Assessment Of Difficult Airway Predictors: A Prospective Comparison Of Upper Airway Ultrasound And Conventional Anthropometric Measures
Overview
- Phase
- Not Applicable
- Status
- Recruiting
- Sponsor
- Saglik Bilimleri Universitesi Gulhane Tip Fakultesi
- Enrollment
- 200
- Locations
- 1
- Primary Endpoint
- Diagnostic accuracy of ultrasound airway measurements for predicting difficult mask ventilation
Overview
Brief Summary
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.
Study Design
- Study Type
- Observational
- Observational Model
- Cohort
- Time Perspective
- Prospective
Eligibility Criteria
- Ages
- 18 Years to 99 Years (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
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
Arms & Interventions
Single Cohort
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.
Outcomes
Primary Outcomes
Diagnostic accuracy of ultrasound airway measurements for predicting difficult mask ventilation
Time Frame: Preoperative assessment (within 1 hour before induction of anesthesia)
Evaluation of the sensitivity, specificity, and area under the ROC curve (AUC) of ultrasound-based airway measurements-tongue thickness, hyoid-to-skin distance, and epiglottis-to-skin distance-in predicting difficult mask ventilation. These ultrasound parameters will be compared with conventional anthropometric airway assessment tests to determine their predictive performance.
Secondary Outcomes
No secondary outcomes reported
Investigators
Sami Eksert
anesthesiology specialist
Saglik Bilimleri Universitesi Gulhane Tip Fakultesi