnight hospital stay Exclusion Criteria: * Undergoing secundary metabolic and bariatric surgery (e.g. redo surgery) * Having treated obstructive sleep apnea (CPAP, oral application) * Having chronic obstructive pulmonary disease * No overnight hospital stay at the nursing ward (same-day discharge or overnight stay at medium or intensive care)

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Conditions

The condition(s) this trial relates to.

obesity disorder obstructive sleep apnea syndrome

As listed by the trial registrant

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

Bariatric surgery Obstructive sleep apnea (OSA)

Contacts and locations

Locations

  • Vitalys obesity clinic, part of Rijnstate Hospital

    Arnhem, Gelderland, 6815 AD, Netherlands

More trials for these conditions

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