Airway Ultrasound vs Clinical Predictors for Difficult Airway

Enrolling by invitation

Conditions studied: Ultrasonography, Difficult Airway, Preoperative Evaluation

In brief

This prospective observational study aims to evaluate the diagnostic value of airway ultrasonography in predicting difficult intubation in adult patients undergoing elective surgery under general anesthesia. Preoperative sonographic measurements of upper airway structures will be compared with conventional clinical airway assessment parameters such as the Mallampati score, thyromental distance, and sternomental distance. The study seeks to determine whether ultrasonographic measurements can serve as independent predictors of difficult airway and whether combining them with clinical parameters improves diagnostic accuracy. Additionally, the correlation between sonographic findings and the Intubation Difficulty Scale (IDS) will be analyzed to assess the potential clinical utility of airway ultrasound in preoperative airway evaluation.

Key facts

Study ID

NCT07243106

Run by

Tokat Gaziosmanpasa University

People needed

140

Starts

2025-12-20

Expected to finish

2026-09-01

Last updated by the study team

2026-07-01

Who can join

Age: 18 and older, up to 60. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Adult patients aged 18-60 years
• Scheduled for elective surgery
• ASA (American Society of Anesthesiologists) physical status I, II, or III
• Planned for endotracheal intubation under general anesthesia

You may not qualify if…

• Patients requiring emergency surgery
• Patients with a known history of difficult intubation
• Patients with head or neck trauma
• Patients with a history of previous head or neck surgery or head/neck malignancy
• Pregnant patients

Where it is running

• Tokat Gaziosmanpasa University — Tokat Province, Tokat Province, Turkey (Türkiye)

Full record on ClinicalTrials.gov

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