Effect of Intravenous Lignocaine Infusion on Intraoperative End Tidal Desflurane Concentration Requirements

IV bolus of 1.5 mg/kg of lignocaine 2% diluted in 10 ml syringe over 3 mins followed by infusion at 1 mg/kg/h of lignocaine 2% in 20 ml syringe

IV bolus of 10 ml normal saline over 3 min followed by infusion of equal volume of normal saline in 20 ml syringe