• Danfeng Wang, Ying He, Xiaohui Chen, Yanling Lin, Yanjie Liu, and Zenggui Yu.
• Department of Anesthesiology, Fujian Provincial Medical College, Fujian Medical University, Fuzhou, China; Division of Anesthesia, Fujian Provincial Hospital, Fuzhou, China.
• Adv Med Sci. 2021 Mar 1; 66 (1): 41-45.

PurposeThis study aimed to evaluate the effects of lateral quadratus lumborum block (QLB) on postoperative pain and recovery in patients undergoing laparoscopic colorectal surgery.Materials And MethodsPatients between 18 and 70 years old, diagnosed with colon or rectal cancer, with American Society of Anesthesiologists (ASA) physical status I or II, and scheduled for laparoscopic colorectal surgery were recruited. Patients were excluded if they were allergic to local anesthetics and unable to complete the procedure of puncture or follow-up evaluation. All included patients were randomly allocated to either QLB or Sham group. The primary outcome was perioperative cumulative sufentanil consumption.ResultsThere were no significant differences between the groups in anesthetic time, operation time, dosage of propofol, and remifentanil (P ​> ​0.05). Patients in the QLB group had significantly less sufentanil consumption both intraoperatively and postoperatively, compared with the Sham group (P ​< ​0.05). Postoperative VAS pain scores on coughing in the QLB group at 2 ​h, 6 ​h, 12 ​h, 24 ​h time points and VAS pain score at rest 2 ​h, 6 ​h after surgery were significantly lower than in the Sham group (P ​< ​0.05). Compared with the Sham group, time to first ambulation and anal flatus after surgery in the QLB group were significantly shorter (P ​< ​0.05). Significant differences of postoperative rescue analgesic usage and QoR-15 score at 48 ​h were found between the two groups (P ​< ​0.05).ConclusionsUltrasound-guided lateral QLB significantly reduced perioperative opioid consumption, alleviated postoperative pain, shortened the time to first ambulation and anal flatus, and enhanced postoperative recovery of the patients undergoing laparoscopic colorectal surgery.Copyright © 2020 Medical University of Bialystok. All rights reserved.

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