Comparison of the oropharyngeal leak pressure in head rotation between a first-generation laryngeal mask and the i-gel laryngeal mask during general anesthesia - a randomized controlled trial.

ABSTRACT:

Background

The laryngeal mask airway (LMA) is essential in anesthesia, using an air-inflatable cuff for optimal pharyngeal fit. The i-gel^® LMA (i-gel) is unique for its thermoplastic elastomer material making an air-inflatable cuff unnecessary and has shown higher oropharyngeal leak pressure (OLP) than first-generation LMA (cLMA) in neutral head position, however, mixed results for head rotation. This prospective study aimed to compare OLP between the cLMA and i-gel during head rotation.

Methods

Patients undergoing elective surgery securing the airway with either cLMA or i-gel were included. Exclusion criteria included a Body Mass Index > 30 kg/m², cervical spine pathologies or restricted head rotation. OLP was measured after induction at 60° bilateral head rotati

SUBMITTER: Brandhorst P 

PROVIDER: S-EPMC12445029 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature