RecruitingNot Applicable

Comparison of Airway Ultrasonography and Laryngoscopy Methods in Obese Patients

Turkey (Türkiye)180 participantsStarted 2026-01-01

Plain-language summary

The main objective of this study was to examine the relationship between classical markers used in assessing difficult airway management in obese patients (Mallampati score, thyromental distance, sternomental distance, neck circumference measurement) and ultrasonographic parameters (vocal cord mobility, glottic opening, hyomental distance, skin-epiglottic distance, and peri-epiglottic space-epiglottic-vocal cord ratio), to compare the effects of these parameters on predicting difficult intubation, and to investigate the effects of different laryngoscopy methods on intubation success and peroperative respiratory complications. The secondary objective of the study is to investigate the effects of different laryngoscopy methods on hemodynamic responses to intubation. Participants' gender, age, height, weight, BMI, ASA physical status classification, smoking status, comorbidities, STOP-BANG and LEMON scores will be recorded. The glottic score percentage (POGO score), glottic visualization time, endotracheal intubation time, use of assistive maneuvers, and Intubation Difficulty Scale (IDS) parameters will be compared according to the laryngoscopy methods used. Participants must meet the following criteria: * Consent given by the patient * Operated under general anesthesia * Over 18 years of age * American Society of Anesthesiologists (ASA) physical status classification I-II-III * Body mass index (BMI) of 30 kg/m2 or higher * Operation duration between 60-150 minutes * Patients undergoing elective surgery.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

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.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Prediction of difficult tracheal intubation

Timeframe: Periprocedural (during tracheal intubation)

Tracheal intubation success according to laryngoscope type

Timeframe: During the tracheal intubation procedure

Trial details

NCT IDNCT07482436

SponsorTrabzon Kanuni Education and Research Hospital

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2026-07-01

Contact for this trial

Ezgi Günaydın, MD

+905336834198 ezgunaydin@gmail.com

View on ClinicalTrials.gov More Correlation of Difficult Airway Markers With Ultrasonographic Measurements in Obese Patients trials