The Effect of Local Anesthetic Techniques on Hemodynamic Response and Postoperative Sore Throat in Double-Lumen Tubes

Participants will receive 2 ml of 10% lidocaine delivered via a Tracheo-Spray device to the tracheal mucosa before anesthesia induction.

Before intubation, participants will receive 10% lidocaine spray applied to the distal surface and cuffs of the double-lumen tube (DLT).

Before intubation, participants will receive 1 ml of 0.9% saline applied to the distal surface and cuffs of the double-lumen tube (DLT).