The Use of Laryngeal Mask Airway Versus Endotracheal Intubation in Pediatric Laparoscopic Inguinal Hernia Repair: RCT

Infographic · Sep 2025 · 1 min read

In brief

This RCT of 50 pediatric patients (12 months-8 years) compared LMA versus ETT during laparoscopic inguinal hernia repair. No clinically significant differences in oxygenation or CO2 levels were found, though ETT patients had higher peak airway pressures. LMA proved safe and effective for short pediatric laparoscopic procedures.

LMA provides equivalent oxygenation and ventilation to ETT during pediatric laparoscopic inguinal hernia repair in children 12 months to 8 years.
Patients with LMA had significantly lower peak airway pressures compared to ETT at all measured timepoints during laparoscopy.
Laryngospasm and desaturation rates were comparable between LMA and ETT groups, with only one desaturation event in each arm.
LMA is a safe alternative to ETT for short laparoscopic procedures in appropriately selected pediatric patients.
Traditional endotracheal intubation may not be necessary for brief pediatric laparoscopic cases when LMA selection criteria are met.

Written by the GCMD Library team from the infographic.

The infographic uses a three-section layout with teal, gray, and yellow color blocks. Left side shows illustrations of a child patient and medical equipment. Center and right sections display study details with icons of a surgeon and laparoscopic monitor. Key findings are presented with bullet points in different colors (gray, burgundy, green) to indicate neutral, comparative, and positive outcomes.

Emily L. Weisberg, Benjamin J. Pieters , Meredith S. Elman , Cory J. Nonnemacher, Janelle Noel-MacDonnell , Tolulope A. Oyetunji

Background

A laryngeal mask airway (LMA) is routinely used for many types of pediatric surgical procedures and as a rescue airway device. Laparoscopic procedures in pediatric surgery are common and are becoming increasingly widespread. In laparoscopic surgery, the traditional airway approach is the use of endotracheal intubation, while the use of LMA in laparoscopic surgery is not well studied.

Aims

To evaluate the effectiveness of general anesthesia with LMA versus traditional endotracheal tube (ETT) for pediatric patients aged 12 months to 8 years old undergoing laparoscopic inguinal hernia repair.

Methods

In a single institution prospective randomized trial, pediatric patients undergoing laparoscopic inguinal hernia repair were recruited from April 2023 to May 2024. Patients were randomized to general anesthesia with either an LMA or ETT. The primary endpoint was oxygen saturation in percent saturation (SpO2) measured at three standardized timepoints. Secondary endpoints were end tidal carbon dioxide (EtCO2) levels and peak airway pressure (PAP) measurements at the same three standardized timepoints as well as the occurrence of any episodes of laryngospasm or desaturation documented in each group.

Results

Fifty patients underwent laparoscopic inguinal hernia surgery with general anesthesia, twenty-five patients with LMA and twenty-five with ETT. There was no clinically significant difference in oxygenation between study groups. Additionally, there was no statistically significant difference between study arms in EtCO2 levels. Patients with ETT had higher peak airway pressures compared to patients with LMA at all three time points. There was one incident of desaturation in each study arm and no episodes of laryngospasm.

Conclusions

The use of LMA in short laparoscopic surgery is a safe and effective alternative to ETT in appropriate pediatric patients.

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