Comparison of Magnesium Sulfate and Tramadol as an Adjuvant to Intravenous Regional Anesthesia for Upper Extremity Surgeries.

Background: Intravenous Regional Anesthesia (IVRA) is a simple efficient method for providing regional anesthesia of the limbs. However, it has some limitations such as lack of postoperative analgesia.

Objectives: This study aimed to compare the analgesic effects of magnesium sulfate and tramadol when added to lidocaine used for IVRA in upper limb surgery.