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New study aims to prevent air from entering the esophagus during anesthesia

NCT ID NCT07340255

Knowledge-focused Sponsor: Affiliated Hospital of Jiaxing University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 is looking for the best ventilation pressure to use during anesthesia induction to stop air from accidentally going into the esophagus. Researchers will monitor 60 adults having planned surgery using ultrasound to see when air enters the esophagus. The goal is to find a pressure that works for 90% of patients, making anesthesia safer.

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 establish a precise ventilation pressure standard to reduce complications during anesthesia induction.
What could go wrong
This is a small, early-phase study (60 participants) focused on a specific monitoring technique, so results may not apply broadly. The intervention is observational and does not test a new drug or device.

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

About 60 people

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

Started

Sep 2025

Expected to finish

Feb 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.

Ages

18 to 65 years

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: 1. Age: 18-65 years, regardless of gender; 2. ASA classification: I-III; 3. Scheduled for elective general anesthesia surgery; 4. BMI: 18.0-28.0 kg/m²; 5. Preoperative fasting: Solid food \>6 hours, liquid \>2 hours; 6. Less than two from five criteria predicting difficult mask ventilation as described by Langeron et al.(Prediction of difficult mask ventilation. Anesthesiology 2000; 92:1229-36); 7. No severe underlying conditions such as heart, lung, liver, or kidney disease; 8. Signed informed consent and ability to cooperate with the study protocol. Exclusion Criteria: 1. Pregnant or breastfeeding women; 2. History of upper gastrointestinal diseases such as gastroesophageal reflux disease, peptic ulcers, or hiatal hernia; 3. Recent (within 2 weeks) respiratory infections, chronic cough, similar symptoms, and other known or predictable respiratory system diseases; 4. Need for emergency surgery or airway obstruction after anesthesia induction requiring urgent intubation; 5. Inability to achieve adequate oxygenation during mask ventilation (e.g., SpO₂ \< 92% for 30 seconds, unresponsive to treatment); 6. History of contraindications or allergies to study medications; 7. Inability to understand the study content or refusal to cooperate; 8. Oropharyngeal or facial pathology; 9. with an indwelling gastric tube, and who had previously undergone gastric surgery.

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Conditions

The condition(s) this trial relates to.

Respiratory Aspiration

As listed by the trial registrant

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

Airway management Induction of anesthesia

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

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Contacts and locations

Locations

  • Affiliated Hospital of Jiaxing University

    RECRUITING

    Jiaxing, China

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