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Ultrasound may outshine standard tests for airway risk in obesity

NCT ID NCT07528677

Knowledge-focused Sponsor: Fatih Sultan Mehmet Training and Research 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at whether using ultrasound can better predict if placing a breathing tube will be difficult in obese patients (BMI over 35). Researchers will compare ultrasound measurements of the neck with standard tests like the Mallampati score. 70 adults having planned surgery will take part. The goal is to improve safety during anesthesia.

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 70 people

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

Expected to start

Apr 2026

An estimate. Start dates often move.

Expected to finish

Nov 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.

Who is studied

Adult obese patients (BMI \>30 kg/m², aged 18-65 years, ASA I-III) scheduled for elective surgery requiring orotracheal intubation under general anesthesia at Fatih Sultan Mehmet Training and Research Hospital, Istanbul, Turkey.

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: * Age 18-65 years * BMI \>30 kg/m2 * ASA physical status I, II, or III * Scheduled for elective surgery requiring orotracheal intubation under general anesthesia * Written informed consent obtained Exclusion Criteria: * Emergency surgery * History of previous head and neck surgery or radiotherapy * Known or anticipated difficult airway (history of difficult intubation) * Presence of cervical spine pathology or limited neck mobility * Presence of oropharyngeal or laryngeal pathology * Pregnancy * Patients with tracheostomy * Refusal to participate

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder

As listed by the trial registrant

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

Difficult airway Difficult airway intubation Difficult mask ventilation Obesity (bmi > 35)

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

  • Fatih Sultan Mehmet Training and Research Hospital

    Istanbul, Turkey (Türkiye)

More trials for these conditions

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