Airway Ultrasound vs Clinical Predictors for Difficult Airway

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.

NCT Number	NCT07243106
Lead Sponsor	Tokat Gaziosmanpasa University
Conditions	Ultrasonography, Difficult Airway, Preoperative Evaluation
Enrollment	140 participants
Start Date	2025-12-20
Primary Completion	2026-06-01 (estimated)
Study Completion	2026-09-01 (estimated)
Updated on ClinicalTrials.gov	2026-07-01