Comparing anesthesia needs for ventilation with endotracheal tube versus laryngeal mask airway

Anaesthesia Requirements for Ventilation With Endotracheal Tube Versus ProSeal Laryngeal Mask Airway During Automated Feedback-Loop Controlled Total Intravenous Anaesthesia in Patients Undergoing Laparoscopic Cholecystectomy: A Randomised Controlled Study

Not applicable Interventional Sir Ganga Ram Hospital · NCT03812718

This study is testing if using a laryngeal mask airway instead of an endotracheal tube during surgery can provide the same level of anesthesia with less medication needed.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment160 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorSir Ganga Ram Hospital Academic / other
Locations1 site (New Delhi, National Capital Territory of Delhi)
Trial IDNCT03812718 on ClinicalTrials.gov

What this trial studies

This study compares the anesthesia requirements for controlled ventilation using an endotracheal tube (ETT) versus a ProSeal Laryngeal Mask Airway (PLMA) during elective laparoscopic cholecystectomy. It aims to establish whether the PLMA can maintain equivalent anesthesia depth with lower anesthetic requirements compared to ETT. The study utilizes a closed loop anesthesia delivery system (CLADS) to measure and compare the anesthetic gas concentrations needed for both methods. The findings could provide valuable insights into optimizing anesthesia practices.

Who should consider this trial

Good fit: Ideal candidates for this study are patients classified as ASA physical status I or II who are scheduled for elective laparoscopic cholecystectomy.

Not a fit: Patients with anticipated difficult airways, obesity (BMI > 30 kg/m2), or uncontrolled medical conditions may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to reduced anesthetic requirements and improved recovery outcomes for patients undergoing laparoscopic cholecystectomy.

How similar studies have performed: Previous studies have suggested potential advantages of LMA over ETT, but this study aims to provide more robust evidence using objective monitoring techniques.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. ASA physical status I/II
2. Undergoing elective laparoscopic cholecystectomy

Exclusion Criteria:

1. Anticipated difficult airway
2. Body mass index \> 30-kg/m2
3. Uncompensated cardiovascular disease (e.g. uncontrolled hypertension, atrio-ventricular block, sinus bradycardia, congenital heart disease, reduced LV compliance, diastolic dysfunction)
4. Hepato-renal insufficiency
5. Uncontrolled endocrinology disease (e.g. diabetes mellitus, hypothyroidism)
6. Known allergy/hypersensitivity to the study drug (propofol)
7. Drug dependence/substance abuse/psychiatric illness
8. Requirement of postoperative ventilation
9. Refusal to informed consent

Where this trial is running

New Delhi, National Capital Territory of Delhi

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 CholelithiasesCholecystolithiasis
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.