Effect of intravenous infusion of Magnesium Sulphate versus Dexmedetomidine on spinal anesthesia in bilateral inguinal hernia surgeries: A randomized controlled study. in bilateral inguinal hernia surgeries

INTERVENTION: dexmedetomidine magnisum sulphate saline CONDITION: ; Anaesthesia Anaesthesia PRIMARY OUTCOME: the total analgesic duration SECONDARY OUTCOME: duration of sensory and motor blockade onset of sensory and motor blockade Perioperative hemodynamics (heart rate, blood pressure, stroke volume and cardiac output) INCLUSION CRITERIA: patients aged between 20 and 60?years patients with American Society of Anesthesiologists (ASA) class I or class II physical status undergoing uncomplicated bilateral inguinal hernia.