Patients are randomly assigned to either the oral RAE tube group (Group O) or the reinforced tube group (Group R). In both groups, tracheal intubation is performed using a videolaryngoscope without a stylet, and the first-attempt success rate is compared. Upon emergence from anesthesia and removal of the endotracheal tube, the degree of subglottic injury is assessed and compared between the groups. In addition, postoperative sore throat and hoarseness are evaluated and compared at 1 hour and 24 hours after surgery.
Adults aged 19 years or older
Scheduled to undergo surgery under general anesthesia
Refusal to participate in the study
History of gastroesophageal reflux disease
Inadequate preoperative fasting
Congenital or acquired upper airway abnormalities (e.g., tumors, polyps, trauma, abscesses, inflammation, foreign bodies)