About this trial
Obese patients are at increased risk of difficult airway management due to anatomical changes in the anterior neck soft tissues. Accurate preoperative prediction of difficult airway remains challenging using conventional clinical airway assessment tests alone.
This prospective observational study aims to evaluate the role of ultrasound assessment of anterior neck soft tissue thickness in predicting difficult airway risk in overweight and obese adult patients undergoing elective surgery under general anesthesia. Ultrasound-based anterior neck measurements will be compared with standard clinical airway assessment parameters to determine their diagnostic accuracy for difficult laryngoscopy and intubation.
The results of this study may contribute to improved preoperative airway risk stratification and safer airway management in obese patients.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age 18-70 years
ASA physical status I-III
Scheduled for elective surgery under general anesthesia
Disqualifiers
Emergency surgery
Pregnancy
Maxillofacial anomalies or neck masses
Rapid sequence induction
Trial population
Overweight and obese adult patients undergoing elective surgery under general anesthesia
Trial design
Cohort
Prospective
Treatments tested in this trial
None (Observational study)
Other interventionone group, there is no intervention. All measurements and observations will be performed during routine clinical care only
Treatment groups
Trial outcomes
Primary outcomes
Cormack-Lehane grade III-IV
Occurrence of difficult airway during anesthesia induction, defined by difficult laryngoscopy
Secondary outcomes
Ultrasound-derived anterior neck soft tissue measurements
diagnostic accuracy for predicting difficult airway (ROC-AUC)
Intubation Difficulty Scale (IDS) score
Difficult intubation: IDS score \> 5
Han Scale
Difficult mask ventilation: Han grade ≥ II
Other outcomes
Airway-related complications
Number of intubation attempts and need for airway adjuncts (stylet/bougie) and complications including desaturation and dental or soft tissue injury
Locations
Sponsors and contacts
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