Comparing video and direct laryngoscopy for intubation in obese patients during surgery

"Effects of Conventional and Video Laryngoscopy Methods on VIDIAC Scores and Hemodynamic Stability in Obese Patients: Comparison of Storz C-MAC3, Scoper MAC-3 and Macintosh"

Observational Harran University · NCT06973434

This study is testing whether using video laryngoscopes is better than the traditional method for helping obese patients get intubated safely during surgery.

Quick facts

Study typeObservational
Enrollment120 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorHarran University Academic / other
Locations2 sites (Şanlıurfa and 1 other locations)
Trial IDNCT06973434 on ClinicalTrials.gov

What this trial studies

This observational study evaluates the effectiveness of two different video laryngoscopes compared to the traditional Macintosh laryngoscope for intubation in obese patients undergoing elective surgery. It focuses on measuring the VIDIAC score, hemodynamic responses, and early postoperative complications such as sore throat and nausea. The study aims to enhance airway management safety, particularly in patients with obesity, who are at higher risk for difficult intubation and anesthesia-related complications. Data will be collected during recovery to assess the outcomes of the different intubation methods.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 65 with a BMI of 30 kg/m² or higher, scheduled for elective surgery requiring endotracheal intubation.

Not a fit: Patients with ASA physical status III, IV, or V, advanced cardiopulmonary disease, or known difficult airways may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve intubation success rates and reduce complications in obese patients undergoing surgery.

How similar studies have performed: Previous studies have shown promising results with video laryngoscopy in difficult airway management, suggesting potential success for this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age between 18 and 65 years
* Body mass index (BMI) ≥30 kg/m²
* ASA physical status I or II
* Scheduled for elective surgery
* Requiring endotracheal intubation
* Provided written informed consent

Exclusion Criteria:

* Refusal to participate in the study
* ASA physical status III, IV, or V
* Advanced cardiopulmonary disease
* Cervical spine movement limitation
* Pregnancy
* Coagulopathy
* Emergency surgery indication
* Known or anticipated difficult airway
* Severe anatomical deformity of the airway

Where this trial is running

Şanlıurfa and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Obesity Difficult Airway Airway ManagementVideo laryngoscopyObesityVIDIAC scoreStorz C-MACScoper MAC
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.