Ultrasound Guided Infraclavicular Block for Pain Control After Upper Extremity Surgery
Background: Opioids added to local anesthetics for peripheral nerve blocks may intensify analgesia and prolong analgesic and sensorial block duration.These agents may also cause potentiation and prolongation of motor block.Objective: This study compared the postoperative effects of 30 mL of 0.25% bupivacaine +50 mcg fentanyl and 30 mL of 0.25% bupi