Second Generation Supraglottic Airway Devices: A Randomized Comparison of the Ambu Aura Gain Versus the LMA Proseal in Patients Undergoing Laparoscopic Surgeries

Abstract

Background: Second generation Supraglottic airway devices are increasingly used in laparoscopic surgeries. Supraglottic airway devices have no effect on pharyngo-esophageal reflex and prevent aspiration. We attempt to elucidate whether Ambu Aura Gain (AAG) would provide a higher Oropharyngeal Leak Pressure (OLP) with a lower mucosal pressure compared to ProSeal Laryngeal Mask Airway (PLMA). Objective: The present study was done to evaluate and compare Ambu Aura Gain and ProSeal Laryngeal mask airway with respect to number of insertion attempts, ease of insertion, time required for placement, Oropharyngeal leak pressure, hemodynamic changes and complications in laparoscopic surgeries. Method: 60 patients who belong to ASA physical status I & II, posted for laparoscopic surgeries, were divided into two groups of 30 each. Group A (n=30) - Ambu Aura Gain used and Group B (n=30) – ProSeal laryngeal mask used. Result: No significant difference in OLP were observed. Both AAG and PLMA are easy to insert with a similar successful insertion rate on first attempt. The time taken for insertion of AAG was longer than PLMA. Conclusion: AAG provide adequate sealing pressure and easy to insert and can be used effectively as Supraglottic airway device for laparoscopic surgeries.