CompletedNot Applicable

Ultrasound Predictors of Difficult Airway in Adults

Turkey (Türkiye)400 participantsStarted 2023-10-01

Plain-language summary

Difficult airway management is a major cause of perioperative complications. Standard bedside airway assessment tests may have limited ability to predict difficult intubation and difficult mask ventilation. This prospective observational study aims to evaluate whether preoperative ultrasound measurements of airway structures (such as skin-to-epiglottis distance, tongue thickness, and pre-epiglottic space) can predict difficult intubation and difficult mask ventilation in adult patients undergoing surgery under general anesthesia.

Who can participate

Age range

18 Years – 70 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Age 18-70 years ASA physical status I-III Elective surgery under general anesthesia requiring orotracheal intubation Written informed consent Exclusion Criteria: * Refusal to participate Emergency surgery Pregnancy Known upper airway pathology or previous airway surgery Restricted mouth opening (\<3 cm) Cervical spine instability or significant limitation of neck mobility Morbid obesity (BMI ≥40 kg/m²) Obstructive upper airway masses (e.g., head and neck tumors) Prior neck radiotherapy Clinically relevant neck masses Major facial/mandibular trauma or craniofacial anomalies

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Number of Participants with Difficult Intubation

Timeframe: During induction of anesthesia (intraoperative)

Number of Participants with Difficult Mask Ventilation

Timeframe: During induction of anesthesia (intraoperative)

Trial details

NCT IDNCT07383610

SponsorKutahya Health Sciences University

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2024-10-01

View on ClinicalTrials.gov More Difficult Intubation trials