Effect of intravenous dexmedetomidine on spinal anaesthesia with 0.5% hyperbaric bupivacaine in lower abdominal surgeries: A prospective randomized control study

Regional anesthesia is the preferred technique for most of lower abdominal and lower limb surgeries. For decades, lignocaine had been the local anesthetic of choice for spinal anesthesia. Recent studies show that intravenous clonidine and dexmedetomidine can prolong the duration of the spinal anesthesia. Dexmedetomidine is a more suitable adjuvant compared to clonidine due to its more selective α2A receptor agonist activity.