Dexmedetomidine versus Clonidine as Intrathecal Adjuvants to Hyperbaric Ropivacaine for Subarachnoid Block in Patients with History of Scorpion Bite undergoing Infraumbilical Surgery: A Double-blinded Randomised Clinical Study
Introduction: Patients with previous scorpion sting may show variable response to spinal local anaesthetics because scorpion toxins can alter voltage-gated sodium-channel behaviour. Ropivacaine and intrathecal alpha-2 agonists may improve block reliability in this subgroup. Aim: To compare intrathecal dexmedetomidine...