Assessment Of Difficult Airway Predictors: A Prospective Comparison Of Upper Airway Ultrasound And Conventional Anthropometric Measures

Saglik Bilimleri Universitesi Gulhane Tip Fakultesi

Status: Not yet enrolling

Conditions: Difficult Airway Intubation; Prediction of Difficult Airway

Study type: Observational

Funder types: Other

Identifiers

NCT07309978

AEŞH-EK-2-25-276

Details and patient eligibility

About

This prospective observational study aims to evaluate whether upper airway ultrasound measurements can improve the prediction of difficult airway compared with conventional anthropometric assessments. Adult patients undergoing elective procedures requiring airway management will be included. Ultrasound parameters such as tongue thickness, anterior neck soft tissue thickness, and hyomental distance will be measured before airway intervention. Standard clinical predictors (Mallampati score, thyromental distance, neck circumference, etc.) will also be recorded. The primary objective is to determine the diagnostic accuracy of ultrasound-based measurements in predicting difficult laryngoscopy and intubation. The study seeks to provide evidence supporting the integration of upper airway ultrasound into routine pre-anesthetic airway evaluation.

Enrollment: 200 estimated patients

Sex: All

Ages: 18 to 99 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Adults aged 18-99 years
• Patients scheduled for elective surgery under general anesthesia
• ASA Physical Status I-III
• Able to provide informed consent
• Undergoing preoperative airway evaluation

Exclusion criteria

• - Emergency surgery cases
• Age <18 years
• ASA Physical Status IV-V
• Pregnant or breastfeeding patients
• Patients with limited cooperation or inability to provide consent
• Known anatomical airway anomalies or previous major neck surgery

Trial design

200 participants in 1 patient group

Single Cohort

Description:

This cohort includes all adult participants undergoing airway evaluation with upper airway ultrasound and standard anthropometric measurements. No interventions are applied; participants are observed prospectively to assess the predictive value of ultrasound parameters for difficult airway.