Abstract

Abstract Aims and Objectives: Different regional anesthetic techniques have been described and are frequently used in breast cancer surgeries to provide efficient pain management and reduce the use of opioids. This study’s main goal was to use pain scores to compare the postoperative analgesic effectiveness of pectoral nerve (PECS 1) block with serratus anterior plane (SAP) block, thoracic paravertebral (TPV) block, and erector spinae plane (ESP) block. Comparing the needs for intraoperative analgesia and postoperative anesthesia was one of the secondary goals. Methods: After institutional ethical committee approval and after prospectively registering this trial with the Clinical Trials Registry of India, 25 patients were randomized and enrolled in each group (Group 1 – PECS 1 and SAP block, Group 2 – TPV group, and Group 3 – ESP group). Standard general anesthesia was administered to all the patients and the blocks, as per randomization were performed before anesthesia induction. Results: The demographic characteristics, intraoperative opioid and sevoflurane consumption, and requirement of rescue analgesia were comparable between the three groups. Pain scores at 0 and 6 h were significantly less in the TPV group when compared to the ESP group and PECS 1 with the SAP group (P = 0.005 and P = 0.006, respectively). Pain scores at 12 and 24 h were comparable between three groups. Conclusion: TPV block provides significantly better pain scores at 0 and 6 h, with comparable pain scores at 12 and 24 h, compared to PECS 1 with SAP block and ESP block with comparable adverse events.

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