Not Yet RecruitingNot Applicable

Effect Of Left Head Rotation On Glottic View During Video Laryngoscopy In Obese Adults

50 participantsStarted 2026-05

Plain-language summary

This study aims to evaluate whether the Left Head Rotation (LeHeR) maneuver improves visualization of the vocal cords during video laryngoscopy in obese adult patients undergoing general anesthesia. Obesity is associated with increased difficulty in airway management due to excess upper airway soft tissue and altered anatomy, which may impair visualization during intubation. In this prospective observational study, 50 adult patients with a body mass index (BMI) ≥30 kg/m² will undergo video laryngoscopy using a C-MAC D-blade. The glottic view will be assessed using the Percentage of Glottic Opening (POGO) score in the standard sniffing position and after rotating the head 45 degrees to the left (LeHeR maneuver). A difference in POGO score between the two positions will be analyzed. Secondary outcomes include ease of intubation, number of attempts, time to successful intubation, and occurrence of complications such as desaturation or airway trauma. The study is expected to determine whether the LeHeR maneuver is a simple and effective technique to improve airway visualization in obese patients.

Who can participate

Age range

18 Years – 65 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 * Adult patients aged 18-65 years * Body mass index (BMI) ≥30 kg/m² * ASA physical status I-III * Scheduled for elective surgical procedures under general anesthesia requiring endotracheal intubation Exclusion Criteria: * Anticipated need for nasal intubation * Facial or upper airway pathology preventing laryngoscope insertion * Cervical spine instability or contraindication to head movement * Pregnant patients

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

Change in Percentage of Glottic Opening (POGO) Score between Sniffing Position and Left Head Rotation

Timeframe: Baseline during induction of anaesthesia at the time of video laryngoscopy on Day 1 (single intra-operative assessment)

Trial details

NCT IDNCT07590739

SponsorRoyal Hospital, Oman

Sponsor typeOTHER_GOV

Study typeOBSERVATIONAL

Primary completion2026-12

Contact for this trial

Kalesh Divakar, MD

+968 92452839 drkalesh@gmail.com

View on ClinicalTrials.gov More Difficult Airway trials