Preemptive Erector Spinae Plane Block Versus Serratus Anterior Plane Block in MRM

Modified radical mastectomy (MRM) is one of the most performed surgeries for breast cancer. MRM is associated with significant pain during the immediate postoperative period. Inadequate pain management has both psychological and physiological repercussions. Various local or regional nerve blocks like thoracic epidural, interscalene brachial plexus, paravertebral, pectoral nerve blocks, and erector spinae plane blocks are performed in MRM to provide analgesia. Ultrasound-guided Erector spinae plane block (USG-ESPB) is one of the novel and effective regional techniques where local anaesthetic is deposited deep into the erector spinae muscle, blocking the ventral and dorsal rami of multiple spinal nerves, and is technically simple, with fewer hemodynamic side effects and with minimal complications