The Effect of Intravenous Dexamethasone on Rebound Pain After Interscalene Brachial Plexus Block for Shoulder Surgery

Patients will receive 2 mg midazolam and 50 ug fentanyl for sedation before the block procedure. Each patient will be positioned appropriately, then a high-frequency linear array transducer (13-6 MHz) will be placed in the interscalene region to define the brachial plexus on the short axis. Under sterile conditions, a 50 mm block needle will be advanced into the interscalen area using the in-plane method. After localization and negative aspiration, 15 ML of 5% bupivacaine drug will be injected into the interscalene area. 100 ml of NACI will be given intravenously within 15 minutes. General anesthesia will be performed using 2 mg/kg of propofol and 1-2 µg/kg of fentanyl. Tracheal intubation will be facilitated with 0.6mg/kg rocuronium. Anesthesia will be maintained using 50% oxygen and 2% sevoflurane. Patients will be extubated into the operating room after reversing residual muscle relaxation. A multimodal analgesia regimen will be applied postoperatively.

Patients will receive 2 mg midazolam and 50 ug fentanyl for sedation before the block procedure. Each patient will be positioned appropriately, then a high-frequency linear array transducer (13-6 MHz) will be placed in the interscalene region to define the brachial plexus on the short axis. Under sterile conditions, a 50 mm block needle will be advanced into the interscalene area using the in-plane method. After localization and negative aspiration, 15 ML of 5% bupivacaine drug will be injected into the interscalene area. 5 mg dexamethasone intravenously will be given in 100 ml NACI within 15 minutes. General anesthesia will be performed using 2 mg/kg of propofol and 1-2 µg/kg of fentanyl. Tracheal intubation will be facilitated with 0.6mg/kg rocuronium. Anesthesia will be maintained using 50% oxygen and 2% sevoflurane. Patients will be extubated into the operating room after reversing residual muscle relaxation. A multimodal analgesia regimen will be applied postoperatively.