To compare the efficacy and safety of traditional inflatable laryngeal mask, i-gel non-inflatable laryngeal mask and GMA-TULIP non-inflatable laryngeal mask in surgeries with lateral position under general anesthesia, so that providing evidence for the selection of laryngeal mask in surgeries with lateral position.
Patients received surgeries in lateral position with an estimated surgery duration of less than 3 hours under general anesthesia.
Ages between 18 to 80, and body mass index less than 28 kg/m².
American Society of Anesthesiologists (ASA) Grades I-III.
Patients are willing to participate and be able to understand and sign an informed consent form.
Individuals with an open bite of less than 2cm.
Individuals with a history of obvious regurgitation of gastric contents and risk factors for aspiration.
Patients with combined pharyngeal and laryngeal lesions.
Predicting difficult airway patients.