Effect of Endotracheal Intubation on Voice.

Objectives: Following endotracheal intubation (ETI), voice changes can be observed quite frequently. Considering that the pressure that occurs increases as the duration of anesthesia with ETI increases, with the aim to contribute to literature, we realized objective acoustic analysis by grouping patients according to the length of surgical periods. We wanted to investigate both the impact of endotracheal intubation on the voice and how long this impact lasted by performing voice analyzes on the preoperative, postoperative first day and postoperative fifth day.