To Evaluate the efficacy of PECS block as standalone anaesthesia technique for modified radical mastectomy- A Prospective interventional study.

Breast cancer is the most common malignancy among women and Modified Radical Mastectomy is a frequently performed surgery. General anaesthesia, though standard, carries risks such as airway manipulation, postoperative nausea, vomiting, and hemodynamic instability, especially in high-risk patients. Pectoral nerve blocks (PECS I and II) provide a simple, ultrasound-guided regional technique that blocks pectoral, intercostobrachial, intercostal, long thoracic, and thoracodorsal nerves, reducing opioid use and recovery time. This prospective single-arm interventional study aims to evaluate the efficacy of PECS I and II blocks using 0.5 percent Ropivacaine with Dexamethasone under Dexmedetomidine sedation as the sole anaesthetic technique for Modified Radical Mastectomy. The primary outcome is successful completion of surgery without conversion to general anaesthesia. Secondary outcomes include intraoperative hemodynamic stability, intraoperative opioid requirement, and duration and quality of postoperative analgesia.