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Ultrasound may predict tough intubations in women

NCT ID NCT07343557

Knowledge-focused Sponsor: Adana City Training and Research Hospital Source: ClinicalTrials.gov ↗

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at whether ultrasound measurements of the tongue and neck can predict difficult intubation (placing a breathing tube) in 400 adult women having planned surgery. Researchers measured tongue thickness and neck tissue depth before anesthesia and compared them to how easy or hard intubation was. The goal is to find a reliable, non-invasive way to identify patients who might have trouble, improving safety.

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 a simple, non-invasive ultrasound method to identify patients at risk of difficult intubation, potentially reducing complications.
What could go wrong
This is an observational study, not a treatment trial. The findings may not apply to men, children, or people with obesity, and the ultrasound measurements may not be accurate enough in practice.

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

400 people

The number who actually took part.

Started

May 2025

Finished

Dec 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.

Who is studied

Adult female patients aged 18-65 years undergoing elective surgery under general anesthesia at a tertiary care hospital. Participants were non-pregnant and scheduled for non-emergency procedures.

Ages

18 to 65 years

Sex

Female participants only

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: * Female patients aged 18-65 years * American Society of Anesthesiologists (ASA) physical status I-III physical status I-III * Scheduled for elective surgery under general anesthesia requiring tracheal intubation * Ability to provide informed consent Exclusion Criteria: * Body mass index ≥30 kg/m² * Known history of difficult intubation * Anatomical airway abnormalities or head and neck pathology * Pregnancy * Emergency surgery

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As listed by the trial registrant

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

Airway assessment Difficult intubation

Contacts and locations

Locations

  • Adana City Training and Research Hospital

    Adana, Adana, 010650, Turkey (Türkiye)

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