Comparing the Efficiency of Laryngeal Mask Airway and Endotracheal Tube Insertion in Airway Management in Patients Planning for Elective Orthopedic Surgery under General Anesthesia: A Randomized Clinical Trial

Abstract

Objectives: The present study compared respiratory parameters between the two methods of airwayestablishment, ETT and LMA, for patients scheduled for orthopedic surgery with general anesthesia.Methods: This randomized double-blinded clinical trial was conducted on patients scheduled for electiveorthopedic surgery under general anesthesia, in Bandar Abbas, Iran, from January 2021 to December 2021.Using a random allocation table, the study participants were randomly divided into two groups, to employeither ETT (n=48) or LMA insertion (n=48). The study’s ultimate goal was to assess the respiratory parametersin 1, 3, 5, 10, and 15 minutes following intubation.Results: At all-time points, the average of peak airway pressure (P peak) and P plateau parameters in theETT group was much higher than the EMA group (p0.05).Conclusion: In terms of arterial oxygen saturation stability and at the same time providing respiratory dynamiccompliance, the LMA device outperformed the ETT.

Keywords

• laryngeal mask airway
• endotracheal intubation
• dynamic lung compliance