Comparison of proseal laryngeal mask airway and Streamlined Liner of the Pharynx Airway for gastric distension in the patients undergoing laparoscopic cholecystectomy.

This study compares two devices used during surgery to keep your airway open while you are under general anaesthesia for a keyhole gallbladder removal (laparoscopic cholecystectomy). The two devices are called the ProSeal Laryngeal Mask Airway (LMA-P) and the Streamlined Liner of the Pharynx Airway (SLIPA). The main question is which device is less likely to cause air to accidentally enter the stomach during surgery, which is known as gastric insufflation. You may be eligible if: - You are aged 18 to 80 years old - You are in good to moderate general health (ASA class 1 or 2) - You are scheduled for elective laparoscopic cholecystectomy under general anaesthesia You may NOT be eligible if: - You have diabetes - You have gastroesophageal reflux disease (GERD) - You have a neurological or musculoskeletal condition affecting the airway - You are obese (BMI over 30) - You have a history of or features suggesting a difficult airway Talk to your doctor about whether this trial might be right for you.