Comparing different laryngeal masks for surgeries under general anesthesia

The Effects of GMA-TULIP, I-gel, and BlockBuster Laryngeal Mask in Surgeries With Lateral Position Under General Anesthesia

Not applicable Interventional The Second Affiliated Hospital of Chongqing Medical University · NCT06782841

This study is testing which of three types of laryngeal masks works best and is safest for patients undergoing surgery while under general anesthesia.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment102 (estimated)
Ages18 Years to 80 Years
SexAll
SponsorThe Second Affiliated Hospital of Chongqing Medical University Academic / other
Locations1 site (Chongqing, Chongqing Municipality)
Trial IDNCT06782841 on ClinicalTrials.gov

What this trial studies

This study aims to compare the efficacy and safety of three types of laryngeal masks: the traditional inflatable laryngeal mask, the i-gel non-inflatable laryngeal mask, and the GMA-TULIP non-inflatable laryngeal mask during surgeries performed in a lateral position under general anesthesia. The research focuses on evaluating the airway sealing effectiveness of these masks, which is crucial for maintaining hemodynamic stability and minimizing complications during anesthesia. By analyzing patient outcomes, the study seeks to provide evidence for the optimal selection of laryngeal masks in this surgical context.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 80, with a body mass index under 28 kg/m², undergoing lateral position surgeries lasting less than 3 hours under general anesthesia.

Not a fit: Patients with a history of aspiration risk, difficult airway predictions, or significant cognitive impairments may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance airway management during surgeries, leading to improved patient safety and comfort.

How similar studies have performed: Previous studies have shown varying success with different laryngeal masks, but this specific comparison is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Patients received surgeries in lateral position with an estimated surgery duration of less than 3 hours under general anesthesia.
2. Ages between 18 to 80, and body mass index less than 28 kg/m².
3. American Society of Anesthesiologists (ASA) Grades I-III.
4. Patients are willing to participate and be able to understand and sign an informed consent form.

Exclusion Criteria:

1. Individuals with an open bite of less than 2cm.
2. Individuals with a history of obvious regurgitation of gastric contents and risk factors for aspiration.
3. Patients with combined pharyngeal and laryngeal lesions.
4. Predicting difficult airway patients.
5. Hearing, intellectual, communication, and cognitive impairments.
6. Any reason that prevents cooperation with the study or that the researcher deems inappropriate for inclusion in this trial.

Where this trial is running

Chongqing, Chongqing Municipality

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 Oropharyngeal Leak Pressure
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.