Comparing Different Doses of Dexmedetomidine Combined with Ropivacaine for Ultrasound-Guided Supraclavicular Brachial Plexus Block in Upper Limb Surgeries - A Prospective Randomized Controlled Trial.

Background: Dexmedetomidine is used as an adjuvant to local anesthetic agents to provide prolonged analgesia in peripheral nerve blocks. This study aimed at determining the optimal dose of dexmedetomidine, which when combined with ropivacaine will produce a superior quality block in terms of extended pain-free period and reduced perioperative analgesic/opioid use, which in turn improves patient satisfaction.

Objective: The objective of the study is to assess the duration of analgesia with two different doses (25 μg and 50 μg) of dexmedetomidine with ropivacaine in supraclavicular brachial plexus block.