To study the long term benefits of Ultrasound guided Erector Spinae Plane block on Post Mastectomy Pain Syndrome in patients undergoing breast surgery: A Randomized Controlled Trial

The peri-operative pain management appeared as major point to reduce the risk of chronic pain after surgery. A potential target for an interventional procedure for chronic pain after treatment for breast cancer is the Erector Spinae Plane (ESP) block. Here, local anaesthetic is deposited deep to the erector spinae muscle which results in blocking of the ventral and dorsal rami of multiple spinal nerve dermatomes from vertebral C5 to T6. Local anaesthetic expected to achieve paravertebral spread of three vertebral levels cranially and four levels caudally. This block can be given unilaterally for breast surgeries with anaesthesia similar to that of thoracic epidural block without its hemodynamic side effects.  In this study we will compare ESP block with control for prevention of post mastectomy pain syndrome.