• Cheol Lee, Hyeonbin Yim, and Hyangdo Ham.
• Department of Anesthesiology and Pain Medicine, Wonkwang University School of Medicine, Republic of Korea.
• Singap Med J. 2024 Jun 1; 65 (6): 326331326-331.

IntroductionThe experience and perception of pain may vary among individuals.This prospective cohort study aimed to determine the impact of injection pain/withdrawal movement of propofol and rocuronium in the induction of anaesthesia on postoperative pain outcomes in gynaecological laparoscopic surgery.MethodsA total of 100 patients aged 19-60 years received propofol and rocuronium injections for the induction of anaesthesia. The incidence of propofol injection pain (PIP) and rocuronium-induced withdrawal movement (RIWM), postoperative pain scores and total opioid consumption were evaluated, and the associations between PIP/RIWM and postoperative pain outcomes were determined.ResultsVisual analogue scale (VAS) for pain after surgery and total opioid consumption after surgery were significantly higher in patients with PIP or RIWM than in patients without PIP or RIWM. The correlations of PIP/RIWM with VAS at 1 h, VAS at 24 h and total opioid consumption were significant and weakly positive ( r = 0.249, r = 0.234, r = 0.22 and r = 0.234, respectively). The RIWM correlated more positively with pain score compared to PIP at 1 h ( r = 0.408 vs. r = 0.234), PIP at 24 h ( r = 0.398 vs. r = 0.227) and with total opioid consumption for 48 h after surgery ( r = 0.457 vs. r = 0.234).ConclusionDuring anaesthesia induction, the occurrence of PIP and RIWM may predict the severity of postoperative pain and total opioid consumption, with RIWM emerging as a stronger predictor than PIP.Copyright © 2024 Copyright: © 2024 Singapore Medical Journal.

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