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Chin and neck measurements may predict safer intubation

NCT ID NCT07668297

Knowledge-focused Sponsor: Sir Ganga Ram Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 01, 2026 · Updated 2 times

Summary

This observational study in 240 adults having elective surgery will measure distances on the chin and neck to see if they can predict the distance from the teeth to the voice box. The goal is to help doctors pick the correct laryngoscope blade size for placing a breathing tube, which could make intubation safer and reduce complications.

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 help doctors choose the right breathing tube size more easily, potentially reducing airway complications during surgery.
What could go wrong
This is a small, early observational study, not a treatment trial. The measurements may not reliably predict blade size in all patients, and results may not apply to everyone.

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.

Started

Jun 2026

Expected to finish

Aug 2027

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

Patients undergoing elective surgery under general anaesthesia

Ages

18 to 65 years

Sex

Anyone

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 2. Males and females 3. ASA (American Society of Anaesthesiologists) physical status I and II 4. Patients scheduled for elective surgery with controlled ventilation through orotracheal tube conduit Exclusion Criteria: 1. Smokers (those who have smoked ≥100 cigarettes in their lifetime), chewing tobacco dependence or substance abuse 2. Submucous fibrosis: progressive fibrosis of the submucosal tissue leading to rigidity, relative trismus, and progressive decrease of mouth opening 3. Anticipated difficult airway 4. Patients requiring intubation with MacIntosh blade #4 or #5 5. Dental issues: * missing tooth (upper/lower incisors, upper/lower premolar) * crowded dentition: - irregular, misaligned, or overlapping teeth within a relatively small oral cavity * presence of artificial teeth and/or dental implants • Mandible/mandibular structure related issues: * Retrognathia: - posterior displacement of the mandible relative to the maxilla or cranial base * Prognathia: - anterior displacement of the mandible relative to the maxilla or cranial base 6. Emergency Surgery 7. Those requiring urgent rapid-sequence intubation due to the presence of a full-stomach status secondary to gastro-esophageal reflux disease, diaphragmatic hernia, among others. 8. Refusal to informed consent

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As listed by the trial registrant

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

Airway assessment Laryngoscopy

How to take part

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  1. The places running it

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  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

  • Sir Ganga Ram Hospital

    RECRUITING

    New Delhi, National Capital Territory of Delhi, 110060, India

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