Ultrasound-Guided Erector Spinae Plane Block in Patients Undergoing Open Epigastric Hernia Repair: A Prospective Randomized Controlled Study

BACKGROUND: Hernia repair is associated with considerable postoperative pain. We studied the analgesic efficacy of bilateral ultrasound-guided erector spinae plane block in patients undergoing open midline epigastric hernia repair (T6–T9). METHODS: Sixty patients 18–65 years of age were randomly allocated into 2 groups. Patients in the erector spinae plane block group received bilateral ultrasound-guided erector spinae plane block at the level of T7 transverse process using 20 mL of bupivacaine 0.25% on each side, while the control group received bilateral sham erector spinae plane block using 1 mL of normal saline. All patients underwent general anesthesia for surgery. Pain severity (visual analog scale), consumption of intraoperative fentanyl, time to first request of rescue analgesia, and postoperative pethidine consumption were recorded over the first 24 hours postoperatively. RESULTS: At 2 hours postoperatively, the visual analog scale pain score was significantly lower in the erector spinae plane block group compared to the control group (estimated main effect of 2.53; P

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