This study aims to compare dexmedetomidine and lidocaine infusions as adjuvants to general anesthesia for chronic pain management after mastectomy.
Age from 18 to 75 years.
American Society of Anesthesiologists (ASA) physical status II.
Scheduled for mastectomy with axillary dissection (either modified radical mastectomy with or without latissimus dorsi flap or conservative breast surgery) due to breast cancer.
Patient refusal.
Known allergy to any of the study drugs.
Those with hepatic or renal insufficiency.
Patients who are running regularly on B blockers.