Labetalol Infusion and Dexmedetomidine Infusion in Hypotensive Anesthesia

Inclusion Criteria: * American Society of Anesthesiologists I, II (ASA I, II) patients who were candidate for Ear, Nose and Throat surgeries. * Age: between 20 and 50 years Exclusion Criteria: * Patients with uncontrolled hypertension, variable degrees of heart block, congestive cardiac failure, coagulopathy, cerebral insufficiency, hepatic or renal abnormality * Patients on beta blocker or clonidine * Pregnant or lactating females * Patients who were allergic to any of the anesthetic or hypotensive drugs used in the study * Patient refusal to be included in the trial