We aimed to measure the change in cuff pressure in different positions in neurosurgery cases and to investigate the effect of case length on cuff pressure.

It is an observational study, the cuffs of the endotracheal tubes of the patients who were intubated under general anesthesia between February 2023 and May 2023 will be inflated at 25 cm H2O pressure, and then the pressure line and the pilot balloon will be connected to the anesthesia monitor. The cuff pressure of the patient will be measured from the pilot balloon throughout the case and recorded at half-hour intervals. Postoperative sore throat will be evaluated on the VAS scale. Postoperative cough, hoarseness, and dysphagia symptoms will be evaluated.

Inclusion Criteria:

• Neurosurgery patients between the ages of 18-70 ages
• American Society of Anesthesiologist score I-II-III-IV

Exclusion Criteria:

• Patients with previous tracheostomy
• Patients with tracheal stenosis
• Patients considered as difficult intubation
• Patients who have had more than one intubation attempt
• Patients with an ASA score greater than 4
• Patient who has difficulty understanding visual analog scale (VAS) scores
• Language / communication barrier
• Patients younger than 18 years old

Neurosurgery patients between the ages of 18-70 under general anesthesia in the operating room between February 2022 and April 2022.