General anesthesia (GA) is by far the most common utility used for breast surgeries. Different regional techniques have been tried during breast surgery, including thoracic epidural, thoracic paravertebral block, thoracic spinal block and Pecs block.

This study compares postoperative analgesia between ultrasound-guided pectoral nerve block and paravertebral block in carcinoma breast surgeries performed under general anesthesia (GA). Here’s a breakdown: 1. Ethical Approval: The study begins with obtaining approval from an ethical committee, ensuring that the research meets ethical standards. 2. Informed Consent: Informed written consent is obtained from each patient, ensuring they understand the study’s purpose, procedures, and risks. 3. Inclusion and Exclusion Criteria: Criteria are established to select eligible patients for the study, ensuring they meet specific characteristics while excluding those with factors that could confound the results. 4. Patient Selection: Patients with an indication for breast surgery are selected for inclusion in the study. 5. Randomization: Patients undergoing breast surgery under general anesthesia are randomly assigned to one of two groups: Group A receives a pectoral nerve block, while Group B receives a paravertebral block. 6. Postoperative Assessment: Following surgery, both sensory and motor assessments are conducted at regular intervals (every 30 minutes) until the complete regression of the block is observed. This allows for monitoring the duration and effectiveness of each nerve block technique. 7. Pain Assessment: Postoperative pain is assessed using the Visual Analog Scale (VAS), a commonly used tool for subjective pain evaluation. 8. Objective: The primary objective of the study is to compare the efficacy of ultrasound-guided pectoral nerve block versus paravertebral block in providing postoperative analgesia for carcinoma breast surgeries performed under general anesthesia.