Comparative Effects of Intravenous Dexmedetomidine and Ketamine on the Incidence of Shivering During Spinal Anesthesia
Background: Shivering complicates a substantial proportion of subarachnoid blocks, raising oxygen consumption, degrading monitoring and dominating patient recollection of surgery. Dexmedetomidine and ketamine lower the shivering threshold by distinct mechanisms, but direct comparisons under spinal anaesthesia are scarc...