Clinical Performance of Laryngeal Mask Airway Supreme versus Ambu Auragain in Patients Breathing Spontaneously under General Anaesthesia

Background/Objective: The objective is to assess and compare the effectiveness of Ambu Aura Gain (AAG) and Laryngeal Mask Airway Supreme (LMAS) in adult patients undergoing surgery under general anesthesia. Methodology: A total of 100 patients between 18 to 80 years of age, of either gender, American Society of Anaesthesiologists [ASA] grade I or II and Mallampatti grade I or II were selected, categorized as Group A: Patients subjected to LMAS Group B: Patients subjected AAG. The study included patients scheduled for elective short duration surgical procedures (~2hrs), under general anesthesia. The ease of insertion, blood on the SGAD during removal, hemodynamic changes, oropharyngeal leak pressure and the functionality of gastric drain, sore throat were evaluated. Results: The hemodynamic parameters, device failure rate, and presence of blood following removal were similar between the two groups. LMAS, was significantly easier to insert (p = 0.031). Furthermore, compared to LMAS, AAG had a greater success rate for accurate insertion on the first try (92%Vs88%) and considerably superior functioning of gastric drain (p = 0.027), as well as a decreased incidence of sore throat (12% vs 28%; p = 0.046). Conclusion: AAG may be a more suitable compared to LMAS for surgery under general anesthesia the ease of insertion was significantly higher for LMAS. However, AAG had higher success rate for correct placement in first attempt, significantly better gastric drain functionality with lower sore throat complication and relatively better oropharyngeal leak pressure, thus providing a higher margin of safety against the risk of aspiration.