Comparison of the Ambu AuraGain and Intersurgical i-Gel Laryngeal Masks in Elective Laparoscopic Cholecystectomy

Prospective, controlled, randomized study to compare Ambu AuraGain with Intersurgical i-Gel mask during mechanical ventilation in patients undergoing laparoscopic cholecystectomy. The investigators hypothesise that when comparing the Ambu® AuraGainTM with Intersurgical i-GelTM mask, the Ambu® AuraGainTM would exhibit a higher oropharyngeal leak pressure (OLP) during mechanical ventilation in patients undergoing laparoscopic cholecystectomy. The main goal is to compare the Ambu AuraGain with the i-Gel in terms of safety and efficacy during mechanical ventilation in critical phase of the pneumoperitoneum in lateral decubitus and reverse trendelemburg position. Secondary objectives are comparing insertion time, number of attempts, ventilatory airway peak pressure, time and success rates for gastric tube insertion and the incidence of side effects.