Introduction: Major laparotomies generally herald high pain scores postoperatively and have high intraoperative hemodynamic shifts. Traditional analgesic regimens with intravenous opioids were supplanted with the superior epidural analgesia (EA) in the mid-1980s. This was based on the perception that EA provided highly effective postoperative analgesia for patients undergoing major ab... https://www.allfixelectricales.shop/product-category/masthead-amplifier-power-injector/