الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Background: Erector spinae plane block and quadratus lumborum block can provide analgesia for laparotomy surgeries. This study was conducted to compare their analgesic effects in patients posted for open colorectal cancer resection surgeries. We hypothesized the Erector spinae plane block is superior to the quadratus lumborum block at reducing postoperative pain scores. Therefore, we conducted this study to compare their analgesic efficacy and examine their validity for this type of surgeries. Patients and methods: 76 patients scheduled for open colorectal cancer surgery, aged 40 to 60 years, either sex, BMI 18.5 to 35 Kg/m2 of ASA physical status I or II were included. All patients were randomized into two groups of 38 patients each. Every patient received 20 ml bupivacaine 0.25% and 4 mg dexamethasone for each side. Numerical rating score for pain, morphine consumption, intensity of postoperative nausea and vomiting, serum cortisol and C- reactive protein and duration of analgesia were recorded. Results: Erector spinae plane block provided lower mean pain scores assessed by NRS with statistically significant differences during rest and movement, less frequent and easily controlled breakthrough pain than quadratus lumborum block. There was no difference between the 2 groups in the duration of analgesia. The cumulative morphine consumption after the first and second postoperative 24 hours was lower in ESPB group. The mean total postoperative nausea and vomiting intensity score was lower in ESPB group. There were no statistically significant differences between the 2 groups in the mean postoperative serum levels of cortisol and CRP except for CRP after 48 hours. Conclusion: Erector spinae plane block is an easy and effective opioid sparing analgesic technique. It is recommended to be a part of multimodal analgesia for open colorectal surgeries.