Efficacy of pectoral nerve block using bupivacaine with or without magnesium sulfate

Worldwide, breast cancer is the main common cancer among females. In the United States, it affects one in eight women during their lifespan. In breast cancer surgery, chronic pain can be developed from poorly managed acute postoperative pain. The aim of the study was to use a safe, easy, and less complicated method of regional block for reducing the postoperative pain after mastectomy, which will reduce the incidence of chronic postmastectomy pain.