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Effective analgesia following surgery promotes the delivery mother’s rapid recovery, improves early ambulation, promotes nursing, and lowers the risk of postoperative thromboembolism. The purpose of this work was to assess the postoperative analgesic efficiency of mixing local anesthetic with dexmedetomidine (DEX) in quadratus lumborum block (QLB) after a cesarean section (CS). 50 patients who underwent a cesarean delivery under spinal anesthesia with an average body mass index (BMI) ranging from 18.5 to 34.9 Kg/m 2  participated in this double-blinded randomized-controlled study. Two equally sized groups of patients were formed: Group B got QLB with 20 ml of 0. 25% bupivacaine on both sides in addition to DEX 0.5 μg/kg, while group A received QLB with 20 ml of 0.25% bupivacaine in each side alone. The total amount of morphine used in the initial 24 hours after surgery and the number of patients who require morphine at 8, twelve, and 24 hours later were substantially decreased in group B than in group A. There was a significant decrease in time to first ambulation and in the Numerical Rating Scale (NRS) after four hours postoperatively in group B than in group A. In group B, three individuals experienced bradycardia, and two patients experienced hypotension as DEX-related side effects. The period of postoperative analgesia is prolonged, and the administration of opiates after surgery is decreased when DEX is added to local anesthetics in QLB.

egyptian journal of anaesthesia

Evaluation of the analgesic efficacy of dexmedetomidine as an adjuvant to local anesthesia in quadratus lumborum block after cesarean section: A randomized controlled trial