Comparing airway ultrasound and laryngoscopes in people with obesity
Official title: The Effect of Preoperative and Postoperative Airway Ultrasonography and Different Laryngoscope Uses on Intubation Success and Postoperative Complications in Obese Patients
Run by Trabzon Kanuni Education and Research Hospital · NCT07482436 · Data updated 2026-11-12
This study tests whether airway ultrasound measurements and different laryngoscopes help predict difficult intubation and improve intubation success in adults with obesity having elective surgery.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 180 (estimated) |
| Sponsor | Trabzon Kanuni Education and Research Hospital Academic / other |
| Locations | 1 site (Trabzon) |
| Status | Recruiting |
| Started | January 1, 2026 |
| Main results expected | July 1, 2026 |
| Study ends | July 1, 2026 |
| Registry record updated | March 19, 2026 |
| Trial ID | NCT07482436 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (≥18 years) with BMI ≥30, ASA physical status I–III, scheduled for elective surgery under general anesthesia lasting 60–150 minutes who can give informed consent are eligible.
✕Probably not a fit
Patients undergoing head or neck or emergency surgery, those operated in the prone position, uncooperative patients, or those with craniofacial anomalies (and people with BMI <30) are excluded and unlikely to benefit from these findings.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This single-center study enrolls adults with BMI ≥30 who are having elective surgery under general anesthesia. Investigators will record standard bedside airway markers and perform preoperative airway ultrasonography measurements, then compare intubation using a Macintosh laryngoscope versus two types of videolaryngoscopes. Key outcomes include glottic view (POGO), intubation success, time to intubation, perioperative respiratory complications, and hemodynamic responses. The trial aims to determine whether adding ultrasound improves prediction of difficult airways and whether specific laryngoscopy methods change intubation success and complication rates in obese patients.
Why it matters
Potential benefit: If successful, this approach could help anesthesiologists better predict difficult intubation in obese patients and choose the laryngoscope that reduces complications and failed intubations.
How similar studies have gone: Prior studies suggest airway ultrasound can add predictive value for difficult intubation and videolaryngoscopy often improves glottic view, but results vary and benefits specifically in obese populations are not yet definitive.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Patients who have given their consent * Patients who underwent surgery under general anesthesia * Patients over eighteen years of age * Patients with an American Society of Anesthesiologists (ASA) physical status classification of I-II-III * Patients with a body mass index (BMI) of 30 kg/m2 or higher * Patients whose surgery lasts between 60 and 150 minutes * Patients who underwent surgery under elective conditions will be included. Exclusion Criteria: * Patients who do not consent, * those undergoing head and neck surgery, * those to be operated on in the prone position, * uncooperative patients (patients with whom communication is not possible), * those with craniofacial anomalies, * patients operated on in emergency situations will be excluded from the study.
Where it's running
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Trabzon University Faculty of Medicine Kanuni Training and Research Hospital
Trabzon, Turkey (Türkiye) Recruiting
Study contacts
- Study coordinator: Ezgi Günaydın, MD
- Email: ezgunaydin@gmail.com
- Phone: +905336834198
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.