Effect of Cuff Pressure During Operation on Postoperative Sore Throat

When general anesthesia is performed for surgery, tracheal intubation is performed. In order to ventilate after performing tracheal intubation, air is injected into the cuff attached to the tube to fill the gap between the tracheal tube and the patients's inner surface of trachea. Even though, 20 to 30 cm H2O is known to be the appropriate pressure to prevent air leaks while preventing ischemic damage of tracheal mucosa. So, Researchers want to observe clinical differences in pressure at both ends of the safety zone of the cuff pressure.