Comparison of Two Different Doses of Dexmedetomidine Added to Lignocaine in Patients Posted for Upper Limb Orthopedic Surgery Under Intravenous Regional Anaesthesia

比较两种不同剂量右美托咪定联合利多卡因用于接受静脉区域麻醉下上肢骨科手术患者的疗效