Preemptive Nalbuphine Attenuates Remifentanil-Induced Postoperative Hyperalgesia After Laparoscopic Cholecystectomy: A Prospective Randomized Double-Blind Clinical Trial
Authors Hu J, Chen S, Zhu M, Wu Y, Wang P, Chen J, Zhang Y
Received 6 April 2020
Accepted for publication 6 July 2020
Published 28 July 2020 Volume 2020:13 Pages 1915—1924
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 2
Editor who approved publication: Dr Michael A Überall
Jun Hu,1,2 Shuangshuang Chen,3 Mudan Zhu,3 Yun Wu,1,2 Ping Wang,3 Jinbao Chen,3 Ye Zhang1,2
1Department of Anesthesiology, The Second Hospital of Anhui Medical University, Hefei, People’s Republic of China; 2Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, Anhui, People’s Republic of China; 3Department of Anesthesiology, Tongling People’s Hospital of Anhui Medical University, Tongling, Anhui, People’s Republic of China
Correspondence: Ye Zhang
Department of Anesthesiology, The Second Hospital of Anhui Medical University, 678 Furong Road, Hefei 230601, People’s Republic of China
, Tel +86-551-63869625 Email email@example.com
Background: Remifentanil-induced hyperalgesia (RIH) is a paradoxical phenomenon that may increase sensitivity to painful stimuli. Nalbuphine, which is both a μ-receptor antagonist and κ-receptor agonist, may affect RIH. The aim of this study was to evaluate the effects of nalbuphine on RIH during laparoscopic cholecystectomy.
Methods: A total of 96 patients were divided into the following four groups: 0.4 μg/kg/min of remifentanil with 0.2 mg/kg of nalbuphine (HRNA), 0.4 μg/kg/min of remifentanil with saline (HRSA), 0.1 μg/kg/min of remifentanil with 0.2 mg/kg of nalbuphine (LRNA), and 0.1 μg/kg/min of remifentanil with saline (LRSA). The pain thresholds of postoperative mechanical hyperalgesia were measured with von Frey filaments. Pain intensity and analgesic consumption were recorded up to 48 h after surgery.
Results: Pain thresholds on the inner forearm decreased in the HRSA group compared with the HRNA (P = 0.0167), LRNA (P = 0.0027), and LRSA (P = 0.0318) groups at 24 h after surgery. Pain thresholds on the peri-incisional area decreased in the HRSA group compared with HRNA, LRNA, and LRSA (all P < 0.0001) groups at 24 h after surgery. Patients in the HRNA group showed lower numeric rating scale scores at 1 h (P = 0.0159), 3 h (P = 0.0118), 6 h (P = 0.0213), and 12 h (P = 0.0118) than those in the HRSA group. Postoperative requirement for sufentanil was greater in the HRSA group than the HRNA group during the first 3 h (P = 0.0321) and second 3 h (P = 0.0040). Postoperative sufentanil consumption was also greater in the LRSA group than in the LRNA group during the first 3 h (P = 0.0321) and second 3 h (P = 0.0416).
Conclusion: Preemptive nalbuphine can ameliorate postoperative hyperalgesia induced by high-dose remifentanil in patients undergoing laparoscopic cholecystectomy.
Keywords: hyperalgesia, nalbuphine, remifentanil, pain threshold
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