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Tulip-Shaped airway may lower reflux risk during surgery

NCT ID NCT06527352

Knowledge-focused Sponsor: Air Force Military Medical University, China 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested two types of glottis mask airways (a tube placed in the throat to help patients breathe during anesthesia) to see which one reduces the risk of stomach acid backing up into the throat. The tulip-shaped tip is designed to fit the larynx better than the classical water-drop shaped tip. Researchers measured the acid level in secretions from the airway at the end of surgery in 72 adults. The goal is to find a safer way to manage breathing during general anesthesia.

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 the tulip-shaped airway works better, it could lead to safer anesthesia with less risk of stomach acid entering the lungs.
What could go wrong
This is a small, completed study with only 72 participants. The results may not apply to all patients or settings.

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

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

72 people

The number who actually took part.

Started

Aug 2024

Finished

Jan 2025

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.

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≥18 years old * scheduled for surgery under general anesthesia with laryngeal mask airway Exclusion Criteria: * American society of anesthesiologists status score higher than 3 * morbid obesity (body mass index higher than 40 kg/m2) * with high risk of gastroesophageal reflux * with risk of difficult airway * with airway disease

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Conditions

The condition(s) this trial relates to.

gastroesophageal reflux disease

As listed by the trial registrant

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

Anesthesia

Contacts and locations

Locations

  • Xijing Hospital, Air Force Medical University

    Xi'an, Shaanxi, 710032, China

More trials for these conditions

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