A single-centre, prospective, two-arm, observational study to investigate the causative factors of postoperative sore throat (POST) and assess whether maintaining endotracheal tube cuff pressure between 20-30 cm H2O and supraglottic airway device cuff pressure up to 60 cm H2O influences the incidence of POST.

Postoperative sore throat (POST) is a common complication after general anaesthesia, often due to mucosal injury from airway devices, leading to discomfort and delayed recovery. This study aims to evaluate the relationship between perioperative factors and POST, and whether maintaining endotracheal tube cuff pressures between 20–30 cm H2O and supraglottic airway device pressures up to 60 cm H2O reduces its incidence. Adult patients over 18 years undergoing surgeries under general anaesthesia with ASA Grade 1 or 2 status will be included, while those with pre-existing throat conditions, undergoing specific throat surgeries, or requiring postoperative ventilation will be excluded. Patients will be divided into two groups: one with continuous cuff pressure monitoring and one with standard practice. The study will record demographics, medical history, anaesthesia details, and postoperative outcomes over one year with a total sample size of 50 patients. The primary endpoint is to compare the incidence of POST between the two groups, and the secondary endpoint is to assess the influence of perioperative variables on POST occurrence.