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Ultrasound reveals safe drinking limits before surgery

NCT ID NCT06210880

Knowledge-focused Sponsor: SMG-SNU Boramae Medical Center 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 07, 2026 · Last updated Jul 08, 2026 · Updated 1 time

Summary

This study uses ultrasound to measure stomach fluid volume in healthy adults after drinking clear fluids, aiming to find safe limits for pre-surgery hydration. Ten participants who have fasted will drink a set amount of clear liquid, and researchers will track how much remains in the stomach over time. The goal is to improve fasting guidelines so patients can stay hydrated without increasing surgical risk.

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 lead to clearer guidelines on how much and how close to surgery patients can safely drink clear fluids.
What could go wrong
This is a very small study (10 people) and only looks at healthy adults, so results may not apply to everyone or change practice directly.

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

10 people

The number who actually took part.

Started

Feb 2024

Finished

Jul 2024

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

healthy volunteers over 19 years old without a history of abdominal surgery

Ages

19 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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 ≥19 yrs Exclusion Criteria: * history of abdominal surgery

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As listed by the trial registrant

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

Preoperative fasting

Contacts and locations

Locations

  • SMG-SNU Boramae Medical Center

    Seoul, South Korea

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