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Can a simple neck measurement predict a tough airway?

NCT ID NCT07547943

Knowledge-focused Sponsor: Bursa City Hospital 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 will test whether measuring the height from chin to neck (thyromental height) or using ultrasound to see neck tissues can better predict when placing a breathing tube will be hard. Researchers will watch 240 adults having planned surgery under general anesthesia. The goal is to find a quick, non-invasive way to spot potential airway problems before they happen.

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, reliable way to predict difficult airways before surgery, improving patient safety.
What could go wrong
This is an observational study, not a treatment trial. It only measures prediction accuracy, and 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.

Participants

About 240 people

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

Expected to start

May 2026

An estimate. Start dates often move.

Expected to finish

May 2027

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

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 patients undergoing elective surgical procedures under general anesthesia at a tertiary care hospital will be prospectively enrolled. All participants will undergo standardized preoperative airway assessment, including thyromental height measurement and ultrasonographic airway evaluation, followed by perioperative airway management assessment.

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: Adult patients aged 18 years and older Patients scheduled for elective surgery under general anesthesia Patients requiring endotracheal intubation Patients who provide written informed consent Exclusion Criteria: * Patients with known upper airway pathology (e.g., tumor, trauma, infection) Patients with previous head and neck surgery or anatomical deformity affecting airway evaluation Patients with limited mouth opening (\<3 cm) or severe cervical spine restriction Patients with contraindications to ultrasonographic examination Patients requiring rapid sequence induction or emergency surgery Patients who refuse to participate

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As listed by the trial registrant

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

Airway management Difficult airway

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

    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

  • Bursa City Hospital

    Bursa, Nilüfer, 16110, Turkey (Türkiye)

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