New oxygen method may prevent low oxygen in obese patients during stomach scope
NCT ID NCT07159022
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether a high-flow nasal cannula (a device that delivers warm, humidified oxygen at high flow) can prevent low oxygen levels better than a standard face mask in people with visceral obesity undergoing sedated gastroscopy. The trial will enroll 200 participants and measure how many experience hypoxia (oxygen below 90%). If successful, it could offer a safer oxygen option for this high-risk group.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- High Flow Nasal Cannula Oxygenation
- What this could lead to
- If it works, this could point toward a safer oxygen method for obese patients during sedated gastroscopy.
- What could go wrong
- This is a small, early-stage trial with 200 participants, so results may not apply to all patients. The intervention is only for short-term use during a procedure, not a long-term 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
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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
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About 200 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2025
- Expected to finish
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Jul 2026
An estimate. End dates often move.
- Lead sponsor
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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
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18 to 80 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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: * ASA class ≤Ⅲ * Visceral obesity（body mass index≥28 and BRI ≥5.46） * Patients who will undergo sedated gastroscopy Exclusion Criteria: * Life-threatening heart disease or acute myocardial infarction within 6 weeks * Presence of pneumothorax or pulmonary bullae, pulmonary embolism, pulmonary oedema * Upper respiratory tract infection * Presence of tracheostomy * Nasal or nasopharyngeal diseases * Coagulation disorders or a tendency of nose bleeding * Pregnancy * Recent (within 1 week) thoracic surgery * Emergent procedure or surgery * Allergy to drugs used during the procedure * Unwillingness to participate in the study
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Zhongshan Hospitla
RECRUITINGShanghai, China
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